CN213845344U

CN213845344U - Power battery module production line

Info

Publication number: CN213845344U
Application number: CN202022792014.5U
Authority: CN
Inventors: 吴轩; 冉昌林; 孟昌; 蔡汉钢
Original assignee: Jiangsu Yifei Laser Equipment Co ltd
Current assignee: Jiangsu Yifei Laser Equipment Co ltd
Priority date: 2020-11-26
Filing date: 2020-11-26
Publication date: 2021-07-30
Anticipated expiration: 2030-11-26

Abstract

The utility model relates to a battery production technical field discloses a power battery module production line, pile up station and curb plate welding system including transfer chain and the electric core detecting system, rubber coating mechanism, the preface mechanism that changes, electric core that set gradually along the transfer chain, be in on the transfer chain electric core pile up the station with still be equipped with needle bed detecting system between the curb plate welding system. The embodiment of the utility model provides a pair of power battery module production line, this production line can realize the automation mechanized operation, and each process sets up in proper order along the transfer chain, but the human operation that significantly reduces intensity of labour, improves production efficiency, is favorable to reduction in production cost, improves the product uniformity poor.

Description

Power battery module production line

Technical Field

The utility model relates to a battery production technical field especially relates to a power battery module production line.

Background

In today where energy competition is becoming more intense, it has become a common consensus to find products that replace petroleum energy. The rapid development of the battery industry is a trend, which has a wide application in industrial production, life and other aspects, and city electric buses are quietly started. The battery cell is an important component unit of the battery, and the battery is formed by assembling the battery cell into a module and then packaging the module by a soft package.

According to different uses of the battery, the battery module can be divided into a power module and an energy storage module, and the process operation of the power module and the energy storage module is different. The process of battery module equipment is more complicated, involves electric core rubber coating, piles up multichannel processes such as equipment and welding. At present, most enterprises still do not realize an automatic operation production line, the manual operation machine is mainly used for assisting, the operation procedures are dispersed, the labor intensity is high, the production efficiency is low, the production cost is high, the product consistency is poor, and the reliability and the attractiveness of the battery are seriously influenced.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides a power battery module production line for solve or partly solve among the prior art problem that battery module equipment production technology intensity of labour is big, production efficiency is low.

The embodiment of the utility model provides a power battery module production line, pile up station and curb plate welding system including transfer chain and the electric core detecting system, rubber coating mechanism, the preface mechanism that changes, electric core that sets gradually along the transfer chain, be in on the transfer chain electric core pile up the station with still be equipped with needle bed detecting system between the curb plate welding system.

The embodiment of the utility model provides a pair of power battery module production line, this production line can realize the automation mechanized operation, and each process sets up in proper order along the transfer chain, but the human operation that significantly reduces intensity of labour, improves production efficiency, is favorable to reduction in production cost, improves the product uniformity poor.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is an overall schematic view of a battery module production line provided in an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a testing mechanism provided in an embodiment of the present invention;

fig. 3 is a schematic structural view of a transfer mechanism according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a turnover mechanism provided in an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a welding fixture provided in an embodiment of the present invention;

fig. 6 is a schematic side view of a welding fixture provided in an embodiment of the present invention;

fig. 7 is a schematic top view of a fixing unit according to an embodiment of the present invention;

fig. 8 is a schematic view of a first posture of the needle bed detection system provided in the embodiment of the present invention;

fig. 9 is a first posture side view of a needle bed detection system provided by an embodiment of the present invention;

fig. 10 is a second posture diagram of the needle bed detection system provided in the embodiment of the present invention;

FIG. 11 is a second attitude side view of a needle bed detection system provided by an embodiment of the present invention;

fig. 12 is a first posture diagram of a cell sequencing manipulator according to an embodiment of the present invention;

fig. 13 is another schematic view of a first posture of a cell sequencing manipulator according to an embodiment of the present invention;

fig. 14 is a second posture diagram of the cell sequencing manipulator according to the embodiment of the present invention;

fig. 15 is an assembly view of an energy storage module according to an embodiment of the present invention;

fig. 16 is a schematic structural diagram of a second sequence transfer station according to an embodiment of the present invention;

fig. 17 is a schematic structural diagram of an end plate feeding mechanism according to an embodiment of the present invention.

Reference numerals:

11. a battery cell loading station; 12. an end plate coding station; 13. a battery cell detection system; 14. a turnover mechanism; 15. a gluing mechanism; 16. an end plate feeding mechanism; 17. a battery cell sequence transferring manipulator; 18. transferring the conveyor line body; 19. a battery cell stacking station; 110. a needle bed detection system; 111. a side panel welding system; 112. a side plate inspection station; 113. a first busbar assembly station; 114. a first busbar welding station; 115. a busbar inspection station; 116. a second transfer station; 21. a box body feeding station; 22. a box body code pasting station; 23. a base mounting station; 24. a battery cell assembling station; 25. a polarity detection station; 26. an upper bracket mounting station; 27. a second busbar assembly station; 28. a second busbar welding station; 29. a wire harness welding station; 210. a wire harness inspection station; 211. a module detection station; 30. and (6) recovering the station.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1, an embodiment of the present invention provides a battery module production line, which includes a first conveying line and a second conveying line arranged side by side. The first conveying line and the second conveying line can be used for production and manufacturing of two battery modules. Specifically, first transfer chain can regard as the transfer chain of power battery module production line, and the transfer chain of energy storage battery module production line can be regarded as to the second transfer chain. A first order transferring station and a second order transferring station 116 are arranged between the first conveying line and the second conveying line in sequence. I.e. the conveying direction of the first conveying line and the second conveying line may coincide. The first transfer station is located before the second transfer station 116 in the conveying direction. And a battery cell detection system 13 is arranged on the wire body of the first conveying line or the second conveying line positioned in front of the first transfer station. The wire body of the first conveying line or the second conveying line behind the second sequence transferring station 116 is provided with a wire harness welding station 29 and a module detection station 211. The first transfer station is used for transferring the battery cells between the first conveying line and the second conveying line; the second transfer station 116 is used to effect transfer of modules between the first and second conveyor lines.

Although there are differences between the production technology of power battery module and energy storage battery module, there still exist some the same repeated technologies, for example, the detection to the electric core before the electric core is assembled and assembled, and the welding of pencil and module on the module detect after the electric core is assembled and formed the module. The embodiment provides to fuse the power module production line and the energy storage module production line, can only operate on one line to repeated technology, then utilizes the transfer station to realize the transfer of work piece on two lines, and then can avoid the repeated setting operation of some same technologies, can effectively reduce the area of two kinds of battery module production lines, reduces resource consumption.

Specifically, this embodiment provides a power battery module production line, pile up station and curb plate welding system including transfer chain and the electric core detecting system, rubber coating mechanism, the preface mechanism that changes, electric core that set gradually along the transfer chain, pile up at electric core on the transfer chain and still be equipped with needle bed detecting system between station and the curb plate welding system. The production technology of the power battery module on the production line is to carry out the detection of electric core first, guarantees the qualification of follow-up technology electric core, then carries out the rubber coating to electric core, then shifts the electric core after the rubber coating to pile up the station through changeing preface mechanism and carries out electric core and pile up and form the module, then welds the curb plate and accomplishes the module assembly on the module. The production line can realize automatic operation, and each process is orderly arranged along the conveying line, so that manual operation can be greatly reduced, the labor intensity is reduced, the production efficiency is improved, the production cost is reduced, and the product consistency is improved.

On the basis of the foregoing embodiment, further referring to fig. 2, the cell detection system 13 includes a testing mechanism disposed on one side of the wire body and a transferring mechanism for transferring the cells that fail to be tested; referring to fig. 3, the transfer mechanism includes a linear guide 131, a vertical driving structure 134 and a transfer clamping jaw 137, the linear guide 131 is arranged above the line body, the vertical driving structure 134 is connected to the linear guide 131, and the transfer clamping jaw 137 is connected with the vertical driving structure 134 in a vertically floating manner.

The cell detection system 13 further includes a storage mechanism for storing the cells that fail the test. The storage mechanism is provided on the path of the linear guide 131. The transferring mechanism is used for transferring the battery cells with unqualified test results to the storage mechanism after the battery cells are tested. The vertical driving structure 134 can drive the transferring clamping jaw 137 to move to the storage mechanism along the linear guide rail 131, so that the unqualified battery cell clamped by the transferring clamping jaw is transferred to the storage mechanism. The vertical driving structure 134 may be initially located above the cell testing site, and when the cell test is unqualified, the vertical driving structure 134 may drive the transfer clamping jaw 137 to clamp an unqualified cell downward, and then move upward; then the vertical driving structure 134 drives the transferring clamping jaw 137 and the battery cell to move to the storage mechanism along the linear guide rail 131, and the vertical driving structure 134 drives the transferring clamping jaw 137 to move downwards to place the unqualified battery cell at the storage mechanism.

When the vertical driving structure 134 drives the transferring clamping jaw 137 to place the unqualified battery cell downwards at the storage mechanism, the transferring clamping jaw 137 has a vertical floating space relative to the vertical driving structure 134, so that the transferring clamping jaw 137 can convey the unqualified battery cell to different heights, stacking and placing of the unqualified battery cell at the storage mechanism can be realized, and the storage buffer amount of the storage mechanism is improved. Further, the storage buffer amount of the storage mechanism can be increased by arranging the transfer clamping jaws 137 to float up and down, the precision requirement on the vertical driving structure 134 can be reduced, the vertical driving structure 134 does not need to perform multi-point positioning, for example, a simple air cylinder capable of performing two-point positioning is adopted, and the system control difficulty is favorably reduced, the electric parts are reduced, and the cost is reduced.

According to the cell testing system 13 provided by the embodiment, the transfer and storage of unqualified cells for testing can be realized by arranging the transfer mechanism and the storage mechanism, the completeness of cell testing is improved, mechanical operation can be realized, the labor cost is reduced, and the automation level is improved; and the shifting clamping jaw 137 is arranged to float up and down, so that the storage buffer amount of the storage mechanism is improved, the unqualified battery core is better transferred and stored, and the battery core test is favorably and stably carried out.

Further, the vertical driving structure 134 may be a cylinder, or may be another structure capable of vertically moving up and down, and is not limited specifically, so as to achieve the purposes of simple structure and convenient control.

Further, the storage mechanism comprises a cache conveying line; unqualified cells can be stored on the cache conveying line and conveyed to a recycling point. The transfer mechanism is arranged above the conveying line body, and the testing mechanism is arranged on one side of the conveying line body. The storage mechanism can be arranged on the other side of the conveying line body.

On the basis of the above embodiment, further, referring to fig. 3, the transfer mechanism further includes a bracket 132; the two sides of the vertical driving structure 134 are respectively provided with a linear guide rail 131, the two ends of the bracket 132 are correspondingly connected with the linear guide rails 131 on the two sides in a sliding manner, and the vertical driving structure 134 is connected to the bracket 132. The structure stability is improved, and the stable and reliable movement of the vertical driving structure is ensured.

Further, a tow chain fixing frame is arranged on the bracket 132 and used for fixing a tow chain cable in the transfer mechanism. The orderly and stable placement of the drag chain cable is realized. The vertical drive structure 134 may be connected to the fixed plate 133, and connected to the bracket 132 through the fixed plate 133.

On the basis of the above embodiment, further, at least one side of the linear guide 131 is provided with a horizontal driving structure 139. The horizontal drive structure 139 is used to provide motive force for movement of the vertical drive structure 134 along the linear guide 131. The horizontal driving structure 139 may be a cylinder capable of realizing two-point positioning, in which one stroke point is located above the battery cell testing position, and the other stroke point is located above the storage mechanism; the horizontal driving structure 139 may also be any other structure capable of providing horizontal linear movement, and is not limited in particular.

On the basis of the above embodiment, further, referring to fig. 3, a plurality of transfer jaws 137 are connected side by side to the vertical driving structure 134. Can realize the clamp simultaneously of a plurality of electric cores and get the year of carrying, raise the efficiency.

In addition to the above embodiment, further, referring to fig. 3, the vertical driving structure 134 is connected to a hanging plate 136, and the transfer jaw 137 is connected to the hanging plate 136 in a floating manner up and down through the linear bearing 135. Specifically, the linear bearing 135 includes an outer sleeve and an inner shaft that are slidable in the axial direction with respect to each other, and the outer sleeve may be fixed to the hitch plate 136; the inner shaft penetrates through the outer sleeve, the bottom of the inner shaft is fixedly connected with the transferring clamping jaw 137 and can move up and down relative to the outer sleeve together with the transferring clamping jaw 137; the top of the inner shaft penetrates through the outer sleeve and is connected with a limiting piece so as to prevent the inner shaft from falling off from the outer sleeve and play a role in limiting. Further, the transfer jaw 137 may also be directly connected to the hoisting plate 136 through an elastic member; so as to realize the up-and-down floating of the transferring clamping jaw. Or the transferring clamping jaw 137 may be connected to the hoisting plate 136 through a vertically arranged linear moving structure, so as to realize the up-and-down floating of the transferring clamping jaw 137. The linear moving structure can be a matched groove and bump structure or a guide rail structure and the like. The up-down floating structure of the transfer jaw 137 is not particularly limited.

On the basis of the above embodiment, further, with reference to fig. 2, the testing mechanism includes at least one testing unit arranged side by side; the test unit comprises a code reader 1311, a horizontal guide frame 1314 and a vertical guide frame 1316, wherein the code reader 1311 is horizontally adjustably fixed on the horizontal guide frame 1314, and the horizontal guide frame 1314 is vertically adjustably fixed on the vertical guide frame 1316. The test unit is used for testing the conveyed battery cell at the side edge of the battery cell conveying line and judging whether the battery cell is a qualified battery cell. Here, the determination cases of the failed cell include: unqualified cells such as cells with unqualified test performance, external appearance structures and the like or cells with the models not matched with the cells required by the cell conveying line. And arranging a plurality of test units for testing a plurality of battery cores simultaneously.

The code reader 1311 can read the identification code on the battery cell, and identify and judge whether the battery cell is a battery cell required by the battery cell conveying line; and if the model and the like do not meet the requirements, starting a transfer mechanism to transfer the battery cell. So as to avoid the misplacement of the battery cell on the battery cell conveying line. The code reader 1311 can be horizontally adjusted along the horizontal guide frame 1314, and can be vertically adjusted by adjusting the position of the horizontal guide frame 1314 along the vertical guide frame 1316, so that the code reader is high in flexibility and applicability.

On the basis of the above embodiment, further, the code reader 1311 is fixed to the horizontal guide 1314 by a first clamping block 1313; horizontal guide frame 1314 is secured to vertical guide frame 1316 by second clamp block 1315. The clamping block and the guide frame are of a detachable connection structure, the position of the clamping block can be flexibly adjusted to adjust the position of the code reader, and the clamping block and the guide frame are fixed through static friction. Preferably, horizontal guide 1314 and vertical guide 1316, respectively, are cylindrical.

Referring to fig. 3, the first clamping block 1313 is provided with a through hole penetrating therethrough for passing through the horizontal guide 1314, and the first clamping block 1313 is divided into two parts separated at one side of the through hole with a bolt hole provided therebetween. After the horizontal guide frame 1314 passes through the through hole of the first clamping block 1313, the two parts can be screwed down by bolts to fix the position between the first clamping block 1313 and the horizontal guide frame 1314.

The second clamping block 1315 is provided with two through holes penetrating through the horizontal guide frame 1314 and the vertical guide frame 1316, one side of each through hole is formed with two disconnected parts, and a bolt hole is formed between the two parts. The first clamping block 1313 and the second clamping block 1315 are ingenious in design, form a fixing structure similar to a hoop, can facilitate connection and position adjustment of the horizontal guide frame 1314 and the vertical guide frame 1316, and are high in flexibility.

Further, a fixing member 1312 is connected to the code reader 1311, and the code reader 1311 is connected to the first clamping block 1313 through the fixing member 1312. The code reader 1311 may be arranged obliquely to enable the identification code on the battery cell to be read smoothly, and the specific inclination angle is not limited.

On the basis of the above embodiment, further, the testing unit further includes a probe 1317, a horizontal pushing structure 1320, and a probe mounting rack 1321, the probe 1317 is connected to the horizontal pushing structure 1320, and the horizontal pushing structure 1320 is mounted on the probe mounting rack 1321. As the cell is transported to the probe 1317, the horizontal pushing structure 1320 pushes the probe 1317 towards the cell; the probe 1317 is used for testing the battery cell by contacting with an electrode of the battery cell, and can test whether the performance of the battery cell is in a problem.

Based on the above embodiment, further referring to fig. 2, the vertical guide rack 1316 is disposed at the side of the probe mounting rack 1321, and the code reader 1311 is disposed above the horizontal pushing structure 1320. That is, the code reader 1311 and the probes 1317 are integrated, so that the code reading test of the code reader 1311 and the test of the probes 1317 can be performed simultaneously. Specifically, when a plurality of test units are arranged, a plurality of horizontal pushing structures 1320 may be mounted on one probe mounting rack 1321, and a vertical guide frame 1316 is arranged on one side of each horizontal pushing structure 1320, so that one code reader 1311 is correspondingly arranged at each horizontal pushing structure 1320, and the test of a plurality of battery cells can be completed simultaneously. Wherein the number of test units is the same as the number of transfer jaws 137; preferably, two or other ones are used, and the two or other ones can be flexibly set according to needs, and are not particularly limited.

Further, the horizontal pushing structure 1320 may also be a cylinder, or may also be another horizontal moving structure, which is not limited specifically. The probes 1317 are attached to the probe mount 1318, and the probe mount 1318 is attached to the probe mount adapter plate 1319 and to the horizontal pushing structure 1320 through the probe mount adapter plate 1319. The probe mount 1318 is an insulating structure. And the up-down position between the probe seat 1318 and the probe seat adapter plate 1319 is adjustable. Elongated mounting holes may be provided in the probe mount 1318 in the vertical direction or a plurality of probe mount mounting sites may be provided in the probe mount adapter plate 1319 in the vertical direction. A plurality of probe 1317 mounting positions are arranged on the probe seat 1318 along the horizontal direction; the mounting position of the probe 1317 can be adjusted as desired.

Further, referring to fig. 3, the transfer jaw 137 may be a jaw cylinder having two opposing jaw bodies. The inner wall of the claw body is connected with a flexible pad 138; avoid causing the damage and playing insulating effect to electric core. The flexible pads 138 and the probe mount 1318 may each be a polyurethane material. The linear guide 131 may be supported and fixed by the pillar 1310.

The battery cell detection system 13 further includes a turning mechanism 14 for adjusting the position of the battery cell placed in reverse during the test, and the testing mechanism is disposed in front of the turning mechanism 14. Referring to fig. 4, the turnover mechanism 14 includes a spatial displacement structure, a swing structure 142 and a turnover clamping jaw 141, the spatial displacement structure is arranged on one side of the battery cell conveying line, the swing structure 142 is connected to the spatial displacement structure, and the turnover clamping jaw 141 is connected to the swing structure 142.

The turnover mechanism 14 turns over the electric core placed reversely in the test at one side of the electric core conveying line, so that the electric core is adjusted to be correctly placed in a posture, and the situation of mistaken placement of the electric core placed reversely is corrected. The swing structure 142 is a structure capable of providing a swing motion, and may be, for example, a swing cylinder, a swing table, or the like. When judging that the battery core is put reversely, the space displacement structure drives the swing structure 142 and the turnover clamping jaw 141 to move to the place of the reversely put battery core, the battery core is clamped through the turnover clamping jaw 141, and then the battery core can be adjusted to the correct posture by turning over the battery core for 180 degrees under the driving of the swing structure 142. And then the battery cell is placed back to the battery cell conveying line by using the space displacement structure.

On the basis of above-mentioned embodiment, further, the spatial displacement structure includes vertical displacement structure and the horizontal displacement structure of perpendicular to electric core transfer chain direction of delivery, and vertical displacement structure connects in the horizontal displacement structure, and swing structure 142 connects in the vertical displacement structure.

Further, the horizontal displacement structure comprises a horizontal guide rail 147 and a horizontal driving structure 148, the horizontal guide rail 147 is movably connected with a fixed frame 145, and the horizontal driving structure 148 is connected with the fixed frame 145; the horizontal driving structure 148 drives the fixed frame 145 to move along the horizontal guide rail 147. The vertical displacement structure comprises a vertical guide rail 144 and a vertical driving structure 146, the vertical guide rail 144 is mounted on the fixed frame 145, the vertical guide rail 144 is movably connected with a mounting plate 143, the vertical driving structure 146 is connected with the mounting plate 143, and the swinging structure 142 is connected with the mounting plate 143. The vertical drive structure 146 drives the mounting plate 143 along the vertical guide rails 144.

On the basis of the above embodiment, further, a buffering and limiting structure 149 is arranged below the vertical displacement structure. The buffer limiting structure 149 may be an elastic member. Furthermore, at least one end of the horizontal displacement structure is provided with a limiting part. For limiting the moving position of the fixing frame 145 along the horizontal guide rail 147. Specifically, referring to fig. 4, the limiting member may be a stopper 1410 fixedly disposed at an end of the horizontal guide 147; the stopper 1410 serves to limit the movement of the fixing frame 145 and prevent the fixing frame from coming off.

Further, a plurality of swing structures 142 and a plurality of reversing jaws 141 are provided side by side in the conveying direction of the wire body. Referring to fig. 4, a plurality of swing structures 142 may be connected side by side on the mounting plate 143, and one flipping jaw 141 is connected to each swing structure 142. And each clamping jaw correspondingly clamps one battery cell. The overturning adjustment of a plurality of battery cores can be realized simultaneously, and the efficiency is improved.

On the basis of the above embodiment, further, the first sequencing station includes a cell sequencing manipulator 17; the cell sequencing manipulator 17 may be disposed between the first conveyor line and the second conveyor line, and is configured to implement transfer of a cell between the first conveyor line and the second conveyor line. A glue coating mechanism 15 is arranged on the side edge of the first conveying line at the first sequence station; an end plate feeding mechanism 16 is further arranged, and the end plate feeding mechanism 16 is located in the displacement range of the gluing mechanism 15. A sequencing conveying line body 18 is also arranged on the side edge of the conveying line; the sequencing conveyor line body 18 is located within the displacement range of the cell sequencing manipulator 17, and the sequencing conveyor line body 18 extends to the cell stacking station. The end plate feeding mechanism 16 is also located within the displacement range of the cell sequencing manipulator 17. The cell sequencing manipulator 17 and the sequencing conveyor line body 18 form a sequencing mechanism.

The glue application mechanism 15 may include a displacement drive structure and a glue application head connected to the displacement drive structure. And the end plates are used for gluing the battery cores on the first conveying line and the end plate conveyed by the end plate feeding mechanism 16. The first conveying line can be used for producing the power battery module. A plurality of electric cores can be sequentially stacked and mutually pasted and fixed by gluing on the electric cores. Then, the end plates are stuck and fixed at two ends of the stacked battery cores; then the curb plate is welded respectively in the both sides of piling up a plurality of electric cores, can form fixed firm battery module. This power battery module formation technology compares traditional utilization ribbon and bindes electric core fixing technology and sets up the technology that the base fixed electric core, both can reduce the module and form the degree of difficulty, is favorable to reducing the complexity of structure and is convenient for automated production, and the volume that occupies of the module that still can significantly reduce, the application of the battery of being convenient for.

The end plate feeding mechanism 16 may be a conveyor belt structure, and is configured to convey the end plates to the gluing mechanism 15 and the cell sequencing manipulator 17 within a displacement range. Be convenient for carry out the rubber coating and be convenient for electric core to change preface manipulator 17 and shift the end plate to the end plate. The order transferring conveyor line body 18 may be an independent conveyor line disposed at a side of the first conveyor line, and is configured to receive and convey the glued battery cell and the end plate transferred by the battery cell order transferring manipulator 17.

A battery cell stacking station 19 is arranged on the first conveying line behind the sequence transferring mechanism and used for stacking the battery cells subjected to gluing and the end plates; the end plates are positioned at two ends of the plurality of stacked cells. The first transport line is disconnectable between the sequencing mechanism and the next following station, i.e. the cell stacking station 19. The cells are placed on the cell tooling plate at and before the sequencing mechanism; and the cells stacked at the cell stacking station 19 and thereafter are placed on the module tooling plate for subsequent side plate welding. The sequencing conveyor line body 18 extends to a cell stacking station 19. The cells and the end plates on the sequencing conveyor line body 18 can be moved to the cell stacking station 19 to be stacked manually or by a manipulator.

The sequence transferring mechanism is arranged through the cell sequence transferring mechanical arm 17 and the sequence transferring conveying line body 18, the adjustment of a workpiece between the cell tooling plate and the module tooling plate can be flexibly realized, the automatic operation can be realized, and the smooth and efficient operation of a production process is facilitated. And the first conveying line is cut off to form two sections of line bodies, so that the arrangement of the conveying line can be facilitated, and the flexibility is improved.

Specifically, referring to fig. 17, the end plate feeding mechanism 16 includes an end plate blanking structure, an end plate fixing structure, and a conveying structure connected therebetween; an end plate transferring structure is also arranged at the end plate fixing structure; the end plate blanking structure is used for blanking the stacked end plates one by one from the bottom onto the conveying structure; the end plate fixing structure is used for fixing and positioning the end plate so as to facilitate the gluing operation; the end plate transfer structure is used for transferring the end plate which is moved to the end close to one end of the end plate fixing structure on the conveying structure to the end plate fixing structure.

The end plate blanking structure comprises a containing cavity for stacking the end plates and an unstacking structure 165 arranged at the bottom of the containing cavity and used for enabling the end plates to fall one by one. The accommodating chamber includes a plurality of chamber walls 161 independently arranged in the circumferential direction; the chamber wall 161 is connected to a moving structure for effecting positional adjustment of the chamber wall 161. Specifically, the cavity walls 161 may be L-shaped, and four cavity walls 161 are distributed at four corners of the end plate to form an end plate placement cavity.

The moving structure specifically includes a vertical guide bar 162, a first horizontal guide bar 163, and a second horizontal guide bar 164; the three guide rods are arranged along three mutually perpendicular directions to form three-dimensional movement. The vertical guide bar 162 is fixedly arranged; may be fixed to the conveying structure. The first horizontal guide bar 163 is connected to the vertical guide bar 162 by a clamping block along the vertical guide bar 162 with an adjustable position, and the second horizontal guide bar 164 is connected to the first horizontal guide bar 163 by a clamping block along the first horizontal guide bar 163 with an adjustable position. Therefore, the position of the cavity wall 161 along the direction of the second horizontal guide rod 164 can be adjusted by adjusting the connecting part of the second horizontal guide rod 164 and the corresponding clamping block. The position of the cavity wall 161 in the direction of the first horizontal guide bar 163 is adjusted by adjusting the connecting portion between the first horizontal guide bar 163 and the clamp block between the first horizontal guide bar 163 and the second horizontal guide bar 164, and the first horizontal guide bar 163. The position of the chamber wall 161 in the vertical direction is adjusted by adjusting the connecting portion between the clamping block between the first horizontal guide bar 163 and the vertical guide bar 162. So that the moving structure can realize the three-dimensional position adjustment of the cavity wall 161; and the structure is simple, the operation is convenient, and the operation can be realized without electric parts. The size of the accommodating cavity formed by enclosing the cavity wall 161 can be flexibly adjusted, so that the applicability and the flexibility are improved conveniently.

The transport structure may be a transport line 166. The one end that transport structure connects end plate blanking structure is less than the one end of connecting end plate fixed knot structure for transport structure has the tilt up section along direction of delivery, thereby can reduce end plate blanking structure's the height that sets up, and the piling up of the end plate of being convenient for is placed. Further, one end of the conveying structure connected with the end plate fixing structure is provided with an induction switch 167; the inductive switch 167 is used for detecting the in-place condition of the end plate and controlling the operation of the end plate transfer structure according to the detection result. The inductive switch 167 may be a photoelectric switch.

The end plate transfer structure includes a displacement structure 168 connected between the end of the transport structure and the end plate fixed structure and a robot assembly 169 connected to the displacement structure 168. The robot assembly 169 may be a jaw structure. When the inductive switch 167 detects that the end part of the conveying structure has the end plate, the end plate transfer structure is controlled to operate. Wherein the displacement mechanism 168 moves to move the robot assembly 169 above the end plate, then the robot assembly 169 moves down to grasp the end plate and then rises, then the displacement mechanism 168 moves the robot assembly 169 above the end plate fixture, and then the robot assembly 169 descends to place the end plate on the end fixture.

The end fixing structure comprises a fixing support 1610, and an end plate fixing slot is arranged on the fixing support 1610. Specifically, the fixed support 1610 is provided with stoppers at corresponding positions on four sides of the end plate; the four stoppers play a role in limiting and fixing the four sides of the end plate. That is, the end plates have stoppers at opposite sides in the length direction thereof, and also have stoppers at opposite sides in the width direction thereof.

Specifically, at least one of the stop blocks at two opposite sides along the length direction of the end plate is set to be a movable structure; at least one of the stoppers on the opposite sides in the width direction of the end plate is a movable structure. I.e. the distance between the stops in both directions is adjustable. Initially, the position of adjustable dog for the space between four dogs is greater than the size of end plate, is convenient for place of end plate. After the end is placed between the four stops, moving the stops in one direction, and removing the abutment force of the stops against the end plate in that direction (i.e., the stops remain in place, but do not apply pressure to the end plate) when the end plate is moved into position in that direction (i.e., cannot be moved); the stop in the other direction is then moved until the end plate is fixed in place in both directions. The end plate fixing structure and the fixing operation thereof can better realize the fixation of the end plate and facilitate the subsequent operation.

On the basis of the above embodiment, further, a side plate welding system 111 is provided on the first conveying line between the first transfer station and the second transfer station 116.

The side plate welding system 111 comprises a welding and fixing tool; the welding system is provided with a welding fixing tool for fixing a workpiece in the welding process, so that the workpiece is accurately positioned. Referring to fig. 5, the welding and fixing tool comprises a fixing unit, the fixing unit comprises a mounting plate 1113, a pressing plate 1114 and a pushing structure 1115, the mounting plate 1113 is hung on the bracket assembly, the mounting plate 1113 is connected with the two pressing plates 1114 which are arranged oppositely in a sliding manner along a first direction, the pressing plate 1114 is connected with the pushing structure 1115, and the pressing plate 1114 is provided with a positioning groove 1118 matched with the position of a welding seam; the mounting plate 1113 may be suspended above the welding station by a carriage assembly. When a workpiece to be welded, such as a battery module, moves to a welding station, the two pressing plates 1114 on the mounting plate 1113 can be pushed and pressed at the positions of the weld joints on the two sides of the workpiece by the pushing structures 1115, and the positioning grooves 1118 on the pressing plates 1114 are arranged corresponding to the positions of the weld joints. That is, the weld position is located in the positioning groove 1118, and the positioning groove 1118 is a through hole formed in the pressure plate 1114, so that the welding head can penetrate through the positioning groove 1118 to weld the weld position. The pressure plate 1114 is pressed around the position of the welding seam, so that the welding of the workpiece can be better positioned.

And clamp plate 1114 and mounting plate 1113 are along first direction sliding connection for the interval between two clamp plates 1114 can be adjusted in a flexible way, can be convenient for placing of work piece and be applicable to the work piece of different sizes. The welding system also includes a welding device; the welding apparatus is used to perform a welding operation. The side of welded fastening frock is located to welding equipment, and welding equipment includes displacement drive structure and welding head, and welding head connects in displacement drive structure. The displacement driving structure is used for driving the welding head to move so as to carry out welding operation on the welding position. The fixing unit of the welding fixing tool is required to be located within the displacement range of the displacement driving structure. The displacement drive structure may be a six-axis robot.

The curb plate welding system 111 that this embodiment provided, it is used for carrying out fixed position to the work piece to set up the welded fastening frock, specifically set up clamp plate 1114 and constant head tank 1118 and be used for the pertinence to compress tightly fixedly the welding seam position of work piece, press through clamp plate 1114 and establish around the welding seam position, existing being favorable to injecing the welding seam position, improve welding efficiency and accuracy, and realization work piece welded fixed position that can be better, be favorable to improving the positional accuracy of work piece welding position, reduce welding error.

Further, this welded fastening frock can use with the cooperation of work piece frock board. The workpiece can be placed on the tooling plate, and meanwhile, the welding and fixing tooling is used for fixing and positioning.

On the basis of the above embodiment, further referring to fig. 5 and 6, two sets of opposite fixing units are spaced on the bracket assembly. That is, the bracket assembly is connected with two sets of fixing units, and the pressing plates 1114 of the two sets of fixing units are arranged oppositely. The two groups of fixing units can clamp and fix the workpiece at two ends of the workpiece, so that the positioning accuracy is improved. And the both ends of battery module are connected with the end plate respectively, and the both sides of module all need the welding curb plate, and every curb plate all needs the welding in both ends and end plate department of meeting. I.e. there are four welding positions on both sides of the module. Two sets of fixing units are arranged, namely four pressing plates can be pressed and positioned at four welding positions at the same time.

On the basis of the above embodiment, further, referring to fig. 5, the fixing unit is connected with the bracket assembly in a position adjustable manner along the second direction. I.e., the mounting plate 1113, is adapted for positionally adjustable connection with the carriage assembly in the second direction. The second direction may be a direction perpendicular to the first direction. The fixing unit is position-adjustable in the second direction, and the pressing plate 1114 is position-adjustable in the first direction with respect to the mounting plate 1113. Therefore, the pressing plate 1114 can be adjusted in two directions relative to the workpiece, so that the tool can adapt to more workpieces with different sizes, and the applicability and flexibility of the tool are improved.

Further, the fixing unit and the bracket assembly can be connected in a sliding mode along the second direction; the sliding connection of the two can be realized, for example, by a rail runner structure. And the bracket component is connected with a driving structure for driving the fixing unit to move along the second direction. The driving structure may be a sliding table 1119, a cylinder 11110, a lead screw nut, etc. to provide a linear movement, which is not limited specifically.

On the basis of the above embodiment, further, the bracket assembly is provided with a limiting assembly along the moving path of the fixing unit. The limiting assembly is used for limiting the moving position of the fixing unit. The limiting assembly can be preset according to actually welded workpieces, so that the fixing unit can accurately stop at the position of the preset limiting assembly, and the fixing unit can be accurately positioned. Referring to fig. 5, the bracket assembly includes two support frames 1111 disposed opposite to each other and a connection plate 1112 having two ends respectively connected to the two support frames 1111, and the fixing unit is connected to the connection plate 1112. The end of the connecting plate 1112 is adjustably connected to the corresponding supporting bracket 1111 along the first direction.

The first conveying line can be arranged on one side of the support frame 1111 in the first direction, so that the connecting plate 1112 and the fixing unit can be initially moved to the side edge of the first conveying line along the support frame 1111, and after the workpiece is placed in place at the welding station, the connecting plate 1112 and the fixing unit are moved to the workpiece. The fixed tool can be prevented from interfering the welding station when not needed. Further, the first direction may be a width direction of the workpiece; the second direction may be a length direction of the workpiece.

In addition to the above embodiments, referring to fig. 5, the mounting plate 1113 has a slot 11111 formed between the two pressing plates 1114 and penetrating through the bottom edge of the mounting plate 1113. Preferably, the width of the slot 11111 in the first direction may be greater than the width of the workpiece. The end part of the workpiece can penetrate out of the mounting plate 1113 from the notch 11111, so that the tool can adapt to a long workpiece and a workpiece with a welding seam position closer to the middle part.

On the basis of the above embodiment, further, the inner side surface of the pressing plate 1114 is connected with the pressing block 1116 at least one side of the positioning groove 1118; set up briquetting 1116, briquetting 1116 can the butt in the surface of work piece, supports tight work piece when being favorable to the welding, realizes accurate location. The pressing block 1116 can be arranged on one side of the positioning groove 1118 on the inner side surface of the pressing plate 1114, and the pressing blocks 1116 can be arranged on both sides of the positioning groove 1118, which is not limited specifically. The inner side of the pressure plate 1114 is the side that is intended to contact the workpiece, i.e., the side opposite the two pressure plates 1114 on a mounting plate 1113.

Further, referring to fig. 6, a side of the pressing block 1116 away from the pressing plate 1114 extends to a corresponding position inside the positioning groove 1118. That is, referring to fig. 6, the side of the pressing block 1116 away from the pressing plate 1114 shields a part of the space of the positioning groove 1118, so that the space of the positioning groove 1118 is further defined under the shielding of the pressing block 1116. Can set up the briquetting 1116 and keep away from one side of clamp plate 1114 and press close to the welding seam position to when clamp plate 1114 compresses tightly the work piece, briquetting 1116 presses close to the welding seam position and supports and press on the work piece, is favorable to improving welding position's accuracy. The width of the positioning groove 1118 may be wider than the width of the weld. So that the welding head can be easily inserted into the wider positioning groove 1118 and accurately welded at the limit of the pressing block 1116.

The briquetting 1116 sets up along the length direction of constant head tank 1118 and the width that briquetting 1116 and clamp plate 1114 are connected one side is less than or equal to the width that briquetting 1116 keeps away from clamp plate 1114 one side. Referring to fig. 7, the width is the width of the pressing block 1116 in the second direction. The width that sets up briquetting 1116 and keep away from clamp plate 1114 one side is great not only is favorable to pressing close to the welding seam and improves the welding precision, still can increase the area with the work piece contact, realizes stable compressing tightly. The width of the side where the pressing block 1116 and the pressing plate 1114 are connected is set to be smaller, so that smooth insertion of the welding head is facilitated. Preferably, the side of the pressing block 1116 connected to the pressing plate 1114 is located at the side of the positioning groove 1118. That is, the side does not extend into the positioning groove 1118 and does not shield the positioning groove 1118, which facilitates the insertion of the welding head. Further, the compact 1116 may be a red copper compact.

On the basis of the above embodiment, further, a protective cover 1117 is connected to the outer side surface of the pressing plate 1114 at the periphery of the positioning groove 1118. The protection cover 1117 is located at the periphery of the positioning groove 1118 on the outer side surface of the pressure plate 1114 and used for protection during welding and improving safety performance.

On the basis of the above embodiment, further, a needle bed detection system 110 is also provided on the first conveying line after the first transfer station. The needle bed detection system 110 is provided after the cell stacking station 19 and before the side plate welding system 111. The module is used for detecting the stacked module before welding the side plates so as to ensure the qualification rate of products and avoid resource waste.

The needle bed detection system 110 comprises a needle bed mounting rack 1101 and a needle bed assembly, wherein the needle bed mounting rack 1101 is fixed above the first conveying line, the needle bed assembly is connected to the needle bed mounting rack 1101, and the needle bed assembly comprises a plurality of probes 11010; set up the detection station promptly and be used for detecting the gesture of placing of electric core in battery production process to judge whether the range of electric core is correct in the module, ensure that electric core is in the correct range gesture in the subsequent handling.

In the needle bed detection system 110 provided in this embodiment, the needle bed mounting rack 1101 and the needle bed assembly are arranged at the detection station, and when the battery cell or the module to be detected is conveyed to the detection station, the probe 11010 is in contact with the pole of the battery cell to detect and judge the placement directions of the positive and negative electrodes of the battery cell, so as to detect the arrangement posture of the battery cell; compared with manual detection in the prior art, the needle bed component is arranged, so that the detection accuracy and detection efficiency are improved, the needle bed component is suitable for long-time work, and errors are not easy to occur.

Further, the arrangement distribution of the probes 11010 on the needle bed assembly corresponds to the discharge distribution of the battery cells in the module to be tested. So that each probe 11010 is inserted into a corresponding one of the poles at the time of detection. The number of probes 11010 corresponds with the number of electric cores in the module that awaits measuring, and every electric core corresponds there are two probes 11010. This needle bed detection mechanism is particularly useful for detecting square electricity core module. Two utmost point posts of square electric core are located same terminal surface to the utmost point post of a plurality of electric core can be located same side in the square electric core module. During detection, the pole cylinder in the module faces upwards, and the probe 11010 of the needle bed assembly can be inserted into the pole from the upper side for detection.

Two sides of the needle bed assembly are respectively connected to the needle bed mounting rack 1101 through a crank slider structure, so that the needle bed assembly can extend forwards and the probe 11010 faces downwards, as shown in fig. 8; and retracted rearward with the probe 11010 facing the rear side as shown in fig. 10. The slider-crank structure can realize the rotation and move and can realize the linear telescopic movement. The needle bed component can be driven to stretch and rotate by utilizing the crank slider structure. The needle bed assembly is extended forwards and the probe is downward, namely the state of the needle bed assembly is detected, namely the first posture shown in fig. 8 and 9. After the detection is completed, the needle bed assembly can be retracted to the rear side while rotating the needle bed assembly so that the probe rotates from downward to backward, as shown in the second posture of fig. 10 and 11, that is, the retracted state of the needle bed assembly without detection.

Referring to fig. 8, the crank-slider structure includes a connecting rod 1103 and a slider 1105, one end of the connecting rod 1103 is connected to the driving structure 1102, the other end is rotatably connected to the needle bed assembly, the slider 1105 is slidably connected to the needle bed mounting rack 1101 along the front-back direction, and the connecting portion of the slider 1105 is rotatably connected to the needle bed assembly and is spaced apart from the other end of the connecting rod 1103.

One end of the link 1103 is fixedly connected to the driving structure 1102, and swings under the driving of the driving structure 1102. The other end of the connecting rod 1103 is rotatably connected to the needle bed assembly, and may be a pin connection structure, a hinge connection structure, or a rotary connection via a bearing, and the like, which is not limited specifically. A guide 1104 may be provided in the needle bed mounting 1101 in the front-rear direction, and a slider 1105 may be provided to be slidably connected to the guide 1104. The slider 1105 can also be connected with the needle bed assembly by a pin, a hinge, a bearing, or the like, without limitation. The connection part of the slider 1105 and the needle bed assembly is arranged at an interval with the connection part of the connecting rod 1103 and the needle bed assembly; the two connecting parts can be positioned at the two sides of the needle bed component.

The driving structure 1102 may be a rotary cylinder, a swing table, a gear structure, etc. for providing a rotational movement, and is not limited in particular. Under the drive of the driving structure 1102, the link 1103 rotates to drive the needle bed assembly to rotate and stretch, and the needle bed assembly can limit the stretching direction through the connecting slider 1105, thereby realizing the switching of the needle bed assembly between two states.

Further, the specific setting of connecting rod 1103 and slider 1105 in the crank block structure provided by this embodiment is the better structure that can realize that the needle bed assembly switches between two states, and it is the same to other structures that utilize the principle of crank block to realize that the needle bed assembly switches between two states the utility model discloses a protection within range, here is not listed one by one.

Further, specifically shown in fig. 8 to 11 is the specific connection of the crank block structure on one side of the needle bed assembly; namely, the left side of the needle bed assembly in fig. 8 and 10 is shown when the crank block structure is connected in place, while the crank block structure on the right side of the needle bed assembly is not connected with the needle bed assembly, and the right side is only used for showing the specific component composition of the crank block structure and does not show the specific connection structure, as shown in fig. 9 and 11. The specific connection mode of the crank-slider structures on the left side and the right side of the needle bed assembly is the same, namely as shown in the left side of figures 8 and 10.

Further, the front side, the rear side, and the left and right sides described in the embodiments are described with reference to the orientations shown in the drawings, and for convenience of understanding the specific structure of the needle bed detection mechanism, the orientation of the needle bed detection mechanism in actual use is not limited.

In addition to the above-described embodiments, the needle bed mounting rack 1101 is connected to limit structures 11011 at both ends of the sliding path of the slider 1105, respectively. The limiting structures 11011 at the two ends are used for limiting and fixing the needle bed assembly in two states respectively, and accuracy is improved. The limiting structure comprises a buffering limiting part and/or a fixing limiting part. The buffering limiting member is a limiting member formed by buffering, such as a hydraulic buffer, an elastic member, and the like. The fixed limiting part is a hard limiting part.

The needle bed assembly comprises a connecting plate 1106, and a probe 11010 is fixed on the connecting plate 1106; the needle bed assembly further comprises a fixing plate 1107, the fixing plate 1107 is arranged on the side of the connecting plate 1106 opposite to the probe 11010, the connecting plate 1106 is connected with the fixing plate 1107 in an up-and-down floating manner, and the fixing plate 1107 is connected with the needle bed mounting rack 1101. The fixed plate 1107 is used in connection with a crank block arrangement. The connecting rod 1103 and the slider 1105 in the slider-crank structure can be connected to the fixing plate 1107 to move the needle holder assembly. The connecting plate 1106 can float up and down relative to the fixing plate 1107, and specifically the connecting plate 1106 can be connected to the fixing plate 1107 through a linear bearing 1108, and can float up and down through the linear bearing 1108. Therefore, the probe 11010 on the connecting plate 1106 has an up-and-down moving space, and can adapt to electric cores with different heights, and the applicability and the flexibility of the detection mechanism are improved.

On the basis of the above embodiment, further, referring to fig. 8, the fixing plate 1107 is mounted with a pushing structure 1109 arranged along the vertical direction, and the pushing structure 1109 is connected to the connecting plate 1106; the pushing structure 1109 serves to control the up and down movement of the driving connection plate 1106 so that a preset interval between the connection plate 1106 and the fixing plate 1107 can be set. The pushing structure 1109 may be a structure capable of providing a linear movement, such as a cylinder, and is not particularly limited.

On the basis of the above embodiment, further, the needle bed mounting rack 1101 is movably connected to the support at the inspection station in the vertical direction. A vertical displacement structure can be arranged on the bracket and connected with the needle bed mounting rack 1101, so that the up-and-down movement of the needle bed assembly can be adjusted in a wider range, and the smooth detection is ensured. The vertical displacement structure can be a cylinder, a guide rail, a sliding table, a lead screw and other structures, a plurality of mounting positions can also be arranged on the support along the vertical direction, and the needle bed mounting rack 1101 is connected and fixed with the support at the mounting positions so as to achieve the purpose that the vertical position of the needle bed mounting rack 1101 can be adjusted, and the vertical displacement structure is not limited specifically.

Further, the operation of the driving structure 1102 for controlling the structure of the crank slider 1105 can be set with a manual control button, and the position of the needle bed assembly is switched by manual operation when needed to detect the assembly; the detection can also be automatically controlled, namely the driving structure 1102 automatically runs at regular intervals for controlling the switching state of the needle bed component to realize detection; the specific control manner is not limited.

Each embodiment provides needle bed detection mechanism, utilizes probe 11010 to detect the positive negative pole position of electric core, can replace the manual work to carry out the detection of electric core arrangement gesture in the module, is favorable to improving detection efficiency and accuracy. Furthermore, the arrangement of the crank slider 1105 structure can switch the needle bed assembly between the extended state and the retracted state skillfully, and in the process of switching the two states of the needle bed assembly, the probe 11010 is always in a downward or backward posture, so as to avoid accidental injury to the station operator; and in the process that the needle bed assembly is switched from the retraction state to the extension state, the needle bed assembly carries out a forward pushing moving process, even if an operator is at the station and the needle bed assembly touches the operator, the forward pushing process can also avoid damaging the operator, and compared with a descending process from a high place to a low place, the safety is higher.

A first bus welding station 114 is also provided on the first conveyor line between the side panel welding system 111 and the second transfer station 116. A side plate inspection station 112 and a first bus bar assembly station 113 are arranged between the side plate welding system 111 and the first bus bar welding station 114 in sequence. A bus inspection station 115 is arranged between the first bus welding station 114 and the second sequence transferring station 116; the busbar inspection station 115 can also be subjected to tool disassembly operation, namely, the fastening force of the tool to the module is relieved, and the subsequent second sequence transferring station 116 can transfer the module conveniently.

Furthermore, an end plate code printing station 12 can be arranged at the front end of the first conveying line and used for printing identification codes on the end plates so as to facilitate identification. The starting end of the first conveying line is provided with a battery cell feeding station 11. Further, a battery core assembling station 24 is arranged at a position, corresponding to the first sequence station, of the second conveying line. The assembly of energy storage battery module can be realized by the cell order-changing manipulator 17.

Referring to fig. 12, the cell order-changing manipulator 17 includes a first clamping jaw 171, a second clamping jaw 1711, a swinging mechanism 172, and an order-changing mounting bracket, the order-changing mounting bracket is used to be connected and fixed with a displacement mechanism, the displacement mechanism is used to provide spatial displacement, the swinging mechanism 172 is fixed to the order-changing mounting bracket, the first clamping jaw 171 is connected to the swinging mechanism 172, and the second clamping jaw 1711 is installed to the order-changing mounting bracket.

The displacement mechanism is used for providing space displacement, and this electricity core changes preface manipulator is used for realizing that the clamp of work piece gets, and then utilizes the displacement mechanism to drive this electricity core and changes preface device and remove the transfer that realizes the work piece between different processes in the space. The sequence conversion mounting rack is used for fixing all parts of the battery cell sequence conversion device and connecting the battery cell sequence conversion mounting rack with the displacement mechanism. The jaws are adapted to directly contact the workpiece to apply a clamping force to the workpiece. The swing mechanism 172 is arranged to drive the clamping jaws to swing, so that the workpieces clamped by the clamping jaws can swing under the driving of the swing mechanism 172, different postures of the workpieces can be obtained, and the requirements of different sequence turning postures are met.

The two clamping jaws of the first clamping jaw 171 and the second clamping jaw 1711 are arranged, so that two workpieces can be clamped simultaneously, and the efficiency is improved; and different relative postures between two workpieces can be realized through the swing of the first clamping jaw 171 between the two clamping jaws, so that the functionality and the applicability are improved.

The cell order-changing manipulator provided by the embodiment is provided with the swinging mechanism 172 connected with the first clamping jaw 171, and can swing and turn over after the first clamping jaw 171 clamps a workpiece, so that different postures of the workpiece can be obtained under the condition that the displacement mechanism is not moved, the requirements of different order-changing postures can be met, the functionality and flexibility of order-changing clamping are improved, and the applicability can be improved.

Specifically, for example, the workpiece may initially be placed flat on the station, and after the first clamping jaw 171 clamps the workpiece, the swing mechanism 172 may be rotated by 90 degrees to turn the workpiece from flat to upright. The swing mechanism 172 can also rotate to realize 180-degree turnover of the workpiece, and when the workpiece is a square battery cell, the position of the electrode of the workpiece can be exchanged. Referring to fig. 12 and 14, the square battery core clamped by the first clamping jaw 171 is rotated by the swinging mechanism 172 to exchange the positions of the positive electrode and the negative electrode; the relative relationship with the square cell gripped by the second jaw 1711 is changed.

Further, the displacement mechanism may be a one-dimensional or two-dimensional or three-dimensional linear displacement mechanism; so as to drive the cell sequence conversion device to move in a one-dimensional straight line, a two-dimensional straight line or a three-dimensional straight line. The displacement mechanism can also be a four-axis robot, a six-axis robot, a multi-degree-of-freedom mechanical arm and the like; so as to drive the order-transferring clamping device to perform multi-degree-of-freedom spatial displacement. The specific form of the displacement mechanism can be flexibly selected according to actual needs, and is not limited specifically.

Further, the swing mechanism 172 is a mechanism capable of providing a rotational movement, and may be, for example, a swing table, a swing cylinder, a gear structure, and the like, and is not limited in particular. Preferably, the swing mechanism 172 may be a swing cylinder.

In addition to the above embodiment, further, referring to fig. 12, the swinging mechanism 172 is connected to a connecting member 177, and the first holding jaw 171 is connected to the connecting member 177. The swing mechanism 172 can be fixedly connected with the connecting piece 177, and the clamping jaw is fixed on the connecting piece 177; the swing mechanism 172 drives the connecting member 177 to rotate integrally. The clamping jaws are connected with the swinging mechanism 172 through a connecting piece 177 with a certain length, so that when the swinging mechanism 172 swings, the clamping jaws not only change angles, but also change positions deviating from the initial positions, namely, rotate by taking the connecting piece 177 as a radius. The variability and the functionality of the sequencing clamping device can be increased.

Further, the sequence-transferring mounting bracket includes a bracket and a first connection plate 173 and a second connection plate 174 provided at opposite sides of the bracket; the first connecting plate 173 is used for fixed connection to the displacement mechanism; the swing mechanism 172 may be fixed to the inside of the second connecting plate 174 and the swing member of the swing mechanism 172 protrudes from the inside of the second connecting plate 174 to be connected to the jaw.

Further, a second jaw 1711 may be connected to the sequencing mount via a spacer 1712; so that the clamping surfaces of the second jaw 1711 and the first jaw 171 are in the same plane.

Further, the order-changing mounting frame is connected with two limiting mechanisms 175 at intervals on the swing path of the first clamping jaw 171; the limiting mechanism 175 is used for limiting the swing position of the clamping jaw, so that the clamping jaw rotates to the position of the preset limiting mechanism 175, an accurate required posture can be obtained, and different postures of the workpiece can be controlled conveniently. Referring to fig. 14, stop gear 175 includes spacing support 1751 and stopper 1752, and spacing support 1751 is fixed in the rotational order mounting bracket, and stopper 1752 is fixed in spacing support 1751, and stopper 1752 is used for stopping spacingly to the swing of clamping jaw. Stop mechanism 175 also includes a buffer stop 1753. Referring to fig. 13, a positioning block 1710 may be further coupled to the connection member 177; the positioning block 1710 is used for realizing the positioning of the clamping jaw by matching with the limiting block 52 and the buffer limiting block 53 when the swing mechanism 172 swings.

When the first clamping jaw 171 is positioned at one of the limiting mechanisms 175, the telescopic directions of the first clamping jaw 171 and the second clamping jaw 1711 are positioned on the same straight line; as shown in fig. 12. When the first clamping jaw 171 is located at the other limiting mechanism 175, the first clamping jaw 171 and the second clamping jaw 1711 are in a parallel state, and the extending and contracting directions of the two clamping jaws are parallel, as shown in fig. 14.

On the basis of the above embodiment, further, the first clamping jaw 171 and the second clamping jaw 1711 respectively comprise two opposite jaw bodies, and the bottom portions of the first clamping jaw 171 and the second clamping jaw 1711 are respectively connected with the stroke pins 176 between the two jaw bodies. The bottom of the clamping jaw is the side opposite to the opening side of the clamping jaw, and when the clamping jaw clamps a workpiece, the workpiece gradually moves to the bottom of the clamping jaw from the opening side of the clamping jaw. The travel pin 176 may limit the depth of insertion of the workpiece between the two jaw bodies. The travel pin 176 is provided to limit the depth of insertion of the workpiece into the jaw; the device is beneficial to improving the consistency of the depth of clamping the workpiece every time, and the intellectualization and the accuracy of the clamping device are improved.

Further, the two claw bodies of the clamping jaw can be plane, so that workpieces with plane surfaces, such as square battery cores or plate-shaped workpieces, can be clamped conveniently. The claw body of the clamping jaw can also not be a plane, for example, the claw body can be arc-shaped, so that the clamping jaw can be used for clamping workpieces with arc-shaped surfaces, such as cylindrical battery cores and the like. The specific shape of the jaw body of the jaw and the specific workpiece gripped by the jaw are not limited.

Further, referring to fig. 12, the jaw body of the jaw may be L-shaped. One side of the L-shaped jaw body is used for contacting with a workpiece to clamp the workpiece, and the other side of the L-shaped jaw body is used for connecting with a driving part of the clamping jaw, such as an air cylinder. The driving part of the clamping jaw is fixedly arranged and used for providing power for moving the clamping jaw body. The travel pin 176 may be fixed to the pawl body; along with the extension and contraction of the two claw bodies, the two claw bodies correspondingly move. The travel pin 176 may also be fixed to the drive member of the jaw; the claw body does not move with the extension and contraction of the claw body, and is not limited specifically.

On the basis of the above embodiment, further, the stroke pin 176 can limit and fix the depth of the workpiece inserted into the clamping jaw by abutting against the surface of the workpiece. A plurality of stroke pins 176 are symmetrically arranged on two sides of the bottom of the first clamping jaw 171; the second jaw 1711 is also symmetrically provided with a plurality of travel pins 176 on both sides of the bottom. Symmetrical abutting force can be applied to the workpiece, and the uniformity of the workpiece inserted into the clamping jaw is guaranteed.

In addition to the above embodiments, the trip pin 176 is an elastic structure. Further, referring to fig. 12, a detection bracket 178 is further connected to the sequencing mounting bracket, and a detection unit 179 is connected to the detection bracket 178. The detection unit 179 is used for detecting and verifying the workpieces after the sequence is changed by the sequence changing clamping device. So as to ensure that the posture of the workpiece after the sequence conversion meets the sequence conversion requirement.

Specifically, the detecting unit 179 can be an industrial camera, a distance measuring sensor, a code reader, and the like. The industrial camera can verify whether the posture of the workpiece meets the sequence conversion requirement through image detection; the distance measuring sensor can detect and verify whether the placement height of the workpiece meets the sequence conversion requirement through measuring the distance between the distance measuring sensor and the workpiece; the code reader can detect and verify whether the workpiece is the workpiece required by the sequence transferring by reading the identification code information on the workpiece. The detecting unit 179 may be other, and may be flexibly configured according to actual needs, and is not limited specifically.

Further, this embodiment provides a battery module assembling method based on the battery core sequence switching device of any one of the above embodiments, and the battery module assembling method includes: when the initial first clamping jaw 171 and the second clamping jaw 1711 are located on the same straight line in the telescopic direction, the battery cell is clamped respectively, and the stroke pins 176 on the first clamping jaw 171 and the second clamping jaw 1711 are compressed to preset positions respectively; swinging the first clamping jaw 171 to enable the two battery cores clamped by the first clamping jaw 171 and the second clamping jaw 1711 to be arranged side by side and in opposite postures, as shown in fig. 4; correspondingly inserting the two battery cells clamped by the first clamping jaw 171 and the second clamping jaw 1711 into the installation positions of the module base 1714; the first clamping jaw 171 and the second clamping jaw 1711 are loosened, and the two battery cells are installed in place under the pushing of the elastic force of the stroke pin 176; the assembly result is verified by the detection unit 179.

The battery module assembling method can be used for assembling modules with electric cores arranged in a positive and negative crossing mode, and can be used for assembling energy storage modules. Referring to fig. 15, one of the module bases 1714 has a plurality of mounting slots side by side; and forming a battery cell installation position, wherein the battery cell needs to be inserted into the installation groove for assembly. A plurality of mounting slots on one module base 1714 are divided into mounting slots for a plurality of first attitude cells 1715 and mounting slots for a plurality of second attitude cells 1716. The mounting grooves of the first posture cells 1715 are adjacent in sequence to form a first group of mounting grooves, and the mounting grooves of the second posture cells 1716 are adjacent in sequence to form a second group of mounting grooves. The first set of mounting slots and the second set of mounting slots are sequentially arranged in a crossed manner at intervals on the module base 1714. That is, the mounting grooves of the first posture cells 1715 and the second posture cells 1716 are sequentially formed in the plurality of mounting grooves of the module base 1714, and are sequentially arranged. The number of mounting grooves of the first posture cell 1715 and the number of mounting grooves of the second posture cell 1716 may be the same.

The module assembling method further comprises the following steps: the cell gripped by the first gripping jaw 171 and the cell gripped by the second gripping jaw 1711 may be inserted into the corresponding mounting positions of the first posture cell 1715 and the second posture cell 1716 at a time. Can set up and rotate to and parallel with second clamping jaw 1711 side by side and flexible direction at first clamping jaw 171, have the interval between first clamping jaw 171 and the second clamping jaw 1711 to when making the mould assemble, have the interval between two electric cores that the gesture is opposite at every turn. Therefore, when the battery cell is placed at each time, the two battery cells can be inserted into the corresponding positions of the installation positions with different postures.

Specifically, referring to fig. 15, in the module of this embodiment, the first posture battery cells 1715 and the second posture battery cells 1716 may be alternately placed in a group of three, that is, three second posture battery cells 1716 need to be placed after three first posture battery cells 1715 shown in the top row of battery cells in fig. 15. Two cells may be gripped by the first clamping jaw 171 and the second clamping jaw 1711, and then the first clamping jaw 171 may be turned over to form two cells with a space and opposite postures. The two cells are assembled in the manner of being placed in the bottom row in fig. 15. And then clamping the battery cell for the second time, and assembling the battery cell in a middle row placement mode in the figure 15 after overturning. The cores were then clamped again to form the top row of assembly in fig. 15. According to the method, the module assembly is finally completed. A plurality of modules are placed in the case 1713, thereby completing the module assembly. The module base 1714 can be fixed in the case 1713 and discharged, and then the cell can be assembled.

The clamping jaw drives the battery cell to be inserted into the module base 1714, and after the claw body is loosened, the compressed stroke pin 176 can apply thrust to the battery cell, so that the battery cell can be ensured to be inserted in place. After each assembly of the battery cell, a detection unit 179 such as a camera can be arranged to detect whether a corresponding battery cell is located at a corresponding mounting position, that is, whether the assembly position of the battery cell is correct or not and whether the conditions such as smooth assembly, toppling and the like exist or not are detected; and detecting whether the assembly posture of the battery cell is qualified or not by using a camera. Further, because the die assembly is high in the requirement for the height of the paired battery cells (if the heights of the poles on the surface of the battery cells are not uniform, the subsequent processes are affected, and the performance of the battery is affected), a distance measuring sensor can be arranged to detect and verify whether the heights on the surfaces of the battery cells are uniform and reach the standard.

Furthermore, the battery cell sequence conversion device is not only suitable for sequence conversion clamping and module assembly of a battery cell, but also suitable for sequence conversion clamping and assembly of other workpieces needing posture adjustment, and does not limit the specific suitable workpieces.

Further, the cell detection system 13 is disposed on the first conveying line. The second conveying line is provided with a box body feeding station 21 and a base mounting station 23 in sequence before the first sequence station. The second conveying line is used for producing the energy storage battery module, and the energy storage battery module adopts an assembly process of placing the battery core in the box body, as shown in fig. 15. The bottom of the case 1713 is provided with a module base 1714. The module base 1714 is provided with a placing groove corresponding to the battery cells one by one and used for placing the battery cells. Along the second conveyor line, the box 1713 can be loaded manually or by a manipulator; the mounting of the module base 1714 within the housing 1713 is then performed at the base mounting station 23. A box body code pasting station 22 can be arranged between the box body feeding station 21 and the base installation station 23.

When the box 1713 with the installed module base 1714 is conveyed to the first transfer station, the base can be coated with glue by using the glue coating mechanism 15; thereby when electric core inserts the base, paste between electric core bottom and the module base 1714 and be connected, improve the fastness that electric core is fixed.

At least one of a polarity detection station 25, an upper rack mounting station 26, a screw mounting station, a second bus bar assembling station 27, and a second bus bar welding station 28 is provided in this order on the second conveying line between the first transfer station and the second transfer station 116. The polarity detection station 25 is used for detecting the posture of the battery cell assembled into the case 1713, and preventing unqualified products from flowing into subsequent processes. The upper bracket mounting station 26 is used for mounting a bracket on the top of the battery cell and fixing the top of the battery cell.

Further, referring to fig. 16, the second transfer station 116 includes two linear guide rails 1161 crossing over the first conveying line and the second conveying line and arranged in parallel, and a connecting beam 1162 is movably connected between the two linear guide rails 1161; a vertical driving structure 1163 is connected to the connecting beam 1162, a fixing frame 1164 is connected to the bottom of the vertical driving structure 1163, two ends of the fixing frame 1164 are respectively connected to mounting plates, and a sequence turning clamping jaw 1165 is arranged on each of the two mounting plates; the two sequencing clamping jaws 1165 are oppositely arranged, and two opposite pressing plates 1166 are connected between the two sequencing clamping jaws 1165. The two sequencing clamping jaws 1165 are synchronously stretched and contracted to drive the two pressing plates 1166 to move towards or away from each other; so that the two compression plates 1166 clamp or unclamp the module on both sides of the module.

Further, the fixing frame 1164 is connected with the connecting beam 1162 in a vertically floating manner; may be implemented by a linear bearing 1168 structure. The connecting beam 1162 is connected with a vertical guide rail 1169 at a position corresponding to the mounting plate, and the mounting plate is movably connected with the vertical guide rail 1169. Further, the bottom of the pressure plate 1166 is connected with an L-shaped pallet 1167 for protecting below the module when transferring the module. The second transfer station 116 is preferably configured to transfer modules between the first conveyor line and the second conveyor line.

Further, a harness inspection station 210 and a module detection station 211 (e.g., EOL test station) are provided in sequence after the harness welding station 29. Still can continue to connect soft packet PACK production line for realize the machine-shaping of battery. Furthermore, the needle bed detection system 110, the polarity detection station 25, the post-weld inspection station and other stations for detection are respectively provided with a recovery station 30 for recovering and storing products which are unqualified in detection. Auxiliary components such as a dust suction mechanism matched with the welding equipment are respectively arranged at each welding station, such as the side plate welding system 111, the bus bar welding station and the wire harness welding station 29.

The battery module production line provided by the embodiment fuses the first conveying line and the second conveying line, so that the production line can be compatible with two production processes of the square power battery module and the energy storage battery module, the setting process of the battery production line can be greatly optimized, and the resource waste is avoided.

Furthermore, the battery module production line can be further provided with a stopping structure and a jacking structure at the station needing to stop operation. Taking a station of the cell testing system 13 as an example, a cell is placed on a tooling plate, the tooling plate is placed on a cell conveying line for conveying, and when the tooling plate reaches the testing mechanism, the blocking and stopping structure can be started to block the tooling plate from continuously moving so as to smoothly realize the operations of testing or transferring the cell and the like. The cell transfer chain still can set up jacking structure in accredited testing organization department, reachs accredited testing organization department by the fender and stops the structure and stop stopping when removing at the frock board, can start jacking structure and carry out the jacking to the frock board, both can make the frock board rise and avoid the test of transfer chain body structure to electric core to produce the influence, and accessible jacking structure fixes a position the frock board, and the going on of the electric core test of being convenient for. The positioning between the jacking structure and the tooling plate can be realized through structures such as a pin shaft.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a power battery module production line, its characterized in that includes the transfer chain and along electric core detecting system, rubber coating mechanism, the preface mechanism that changes, electric core that the transfer chain set gradually pile up station and curb plate welding system, be in on the transfer chain electric core pile up the station with still be equipped with needle bed detecting system between the curb plate welding system.

2. The power battery module production line of claim 1, wherein the cell detection system comprises a testing mechanism arranged on one side of the wire body and a transferring mechanism used for transferring the cells which are unqualified in test; the transfer mechanism comprises a linear guide rail, a vertical driving structure and a transfer clamping jaw, the linear guide rail is arranged above the line body, the vertical driving structure is connected with the linear guide rail, and the transfer clamping jaw is connected with the vertical driving structure in a vertically floating mode.

3. The power battery module production line of claim 2, wherein the testing mechanism includes at least one testing unit arranged side by side; the testing unit comprises a code reader, a horizontal guide frame and a vertical guide frame, wherein the horizontal position of the code reader is adjustably fixed on the horizontal guide frame, and the vertical position of the horizontal guide frame is adjustably fixed on the vertical guide frame.

4. The power battery module production line of claim 3, wherein the test unit further comprises a probe, a horizontal pushing structure, and a probe mounting bracket, the probe being connected to the horizontal pushing structure, the horizontal pushing structure being mounted to the probe mounting bracket;

the battery cell detection system further comprises a turnover mechanism used for adjusting the position of the battery cell reversely placed in the test, and the test mechanism is arranged in front of the turnover mechanism.

5. The power battery module production line of any one of claims 1 to 4, wherein an end plate feeding mechanism is further arranged on the side of the conveying line, the end plate feeding mechanism is used for conveying end plates, and the end plate feeding mechanism is located within the displacement range of the gluing mechanism.

6. The power battery module production line of any one of claims 1 to 4, wherein the sequence transferring mechanism comprises a cell sequence transferring manipulator and a sequence transferring conveyor line body which are respectively arranged at the side edge of the conveyor line, the sequence transferring conveyor line body is located within the displacement range of the cell sequence transferring manipulator, and the sequence transferring conveyor line body extends to the cell stacking station.

7. The power battery module production line of any one of claims 1 to 4, wherein the needle bed detection system comprises a needle bed mounting rack and a needle bed assembly, the needle bed mounting rack is used for being fixed above the first conveying line, the needle bed assembly is connected to the needle bed mounting rack, and the needle bed assembly comprises a plurality of probes;

the two sides of the needle bed component are respectively connected with the needle bed mounting rack through a crank sliding block structure, so that the needle bed component can extend forwards, the probe can retract downwards and backwards, and the probe can extend towards the rear side.

8. The power battery module production line of claim 7, wherein the needle bed assembly includes a connection plate, the probe being fixed to the connection plate; the needle bed assembly further comprises a fixing plate, the fixing plate is arranged on one side, deviating from the probe, of the connecting plate, the connecting plate is connected with the fixing plate in a vertically floating mode, and the fixing plate is connected with the needle bed mounting frame.

9. The power battery module production line of any one of claims 1 to 4, wherein the side plate welding system comprises a welding fixture; the welded fastening frock includes fixed unit, fixed unit includes mounting panel, clamp plate and promotion structure, the mounting panel hoist and mount are on the bracket component, there are two relative clamp plates that set up along first direction sliding connection on the mounting panel, the clamp plate is connected with the promotion structure, offer on the clamp plate be used for with welding seam position assorted constant head tank.

10. The power battery module production line of claim 9, wherein the inner side surface of the pressing plate is connected with a pressing block on at least one side of the positioning groove; the pressing block is arranged along the length direction of the positioning groove, and the width of one side, connected with the pressing plate, of the pressing block is smaller than or equal to the width of one side, far away from the pressing plate, of the pressing block.