CN111545854A

CN111545854A - Assembly and welding system of battery module

Info

Publication number: CN111545854A
Application number: CN202010398619.8A
Authority: CN
Inventors: 刘大军; 蒋世用; 成玲; 戴卫记; 漆绍军; 郝鹏飞; 丁坤鹏
Original assignee: Yinlong New Energy Co Ltd; Zhuhai Yinlong Electrical Appliance Co Ltd
Current assignee: Zhuhai Gree Titanium Electric Appliance Co ltd; Gree Altairnano New Energy Inc
Priority date: 2020-05-12
Filing date: 2020-05-12
Publication date: 2020-08-18
Anticipated expiration: 2040-05-12
Also published as: CN111545854B

Abstract

The invention provides an assembling and welding system of a battery module. The assembling and welding system comprises a stacking device, wherein the stacking device comprises a support body and a clamping mechanism arranged on the support body; the clamping mechanism is movably arranged in the first direction relative to the supporting body, the clamping mechanism is provided with a clamping space used for clamping the battery module, and the size of the clamping space is adjustable. The assembling and welding system adopting the technical scheme can be suitable for battery modules with different specifications and sizes.

Description

Assembly and welding system of battery module

Technical Field

The invention relates to the field of assembly and welding of battery modules, in particular to an assembly and welding system of a battery module.

Background

Energy storage products (such as battery modules) are influenced by market conditions and are generally suitable for small-batch or even single-piece production, and with the increasing varieties of the battery modules, the design of a factory production line in the prior art is basically fixed, namely, the factory production line can only be suitable for batch production of products of single variety or single size, so that the requirement of small-batch production of products of multiple varieties or specifications in the energy storage market cannot be met.

One production line (assembly and welding system of battery modules) in the prior art is usually only suitable for the production of the battery modules with one size, and cannot meet the requirement of generalization, and when the battery modules with different sizes are put into production, a large amount of cost is required to refit equipment or related tools on an automatic production line, so that manpower and material resources are consumed, and the production and manufacturing cost of the battery modules is greatly improved.

That is, the assembly and welding system of the battery module in the related art cannot meet the production requirements of the battery modules of various kinds or various specifications (sizes).

Disclosure of Invention

The invention mainly aims to provide an assembling and welding system of a battery module, which can be suitable for battery modules with different specifications and sizes.

In order to achieve the above object, the present invention provides an assembly and welding system of a battery module, the assembly and welding system including a stacking device, the stacking device including a support body and a clamping mechanism disposed on the support body; the clamping mechanism is movably arranged in the first direction relative to the supporting body, the clamping mechanism is provided with a clamping space used for clamping the battery module, and the size of the clamping space is adjustable.

Further, the stacking device further comprises a first sliding structure disposed between the support body and the clamping mechanism, the first sliding structure comprising: the rolling body is arranged on the body part at intervals along the first direction and is pivotally connected with the body part.

Further, the stacking device comprises a plurality of first sliding structures arranged at intervals along a second direction, wherein the second direction and the first direction form an included angle.

Further, the clamping mechanism includes: the bottom plate is arranged on the support body and can be arranged in a sliding manner in a first direction relative to the support body; the fixed side plate is fixedly connected with the bottom plate; the movable side plate is arranged on the bottom plate, and a clamping space is formed by the movable side plate and the fixed side plate; wherein the moving side plate is movably disposed in the second direction with respect to the fixed side plate.

Further, the clamping mechanism further comprises a plurality of through hole groups arranged on the bottom plate, the plurality of through hole groups are arranged at intervals along the first direction and the second direction, and the through hole groups comprise one or more through holes arranged at intervals.

Furthermore, the clamping mechanism also comprises two clamping plates, the clamping plates are arranged on one sides of the fixed side plate and the movable side plate, a clamping space is formed between the two clamping plates, and the clamping plates on the fixed side plate are movably arranged in the second direction relative to the fixed side plate; alternatively, the clamping plate on the moving side plate is movably disposed in the second direction with respect to the moving side plate.

Further, clamping mechanism still includes the regulating part, wears to be equipped with the regulating part on fixed curb plate or the removal curb plate, and the regulating part moves in the second direction with fixed curb plate or removal curb plate threaded connection in order to drive the clamp plate.

Further, the clamping mechanism further comprises: the pressure sensors are arranged on the clamping plates; and the controller is connected with the pressure sensor.

Further, the support body includes: supporting the flat plate; the supporting frame is connected with the supporting flat plate, and the clamping mechanism is arranged on the supporting flat plate; the stacking device further comprises a plurality of rollers arranged at the bottom of the supporting frame so as to drive the supporting body to move.

Further, the assembling and welding system further comprises a welding device, the welding device comprising: welding a platform; the welding mechanical arm is arranged on one side of the welding platform; the assembling and welding system further comprises a second sliding structure arranged on the welding platform, the clamping mechanism can move along the second sliding structure, the clamping mechanism at least comprises a first position located on the supporting body and a second position located on the welding platform, and when the clamping mechanism is located at the second position, the welding mechanical arm is used for carrying out welding operation on the to-be-welded battery module arranged on the clamping mechanism.

Further, welding set includes a plurality of second sliding structure and a plurality of first sliding structure along the second direction interval setting that a plurality of first sliding structure and a plurality of second sliding structure one-to-one set up that set up along the second direction interval.

Further, the welding device further includes: the support frame is connected with the welding platform; the horizontal rail is connected with the support frame and extends along the second direction; the vertical rail is arranged on the horizontal rail and arranged along a third direction, and an included angle is formed between the third direction and the second direction; the compressing device is arranged on the vertical track; wherein the hold-down device is movably arranged in the third direction relative to the vertical rail, and the vertical rail is movably arranged in the second direction relative to the horizontal rail, so that the hold-down device moves in the second direction and the third direction relative to the welding platform.

Further, assembly and welding system includes turning device, and turning device still includes: a bracket having a receiving cavity; the lifting mechanism is arranged in the accommodating cavity and can drive the module to be overturned to ascend or descend, and the module to be overturned is a battery module; the clamping mechanism is arranged in the accommodating cavity and is positioned above the lifting mechanism, the clamping mechanism comprises a clamping part, the clamping part has a first state of clamping the module to be turned and a second state of loosening the module to be turned, the clamping part comprises two clamping pieces which are oppositely arranged, when the two clamping pieces are close to each other, the clamping part is in the first state, and when the two clamping pieces are far away from each other, the clamping part is in the second state; wherein the clamping mechanism is rotatably arranged relative to the bracket.

Further, elevating system includes elevator motor, lifting screw and supporting platform, and elevator motor and leg joint, the one end of lifting screw is connected with elevator motor's power take off end, and elevator screw's the other end and supporting platform threaded connection, under elevator motor's effect, supporting platform can rise or descend.

Furthermore, one end of the lifting screw, which is connected with the supporting platform, is provided with a first external thread, the supporting platform is provided with a first through hole, and the inner wall surface of the first through hole is provided with a first internal thread corresponding to the first external thread.

Further, turning device still includes and is located two guide rails that hold the intracavity, and the both sides and the two guide rails one-to-one cooperation that set up relatively of supporting platform.

Further, fixture still includes the active adjustment subassembly, and the active adjustment subassembly includes: two active adjusting blocks; the two support rod groups are arranged in one-to-one correspondence with the two active adjusting blocks, and the two clamping pieces are arranged in one-to-one correspondence with the two support rod groups; wherein, two initiative regulating block can be close to each other or keep away from in the first direction to drive clamping part and be in first state or second state.

Further, the fixture further includes: an adjustment motor; the adjusting screw is connected with the power output end of the adjusting motor; be equipped with first screw thread section and second screw thread section on the adjusting screw, one setting in two initiative regulating block on adjusting screw and with first screw thread section screw-thread fit, another setting in two initiative regulating block on adjusting screw and with second screw thread section screw-thread fit, wherein, the initiative regulating block has the screw hole, the screw hole has the second internal thread, the second internal thread of two screw holes of two initiative regulating blocks revolves to the same, the direction of turning of the external screw thread of first screw thread section is opposite with the direction of turning of the external screw thread of second screw thread section.

Further, the turnover device further comprises a first sliding block which is pivotally connected with the support, a first sliding groove is formed in one side of the first sliding block, and the two active adjusting blocks are in sliding fit with the first sliding groove.

Furthermore, a first guide block matched with the first sliding groove is arranged on the active adjusting block; or the first sliding block is provided with at least one first stop block for preventing the two active adjusting blocks from sliding out of the first sliding groove.

Further, the clamping mechanism further comprises two driven adjusting blocks which are arranged in one-to-one correspondence with the two support rod groups, and the driven adjusting blocks are arranged in a sliding mode in the first direction relative to the support.

Further, turning device still include with support pivotal connection's second slider, be equipped with the second spout on the second slider, two driven regulating block all with second spout sliding fit.

By applying the technical scheme of the invention, the clamping space is adjustable in size, so that the clamping mechanism can clamp battery modules of different varieties or specifications, the assembly and welding system of the battery modules can be suitable for the production of the battery modules of different varieties or specifications, and the requirement of the universal production of an automatic production line is further met. The assembly and welding system of battery module in this application need not like prior art, need to drop into a large amount of expenses and reequip equipment or relevant frock on the automation line to practice thrift manpower and material resources, greatly reduced the manufacturing cost of battery module.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is an exploded view schematically illustrating an embodiment of an assembling and welding system for a battery module according to the present invention;

fig. 2 is a perspective view illustrating a stacking apparatus of an assembling and welding system of the battery module in fig. 1;

fig. 3 is a perspective view illustrating a welding apparatus of an assembling and welding system of the battery module in fig. 1;

fig. 4 is a schematic perspective view illustrating a turning device of the assembling and welding system of the battery module in fig. 1;

FIG. 5 is a schematic diagram showing the construction of the lifting mechanism and the support of the turning device of FIG. 4 (wherein the clamping mechanism is not installed);

FIG. 6 is a schematic view of the clamping mechanism and the bracket of the turnover device of FIG. 4;

FIG. 7 shows an exploded view of the clamping mechanism and bracket of FIG. 6;

FIG. 8 is a schematic view of the clamping mechanism of the flipping mechanism of FIG. 4;

FIG. 9 is a schematic view of the active adjustment block, adjustment motor and adjustment screw of the clamping mechanism of FIG. 8 after assembly;

FIG. 10 is a schematic view showing the connection of the adjustment motor and the adjustment screw of FIG. 9;

fig. 11 is a view showing a structure of one direction of a second slider of the turnover device of fig. 4; and

fig. 12 is a schematic view showing another direction of the second slider in fig. 11.

Wherein the figures include the following reference numerals:

10. a stacking device; 11. a support body; 111. supporting the flat plate; 113. a support frame; 1131. a roller; 12. a clamping mechanism; 121. a base plate; 122. fixing the side plate; 123. moving the side plate; 124. a clamping plate; 125. a through hole; 126. an adjustment member; 20. a welding device; 21. welding a platform; 22. welding a mechanical arm; 23. a support frame; 24. a horizontal rail; 25. a vertical track; 26. a pressing device; 30. a clamping mechanism; 31. a clamping member; 32. an active adjusting block; 33. a set of support rods; 34. an adjustment motor; 35. adjusting the screw rod; 351. a first thread segment; 352. a second thread segment; 36. a first guide block; 37. a driven adjusting block; 38. a second guide block; 41. a first slider; 42. a first chute; 43. a second slider; 431. a second stopper; 44. a second chute; 45. a turnover motor; 46. a first rotating shaft; 47. a second rotating shaft; 50. a support; 51. an accommodating chamber; 52. a guide rail; 60. a lifting mechanism; 61. a lift motor; 62. a lifting screw; 63. a support platform; 64. a first external thread; 70. a limit switch; 71. a third stopper; 80. a module to be turned over; 90. a turning device; 100. a first sliding structure; 101. a body portion; 102. a rolling body; 110. and a second sliding structure.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

In the present invention, unless specified to the contrary, use of the terms of orientation such as "upper, lower, top, bottom" or the like, generally refer to the orientation as shown in the drawings, or to the component itself in a vertical, perpendicular, or gravitational orientation; likewise, for ease of understanding and description, "inner and outer" refer to the inner and outer relative to the profile of the components themselves, but the above directional words are not intended to limit the invention.

This application has designed the assembly and the welding system of one set of battery module, adopts this system not only can satisfy the stack of different electric cores, battery module of different length and height, welding requirement. The system can also be suitable for the procedures of upside-down mounting, forward mounting, extrusion and the like of the battery cell. The assembly and welding system among the technical scheme of this application can be suitable for the stack of multiple variety or specification battery module, welding simultaneously on a production line, and need not invest manpower and fund for the difference of product and carry out equipment transformation. Aiming at the conditions of small batch and multiple varieties, the system can realize quick switching and even seamless butt joint so as to be suitable for battery modules with different sizes, thereby saving a large amount of design expenses of fixtures and tools and saving the cost.

It should be noted that, in the present application, the first direction refers to a width direction of the support frame 113 in fig. 2, the second direction refers to a length direction of the support frame 113, and the third direction refers to a height direction of the support frame 113, wherein the first direction, the second direction and the third direction are perpendicular to each other.

It should be noted that the clamping space in the present application refers to a three-dimensional space required for clamping the battery module, and specifically refers to a space formed between the two clamping plates 124. The clamping space in this application is the variable space of size, and the relative position relation of two clamp plates 124 on the second direction is adjusted to the accessible to adjust the size in clamping space, thereby adapt to the battery module of different varieties or specification. The size of the clamping space is set reasonably, that is, the size cannot be set too large or too small, so that it is ensured that the battery module can be installed and placed in the clamping space, and the clamping mechanism 12 can clamp the battery module subsequently.

In the embodiment of the present invention, the battery module includes a bus bar and a plurality of battery cells, and the stacking device 10 is used for stacking the battery cells together or transferring the battery module. Turning device 90 is used for carrying out the upset operation to a plurality of electric cores that the stack of battery module is good, ensures that the utmost point ear face of electric core is the parallel and level setting. Therefore, when the subsequent welding process is carried out, the pole lug surfaces of the plurality of electric cores can be ensured to be tightly matched with the row surface of the bus bar, and the welding yield is improved.

As shown in fig. 1 and 2, embodiments of the present invention provide a system for assembling and welding a battery module. The assembling and welding system comprises a stacking device 10, wherein the stacking device 10 comprises a support body 11 and a clamping mechanism 12 arranged on the support body 11; wherein the clamping mechanism 12 is movably disposed in a first direction with respect to the support body 11, the clamping mechanism 12 having a clamping space for clamping the battery module, the clamping space being adjustable in size.

According to the above arrangement, since the size of the clamping space is adjustable, the clamping mechanism 12 can clamp the battery modules of different varieties or specifications, so that the assembly and welding system of the battery modules can be suitable for the production of the battery modules of different varieties or specifications, and further the requirement of the universal production of an automatic production line is met. The assembly and welding system of battery module in this application need not like prior art, need to drop into a large amount of expenses and reequip equipment or relevant frock on the automation line to practice thrift manpower and material resources, greatly reduced the manufacturing cost of battery module. In addition, clamping mechanism 12 is for supporting body 11 movably setting in the first direction, conveniently shifts the battery module of centre gripping on clamping mechanism from bunching device 10 to other devices on like this, welding set 20 or turning device 90 to make things convenient for subsequent upset or the welding operation of battery module, and then practiced thrift manpower and material resources cost, improved the manufacturing efficiency of battery module.

As shown in fig. 1 and 2, in the embodiment of the present invention, the stacking device 10 further includes a first sliding structure 100 disposed between the supporting body 11 and the clamping mechanism 12, the first sliding structure 100 includes a body 101 and a plurality of rolling bodies 102, wherein the body 101 is connected to the supporting body 11, the plurality of rolling bodies 102 are arranged on the body 101 at intervals in the first direction, and the rolling bodies 102 are pivotally connected to the body 101.

In the above arrangement, the first sliding structure 100 enables the clamping mechanism 12 to slide in the first direction relative to the supporting body 11, so that the battery module clamped on the clamping mechanism 12 is conveniently transferred to other devices from the stacking device 10, thereby facilitating the subsequent overturning or welding operation of the battery module, saving the labor and material cost and improving the production and manufacturing efficiency of the battery module. In the present application, the sliding of the clamping mechanism 12 in the first direction with respect to the support body 11 is achieved by the rolling of the plurality of rolling bodies 102 on the body 101, and the rolling reduces the frictional force generated between the rolling bodies 102 and the body 101, thereby improving the sliding efficiency between the clamping mechanism 12 and the support body 11.

Of course, in an alternative embodiment not shown in the drawings of the present invention, the first sliding structure 100 may comprise a body portion 101 and a plurality of sliding blocks, with the sliding blocks sliding on the body portion 101 to realize the relative sliding of the clamping mechanism 12 and the supporting body 11.

Specifically, as shown in fig. 1 and 2, in the embodiment of the present invention, the stacking device 10 includes two first sliding structures 100 spaced apart in the second direction.

Among the above-mentioned technical scheme, set up two first sliding structure 100 and can make clamping mechanism 12 slide on the first direction for supporting body 11 better, conveniently transfer the battery module of centre gripping on clamping mechanism 12 from bunching device 10 to other devices on like this to make things convenient for subsequent upset or welding operation of battery module, and then practiced thrift manpower and material resources cost, improved the manufacturing efficiency of battery module. In addition, compared to the case where a single first sliding structure 100 is provided, the two first sliding structures 100 support the clamping mechanism 12 together, so that each first sliding structure 100 is subjected to a smaller pressure, and a friction force formed between the rolling bodies 102 and the body portion 101 of each first sliding structure 100 is relatively smaller, thereby improving the sliding efficiency between the clamping mechanism 12 and the support body 11. Compared with the arrangement of three or more first sliding structures 100, the two first sliding structures 100 can ensure the sliding efficiency between the clamping mechanism 12 and the supporting body 11, save the manufacturing cost of the stacking device 10 and improve the assembly efficiency of the stacking device 10.

Of course, in alternative embodiments of the present invention, not shown in the drawings, three or more first sliding structures 100 may be provided according to actual circumstances.

As shown in fig. 1 and 2, in the embodiment of the present invention, the clamping mechanism 12 includes a bottom plate 121, a fixed side plate 122, and a movable side plate 123. Wherein the bottom plate 121 is disposed on the support body 11, and the bottom plate 121 is slidably disposed in a first direction relative to the support body 11; the fixed side plate 122 is fixedly connected with the bottom plate 121; the movable side plate 123 is arranged on the bottom plate 121, and the movable side plate 123 and the fixed side plate 122 form a clamping space; the moving side plate 123 is movably disposed in the second direction with respect to the fixed side plate 122.

In the above arrangement, since the movable side plate 123 is movably disposed in the second direction relative to the fixed side plate 122, the relative position of the movable side plate 123 and the fixed side plate 122 in the second direction can be adjusted, so that the clamping mechanism 12 can conveniently adjust the size of the clamping space subsequently, and battery modules of different types or specifications can be mounted and placed in the clamping space and clamped by the clamping mechanism 12.

As shown in fig. 1 and 2, in the embodiment of the present invention, the clamping mechanism 12 further includes a plurality of through hole sets disposed on the base plate 121, the plurality of through hole sets being arranged at intervals in the first direction and the second direction, the through hole sets including a plurality of through holes 125 disposed at intervals.

It should be noted that in the present application, a threaded fastener (such as a bolt) is used to fix the movable side plate 123 to the bottom plate 121, and specifically, a plurality of threaded fasteners are threaded to the movable side plate 123 after passing through the plurality of through holes 125 of the plurality of through hole groups on the bottom plate 121, so as to fix the movable side plate 123 to the bottom plate 121.

In the above arrangement, the plurality of through-hole groups arranged at intervals in the first direction can facilitate the screw fasteners to fix the moving side plates 123 of different sizes on the bottom plate 121, so as to ensure that the clamping mechanism 12 can be applied to battery modules of different heights or widths. The plurality of through-hole groups arranged at intervals in the second direction can facilitate the threaded fasteners to fix the moving side plate 123 at different positions on the bottom plate 121, so as to ensure that the clamping mechanism 12 can be applied to battery modules of different lengths. Therefore, the assembly and welding system of the battery module can be suitable for the production of battery modules of different varieties or specifications, and the requirement of the universal production of an automatic production line is met.

Specifically, as shown in fig. 1 and 2, in the embodiment of the present invention, the clamping mechanism 12 further includes 32 through hole sets provided on the base plate 121. Wherein 4 via groups are arranged at intervals along the first direction, 8 via groups are arranged at intervals along the second direction, and each via group comprises 4 via holes 125 arranged at intervals.

In the above arrangement, the 4 through-hole groups arranged at intervals in the first direction can facilitate the threaded fasteners to fix the movable side plates 123 of different sizes on the bottom plate 121, so as to ensure that the clamping mechanism 12 can be applied to battery modules of different heights or widths. The 8 through-hole groups arranged at intervals in the second direction can facilitate the threaded fasteners to fix the movable side plate 123 at different positions on the bottom plate 121, so as to ensure that the clamping mechanism 12 can be applied to battery modules of different lengths. Therefore, the assembly and welding system of the battery module can be suitable for the production of battery modules of different varieties or specifications, and the requirement of the universal production of an automatic production line is met.

Specifically, as shown in fig. 1 and 2, in the embodiment of the present invention, 4 through holes 125 of each through hole group are arranged in a matrix shape.

Of course, in alternative embodiments not shown in the drawings of the present invention, each through hole group may be provided with 5 or more than 5 through holes, or the plurality of through holes 125 of each through hole group may be provided in a circular distribution, according to the actual situation.

As shown in fig. 1 and 2, in the embodiment of the present invention, the clamping mechanism 12 further includes two clamping plates 124, one side of each of the fixed side plate 122 and the movable side plate 123 is provided with the clamping plate 124, a clamping space is formed between the two clamping plates 124, and the clamping plate 124 on the fixed side plate 122 is movably disposed in the second direction with respect to the fixed side plate 122; the clamping plate 124 on the moving side plate 123 is movably disposed in the second direction with respect to the moving side plate 123.

In the above arrangement, since the clamping plate 124 on the fixed side plate 122 is movably disposed in the second direction relative to the fixed side plate 122, and the clamping plate 124 on the movable side plate 123 is movably disposed in the second direction relative to the movable side plate 123, the size of the clamping space formed between the two clamping plates 124 is adjustable, so that battery modules of different types or specifications can be mounted and placed in the clamping space, and can be clamped by the clamping mechanism 12, and thus the assembling and welding system of the battery modules can be suitable for the production of the battery modules of different types or specifications, and further meet the requirement of the universal production of an automatic production line. In addition, the two clamping plates 124 can move in the second direction, so that the two clamping plates 124 can simultaneously clamp the battery module, the clamping strength of the clamping mechanism 12 on the battery module is ensured, the clamping mechanism 12 can well clamp the battery module, and the normal operation of the assembly and welding system of the battery module is ensured.

Of course, in an alternative embodiment of the present invention, which is not shown in the drawings, it may be arranged as the case may be, that only the clamping plate 124 on the fixed side plate 122 is movably arranged in the second direction with respect to the fixed side plate 122, and that the clamping plate 124 on the moving side plate 123 is fixed to the moving side plate 123. Alternatively, the clamping plate 124 on the fixed side plate 122 is fixed on the fixed side plate 122, and the clamping plate 124 on the moving side plate 123 is movably disposed in the second direction with respect to the moving side plate 123. The two solutions also enable the function of adjusting the size of the clamping space.

As shown in fig. 1 and fig. 2, in the embodiment of the present invention, the clamping mechanism 12 further includes an adjusting member 126, the adjusting member 126 is disposed on the fixed side plate 122 or the movable side plate 123 in a penetrating manner, and the adjusting member 126 is screwed with the fixed side plate 122 or the movable side plate 123 to drive the clamping plate 124 to move in the second direction.

In the above arrangement, the adjusting part 126 can control the moving distance of the clamping plate 124 in the second direction relative to the fixed side plate 122 or the moving side plate 123, so that the adjusting part 126 can adjust the relative positions of the two clamping plates 124 in the second direction, and the adjusting part 126 can adjust the size of the clamping space formed between the two clamping plates 124, so that battery modules of different varieties or specifications can be mounted and placed in the clamping space and can be clamped by the clamping mechanism 12, and therefore, the assembling and welding system of the battery modules can be suitable for the production of the battery modules of different varieties or specifications, and further meet the requirement of the universal production of an automatic production line.

Preferably, in the embodiment of the present invention, the fixed side plate 122 and the movable side plate 123 are both provided with the adjusting member 126, so that the position of one clamping plate 124 relative to the fixed side plate 122 or the position of the other clamping plate 124 provided on the movable side plate 123 relative to the movable side plate 123 can be adjusted according to actual needs, thereby adjusting the distance between the two clamping plates 124 and forming clamping spaces with different sizes.

In an embodiment of the present invention, the clamping mechanism 12 further includes a pressure sensor and a controller. Wherein, each clamping plate 124 is provided with a pressure sensor; the controller is connected with the pressure sensor. In the above arrangement, the pressure sensor can monitor the clamping force applied by the clamping plate 124 on the battery module, so as to avoid the problem that the battery module is damaged due to the excessive clamping force, and further ensure that the clamping mechanism 12 can correctly clamp the battery module, thereby ensuring that the assembly and welding system of the battery module can normally work.

It should be noted that, pressure sensor is connected with the pressure display module, monitors the pressure of module stack at any time, ensures that the battery module can not damage the electric core because of locking force is too big at the stacking in-process.

As shown in fig. 1 and 2, in the embodiment of the present invention, the support body 11 includes a support flat plate 111 and a support frame 113. Wherein, the supporting frame 113 is connected with the supporting plate 111, and the clamping mechanism 12 is arranged on the supporting plate 111; the stacking device 10 further comprises a plurality of rollers 1131 disposed at the bottom of the support frame 113 to move the support body 11.

In the above-mentioned setting, a plurality of gyro wheels 1131 can make bunching device 10 move on ground to conveniently remove bunching device 10 to predetermined position, in order to ensure that the battery module of fixed clamp on bunching device 10 can follow and transfer to other devices on bunching device 10, for example welding set 20 or turning device 90, thereby make things convenient for subsequent upset or the welding operation of battery module, and then practiced thrift manpower and material resources cost, improved the production manufacturing efficiency of battery module.

As shown in fig. 1 and 3, in the embodiment of the present invention, the assembling and welding system further includes a welding device 20, and the welding device 20 includes a welding platform 21 and a welding robot 22. Wherein, the welding mechanical arm 22 is positioned at one side of the welding platform 21; the assembling and welding system further comprises a second sliding structure 110 arranged on the welding platform 21, the clamping mechanism 12 can move along the second sliding structure 110, the clamping mechanism 12 at least has a first position located on the support body 11 and a second position located on the welding platform 21, and when the clamping mechanism is located at the second position, the welding mechanical arm 22 performs a welding process on the to-be-welded battery module clamped by the clamping mechanism 12.

In the above arrangement, when the stacking device 10 moves to the predetermined position, the first sliding structure 100 and the second sliding structure 110 are abutted in the first direction, that is, the first sliding structure 100 and the second sliding structure 110 are in the same straight line, so that the clamping mechanism 12 can smoothly move from the stacking device 10 to the welding device 20, and the subsequent welding operation of the battery module is facilitated, thereby improving the production and manufacturing efficiency of the battery module. In addition, the welding robot arm 22 can move relative to the welding platform 21, so that the welding robot arm 22 can conveniently perform a welding process on the to-be-welded battery modules arranged on the clamping mechanism 12, and the normal operation of the assembly and welding system can be ensured.

As shown in fig. 1 and 3, in the embodiment of the present invention, the welding device includes a plurality of second sliding structures 110 arranged at intervals in the second direction and a plurality of first sliding structures 100 arranged at intervals in the second direction, and the plurality of first sliding structures 100 and the plurality of second sliding structures 110 are arranged in a one-to-one correspondence.

In the above arrangement, when the stacking device 10 moves to the predetermined position, the plurality of first sliding structures 100 and the plurality of second sliding structures 110 are butted in the first direction in a one-to-one correspondence manner, so that the clamping mechanism 12 can be smoothly moved from the stacking device 10 to the welding device 20, and the subsequent welding operation of the battery module is facilitated, thereby improving the production and manufacturing efficiency of the battery module.

Specifically, as shown in fig. 1 and 3, in the embodiment of the present invention, the welding device includes two second sliding structures 110 arranged at intervals in the second direction and two first sliding structures 100 arranged at intervals in the second direction, and the two first sliding structures 100 and the two second sliding structures 110 are arranged in a one-to-one correspondence.

In the above arrangement, when the stacking device 10 moves to the predetermined position, the two first sliding structures 100 and the two second sliding structures 110 are butted in the first direction in a one-to-one correspondence manner, so that the clamping mechanism 12 can smoothly move from the stacking device 10 to the welding device 20, and the subsequent welding operation of the battery module is facilitated, thereby improving the production and manufacturing efficiency of the battery module.

As shown in fig. 1 and 3, in the embodiment of the present invention, the welding device 20 further includes a support frame 23, a horizontal rail 24, a vertical rail 25, and a pressing device 26. Wherein, the support frame 23 is connected with the welding platform 21; the horizontal rail 24 is connected with the support frame 23, and the horizontal rail 24 extends along the second direction; the vertical rail 25 is arranged on the horizontal rail 24, the vertical rail 25 is arranged along a third direction, and an included angle is formed between the third direction and the second direction; the pressing device 26 is arranged on the vertical rail 25; the pressing device 26 is movably disposed in the third direction with respect to the vertical rail 25, and the vertical rail 25 is movably disposed in the second direction with respect to the horizontal rail 24, so that the pressing device 26 is moved in the second direction and the third direction with respect to the welding platform 21.

In the above arrangement, the pressing device 26 can move in the second direction and the third direction relative to the welding platform 21, the clamping mechanism 12 can move in the first direction relative to the welding platform 21, so that the pressing device 26 can move in the first direction, the second direction and the third direction relative to the welding platform 21, because the battery module is fixed on the welding platform 21 through the clamping mechanism 12, so that the pressing device 26 can move in the first direction, the second direction and the third direction relative to the battery module, thereby facilitating the pressing device 26 to press the busbar (aluminum bar) onto the tabs of each electric core in the battery module, facilitating the welding device 20 to weld the busbar and the tabs of each electric core subsequently, and satisfying the welding requirement of the battery module.

Turning device in this application can overturn and treat upset module 80 and make and treat that upset module 80 overturns and predetermine the angle. In the embodiment of the present invention, the preset angle means 180 degrees.

In the embodiment of the present invention, the module to be turned over 80 is a battery module. If adopt normal just adorn the mode welding and form battery module, then accomplish the back with electric core stack, because the highly certain manufacturing deviation that exists of electric core, consequently highly can't keep unanimous of utmost point ear, can cause the clearance between utmost point ear and the busbar inhomogeneous like this, in the welding process of utmost point ear and busbar, will lead to the rosin joint or weld not last to yields when direct influence welds. The turnover device provided by the invention and the embodiment of the invention can turnover the battery module; preferably, the turnover device can turn the battery module by 180 degrees, so that the pole lugs can be positioned on the same plane after the battery cells of the battery module are stacked, and the gap between the pole lugs and the bus bar is uniform or gapless, thereby improving the yield and the straight-through rate during welding.

The turnover device in the embodiment of the invention can realize turnover of the battery module. After the stacking of the battery cells of the battery module is completed, the turnover device turns over the battery module, so that the battery module is inverted, the lug faces of the battery module are flush (namely, the lugs are on the same plane), and the battery module is welded and connected with the busbar in an inverted state. That is, the embodiment of the present invention provides a flip-chip assembly mode (i.e. a flip-chip mode) of a battery module, which aims to provide a battery module assembled in the above-mentioned flip-chip mode to make the tab surfaces of the battery module flush when the cell height deviation is large and the tab surfaces of the battery module are not flush (for example, when a small current bus bar is too thin, the bus bar can be pressed against the tab arranged at one end of the cell under the pressing of a welding tool, so that the gap between the tab and the bus bar is uniform or gapless, but when a large current bus bar is too thick, the bus bar cannot be pressed against the tab under the pressing of the welding tool, so that the tab surfaces of the battery module are flush, and thus the flush tab surfaces of the battery module are tightly fitted, the gap between the tab and the bus bar is uniform or gapless, so that the tab and the bus bar can be well fitted, thereby improving the yield and the straight-through rate during welding.

Preferably, the bus bar may be an aluminum bar.

As shown in fig. 4, in the embodiment of the present invention, the flipping apparatus includes a bracket 50, a lifting mechanism 60 and a clamping mechanism 30, the bracket 50 has an accommodating cavity 51, the lifting mechanism 60 is disposed in the accommodating cavity 51, and the lifting mechanism 60 can drive the module to be flipped 80 to ascend or descend; the clamping mechanism 30 is arranged in the accommodating cavity 51, the clamping mechanism 30 is positioned above the lifting mechanism 60, the clamping mechanism 30 comprises a clamping part, the clamping part has a first state of clamping the module 80 to be overturned and a second state of loosening the module 80 to be overturned, the clamping part comprises two clamping pieces 31 which are oppositely arranged, when the two clamping pieces 31 are close to each other, the clamping part is in the first state, and when the two clamping pieces 31 are far away from each other, the clamping part is in the second state; wherein the clamping mechanism 30 is rotatably arranged relative to the holder 50.

Because fixture 30 sets up for support 50 is rotatable, fixture 30 can take and treat that upset module 80 rotates certain angle to the upset of treating upset module 80 is realized, the subsequent operation of treating upset module 80 of being convenient for. Specifically, the lifting mechanism 60 and the clamping mechanism 30 are both arranged in the accommodating cavity 51 of the bracket 50, and the module to be turned 80 is turned in the accommodating cavity 51 of the bracket 50; the lifting mechanism 60 can support the module to be overturned 80 and drive the module to be overturned 80 to ascend, and the module to be overturned 80 does not need to be manually carried, so that the efficiency is improved; the two clamping pieces 31 are close to each other, so that the clamping part of the clamping mechanism 30 positioned above the lifting mechanism 60 can clamp the module 80 to be overturned, and the clamping part is in a first state; then the clamping mechanism 30 drives the module 80 to be turned to rotate relative to the bracket 50, so as to turn the module 80 to be turned; after the turning module 80 is turned, the two clamping pieces 31 are far away from each other, the clamping parts loosen the module 80 to be turned, and the clamping parts are in a second state; the module to be turned 80 released by the clamping portion is placed on the elevating mechanism 60 and is lowered with the elevating mechanism 60, after which the next process can be performed.

Preferably, as shown in fig. 4, 6 to 8, in the embodiment of the present invention, the clamping mechanism 30 includes three clamping portions, so that the clamping mechanism 30 can be ensured to more stably clamp the module to be flipped 80. Of course, in an alternative embodiment not shown in the drawings of the present application, the clamping mechanism 30 may be configured to include one or two or more clamping portions, wherein the plurality is four or more, according to actual needs.

As shown in fig. 4 and 5, in the embodiment of the present invention, the lifting mechanism 60 includes a lifting motor 61, a lifting screw 62 and a supporting platform 63, the lifting motor 61 is connected to the bracket 50, one end of the lifting screw 62 is connected to a power output end of the lifting motor 61, the other end of the lifting screw 62 is in threaded connection with the supporting platform 63, and the supporting platform 63 can be lifted or lowered by the lifting motor 61.

In the above arrangement, the lifting motor 61 is connected to the bracket 50, the lifting motor 61 provides power for the lifting screw 62, the lifting screw 62 rotates under the action of the lifting motor 61, in the rotating process of the lifting screw 62, because the position of the lifting motor 61 relative to the bracket 50 is fixed, the supporting platform 63 in threaded connection with the lifting screw 62 can ascend or descend relative to the lifting screw 62 along the length direction of the lifting screw 62, the supporting platform 63 is used for supporting the module 80 to be turned, and in the ascending or descending process of the supporting platform 63, the module 80 to be turned can be driven to ascend or descend, so that the effect that the lifting mechanism 60 drives the module 80 to be turned to ascend or descend is achieved; the screw connection is simple and easy to operate, and the circumferential motion of the lifting screw 62 is converted into the linear reciprocating motion of the supporting platform 63 by the screw connection of the lifting screw 62 and the supporting platform 63, so that the supporting platform 63 can be lifted or lowered relative to the lifting screw 62 along the length direction of the lifting screw 62.

Of course, in the alternative embodiment not shown in the drawings, the present invention is not limited to the embodiment as long as the support platform 63 can be driven to ascend or descend.

As shown in fig. 4 and 5, in the embodiment of the present invention, one end of the lifting screw 62 connected to the supporting platform 63 is provided with a first external thread 64, the supporting platform 63 is provided with a first through hole, and an inner wall surface of the first through hole is provided with a first internal thread corresponding to the first external thread 64.

The threaded connection between the lifting screw 62 and the supporting platform 63 can be realized through the first external thread 64 on the lifting screw 62 and the first internal thread on the inner wall surface of the first through hole; the arrangement structure is simple and convenient for assembly; the support platform 63 is capable of linear reciprocating movement up and down along a first externally threaded section of the lifting screw 62 (the first externally threaded section is in the form of a section of the lifting screw 62 having the first external thread 64).

Preferably, the self-locking of the position of the supporting platform 63 is realized through the self-locking performance formed by the matching of the first internal thread on the inner wall surface of the first through hole on the supporting platform 63 and the first external thread 64 on the lifting screw 62, so that the relative position of the supporting platform 63 and the lifting screw 62 is fixed.

Of course, in alternative embodiments not shown in the drawings of the present application, it is also possible to arrange: a blind hole is formed in the supporting platform 63, and a first internal thread corresponding to the first external thread 64 is formed in the inner wall surface of the blind hole; in order to enable the supporting platform 63 to perform a linear reciprocating motion of ascending or descending on the first external thread section of the lifting screw 62, a certain height is required in a vertical direction in an area where the blind hole is located on the supporting platform 63, so that the blind hole has a sufficient length, and the first external thread section of the lifting screw 62 can be sufficiently inserted into the blind hole, thereby facilitating the linear reciprocating motion of the supporting platform 63 of ascending or descending relative to the lifting screw 62.

As shown in fig. 4 and 5, in the embodiment of the present invention, the turnover device further includes two guide rails 52 located in the accommodating cavity 51, and two opposite sides of the supporting platform 63 are in one-to-one correspondence with the two guide rails 52. In the above arrangement, the two guide rails 52 have a limiting function on the supporting platform 63, the supporting platform 63 slides up and down along the two guide rails 52, and the two guide rails 52 form a slide way for the supporting platform 63 to slide up and down.

Preferably, two guide rails 52 are connected to the carriage 50.

Specifically, the supporting platform 63 is controlled by the lifting motor 61 through the lifting screw 62, and the supporting platform 63 can slide up and down along the slide ways (i.e., the two guide rails 52) arranged on the bracket 50, so that the supporting platform 63 can be ensured to stably convey the module to be turned 80; when the supporting platform 63 drives the module 80 to be turned up, the clamping mechanism 30 can be ensured to stably clamp the module 80 to be turned over on the supporting platform 63.

As shown in fig. 4 and 6 to 8, in an embodiment of the present invention, the clamping mechanism 30 further includes an active adjustment assembly, the active adjustment assembly includes two active adjustment blocks 32 and two support rod sets 33, the two support rod sets 33 are disposed in one-to-one correspondence with the two active adjustment blocks 32, and the two clamping members 31 are disposed in one-to-one correspondence with the two support rod sets 33, wherein the two active adjustment blocks 32 can be close to or away from each other in a first direction to drive the clamping portion to be in a first state or a second state.

In the above arrangement, the clamping member 31 is arranged on the supporting rod group 33, the supporting rod group 33 is connected with the active adjusting block 32, and the active adjusting block 32 can drive the clamping member 31 to move along with the active adjusting block 32 through the supporting rod group 33; when the two active adjusting blocks 32 approach each other in the first direction, the two clamping pieces 31 of the clamping portion can be driven to approach each other in the first direction by the supporting rod group 33, and at this time, the clamping portion is in a first state capable of clamping the module to be turned 80; when the two active adjusting blocks 32 are far away from each other in the first direction, the two clamping pieces 31 of the clamping portion can be driven to be far away from each other in the first direction through the supporting rod group 33, and at the moment, the clamping portion is in a second state of loosening the module to be overturned 80; through being close to each other or keeping away from of two initiative regulating blocks 32, can make the clamping part press from both sides tightly or loosen and treat the upset module 80, make the clamping part switch between first state and second state to make fixture 30 press from both sides tightly or loosen and treat the upset module 80, for fixture 30 drives to treat the upset module 80 and rotate for support 50, and then realize that turning device treats the roll-over action of upset module 80 and has established the basis.

In addition, due to the driving action of the active adjusting block 32, the two clamping pieces 31 of the clamping portion can be close to or far away from each other in the first direction, that is, the distance between the two clamping pieces 31 is adjustable, so that the clamping portion can clamp the module 80 to be turned over with different thicknesses (the thickness refers to the size of the module 80 to be turned over in the first direction), and the application range of the turning device is wide.

Preferably, the clamp 31 is capable of reciprocating linear motion relative to the support rod group 33 along the length direction of the support rod group 33; optionally, as shown in fig. 4 and 6 to 8, each support rod group 33 includes two support rods, the two support rods are arranged at intervals in the vertical direction, each clamping member 31 is provided with two second through holes, the two second through holes and the two support rods are arranged in one-to-one correspondence, the clamping member 31 is arranged on the two support rods in a penetrating manner, and the clamping member 31 can slide along the length direction of the two support rods relative to the two support rods, so that the clamping portion can clamp the module to be flipped 80 with different lengths (the length refers to the dimension of the module to be flipped 80 in the length direction of the support rod group 33); specifically, the two clamping members 31 of the clamping portion can slide left and right relative to the two support rod sets 33 along the length direction of the support rod sets 33, so as to ensure that the two clamping members 31 can be suitable for modules with different lengths.

Meanwhile, since the distance of the supporting platform 63 in the vertical direction with respect to the clamping mechanism 30 is adjustable, that is, the size of the module to be flipped 80 conveyed to the clamping mechanism 30 through the supporting platform 63 in the vertical direction is adjustable, it is possible to make the clamping portion clamp the module to be flipped 80 of different heights (height refers to the size of the module to be flipped 80 in the vertical direction).

As can be seen from the above, the turnover device provided by the embodiments of the present invention and the present invention can be applied to the modules 80 to be turned over with different heights, different thicknesses and different lengths, and has a wide application range.

Of course, in alternative embodiments not shown in the drawings of the present application, it is also possible to arrange: each support rod group 33 comprises one or more support rods, the plurality of support rods are arranged at intervals in the vertical direction, one or more second through holes which are arranged in one-to-one correspondence with the one or more support rods are arranged on each clamping piece 31, and the clamping pieces 31 penetrate through the one or more support rods; wherein, the plurality is three or more.

As shown in fig. 4, 6 to 10, in the embodiment of the present invention, the clamping mechanism 30 further includes an adjusting motor 34 and an adjusting screw 35, and the adjusting screw 35 is connected to a power output end of the adjusting motor 34; the adjusting screw 35 is provided with a first thread section 351 and a second thread section 352, one of the two active adjusting blocks 32 is arranged on the adjusting screw 35 and is in thread fit with the first thread section 351, the other of the two active adjusting blocks 32 is arranged on the adjusting screw 35 and is in thread fit with the second thread section 352, wherein the active adjusting block 32 is provided with a threaded hole, the threaded hole is provided with a second internal thread, the turning directions of the second internal threads of the two threaded holes of the two active adjusting blocks 32 are the same, and the turning direction of the external thread of the first thread section 351 is opposite to that of the external thread of the second thread section 352.

In the above arrangement, the adjusting motor 34 provides power for the rotation of the adjusting screw 35, the two active adjusting blocks 32 are both in threaded connection with the adjusting screw 35, and because the turning directions of the second internal threads of the two threaded holes of the two active adjusting blocks 32 are the same, and the turning direction of the external thread of the first threaded section 351 is opposite to that of the external thread of the second threaded section 352, therefore, in the process of rotating the adjusting screw 35 under the driving of the adjusting motor 34, the two active adjusting blocks 32 can be close to or far away from each other, thereby realizing the active adjusting effect of the active adjusting assembly on the clamping part, and enabling the clamping part to be switched between the first state and the second state.

Preferably, the position self-locking of the two active adjusting blocks 32 is realized through the self-locking performance formed by the matching of the second internal threads of the two threaded holes of the two active adjusting blocks 32 with the external threads of the first threaded section 351 and the external threads of the second threaded section 352, so that the relative positions of the two active adjusting blocks 32 and the adjusting screw 35 are fixed.

Of course, in alternative embodiments not shown in the drawings of the present application, it is also possible to arrange: the second internal threads of the two threaded holes of the two active adjusting blocks 32 have opposite screw directions, and the external threads of the first threaded section 351 have the same screw direction as the external threads of the second threaded section 352.

As shown in fig. 4, 6 and 7, in the embodiment of the present invention, the flipping unit further includes a first sliding block 41 pivotally connected to the bracket 50, a first sliding slot 42 is formed on one side of the first sliding block 41, and the two active adjusting blocks 32 are slidably engaged with the first sliding slot 42.

In the above arrangement, the first sliding block 41 can rotate relative to the bracket 50, the two active adjusting blocks 32 can slide relative to the first sliding block 41 along the length direction of the first sliding groove 42, that is, the two active adjusting blocks 32 can approach to or move away from each other along the first sliding groove 42, the first sliding groove 42 has a limiting effect on the two active adjusting blocks 32, and the first sliding groove 42 forms a sliding way for the two active adjusting blocks 32 to approach to or move away from each other.

Specifically, the two active adjusting blocks 32 are close to or far away from each other under the control of the adjusting motor 34, the adjusting motor 34 is connected with the adjusting screw 35, the adjusting screw 35 is in threaded fit with the two active adjusting blocks 32, and the two active adjusting blocks 32 are controlled to slide back and forth along the first sliding groove 42 in the first direction through the forward and reverse rotation of the adjusting motor 34, so that the two clamping pieces 31 can clamp the modules 80 to be turned with different thicknesses.

As shown in fig. 7 and 8, in the embodiment of the present invention, the active adjusting block 32 is provided with a first guide block 36 which is engaged with the first sliding groove 42.

In the above arrangement, the first guide block 36 is matched with the first sliding groove 42, so that the active adjusting block 32 is connected with the first sliding block 41 in a clamping manner and can slide along the length direction of the first sliding groove 42 relative to the first sliding block 41, and thus, both the two active adjusting blocks 32 can be connected with the first sliding block 41 (that is, one end of the clamping mechanism 30 is connected with the first sliding block 41), and the two active adjusting blocks 32 can approach or separate from each other along the first sliding groove 42.

In addition, since both the active adjusting blocks 32 are connected to the first slider 41 and the first slider 41 can rotate relative to the bracket 50, the active adjusting blocks 32 can rotate relative to the bracket 50, so that the support rod group 33 connected to the active adjusting blocks 32 and the clamp 31 provided on the support rod group 33 can rotate relative to the bracket 50.

Preferably, the first sliding block 41 is provided with two first stoppers for preventing the two active adjusting blocks 32 from sliding out of the first sliding grooves 42. Optionally, the first sliding groove 42 may be a groove structure disposed on a side surface of the first sliding block 41, and both ends of the groove structure do not penetrate through the first sliding block 41, so that two first stoppers are naturally formed on the partial structures of the first sliding block 41 located at both ends of the first sliding groove 42, and the two active adjusting blocks 32 can be prevented from sliding out of the first sliding groove 42.

Of course, in an alternative embodiment not shown in the drawings of the present application, it is also possible to provide only one first stop on the first sliding block 41, the first stop being provided at one end of the first sliding groove 42, the first stop being used to prevent the two active adjusting blocks 32 from sliding out of the end of the first sliding groove 42 where the first stop is provided, according to the actual situation and the actual need.

Preferably, the adjusting motor 34 is connected to the first slider 41, so that the relative positions of the adjusting motor 34 and the first slider 41 are fixed, the adjusting motor 34 is connected to the two active adjusting blocks 32 through the adjusting screw 35, and the two active adjusting blocks 32 can slide along the length direction of the first sliding groove 42 relative to the first slider 41 through the adjusting motor 34; in this way, on the one hand, the two active adjusting blocks 32 can be moved closer to or away from each other, and on the other hand, the adjusting motor 34, the adjusting screw 35 and the two active adjusting blocks 32 can all be rotated with the first slider 41 relative to the bracket 50.

Preferably, as shown in fig. 7, in the embodiment of the present invention, a first bearing (not shown) is disposed at a position of the bracket 50 connected to the first slider 41, a first rotating shaft 46 corresponding to the first bearing is disposed on the first slider 41, and the first rotating shaft 46 is connected to the first bearing, so that the first slider 41 is pivotally connected to the bracket 50, the first slider 41 can rotate relative to the bracket 50, and both the active adjusting block 32 and the adjusting motor 34 connected to the first slider 41 can rotate relative to the bracket 50. Alternatively, the first sliding groove 42 is disposed on two opposite side surfaces of the first slider 41 corresponding to the first rotating shaft 46.

As shown in fig. 4, 6 to 8, in the embodiment of the present invention, the clamping mechanism 30 further includes two driven adjusting blocks 37 disposed in one-to-one correspondence with the two support rod sets 33, and the driven adjusting blocks 37 are slidably disposed in the first direction with respect to the bracket 50.

In the above technical solution, two active adjusting blocks 32 are arranged corresponding to two supporting rod groups 33 one to one, and two driven adjusting blocks 37 are arranged corresponding to two supporting rod groups 33 one to one, that is, one end of the supporting rod group 33 is connected to the active adjusting block 32, the other end of the supporting rod group 33 is connected to the driven adjusting block 37, and the adjusting motor 34 drives the adjusting screw 35 to rotate, so that the two active adjusting blocks 32 can be close to or away from each other in a first direction, and thus, under the driving of the two active adjusting blocks 32, the two supporting rod groups 33 and the two driven adjusting blocks 37 can be close to or away from each other in the first direction; the driven adjustment blocks 37 are slidably disposed with respect to the bracket 50 in the first direction, enabling the two driven adjustment blocks 37 to approach or separate from each other in the first direction.

As shown in fig. 4, 6, 7 and 11, in the embodiment of the present invention, the turning device further includes a second sliding block 43 pivotally connected to the bracket 50, the second sliding block 43 is provided with a second sliding slot 44, and both of the two driven adjusting blocks 37 are slidably engaged with the second sliding slot 44.

In the above arrangement, the second slider 43 can rotate relative to the bracket 50, the two driven adjusting blocks 37 can slide relative to the second slider 43 along the length direction of the second sliding groove 44, that is, the two driven adjusting blocks 37 can move close to or away from each other along the second sliding groove 44, the second sliding groove 44 has a limiting effect on the two driven adjusting blocks 37, and the second sliding groove 44 forms a sliding way for the two driven adjusting blocks 37 to move close to or away from each other.

As shown in fig. 7 and 8, in the embodiment of the present invention, the driven adjusting block 37 is provided with a second guide block 38 engaged with a second sliding groove 44.

In the above arrangement, the second guide block 38 cooperates with the second sliding groove 44, so that the driven adjusting block 37 is connected with the second sliding block 43 in a clamping manner and can slide along the length direction of the second sliding groove 44 relative to the second sliding block 43, so that both the driven adjusting blocks 37 can be connected with the second sliding block 43 (that is, the other end of the clamping mechanism 30 is connected with the second sliding block 43), and the driven adjusting blocks 37 can move toward or away from each other along the second sliding groove 44. In addition, since both the driven adjustment blocks 37 are connected to the second slider 43 and the second slider 43 is rotatable with respect to the bracket 50, the two driven adjustment blocks 37 are rotatable with respect to the bracket 50, and the support rod group 33 connected to the driven adjustment blocks 37 and the clamp 31 provided on the support rod group 33 can be rotated with respect to the bracket 50.

Preferably, as shown in fig. 7 and 11, in the embodiment of the present invention, two second stoppers 431 are disposed on the second slider 43 for preventing the two driven adjusting blocks 37 from sliding out of the second sliding grooves 44. Alternatively, the second sliding groove 44 may be a groove structure disposed on one side surface of the second sliding block 43, and both ends of the groove structure do not penetrate through the second sliding block 43, so that two second stoppers 431 are naturally formed on the partial structures of the second sliding block 43 located at both ends of the second sliding groove 44, and the two driven adjusting blocks 37 can be prevented from sliding out of the second sliding groove 44.

Of course, in an alternative embodiment not shown in the drawings of the present application, it is also possible to provide only one second stop 431 on the second slider 43 according to the actual situation and actual need, the second stop 431 being provided at one end of the second runner 44, the second stop 431 being used to prevent the two driven adjusters 37 from sliding out of the end of the second runner 44 where the second stop 431 is provided.

Preferably, as shown in fig. 7 and 12, in the embodiment of the present invention, a second bearing (not shown) is disposed at a position of the bracket 50 connected to the second slider 43, a second rotating shaft 47 corresponding to the second bearing is disposed on the second slider 43, and the second rotating shaft 47 is connected to the second bearing, so that the second slider 43 is pivotally connected to the bracket 50, the second slider 43 can rotate relative to the bracket 50, and thus the two driven adjusting blocks 37 connected to the second slider 43 can rotate relative to the bracket 50. Alternatively, the second sliding slot 44 is disposed on two opposite side surfaces of the second slider 43 corresponding to the second rotating shaft 47.

In the above technical solution, two active adjusting blocks 32 are all connected with the first slider 41, two driven adjusting blocks 37 are all connected with the second slider 43, that is, one end of the clamping mechanism 30 is connected with the first slider 41, the other end of the clamping mechanism 30 is connected with the second slider 43, the first slider 41 and the second slider 43 are all pivotally connected with the bracket 50, that is, the first slider 41 and the second slider 43 can both rotate relative to the bracket 50, and thus, the clamping mechanism 30 can be driven to rotate relative to the bracket 50 through the first slider 41 and the second slider 43, so that the clamping mechanism 30 can be rotatably disposed relative to the bracket 50, and further, the module 80 to be overturned can be driven to rotate relative to the bracket 50 through the clamping mechanism 30, so as to realize the overturning of the module 80 to be overturned.

Preferably, both the first bearing and the second bearing are disposed on the guide rail 52.

As shown in fig. 4, 6 and 7, in the embodiment of the present invention, the flipping unit further includes a flipping motor 45 disposed on the bracket 50, and a power output end of the flipping motor 45 is drivingly connected to the second slider 43.

In the above arrangement, the turning motor 45 provides power for the second slider 43, the turning motor 45 drives the second slider 43 to enable the second slider 43 to rotate relative to the bracket 50, and the clamping mechanism 30 and the first slider 41 can both rotate relative to the bracket 50 under the driving of the second slider 43, so as to realize the turning effect of the turning device on the module 80 to be turned; that is, the rotation of the clamping mechanism 30 (specifically, the clamping member 31 of the clamping mechanism 30) is controlled by the rotation of the turnover motor 45, so that the turnover of the module to be turned 80 is realized.

Preferably, the second slider 43 is connected to the power output end of the turnover motor 45 through a second rotating shaft 47 on the second slider 43, and one end of the second rotating shaft 47 penetrating through the second bearing is connected to the power output end of the turnover motor 45, so that the turnover motor 45 can drive the second slider 43.

Preferably, the turnover device further comprises a control mechanism for controlling the opening and closing of the lifting motor 61, the adjusting motor 34 and the turnover motor 45.

Preferably, upset motor 45 can be servo motor, servo motor can the accurate control by the flip angle of driven object, that is to say, regard as upset motor 45 with servo motor, can the flip angle of accurate control second slider 43, thus, when treating upset module 80 for the battery module, the flip angle that can accurate control battery module through upset motor 45 is 180, thereby make the utmost point ear of battery module can be in the coplanar, can not lead to the flip angle of battery module to be big or little because the upset position of second slider 43 transfinites, ensure can be accurate after the battery module upset put on supporting platform 63.

Preferably, the turnover device further comprises a position recognition mechanism, the position recognition mechanism is connected with the control mechanism, the position recognition mechanism can recognize the position of the supporting platform 63, the positions of the two active adjusting blocks 32 and the position of a certain fixed point on the second sliding block 43, the position recognition mechanism transmits recognized position information to the control mechanism, and the control mechanism controls the opening and closing of the lifting motor 61, the adjusting motor 34 and the turnover motor 45 according to the obtained position information. Preferably, the position recognition mechanism may be provided on an inner wall surface of the holder 50.

As shown in fig. 11 and 12, the turnover device further includes a limit switch 70, and the limit switch 70 is provided on the second slider 43.

Preferably, the limit switch 70 may be a travel switch.

As shown in fig. 6 and 7, the turnover device further includes a third stopper 71, the third stopper 71 is disposed on one side of the guide rail 52, and the limit switch 70 and the third stopper 71 cooperate to control the turning on and off of the turnover motor 45. Preferably, the limit switch 70 and the third stopper 71 are correspondingly disposed at the oppositely disposed position of the second slider 43 (i.e. the limit switch 70 and the third stopper 71 are oppositely disposed with respect to the second slider 43), so that when the second slider 43 is turned over by 180 °, the limit switch 70 can contact with the third stopper 71, and the third stopper 71 touches the contact of the limit switch 70, so that the limit switch 70 is turned off, thereby turning off the turnover motor 45, and turning over the module to be turned over 80 by 180 °.

In addition, limit switch 70 and servo motor provide dual guarantee for waiting that upset module 80 can overturn 180, ensure to wait that upset module 80 can be accurate 180.

The specific operation process of the turning device in the embodiment of the invention is as follows:

the first step is as follows: starting the adjusting motor 34 to rotate the adjusting screw 35, so that the two active adjusting blocks 32 slide back and forth along the length direction (i.e. the first direction) of the first sliding groove 42 relative to the first sliding block 41 under the driving of the adjusting screw 35, and according to the thickness of the battery module, the two active adjusting blocks 32 slide to the position where the distance between the two clamping pieces 31 is greater than the thickness of the battery module;

the second step is that: placing the battery module with the battery cell stack on a supporting platform 63, starting a lifting motor 61, driving a lifting screw 62 by the lifting motor 61 to rotate the lifting screw 62, enabling the supporting platform 63 to slide upwards along a lifting slide formed by two guide rails 52 arranged on a bracket 50, and conveying the battery module placed on the supporting platform 63 to a position between two clamping pieces 31;

the third step: the adjusting motor 34 is started again, the adjusting motor 34 drives the adjusting screw 35 to enable the adjusting screw 35 to rotate, the adjusting screw 35 drives the two active adjusting blocks 32 to enable the two active adjusting blocks 32 to approach each other along the first sliding groove 42, the two supporting rod groups 33, the two clamping pieces 31 and the two driven adjusting blocks 37 all approach each other along with the two active adjusting blocks 32, the two clamping pieces 31 can clamp the battery module, and at the moment, the clamping parts are in the first state, so that the clamping mechanism 30 clamps the battery module;

the fourth step: starting the lifting motor 61, driving the supporting platform 63 to descend by the lifting motor 61, and ensuring that the battery module has a height space capable of freely overturning;

the fifth step: starting the turnover motor 45, driving the second sliding block 43 to rotate by the turnover motor 45, driving the clamping mechanism 30 for clamping the battery module and the first sliding block 41 to turn over by the second sliding block 43 until the second sliding block 45 and the first sliding block 41 are turned over by 180 degrees, and then enabling the third stop block 71 to touch a contact of the limit switch 70 to disconnect the limit switch 70, so as to close the turnover motor 45, and stopping the rotation of the second sliding block 43, the clamping mechanism 30 for clamping the battery module and the first sliding block 41, so as to ensure that the two clamping pieces 31 for clamping the battery module rotate to accurate positions (namely, the positions turned over by 180 degrees, and after the battery module is turned over by 180 degrees, starting a positioning mechanism (the limit switch 70 is matched with the third stop block 71 and a servo motor), so as;

and a sixth step: starting the lifting motor 61, and driving the supporting platform 63 to ascend by the lifting motor 61 until the upper surface of the supporting platform 63 is contacted with the bottom surface of the battery module;

the seventh step: starting the adjusting motor 34, wherein the adjusting motor 34 drives the two active adjusting blocks 32 to enable the two active adjusting blocks 32 to be away from each other along the first sliding groove 42, the two clamping pieces 31 are also away from each other under the driving of the two active adjusting blocks 32, the two clamping pieces 31 loosen the battery module, at the moment, the clamping parts are in the second state, and the battery module is placed on the supporting platform 63;

eighth step: starting the lifting motor 61, driving the supporting platform 63 to descend by the lifting motor 61, and descending the battery module to an ideal height along with the supporting platform 63;

the ninth step: and carrying away the battery module and placing the battery module at a designated storage point.

All actions of the operation process are automatically controlled by program control, and each action stage is controlled and positioned by a control mechanism; through the operation process, the lug can be positioned on the same plane after the battery cell stacking of the battery module is finished, so that the gap between the lug and the busbar is uniform or gapless, and the yield and the straight-through rate during welding are improved.

The assembly and welding process of the battery module will be described as follows:

utilize bunching device 10 to be in the same place a plurality of electric cores stack, then a plurality of electric cores of stacking are shifted to turning device 90's supporting platform 63, utilize lifting screw 62 to rise suitable high back with supporting platform, two holders 31 of clamping part are close to each other, thereby press from both sides a plurality of electric cores of tight battery module, the motor drives the clamping part upset 180 this moment, thereby overturn the battery module, the battery module after realizing the upset is shifted to bunching device 10, shift to the support frame 23 of welding set 20 including the battery module of a plurality of electric cores by bunching device 10, utilize closing device 26 to compress tightly the busbar on the utmost point ear face of electric core, weld together busbar and electric core through welding mechanical arm 22 at last.

From the above description, it can be seen that, because the size of the clamping space is adjustable, the clamping mechanism can clamp battery modules of different varieties or specifications, so that the assembly and welding system of the battery modules can be suitable for the production of the battery modules of different varieties or specifications, and further the requirement of the universal production of an automatic production line is met. The assembly and welding system of battery module in this application need not like prior art, need to drop into a large amount of expenses and reequip equipment or relevant frock on the automation line to practice thrift manpower and material resources, greatly reduced the manufacturing cost of battery module. In addition, clamping mechanism for supporting the movably setting of body on the first direction, conveniently transfer the battery module of centre gripping on clamping mechanism to other devices from bunching device like welding set or turning device like this to make things convenient for subsequent upset or the welding operation of battery module, and then practiced thrift manpower and material resources cost, improved the production manufacturing efficiency of battery module. In addition, the lifting mechanism and the clamping mechanism are arranged in the accommodating cavity of the bracket, and the module to be overturned is overturned in the accommodating cavity of the bracket; the lifting mechanism can support the module to be overturned and drive the module to be overturned to ascend, the two clamping pieces are close to each other, so that the clamping part of the clamping mechanism positioned above the lifting mechanism can clamp the module to be overturned, and the clamping part is in a first state; then the clamping mechanism drives the module to be overturned to rotate relative to the bracket, so that the module to be overturned is overturned; after the overturning module is overturned, the two clamping pieces are far away from each other, the clamping part loosens the module to be overturned, and the clamping part is in a second state; the module to be turned over which is loosened by the clamping part is placed on the lifting mechanism and descends along with the lifting mechanism, and then the next process can be carried out; the turnover device in the technical scheme can realize turnover of the module to be turned over. When treating the upset module for the battery module, turning device can make the battery module upset 180 to can ensure to accomplish the back at the electric core stack of battery module, utmost point ear can be in the coplanar, makes the even or zero clearance in clearance between utmost point ear and the busbar, and then yields and straight rate when improving the welding.

It is to be understood that the above-described embodiments are only a few, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The assembling and welding system for the battery module is characterized by comprising a stacking device (10), wherein the stacking device (10) comprises a support body (11) and a clamping mechanism (12) arranged on the support body (11); wherein the clamping mechanism (12) is movably arranged in a first direction relative to the support body (11), the clamping mechanism (12) has a clamping space for clamping the battery module, and the size of the clamping space is adjustable.

2. The assembly and welding system according to claim 1, characterized in that said stacking device (10) further comprises a first sliding structure (100) arranged between said supporting body (11) and said clamping mechanism (12), said first sliding structure (100) comprising:

a body part (101) connected to the support body (11),

a plurality of rolling bodies (102) arranged on the body portion (101) at intervals in the first direction, the rolling bodies (102) being pivotally connected to the body portion (101).

3. The assembling and welding system according to claim 2, characterized in that said stacking device (10) comprises a plurality of said first sliding structures (100) arranged at intervals along a second direction, wherein said second direction is at an angle to said first direction.

4. The fitting and welding system according to any of the claims 1 to 3, characterized in that said clamping mechanism (12) comprises:

a bottom plate (121) provided on the support body (11), the bottom plate (121) being slidably provided in the first direction with respect to the support body (11);

a fixed side plate (122) fixedly connected with the bottom plate (121);

a movable side plate (123) disposed on the bottom plate (121), the movable side plate (123) and the fixed side plate (122) forming the clamping space; wherein the moving side plate (123) is movably disposed in a second direction with respect to the fixed side plate (122).

5. The assembly and welding system according to claim 4, wherein the clamping mechanism (12) further comprises a plurality of sets of through-holes provided on the base plate (121), the plurality of sets of through-holes being spaced apart in the first and second directions, the sets of through-holes comprising one or more spaced apart through-holes (125).

6. The fitting and welding system according to claim 4, characterized in that the clamping mechanism (12) further comprises two clamping plates (124), the clamping plates (124) are provided on one side of each of the fixed side plate (122) and the movable side plate (123), the clamping space is formed between the two clamping plates (124), and the clamping plates (124) on the fixed side plate (122) are movably disposed in the second direction with respect to the fixed side plate (122); alternatively, the clamp plate (124) on the moving side plate (123) is movably disposed in the second direction with respect to the moving side plate (123).

7. The assembling and welding system according to claim 6, characterized in that the clamping mechanism (12) further comprises an adjusting member (126), the adjusting member (126) is arranged on the fixed side plate (122) or the movable side plate (123) in a penetrating manner, and the adjusting member (126) is in threaded connection with the fixed side plate (122) or the movable side plate (123) to drive the clamping plate (124) to move in the second direction.

8. The assembly and welding system according to claim 6, wherein said clamping mechanism (12) further comprises:

the pressure sensor is arranged on each clamping plate (124);

and the controller is connected with the pressure sensor.

9. The fitting and welding system according to any of the claims from 1 to 3, characterised in that said supporting body (11) comprises:

a support plate (111);

a support frame (113) connected to the support plate (111), the clamping mechanism (12) being disposed on the support plate (111); the stacking device (10) further comprises a plurality of rollers (1131) arranged at the bottom of the support frame (113) to drive the support body (11) to move.

10. Assembly and welding system according to claim 2 or 3, characterized in that it further comprises a welding device (20), said welding device (20) comprising:

a welding platform (21);

a welding robot arm (22) disposed on one side of the welding platform (21);

the assembling and welding system further comprises a second sliding structure (110) arranged on the welding platform (21), the clamping mechanism (12) can move along the second sliding structure (110), the clamping mechanism (12) at least comprises a first position located on the support body (11) and a second position located on the welding platform (21), and when the clamping mechanism (12) is located at the second position, the welding mechanical arm (22) is used for carrying out welding operation on the battery modules to be welded arranged on the clamping mechanism (12).

11. The assembling and welding system according to claim 10, wherein said welding device (20) comprises a plurality of said second sliding structures (110) arranged at intervals along a second direction and a plurality of said first sliding structures (100) arranged at intervals along said second direction, wherein a plurality of said first sliding structures (100) and a plurality of said second sliding structures (110) are arranged in a one-to-one correspondence.

12. The assembly and welding system according to claim 10, wherein said welding device (20) further comprises:

a support frame (23) connected with the welding platform (21);

a horizontal rail (24) connected to the support frame (23), the horizontal rail (24) extending in a second direction;

the vertical rail (25) is arranged on the horizontal rail (24), the vertical rail (25) is arranged along a third direction, and an included angle is formed between the third direction and the second direction;

-a hold-down device (26) arranged on said vertical rail (25);

wherein the pressing device (26) is movably arranged in the third direction with respect to the vertical rail (25), the vertical rail (25) being movably arranged in the second direction with respect to the horizontal rail (24), such that the pressing device (26) is moved in the second direction and the third direction with respect to the welding platform (21).

13. The fitting and welding system according to claim 1, characterized in that it comprises a turning device (90), said turning device (90) further comprising:

a bracket (50), the bracket (50) having a receiving cavity (51);

the lifting mechanism (60) is arranged in the accommodating cavity (51), the lifting mechanism (60) can drive the module (80) to be turned to ascend or descend, and the module (80) to be turned is the battery module;

the clamping mechanism (30) is arranged in the accommodating cavity (51), the clamping mechanism (30) is positioned above the lifting mechanism (60), the clamping mechanism (30) comprises a clamping part, the clamping part has a first state of clamping the module to be turned (80) and a second state of loosening the module to be turned (80), the clamping part comprises two clamping pieces (31) which are oppositely arranged, when the two clamping pieces (31) are close to each other, the clamping part is in the first state, and when the two clamping pieces (31) are far away from each other, the clamping part is in the second state; wherein the clamping mechanism (30) is rotatably arranged relative to the bracket (50).

14. The assembling and welding system according to claim 13, characterized in that the lifting mechanism (60) comprises a lifting motor (61), a lifting screw (62) and a supporting platform (63), the lifting motor (61) is connected with the bracket (50), one end of the lifting screw (62) is connected with a power output end of the lifting motor (61), the other end of the lifting screw (62) is in threaded connection with the supporting platform (63), and the supporting platform (63) can be lifted or lowered under the action of the lifting motor (61).

15. The assembling and welding system according to claim 14, characterized in that one end of the lifting screw (62) connected with the supporting platform (63) is provided with a first external thread (64), the supporting platform (63) is provided with a first through hole, and the inner wall surface of the first through hole is provided with a first internal thread corresponding to the first external thread (64).

16. The assembly and welding system according to claim 14, characterized in that said upender device (90) further comprises two rails (52) located inside said housing cavity (51), said support platform (63) having opposite sides cooperating with said two rails (52) in a one-to-one correspondence.

17. The fitting and welding system according to any of the claims 13 to 16, wherein said clamping mechanism (30) further comprises an active adjustment assembly comprising:

two active adjustment blocks (32);

the two support rod groups (33) are arranged in one-to-one correspondence with the two active adjusting blocks (32), and the two clamping pieces (31) are arranged in one-to-one correspondence with the two support rod groups (33); the two active adjusting blocks (32) can be close to or far away from each other in a first direction so as to drive the clamping part to be in the first state or the second state.

18. The assembly and welding system according to claim 17, wherein said clamping mechanism (30) further comprises:

an adjustment motor (34);

the adjusting screw rod (35) is connected with the power output end of the adjusting motor (34); the adjusting screw (35) is provided with a first screw thread section (351) and a second screw thread section (352), one of the two active adjusting blocks (32) is arranged on the adjusting screw (35) and is in threaded fit with the first screw thread section (351), the other of the two active adjusting blocks (32) is arranged on the adjusting screw (35) and is in threaded fit with the second screw thread section (352), wherein the active adjusting blocks (32) are provided with threaded holes which are provided with second internal threads, the rotation directions of the second internal threads of the two threaded holes of the two active adjusting blocks (32) are the same, and the rotation direction of the external threads of the first screw thread section (351) is opposite to that of the external threads of the second screw thread section (352).

19. The assembly and welding system according to claim 17, wherein said upender device (90) further comprises a first slider (41) pivotally connected to said carriage (50), said first slider (41) being provided on one side with a first runner (42), said two active adjustment blocks (32) being in sliding engagement with said first runner (42).

20. The fitting and welding system according to claim 19, characterized in that said active adjustment block (32) is provided with a first guide block (36) cooperating with said first runner (42); or the first sliding block (41) is provided with at least one first stop block for preventing the two active adjusting blocks (32) from sliding out of the first sliding groove (42).

21. The assembling and welding system according to claim 17, characterized in that said clamping mechanism (30) further comprises two driven adjustment blocks (37) arranged in one-to-one correspondence with said two groups of support rods (33), said driven adjustment blocks (37) being slidably arranged in a first direction with respect to said carriage (50).

22. The assembly and welding system according to claim 21, wherein said upender device (90) further comprises a second slider (43) pivotally connected to said carriage (50), said second slider (43) being provided with a second runner (44), both said driven adjustment blocks (37) being in sliding engagement with said second runner (44).