Deviation rectifying and positioning mechanism applied to battery piece and series welding machine

Abstract

The utility model discloses a deviation rectifying and positioning mechanism applied to a battery piece and a series welding machine. The deviation rectifying and positioning mechanism comprises a supporting adsorption assembly. The driving positioning assembly and the two positioning adjusting assemblies are arranged on the supporting adsorption assembly, and two guide slopes are oppositely arranged on the driving positioning assembly; the positioning adjusting assembly comprises a second sliding rail. The second sliding mechanism is arranged on the second sliding rail in a sliding manner and is in contact transmission connection with the corresponding guide inclined surface; the elastic piece is arranged in the second sliding mechanism; the adjusting mechanism is arranged on the side edge of the second sliding mechanism and is in contact connection with the elastic piece; and the second pushing mechanism is arranged on the second sliding mechanism. According to the utility model, the driving positioning assembly synchronously drives the two positioning adjusting assemblies to move, so that the deviation rectifying and positioning operation on the battery piece in the X-axis and Y-axis directions is realized, and the problems that the existing deviation rectifying and positioning mechanism is relatively complex in structure and relatively high in cost are effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of deviation correction and positioning mechanisms, and in particular to a deviation correction and positioning mechanism and a string welding machine applied to battery cells. Background Art

[0002] The string welding machine is one of the important equipment in the battery cell production process. It is used to weld multiple battery cells into a string of batteries. Before welding, the battery cell transfer device is required to absorb the battery cell from the battery cell transmission line, and then move it to the welding transmission line to lay the welding ribbon and then perform welding operations with the welding ribbon. Before the battery cell transmission line absorbs the battery cell, it is necessary to correct the deviation and position the battery cell, so as to facilitate the battery cell transfer device to absorb the battery cell.

[0003] In the prior art, the correction and positioning mechanism on the battery cell transmission line generally adopts two sets of power devices to perform positioning operations on the battery cell in the X-axis and Y-axis directions. The specific working process is: the movement of the lead screw motor in the X-axis direction drives the positioning column in the X-axis direction to perform correction and positioning operations on the battery cell in the X-axis direction, and then the movement of the lead screw motor in the Y-axis direction drives the positioning column in the Y-axis direction to perform correction and positioning operations on the battery cell in the Y-axis direction, thereby realizing the correction and positioning operations of the battery cell; the correction and positioning mechanism adopting this method requires two sets of power mechanisms, the structure is relatively complex and the cost is relatively high; therefore, a correction and positioning mechanism and a string welding machine applied to battery cells are provided to solve the above problems. Utility Model Content

[0004] One of the purposes of the utility model is to provide a deviation correction and positioning mechanism and a string welding machine applied to a battery cell, so as to solve the problem that the existing deviation correction and positioning mechanism has a relatively complex structure and a high cost.

[0005] The utility model can realize a deviation correction and positioning mechanism and a string welding machine applied to a battery cell by the following technical solutions:

[0006] The utility model discloses a deviation correction and positioning mechanism for a battery cell, comprising a support adsorption component; a drive positioning component, which is arranged on the support adsorption component, and the drive positioning component performs a positioning operation on the battery cell arranged on the support adsorption component in the X-axis direction, and the drive positioning component is relatively provided with two guiding inclined surfaces; two positioning adjustment components, which are relatively arranged on both sides of the drive positioning component and are transmission-connected to the drive positioning component;

[0007] Among them, the positioning and adjusting component includes a second slide rail, which is fixedly arranged on the support and adsorption component and arranged along the Y-axis direction; a second sliding mechanism slidably arranged on the second slide rail, and the second sliding mechanism is in contact transmission connection with the corresponding guiding inclined surface; an elastic member arranged in the second sliding mechanism; an adjusting mechanism arranged on the side of the second sliding mechanism and in contact connection with the elastic member; a second pushing mechanism arranged on the second sliding mechanism.

[0008] In one implementation, the support and adsorption component includes a support frame, a mounting plate, a plurality of vertical rods and an adsorption plate arranged in sequence from bottom to top; the driving and positioning component and the two positioning and adjusting components are respectively arranged on the mounting plate; the adsorption plate is a hollow cavity and is communicated with a negative pressure generating device, and a plurality of adsorption holes are arranged through the side opposite to the battery cell.

[0009] In one implementation, the driving and positioning component includes a driving mechanism arranged on the mounting plate; a first sliding mechanism slidably arranged on the mounting plate and in transmission connection with the two positioning and adjusting components; a first pushing mechanism in transmission connection with the driving mechanism and fixedly connected with the first sliding mechanism.

[0010] In one implementation, the driving mechanism includes a fixed seat fixedly arranged on the mounting plate; a servo motor arranged on the fixed seat, which can rotate forward and backward; a lead screw with two ends respectively connected to the servo motor and the first pushing mechanism.

[0011] In one implementation, the first sliding mechanism includes a first slide rail fixedly arranged on the mounting plate and arranged along the X-axis direction; a first sliding block slidably arranged on the first slide rail and fixedly connected with the first pushing mechanism, and the two guiding inclined surfaces are oppositely arranged at both ends of the first sliding block.

[0012] In one implementation, both the first pushing mechanism and the second pushing mechanism include a support plate; a plurality of positioning column structures respectively arranged on the support plate; the positioning column structure includes a positioning column main body fixedly arranged on the support plate and a first bearing rotatably arranged on the positioning column main body.

[0013] In one implementation, the second sliding mechanism includes a second sliding block slidably arranged on the second slide rail; a second bearing rotatably arranged on the second sliding block and capable of rolling transmission connection with the guiding inclined surface.

[0014] In one implementation, a receiving groove is arranged on the second sliding block, and the elastic member is arranged in the receiving groove and in contact connection with the inner wall of the receiving groove.

[0015] In one of the embodiments, the adjusting mechanism includes a fixing plate fixedly arranged on the support and adsorption assembly and on one side of the second slide rail; an adjusting screw detachably and threadedly connected to the fixing plate and passing through the fixing plate, one end of which extends into the accommodating groove and is in contact connection with the elastic member.

[0016] A string welding machine for battery wafers of the present utility model includes a battery wafer conveying device; the battery wafer conveying device includes the deviation rectifying and positioning mechanism described in any one of the above.

[0017] The string welding machine further includes a solder tape feeding device, a fixture conveying device, a battery wafer fixture handling device, a solder tape laying device, a battery wafer and solder tape transmission device, a welding device, a fixture handling device, and an out-string device;

[0018] Among them, the battery wafer conveying device conveys the battery wafers required for battery string welding; the solder tape feeding device places a solder tape roll to provide the solder tape required for battery string welding; the battery wafer fixture handling device transports the battery wafers at the output end of the battery wafer conveying device and the tooling fixtures at the output end of the fixture conveying device to the input end of the battery wafer and solder tape transmission device; the solder tape laying device lays the solder tape on the battery wafers on the battery wafer and solder tape transmission device; the battery wafer and solder tape transmission device conveys the battery wafers, the solder tape, and the tooling fixtures pressing on the solder tape together and passes through the welding device; the welding device is arranged between the input end and the output end of the battery wafer and solder tape transmission device, and welds the battery wafers and the solder tape on the battery wafer and solder tape transmission device; the fixture handling device transports the tooling fixtures from the output end of the battery wafer and solder tape transmission device to the input end of the fixture conveying device; the fixture conveying device conveys the returned tooling fixtures from the input end of the fixture conveying device to its output end; the out-string device performs string separation processing on the battery strings obtained by welding of the welding device and outputs battery strings of a predetermined length.

[0019] Compared with the prior art, the beneficial effects of a deviation rectifying and positioning mechanism for battery wafers and a string welding machine of the present utility model are as follows:

[0020] In the present utility model, a deviation rectification and positioning mechanism for battery wafers and a string welding machine drive a first pushing mechanism through a driving mechanism, thereby realizing the positioning operation of the battery wafers in the X-axis direction; since the first sliding mechanism is fixedly connected to the first pushing mechanism and moves following the first pushing mechanism, the first sliding mechanism squeezes two positioning and adjusting components, and under the elastic restoring force of the elastic member, the two second pushing mechanisms respectively perform the deviation rectification and positioning operation of the battery wafers in the Y-axis direction, thereby simply and quickly realizing the deviation rectification and positioning operation of the battery wafers in the XY-axis directions, effectively solving the problems that the existing deviation rectification and positioning mechanism has a relatively complex structure and a high cost; through the adsorption effect of the adsorption plate on the battery wafers, it effectively prevents the battery wafers from shifting during the deviation rectification and positioning process, and to a certain extent improves the efficiency of deviation rectification and positioning;

[0021] In the present utility model, a deviation rectification and positioning mechanism for battery wafers and a string welding machine reduce one driving motor and increase an adjusting mechanism and rolling bearings; a driving motor synchronously drives the first pushing mechanism and the two second pushing mechanisms to move, thereby achieving the ability to control two actions with one power, effectively reducing the production cost and the simplicity of electrical control; at the same time, through the setting of the adjusting structure, by screwing the adjusting screw, the elastic force of the elastic member can be adjusted, so as to be able to match battery wafers of different sizes, and improve the compatibility of the deviation rectification and positioning mechanism. Brief Description of the Drawings

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required to be used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as a limitation of the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0023] Figure 1 is a three-dimensional structural schematic diagram of a deviation rectification and positioning mechanism for battery wafers according to the present utility model;

[0024] Figure 2 is Figure 1 a three-dimensional structural schematic diagram of another perspective of the deviation rectification and positioning mechanism for battery wafers according to the present utility model shown;

[0025] Figure 3 is Figure 1 an exploded structural schematic diagram of the deviation rectification and positioning mechanism for battery wafers according to the present utility model shown, including a support and adsorption assembly, a driving and positioning assembly, and a positioning and adjusting assembly;

[0026] Figure 4 is Figure 3 a structural schematic diagram of the support and adsorption assembly shown;

[0027] Figure 5 is Figure 3 the connection schematic diagram of the driving and positioning assembly and the positioning and adjusting assembly shown;

[0028] Figure 6 is Figure 5 the structural schematic diagram of the driving and positioning assembly shown;

[0029] Figure 7 is Figure 5 the partial exploded structural schematic diagram of the positioning and adjusting assembly shown.

[0030] Reference numerals in the figure: 10, deviation correction and positioning mechanism; 11, support and adsorption assembly; 111, support frame; 112, mounting plate; 113, vertical rod; 114, adsorption plate; 12, driving and positioning assembly; 121, driving mechanism; 1211, fixed seat; 1212, servo motor; 1213, lead screw; 122, first sliding mechanism; 1221, first slide rail; 1222, first sliding block; 12221, guiding inclined surface; 123, first pushing mechanism; 1231, support plate; 1232, positioning post structure; 12321, positioning post body; 12322, first bearing; 13, positioning and adjusting assembly; 131, second slide rail; 132, second sliding mechanism; 1321, second sliding block; 13211, receiving groove; 1322, second bearing; 133, adjusting mechanism; 1331, fixing plate; 1332, adjusting screw; 134, elastic member; 135, second pushing mechanism; 20, battery string. Detailed implementation manners

[0031] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and shown in the accompanying drawings here can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model claimed, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0033] Please refer to Figures 1 - 7As shown, the utility model is a deviation correction and positioning mechanism 10 applied to battery cells, which mainly includes a supporting adsorption component 11, a driving positioning component 12 and two positioning adjustment components 13; the supporting adsorption component 11 is arranged at the output end of the battery cell conveyor belt and docked with the battery cell conveyor belt, and the battery cell conveyor belt conveys the battery cell 20 to the supporting adsorption component 11 for adsorption operation; the driving positioning component 12 is arranged on the supporting adsorption component 11, and it performs X-axis positioning operation on the battery cell 20 on the supporting adsorption component 11; the two positioning adjustment components 13 are relatively arranged on both sides of the driving positioning component 12 and are transmission-connected to the driving positioning component 12, and the two cooperate to perform Y-axis positioning operation on the battery cell 20 arranged on the supporting adsorption component 11.

[0034] See also Figures 1 - 4 As shown, in this embodiment, the support adsorption component 11 includes a support frame 111, a mounting plate 112, a plurality of vertical poles 113 and an adsorption plate 114 which are arranged in sequence from bottom to top; the driving positioning component 12 and the two positioning adjustment components 13 are respectively arranged on the mounting plate 112; the adsorption plate 114 is horizontally docked with the output end of the battery cell conveyor belt, so that the battery cell conveyor belt can transfer the battery cell 20 to the adsorption plate 114. The adsorption plate 114 is a hollow cavity and is connected to the negative pressure generating device. A plurality of adsorption holes are penetrated on the side opposite to the battery cell 20, and the battery cell 20 arranged on the adsorption plate 114 is adsorbed through the plurality of adsorption holes.

[0035] See also Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, in this embodiment, the driving and positioning assembly 12 includes a driving mechanism 121, a first sliding mechanism 122 and a first pushing mechanism 123; the driving mechanism 121 is arranged on the mounting plate 112; the first sliding mechanism 122 is slidably arranged on the mounting plate 112 and is transmission-connected to the two positioning and adjustment assemblies 13, and it synchronously drives the two positioning and adjustment assemblies 13 to move, thereby performing a correction and positioning operation on the battery cell 20 arranged on the adsorption plate 114 in the Y-axis direction; the first pushing mechanism 123 is transmission-connected to the driving mechanism 121 and is fixedly connected to the first sliding mechanism 122, and the first sliding mechanism 122 guides and limits the movement of the first pushing mechanism 123, and the first pushing mechanism 123 is on the same straight line as the conveying direction of the battery cell 20, and the driving mechanism 121 drives the first pushing mechanism 123 to make a linear motion under the guidance of the first sliding mechanism 122, thereby performing a positioning operation on the battery cell 20 arranged on the adsorption plate 114 in the X-axis direction.

[0036] See also Figure 5 and Figure 6As shown, specifically, the driving mechanism 121 includes a fixed seat 1211, a servo motor 1212, and a lead screw 1213; the fixed seat 1211 is fixedly arranged on the mounting plate 112; the servo motor 1212 is arranged on the fixed seat 1211 and can rotate forward and backward. By using the servo motor 1212, the precise movement of the first sliding mechanism 122 is ensured; one end of the lead screw 1213 is in transmission connection with the servo motor 1212, and the other end is connected to the first pushing mechanism 123. The servo motor 1212 drives the lead screw 1213 to drive the first pushing mechanism 123 to move in the X-axis direction under the guiding action of the first sliding mechanism 122.

[0037] Please refer to Figure 5 and Figure 6 As shown, in this embodiment, the first sliding mechanism 122 includes a first slide rail 1221 and a first sliding block 1222; the first slide rail 1221 is fixedly arranged on the mounting plate 112 and is arranged along the X-axis direction; the first sliding block 1222 is slidably arranged on the first slide rail 1221 and is fixedly connected to the first pushing mechanism 123. The first slide rail 1221 guides the movement of the first sliding block 1222. Specifically, guiding inclined surfaces 12221 are respectively arranged on the opposite two ends of the first sliding block 1222, and the two guiding inclined surfaces 12221 are respectively in contact transmission connection with the two positioning and adjusting components 13. Through the thrusts of the two guiding inclined surfaces 12221 acting on the positioning and adjusting components 13 respectively, the two positioning and adjusting components 13 cooperate with each other to perform a positioning operation on the battery sheet 20 arranged on the adsorption plate 114 in the Y-axis direction.

[0038] Please refer to Figure 5 and Figure 6 As shown, in this embodiment, the first pushing mechanism 123 includes a support plate 1231 and a plurality of positioning post structures 1232; the support plate 1231 is fixedly arranged on the first sliding block 1222 and is in transmission connection with the lead screw 1213. The servo motor 1212 drives the support plate 1231 to move in the X-axis direction through the lead screw 1213; the plurality of positioning post structures 1232 are respectively arranged on the support plate 1231 and are in contact with the battery sheet 20, so as to drive the battery sheet 20 to perform a positioning operation in the X-axis direction. Specifically, the positioning post structure 1232 includes a positioning post main body 12321 and a first bearing 12322. The positioning post main body 12321 is fixedly arranged on the support plate 1231, and the first bearing 12322 is rotatably arranged on the positioning post main body 12321 and is in rolling contact connection with the battery sheet 20.

[0039] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 and Figure 7As shown, in this embodiment, the positioning and adjusting assembly 13 includes a second slide rail 131, a second sliding mechanism 132, an adjusting mechanism 133, an elastic member 134, and a second pushing mechanism 135. The second slide rail 131 is fixedly arranged on the mounting plate 112 and arranged along the Y-axis direction, and it is arranged on the side of the first sliding block 1222. The second sliding mechanism 132 is slidably arranged on the second slide rail 131 and can be in contact transmission connection with the guiding inclined surface 12221. The elastic member 134 is arranged in the second sliding mechanism 132. The adjusting mechanism 133 is arranged on the side of the second sliding mechanism 132 and is in contact connection with the elastic member 134. The elastic force of the elastic member 134 can be adjusted through the adjusting mechanism 133. The second pushing mechanism 135 is arranged on the second sliding mechanism 132 and moves along with the movement of the second sliding mechanism 132.

[0040] Please refer to Figure 5 and Figure 7 As shown, in this embodiment, the second sliding mechanism 132 includes a second sliding block 1321 and a second bearing 1322. The second sliding block 1321 is slidably arranged on the second slide rail 131. The second bearing 1322 is rotatably arranged on the second sliding block 1321 and can be in rolling transmission connection with the guiding inclined surface 12221. Through the thrust of the first sliding block 1222 acting on the second bearing 1322, the second sliding block 1321 is driven to move on the second slide rail 131. Specifically, a receiving groove 13211 is arranged on the second sliding block 1321, and the elastic member 134 is arranged in the receiving groove 13211 and is in contact connection with the inner wall of the receiving groove 13211.

[0041] Please refer to Figure 5 and Figure 7 As shown, in this embodiment, the adjusting mechanism 133 includes a fixing plate 1331 and an adjusting screw 1332. The fixing plate 1331 is fixedly arranged on the mounting plate 112 and is arranged on one side of the second slide rail 131. The adjusting screw 1332 is detachably threadedly connected to the fixing plate 1331 and penetrates through the fixing plate 1331. One end of it extends into the receiving groove 13211 and is in contact connection with the elastic member 134. By screwing the adjusting screw 1332 to adjust the length extending into the receiving groove 13211, the elastic force of the elastic member 134 is adjusted, and at the same time, the movement of the second sliding mechanism 132 is limited. Specifically, the elastic member 134 is a spring. The structure of the second pushing mechanism 135 is similar to that of the first pushing mechanism 123, so the specific structure is not described herein again.

[0042] A string welding machine for battery wafers of the present utility model includes a battery wafer conveying device. The battery wafer conveying device includes the deviation correction and positioning mechanism 10 of any one of the above.

[0043] The string welding machine further includes a solder tape loading device, a fixture conveying device, a cell fixture handling device, a solder tape laying device, a cell-solder tape transmission device, a welding device, a fixture handling device, and a string discharging device;

[0044] Among them, the cell conveying device conveys the cells required for battery string welding; the solder tape loading device places a solder tape roll to provide the solder tape required for battery string welding; the cell fixture handling device transports the cells at the output end of the cell conveying device and the tooling fixture at the output end of the fixture conveying device to the input end of the cell-solder tape transmission device; the solder tape laying device lays the solder tape on the cells on the cell-solder tape transmission device; the cell-solder tape transmission device conveys the cells, the solder tape, and the tooling fixture pressing on the solder tape together and passes through the welding device; the welding device is arranged between the input end and the output end of the cell-solder tape transmission device, and it welds the cells and the solder tape on the cell-solder tape transmission device; the fixture handling device transports the tooling fixture from the output end of the cell-solder tape transmission device to the input end of the fixture conveying device; the fixture conveying device conveys the returned tooling fixture from the input end of the fixture conveying device to its output end; the string discharging device performs string separation processing on the battery string obtained by welding of the welding device and outputs a battery string of a predetermined length.

[0045] It should be noted that the specific working process of a deviation correction and positioning mechanism and a string welding machine for cells according to the present invention is as follows: When the cell conveying device conveys the cell 20 to the adsorption plate 114, during the process of the cell conveying device conveying the cell 20, the adsorption plate 114 adsorbs the cell 20 arranged thereon to prevent the cell 20 from shifting on the adsorption plate 114. At the same time, the driving mechanism 121 rotates forward to drive the first pushing mechanism 122 to move forward, and the first pushing mechanism 122, the adsorption plate 114, and the cell conveying device cooperate with each other to perform positioning operation on the cell 20 in the X-axis direction; since the first sliding mechanism 123 is fixedly connected to the first pushing mechanism 122, it also moves forward synchronously with the first pushing mechanism 122, so that the first sliding mechanism 123 presses the two positioning and adjusting components 13, and under the elastic restoring force of the elastic member 134, the two second pushing mechanisms 135 respectively perform positioning and deviation correction operations on the cell 20 in the Y-axis direction, thereby realizing the positioning operation on the cell 20 arranged on the adsorption plate 114; after the positioning of the cell 20 is completed, the cell fixture handling device transports the positioned cell 20 to the cell-solder tape transmission device, and then the driving mechanism 121 rotates reversely, so that the first pushing mechanism 122 and the two second pushing mechanisms 135 return to the initial positions, and the deviation correction and positioning operations on the cell 20 are sequentially cycled.

[0046] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0047] The above-described embodiments only express several implementation manners of the present utility model. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent shall be subject to the appended claims.

Claims

1. A deviation correction and positioning mechanism applied to a battery cell, characterized in that: include: Supporting adsorption components; A driving positioning component, which is arranged on the supporting adsorption component, and the driving positioning component performs a positioning operation on the battery sheet arranged on the supporting adsorption component in the X-axis direction, and two guiding inclined surfaces are arranged relatively on the driving positioning component; Two positioning adjustment components, which are relatively arranged on two sides of the driving positioning component and are transmission-connected to the driving positioning component; Among them, the positioning and adjustment component includes a second slide rail, which is fixedly set on the supporting adsorption component and arranged along the Y-axis direction; a second sliding mechanism slidably set on the second slide rail, and the second sliding mechanism is in contact and transmission connection with the corresponding guide inclined surface; an elastic member arranged in the second sliding mechanism; an adjustment mechanism arranged on the side of the second sliding mechanism and in contact with the elastic member; and a second pushing mechanism arranged on the second sliding mechanism.

2. The deviation correction and positioning mechanism for a battery cell according to claim 1, characterized in that: The support adsorption assembly includes a support frame, a mounting plate, a plurality of vertical poles and an adsorption plate which are arranged in sequence from bottom to top; the drive positioning assembly and the two positioning adjustment assemblies are respectively arranged on the mounting plate; the adsorption plate is a hollow cavity and is connected to the negative pressure generating device, and a plurality of adsorption holes are penetrated on the side opposite to the battery cell.

3. The deviation correction and positioning mechanism for a battery cell according to claim 2, characterized in that: The driving positioning assembly includes a driving mechanism, which is arranged on the mounting plate; a first sliding mechanism slidably arranged on the mounting plate and transmission-connected to the two positioning adjustment assemblies; and a first pushing mechanism transmission-connected to the driving mechanism and fixedly connected to the first sliding mechanism.

4. The deviation correction and positioning mechanism for a battery cell according to claim 3, characterized in that: The driving mechanism comprises a fixed seat, which is fixedly arranged on the mounting plate; a servo motor arranged on the fixed seat, which can rotate forward and reverse; A screw rod with two ends respectively connected to the servo motor and the first pushing mechanism.

5. The deviation correction and positioning mechanism for a battery cell according to claim 4, characterized in that: The first sliding mechanism includes a first sliding rail, which is fixedly arranged on the mounting plate and arranged along the X-axis direction; a first sliding block slidably arranged on the first sliding rail and fixedly connected to the first pushing mechanism, and the two guiding inclined surfaces are relatively arranged at both ends of the first sliding block.

6. The deviation correction and positioning mechanism for a battery cell according to claim 3, characterized in that: The first pushing mechanism and the second pushing mechanism both include a support plate; a plurality of positioning column structures respectively arranged on the support plate; the positioning column structure includes a positioning column body, which is fixedly arranged on the support plate and a first bearing rotatably arranged on the positioning column body.

7. The deviation correction and positioning mechanism for a battery cell according to claim 1, characterized in that: The second sliding mechanism comprises a second sliding block which is slidably arranged on the second sliding rail; and a second bearing which is rotatably arranged on the second sliding block and can be connected to the guide inclined surface in a rolling transmission manner.

8. The deviation correction and positioning mechanism for a battery cell according to claim 7, characterized in that: The second sliding block is provided with a receiving groove, and the elastic member is arranged in the receiving groove and is in contact with and connected to the inner wall of the receiving groove.

9. The deviation correction and positioning mechanism for a battery cell according to claim 8, characterized in that: The adjustment mechanism includes a fixing plate, which is fixed on the supporting adsorption assembly and arranged on one side of the second slide rail; an adjusting screw which is detachably threadedly connected to the fixing plate and passes through the fixing plate, one end of which extends into the accommodating groove and contacts and connects with the elastic member.

10. A string welding machine applied to battery cells, characterized in that: It comprises a battery cell conveying device; the battery cell conveying device comprises the deviation correction and positioning mechanism according to any one of claims 1 to 9; The string welding machine also includes a welding tape feeding device, a jig conveying device, a battery cell jig handling device, a welding tape laying device, a battery cell welding tape transmission device, a welding device, a jig handling device and a stringing device; Among them, the battery cell conveying device conveys the battery cells required for battery string welding; the welding tape feeding device places the welding tape roll to provide the welding tape required for battery string welding; the battery cell jig conveying device conveys the battery cells at the output end of the battery cell conveying device and the tooling jig at the output end of the jig conveying device to the input end of the battery cell welding tape transmission device; the welding tape laying device lays the welding tape on the battery cell on the battery cell welding tape transmission device; the battery cell welding tape transmission device conveys the battery cell, welding tape and the tooling jig pressed on the welding tape together and passes The welding device; the welding device is arranged between the input end and the output end of the battery cell welding strip transmission device, and welds the battery cell and the welding strip on the battery cell welding strip transmission device; the jig transporting device transports the tooling jig from the output end of the battery cell welding strip transmission device to the input end of the jig conveying device; the jig conveying device transports the reflowed tooling jig from the input end of the jig conveying device to its output end; the string output device performs string processing on the battery string obtained by welding of the welding device, and outputs a battery string of predetermined length.

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