CN219131255U

CN219131255U - Welding positioning tool for pole lugs of flexible square shell power battery module

Info

Publication number: CN219131255U
Application number: CN202223005164.2U
Authority: CN
Inventors: 卫炳霖; 王贵超; 孙强; 李晓海
Original assignee: Tianjin EV Energies Co Ltd
Current assignee: Tianjin EV Energies Co Ltd
Priority date: 2022-11-11
Filing date: 2022-11-11
Publication date: 2023-06-06
Anticipated expiration: 2032-11-11

Abstract

The utility model provides a flexible square shell power battery module tab welding positioning tool which comprises a positioning base assembly, a plurality of battery cell positioning mechanisms for positioning module battery cells and a plurality of end plate positioning mechanisms for positioning module end plates, wherein the positioning base assembly is used for positioning the module battery cells; the battery cell and the busbar are placed on the module backing plate of the positioning base assembly, the positioning base assembly comprises a bottom plate, two backing plate supporting frames are arranged in the middle of the bottom plate, the module backing plate is placed above a plurality of backing plate supporting plates, two end plate positioning mechanisms are respectively arranged on two axial sides of the backing plate supporting plates X, and a plurality of battery cell positioning mechanisms are respectively arranged on two axial sides of the backing plate supporting plates Y. The utility model solves the problems that the development period of the welding tool is long, the efficiency of replacing the welding tool when different products are switched and produced is low and the positioning cannot be adjusted quickly in the trial production process of the same product in the conventional square shell power research and development trial production process.

Description

Welding positioning tool for pole lugs of flexible square shell power battery module

Technical Field

The utility model belongs to the field of battery welding, and particularly relates to a flexible square shell power battery module tab welding positioning tool.

Background

The power battery module consists of a shell, a battery core and an end plate, and a welding tool is required to position each component of the battery during development and production of the power battery in the prior art so as to meet the requirements of positioning, compacting, fixing and the like during welding; the conventional welding tool generally comprises a substrate for placing a module, a positioning block for positioning a cell and a pressing unit for fixing the module; in the prior art, a welding tool of a corresponding product needs to be developed before trial production of each new product; disadvantages of the prior art: (1) In the development and trial production process, the development and production period of the welding tool is longer; under the background of rapid development of industry, the demand development time is short, and the market demand is rapidly corresponding; (2) In the development and trial production process, when different products are produced in a switching way, the switching of the welding tool is time-consuming and labor-consuming, the switching time is long, and the efficiency is low; (3) In the development trial production process, the existing tool cannot be quickly adjusted to face the same product, and the production efficiency of the product is affected.

Disclosure of Invention

In view of the above, the present utility model is directed to a welding positioning tool for a tab of a flexible square-shell power battery module, so as to solve the above-mentioned problems.

In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:

a flexible square shell power battery module tab welding positioning tool comprises a positioning base assembly, a plurality of battery core positioning mechanisms for positioning battery cores of a module and a plurality of end plate positioning mechanisms for positioning end plates of the module; the battery cell and the busbar are placed on the module backing plate of the positioning base assembly, the positioning base assembly comprises a bottom plate, two backing plate supporting frames are arranged in the middle of the bottom plate, the module backing plate is placed above a plurality of backing plate supporting plates, two end plate positioning mechanisms are respectively arranged on two axial sides of the backing plate supporting plates X, and a plurality of battery cell positioning mechanisms are respectively arranged on two axial sides of the backing plate supporting plates Y.

Further, the module base plate is mounted to two parallel base plate supporting frames through base plate supporting plates, the module base plate comprises a fixed base plate and detachable base plates, and the detachable base plates are arranged on two sides of the fixed base plate; the bottom of two backing plate support frames still is equipped with two strengthening frames, and two strengthening frames divide into three electric core location areas with the region between two backing plate support frames, and every electric core location area both sides all correspond an electric core positioning mechanism.

Further, the battery cell positioning mechanism comprises two battery cell positioning slide rails, a battery cell positioning base, a battery cell positioning mounting plate and a battery cell positioning elbow clamp which are arranged in parallel; the battery cell positioning slide rails are fixedly arranged on the bottom plate, the bottom surface of the battery cell positioning base is respectively and slidably connected to the two battery cell positioning slide rails through two sliding blocks, and the battery cell positioning mounting plate is vertically arranged on the battery cell positioning base, so that the overall cross section formed by the battery cell positioning mounting plate and the battery cell positioning base is L-shaped; the middle part of the battery cell positioning mounting plate is provided with a mounting plate adjusting bolt, and one side, close to the battery cell, of the upper eave of the battery cell positioning mounting plate is provided with a plurality of battery cell positioning blocks; the electric core positioning elbow clamp is mounted on the bottom plate and arranged between the two electric core positioning sliding rails, a push-pull rod of the electric core positioning elbow clamp corresponds to the electric core positioning bottom plate, and the push-pull rod can be in contact with the electric core positioning bottom plate but is not fixed.

Further, the middle part of electric core positioning mounting panel is equipped with a plurality of lightening holes, be equipped with mounting panel adjusting bolt between a plurality of lightening holes, mounting panel adjusting bolt corresponds the backing plate backup pad, the quantity of electric core locating piece is 3, and the electric core locating piece of every electric core positioning mechanism all corresponds the electric core of placing on the module backing plate.

Further, the end plate positioning mechanism comprises an end plate positioning plate and an end plate fixing assembly, two end plate positioning sliding rails which are parallel to each other are arranged on the end plate positioning plate, the end plate fixing assembly is matched with the end plate positioning sliding rails through sliding blocks to realize sliding of the end plate fixing assembly, a positioning screw rod is arranged in the middle of the end plate positioning plate and is mounted to the end plate positioning plate through a screw rod frame, one end of the positioning screw rod is arranged between fastening frames, and the fastening frames are used for braking the positioning screw rod; the positioning screw rod is provided with a nut seat, and the nut seat is connected with the end plate fixing assembly.

Further, a transition block is arranged between the end plate fixing assembly and the sliding block; the fastening frame is fixedly mounted on the end plate locating plate, a locating groove for placing a locating screw rod is formed in the middle of the fastening frame, and a screw rod handle for tightening the locating groove is arranged on one side of the fastening frame.

Further, the end plate fixing assembly comprises an adjusting plate, the adjusting plate is in an I shape integrally, four corners of the adjusting plate are respectively provided with an adjusting groove, two adjusting grooves on one side of the adjusting plate, far away from the die set backing plate, are respectively provided with an end plate fine adjusting assembly, two adjusting grooves on one side of the adjusting plate, close to the die set backing plate, are respectively provided with a locating pin fine adjusting assembly, the two end plate fine adjusting assemblies are used for adjusting the locating end plates, and the two locating pin fine adjusting assemblies are used for adjusting the locating end plate bottom plates.

Further, the end plate fine adjustment assembly comprises an end plate locating pin, a first installation block, a first adjusting bolt and a first guide post; an adjusting bolt and a guide post are installed in the adjustment tank, an installation seat is connected with an adjusting bolt thread simultaneously and is sleeved with the guide post, the movement of an installation block is realized through adjusting the adjusting bolt, an end plate locating pin is vertically installed on the surface of an installation plate, and the end plate locating pin is used for locating an end plate.

Further, locating pin trimming module includes bottom plate locating pin, no. two installation blocks, no. two adjusting bolts and No. two guide posts are installed to the adjustment tank, no. two installation blocks are connected with No. two adjusting bolts simultaneously, cup joint with No. two guide posts, realize No. two removal of installation blocks through adjusting No. two adjusting bolts, no. two adjusting blocks are installed to No. two installation block upper surfaces through two bolts, no. two adjusting blocks are equipped with two slotted holes, realize the fine setting to No. two adjusting blocks, no. two both sides of No. two installation block upper surface are equipped with the lateral wall, form the adjustment passageway between two lateral walls, no. two adjusting blocks agree with the adjustment passageway, realize spacing to No. two adjusting blocks.

Further, the limiting top plate is arranged above the adjusting plate and is integrally T-shaped, two limiting oblong holes corresponding to the end plate positioning pins are formed in the limiting top plate, and the two end plate positioning pins penetrate through the limiting oblong holes to limit the end plate positioning fine adjustment range.

Compared with the prior art, the welding positioning tool for the pole lugs of the flexible square shell power battery module has the following advantages:

(1) The flexible square shell power battery module tab welding positioning tool can solve the problems that in the conventional square shell power research and development trial production process, the generated welding tool has long development period, the welding tool replacement efficiency is low when different products are switched and produced, and the positioning cannot be adjusted quickly in the same product trial production process.

(2) The welding positioning tool for the electrode lugs of the flexible square shell power battery module can improve welding efficiency and yield of welding finished products.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

fig. 1 is a schematic diagram of a welding positioning tool for a tab of a flexible square-shell power battery module according to an embodiment of the utility model;

FIG. 2 is a schematic view of a positioning base assembly according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram of a cell positioning mechanism according to an embodiment of the present utility model;

FIG. 4 is a schematic view of an end plate positioning mechanism according to an embodiment of the present utility model;

fig. 5 is a schematic view of an end plate positioning assembly according to an embodiment of the utility model.

Reference numerals illustrate:

1. positioning a base assembly; 11. a bottom plate; 12. a backing plate support frame; 13. a backing plate support plate; 14. a module backing plate; 141. fixing the backing plate; 142. a detachable backing plate; 15. a reinforcing frame; 2. a cell positioning mechanism; 21. positioning a sliding rail of the battery cell; 22. a battery cell positioning base; 23. a cell positioning mounting plate; 24. positioning an elbow clamp of the battery cell; 25. mounting plate adjusting bolts; 26. a cell positioning block; 3. an end plate positioning mechanism; 31. an end plate positioning plate; 311. an end plate positioning slide rail; 312. positioning a lead screw; 313. a fastening frame; 32. an end plate fixing assembly; 321. an adjustment plate; 322. an adjustment groove; 323. an end plate fine tuning assembly; 3231. an end plate locating pin; 3232. a first mounting block; 3233. a first adjusting bolt; 3234. a first guide post; 324. a locating pin fine adjustment assembly; 3241. a bottom plate locating pin; 3242. a second mounting block; 3243. a second adjusting block; 3244. a second adjusting bolt; 3245. a second guide post; 325. and limiting the top plate.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", 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 devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus 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", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.

The utility model will be described in detail below with reference to the drawings in connection with embodiments.

A flexible square shell power battery module tab welding positioning tool, as shown in figure 1, comprises a positioning base assembly 1, a plurality of cell positioning mechanisms 2 for positioning module cells and a plurality of end plate positioning mechanisms 3 for positioning module end plates; the battery cells and the bus bars are placed on a module backing plate 14 of the positioning base assembly 1, the positioning base assembly 1 comprises a bottom plate 11, two backing plate supporting frames 12 are arranged in the middle of the bottom plate 11, the module backing plate 14 is placed above a plurality of backing plate supporting plates 13, two axial sides of the backing plate supporting plates 13X are respectively provided with an end plate positioning mechanism 3, and two axial sides of the backing plate supporting plates 13Y are respectively provided with a plurality of battery cell positioning mechanisms 2.

Preferably, as shown in fig. 1-2, the module pad 14 is mounted to two pad support frames 12 arranged in parallel through a pad support plate 13, the module pad 14 includes a fixed pad 141 and a detachable pad 142, and the detachable pad 142 is disposed at both sides of the fixed pad 141; the bottoms of the two pad support frames 12 are also provided with two reinforcing frames 15, and the two reinforcing frames 15 are used for providing supporting force for the pad support frames 12; the two reinforcing frames 15 divide the area between the two backing plate supporting frames 12 into three cell positioning areas, and two sides of each cell positioning area correspond to one cell positioning mechanism 2.

Preferably, as shown in fig. 3, the cell positioning mechanism 2 includes two parallel cell positioning slide rails 21, a cell positioning base 22, a cell positioning mounting plate 23 and a cell positioning toggle clamp 24; the cell positioning toggle clamp 24 is a common fixture in the market; the two electric core positioning slide rails 21 are fixedly mounted on the bottom plate 11, the bottom surface of the electric core positioning base 22 is respectively and slidably connected to the two electric core positioning slide rails 21 through two sliding blocks, and the electric core positioning mounting plate 23 is vertically mounted on the electric core positioning base 22, so that the whole cross section formed by the electric core positioning mounting plate 23 and the electric core positioning base 22 is L-shaped; the middle part of the battery cell positioning mounting plate 23 is provided with a mounting plate adjusting bolt 25, and one side of the upper eave of the battery cell positioning mounting plate 23, which is close to the battery cell, is provided with a plurality of battery cell positioning blocks 26; the cell positioning elbow clamp 24 is mounted on the bottom plate 11 and is arranged between the two cell positioning sliding rails 21, a push-pull rod of the cell positioning elbow clamp 24 corresponds to the cell positioning bottom plate 11, the push-pull rod can be in contact with the cell positioning bottom plate 11 but is not fixed, when the cell positioning elbow clamp 24 is controlled to position a battery module, the push-pull rod pushes the cell positioning mounting plate 23 to move forward, after welding is finished, the positioning elbow clamp is loosened, the push-pull rod is separated from the cell mounting plate, due to the fact that after welding, some adhesion exists between a module cell and the cell positioning mounting plate 23, if the push-pull rod is fixed with the cell mounting plate, the cell mounting plate is separated from the cell in a short time when the push-pull rod retreats, and damage to the cell can be caused when the cell is separated due to the existence of an adhesion part.

Preferably, a plurality of lightening holes are formed in the middle of the battery cell positioning mounting plate 23, mounting plate adjusting bolts 25 are arranged among the lightening holes, the mounting plate adjusting bolts 25 correspond to the backing plate supporting plates 13, the number of the battery cell positioning blocks 26 is 3, and the mounting plate adjusting bolts 25 can finely adjust the distance between the positioning mounting plate plates and the backing plate supporting plates 13; the cell positioning block 26 of each cell positioning mechanism 2 corresponds to the cell placed on the die set pad 14.

Preferably, as shown in fig. 4, the end plate positioning mechanism 3 includes an end plate positioning plate 31 and an end plate fixing assembly 32, two parallel end plate positioning sliding rails 311 are disposed on the end plate positioning plate 31, the end plate fixing assembly 32 is matched with the end plate positioning sliding rails 311 through a sliding block to realize sliding of the end plate fixing assembly 32, a positioning screw 312 is disposed in the middle of the end plate positioning plate 31, the positioning screw 312 is mounted to the end plate positioning plate 31 through a screw frame, one end of the positioning screw 312 is disposed between fastening frames 313, and the fastening frames 313 are used for braking the positioning screw 312; the positioning screw 312 is provided with a nut seat that is connected to the end plate fixing assembly 32.

Preferably, a transition block is further arranged between the end plate fixing assembly 32 and the sliding block, and the transition block plays roles of supporting connection and height adjustment; the fastening frame 313 is fixedly mounted on the end plate positioning plate 31, a positioning groove for placing the positioning screw 312 is formed in the middle of the fastening frame 313, and a screw handle for tightening the positioning groove is arranged on one side of the fastening frame 313.

Preferably, as shown in fig. 5, the end plate fixing assembly 32 includes an adjusting plate 321, the adjusting plate 321 is in an i shape, four corners of the adjusting plate 321 are respectively provided with an adjusting slot 322, two adjusting slots 322 on one side of the adjusting plate 321 far away from the die set pad 14 are respectively provided with an end plate fine tuning assembly 323, two adjusting slots 322 on one side of the adjusting plate 321 near the die set pad 14 are respectively provided with a positioning pin fine tuning assembly 324, the two end plate fine tuning assemblies 323 are used for adjusting the positioning end plate, and the two positioning pin fine tuning assemblies 324 are used for adjusting the positioning end plate bottom plate 11.

Preferably, the endplate fine tuning assembly 323 includes an endplate locating pin 3231, a first mounting block 3232, a first adjusting bolt 3233, and a first guide post 3234; the first adjusting bolt 3233 and the first guide post 3234 are installed in the adjusting groove 322, the first installation seat is in threaded connection with the first adjusting bolt 3233 at the same time and is sleeved with the first guide post 3234, the first installation block 3232 is moved through adjusting the first adjusting bolt 3233, the end plate locating pin 3231 is vertically installed on the surface of the first installation plate, and the end plate locating pin 3231 is used for locating the end plate.

Preferably, the locating pin fine adjustment assembly 324 includes a base plate 11 locating pin, no. two installation blocks 3242, no. two adjusting blocks 3243, no. two adjusting bolts 3244 and No. two guide posts 3245 are installed to the adjustment tank 322, no. two installation blocks 3242 are connected with No. two adjusting bolts 3244 simultaneously, are sleeved with No. two guide posts 3245, no. two installation blocks 3242 are moved through adjusting No. two adjusting bolts 3244, no. two adjusting blocks 3243 are installed to No. two installation blocks 3242 upper surfaces through two bolts, no. two adjusting blocks 3243 are provided with two slotted holes, fine adjustment of No. two adjusting blocks 3243 is achieved, two sides of the upper surface of No. two installation blocks 3242 are provided with side walls, an adjusting channel is formed between two side walls, the contour of No. two adjusting blocks 3243 is matched with the adjusting channel, limiting of No. two adjusting blocks 3243 is achieved, and No. two adjusting blocks 3243 are convenient to move in a straight line under the guide.

Preferably, a limit top plate 325 is disposed above the adjustment plate 321, the limit top plate 325 is T-shaped, and the T-shaped limit top plate 325 does not affect the operation of the end plate fine adjustment assembly 323 and the positioning pin fine adjustment assembly 324; the limiting top plate 325 is provided with two limiting oblong holes corresponding to the end plate positioning pins 3231, and the two end plate positioning pins 3231 penetrate through the limiting oblong holes to limit the end plate positioning fine adjustment range.

The theory of operation places electric core and busbar on module backing plate 14, the end plate is equipped with two locating holes, cup joint the locating hole of end plate to end plate locating pin 3231 of end plate positioning mechanism 3, before this, need adjust the distance position of two end plate locating pins 3231 through end plate fine setting assembly 323 in order to adapt to not unidimensional end plate, adjust the fastening frame 313 of elasticity, let positioning screw 312 can rotate, rethread rotates positioning screw 312, the end plate positioning mechanism 3 at control both ends tightens up, fasten the module, then fix a position the electric core through 6 electric core positioning mechanism 2 of adjustment both sides, be convenient for follow-up welding operation.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. A flexible square shell power battery module tab welding positioning tool is characterized in that: the battery cell positioning device comprises a positioning base assembly, a plurality of battery cell positioning mechanisms for positioning battery cells of a module and a plurality of end plate positioning mechanisms for positioning end plates of the module; the battery cell and the busbar are placed on the module backing plate of the positioning base assembly, the positioning base assembly comprises a bottom plate, two backing plate supporting frames are arranged in the middle of the bottom plate, the module backing plate is placed above a plurality of backing plate supporting plates, two end plate positioning mechanisms are respectively arranged on two axial sides of the backing plate supporting plates X, and a plurality of battery cell positioning mechanisms are respectively arranged on two axial sides of the backing plate supporting plates Y.

2. The flexible square-shell power battery module tab welding positioning tool according to claim 1, wherein: the module base plate is mounted to two parallel base plate supporting frames through base plate supporting plates, and comprises a fixed base plate and detachable base plates, wherein the detachable base plates are arranged on two sides of the fixed base plate; the bottom of two backing plate support frames still is equipped with two strengthening frames, and two strengthening frames divide into three electric core location areas with the region between two backing plate support frames, and every electric core location area both sides all correspond an electric core positioning mechanism.

3. The flexible square-shell power battery module tab welding positioning tool according to claim 2, wherein: the battery cell positioning mechanism comprises two battery cell positioning slide rails, a battery cell positioning base, a battery cell positioning mounting plate and a battery cell positioning elbow clamp which are arranged in parallel; the battery cell positioning slide rails are fixedly arranged on the bottom plate, the bottom surface of the battery cell positioning base is respectively and slidably connected to the two battery cell positioning slide rails through two sliding blocks, and the battery cell positioning mounting plate is vertically arranged on the battery cell positioning base, so that the overall cross section formed by the battery cell positioning mounting plate and the battery cell positioning base is L-shaped; the middle part of the battery cell positioning mounting plate is provided with a mounting plate adjusting bolt, and one side, close to the battery cell, of the upper eave of the battery cell positioning mounting plate is provided with a plurality of battery cell positioning blocks; the electric core positioning elbow clamp is mounted on the bottom plate and arranged between the two electric core positioning sliding rails, a push-pull rod of the electric core positioning elbow clamp corresponds to the electric core positioning bottom plate, and the push-pull rod can be in contact with the electric core positioning bottom plate but is not fixed.

4. The welding positioning tool for the tab of the flexible square-shell power battery module according to claim 3, wherein the welding positioning tool is characterized in that: the middle part of electric core positioning mounting panel is equipped with a plurality of lightening holes, be equipped with mounting panel adjusting bolt between a plurality of lightening holes, mounting panel adjusting bolt corresponds the backing plate backup pad, the quantity of electric core locating piece is 3, and the electric core locating piece of every electric core positioning mechanism all corresponds the electric core of placing on the module backing plate.

5. The flexible square-shell power battery module tab welding positioning tool according to claim 1, wherein: the end plate positioning mechanism comprises an end plate positioning plate and an end plate fixing assembly, two end plate positioning sliding rails which are parallel to each other are arranged on the end plate positioning plate, the end plate fixing assembly is matched with the end plate positioning sliding rails through sliding blocks to realize sliding of the end plate fixing assembly, a positioning screw rod is arranged in the middle of the end plate positioning plate and is mounted to the end plate positioning plate through a screw rod frame, one end of the positioning screw rod is arranged between fastening frames, and the fastening frames are used for braking the positioning screw rod; the positioning screw rod is provided with a nut seat, and the nut seat is connected with the end plate fixing assembly.

6. The flexible square-shell power battery module tab welding positioning tool according to claim 5, wherein: a transition block is further arranged between the end plate fixing assembly and the sliding block; the fastening frame is fixedly mounted on the end plate locating plate, a locating groove for placing a locating screw rod is formed in the middle of the fastening frame, and a screw rod handle for tightening the locating groove is arranged on one side of the fastening frame.

7. The flexible square-shell power battery module tab welding positioning tool of claim 6, wherein: the end plate fixing assembly comprises an adjusting plate, the adjusting plate is integrally I-shaped, four corners of the adjusting plate are respectively provided with an adjusting groove, two adjusting grooves on one side of the adjusting plate, far away from the module base plate, are respectively provided with an end plate fine adjustment assembly, two adjusting grooves on one side of the adjusting plate, close to the module base plate, are respectively provided with a locating pin fine adjustment assembly, the two end plate fine adjustment assemblies are used for adjusting the locating end plates, and the two locating pin fine adjustment assemblies are used for adjusting the locating end plate base plates.

8. The flexible square-shell power battery module tab welding positioning tool of claim 7, wherein: the end plate fine adjustment assembly comprises an end plate locating pin, a first installation block, a first adjusting bolt and a first guide column; an adjusting bolt and a guide post are installed in the adjustment tank, an installation seat is connected with an adjusting bolt thread simultaneously and is sleeved with the guide post, the movement of an installation block is realized through adjusting the adjusting bolt, an end plate locating pin is vertically installed on the surface of an installation plate, and the end plate locating pin is used for locating an end plate.

9. The flexible square-shell power battery module tab welding positioning tool of claim 7, wherein: the locating pin trimming assembly comprises a base plate locating pin, a second mounting block, a second adjusting bolt and a second guide post, the second adjusting bolt and the second guide post are mounted in an adjusting groove, the second mounting block is connected with the second adjusting bolt and sleeved with the second guide post, the second mounting block is moved through adjusting the second adjusting bolt, the second adjusting block is mounted on the upper surface of the second mounting block through two bolts, the second adjusting block is provided with two oblong holes, trimming of the second adjusting block is achieved, side walls are arranged on two sides of the upper surface of the second mounting block, an adjusting channel is formed between the two side walls, and the second adjusting block is matched with the adjusting channel to limit the second adjusting block.

10. The flexible square-shell power battery module tab welding positioning tool of claim 7, wherein: the adjusting plate top is equipped with spacing roof, spacing roof is the T type wholly, spacing roof is equipped with two spacing slotted holes corresponding with the end plate locating pin, two end plate locating pins pass spacing slotted holes, realize the spacing to end plate location fine setting scope.