Transfer device and battery production line

Abstract

The utility model relates to the technical field of battery production equipment, and discloses a transfer device and a battery production line, the transfer device has a first direction, a second direction and a third direction which are intersected pairwise, and the transfer device comprises a base; the clamping mechanism comprises a power assembly and a clamping jaw, and the power assembly drives the clamping jaw to move in the third direction; the first heat preservation mechanism comprises a first driving assembly and a first heat preservation block, and the first driving assembly can drive the first heat preservation block to move in the first direction; the second heat preservation mechanism comprises a second driving assembly and a second heat preservation block, the second driving assembly can drive the second heat preservation block to move in the first direction, and the first heat preservation block and the second heat preservation block are in contact with the battery cell when getting close to each other in the first direction. When the battery cell of the transfer device is exposed outside, the first heat preservation block and the second heat preservation block are close to each other and heat the battery cell, it is guaranteed that the surface of the battery cell is in a heat preservation state, and the temperature loss of the battery cell is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery production equipment technical field especially, and it is a kind of transfer device and battery production line. BACKGROUND

[0002] Lithium battery and its unique performance advantage have been widely used in portable electric appliances such as laptop, camcorder, mobile phone, mobile power supply etc., in recent years, lithium battery is widely used in electric vehicle industry.

[0003] In the production process of lithium battery, hot-pressing process is the key process of battery forming. In lithium battery process, the battery needs to pass through preheating machine, and the battery is heated and softened. After heating and softening, the battery is transferred to the hot-pressing station through the transfer mechanism, and the battery is compacted to prevent the internal structure of the battery from loosening, so as to prevent the battery from short circuit. The time between preheating and hot-pressing is generally between 10S-15S, which can ensure that the battery does not lose too much heat inside and does not affect the effect of hot-pressing.

[0004] However, when the equipment after hot-pressing fails, the hot-pressing machine has too much buffer material and appears stacking phenomenon, which can cause the hot-pressing machine to stop, and the battery on the transfer mechanism is exposed to the outside, and the surface temperature of the battery will be lost after a period of placement. The battery with lost temperature is hot-pressed again, which can cause the battery to be not pressed into shape, so as to cause the scrap battery. UTILITY MODEL CONTENT

[0005] The utility model aims at: provide a kind of transfer device, to solve the problem that the surface temperature of battery on transfer mechanism will be lost when the hot-pressing equipment in prior art fails;The utility model further provides a kind of battery production line using the transfer device.

[0006] In order to achieve the above purpose, the utility model provides a kind of transfer device for transferring battery, the transfer device has first direction, second direction and third direction intersecting with each other, and the transfer device comprises:

[0007] base;

[0008] clamping mechanism, the clamping mechanism includes power assembly and clamping jaw, the power assembly is connected with the base, the clamping jaw is drivingly connected with the power assembly, and the power assembly drives the clamping jaw to move along the third direction to clamp the battery;

[0009] first heat preservation mechanism, the first heat preservation mechanism includes first driving assembly and first heat preservation block, the first driving assembly is fixedly connected with the base, the first driving assembly is drivingly connected with the first heat preservation block, and the first driving assembly can drive the first heat preservation block to move along the first direction;

[0010] A second heat preservation mechanism, the second heat preservation mechanism comprises a second drive assembly and a second heat preservation block, the second drive assembly is fixedly connected with the base, the second drive assembly is drivingly connected with the second heat preservation block, the second drive assembly can drive the second heat preservation block to move along the first direction, the first heat preservation block and the second heat preservation block are close to each other along the first direction and contact the battery cell.

[0011] Preferably, the first drive assembly comprises a first lifting cylinder and a first positioning plate, the first lifting cylinder is fixedly connected with the base, the first lifting cylinder is arranged along the first direction, the first lifting cylinder is drivingly connected with the first positioning plate, and the first heat preservation block is fixedly connected with the first positioning plate.

[0012] Preferably, the first drive assembly further comprises a first guide rail, the first guide rail is fixedly connected with the base, the first guide rail extends along the first direction, and the first positioning plate is slidingly assembled in the first guide rail along the first direction.

[0013] Preferably, the second drive assembly comprises a second lifting cylinder and a second positioning plate, the second lifting cylinder is fixedly connected with the base, the second lifting cylinder is arranged along the first direction, the second lifting cylinder is drivingly connected with the second positioning plate, and the second heat preservation block is fixedly connected with the second positioning plate.

[0014] Preferably, the second drive assembly further comprises a second guide rail, the second guide rail is fixedly connected with the base, the second guide rail extends along the first direction, and the second positioning plate is slidingly assembled in the second guide rail along the first direction.

[0015] Preferably, the second drive assembly further comprises a pushing cylinder, the second positioning plate is provided with a sliding rail extending along the second direction, the second heat preservation block is slidingly assembled in the sliding rail, and the pushing cylinder is drivingly connected with the second heat preservation block.

[0016] Preferably, the first heat preservation block and the second heat preservation block each comprise a heat preservation plate and a heating rod, the heat preservation plate is provided with a heat preservation groove, and the heating rod is embedded in the heat preservation groove.

[0017] Preferably, the power assembly comprises a sliding seat, a clamping cylinder and a power guide rail, the clamping cylinder and the power guide rail are fixedly connected with the base, the power guide rail extends along the third direction, the sliding seat is slidingly assembled in the power guide rail along the third direction, the clamping cylinder is drivingly connected with the sliding seat, and the clamping jaw is fixedly connected with the sliding seat.

[0018] Preferably, the power assembly further comprises a pressing cylinder, a pressing guide rail and a pressing plate, the pressing cylinder and the pressing guide rail are fixedly connected with the sliding base, the pressing guide rail extends along the first direction, the pressing plate is slidingly assembled on the pressing guide rail along the first direction, and the pressing cylinder is in transmission connection with the pressing plate; the clamping jaw comprises a first clamping plate and a second clamping plate, the first clamping plate is fixedly connected with the sliding base, the second clamping plate is fixedly connected with the first clamping plate, the pressing plate and the second clamping plate are oppositely arranged along the first direction, and the pressing cylinder can drive the pressing plate to move along the first direction to press the battery cell clamped by the clamping jaw.

[0019] The utility model also provides a battery production line, including transfer device of any prior art.

[0020] Compared with the prior art, the transfer device and the battery production line have the beneficial effects that: the first heat preservation mechanism and the second heat preservation mechanism are further arranged on the base, when the battery cell of the transfer device is exposed to the outside, the power assembly of the clamping mechanism can drive the clamping jaw to clamp and fix the battery cell, the first drive assembly of the first heat preservation mechanism drives the first heat preservation block to move along the first direction, the second drive assembly of the second heat preservation mechanism can drive the second heat preservation block to move along the first direction, the first heat preservation block and the second heat preservation block approach each other and adhere to the battery cell along the first direction, the battery cell is heated, the surface of the battery cell is kept in a heat preservation state, and temperature loss of the battery cell is avoided; when production is resumed, the first heat preservation block and the second heat preservation block are away from the battery cell, do not affect normal production of the hot press, and the production of scrapped battery cells is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a structure schematic view of the transfer device of the utility model;

[0022] Figure 2 is Figure 1 a bottom structure schematic view of the transfer device of the utility model;

[0023] Figure 3 is Figure 1 a state schematic view of the transfer device of the utility model when transferring the battery cell but not heat preservation;

[0024] Figure 4 is Figure 3 a side view of the transfer device of the utility model;

[0025] Figure 5 is Figure 1 a state schematic view of the transfer device of the utility model when transferring the battery cell and heat preservation;

[0026] Figure 6 is Figure 5 a side view of the transfer device of the utility model.

[0027] In the diagram, 1 is the base, 2 is the clamping mechanism, 21 is the power component, 211 is the slide, 212 is the clamping cylinder, 213 is the power guide rail, 214 is the pressing cylinder, 215 is the pressing guide rail, 216 is the pressing plate, 22 is the gripper, 221 is the first clamping plate, 222 is the second clamping plate, 3 is the first insulation mechanism, 31 is the first drive component, 311 is the first lifting cylinder, 312 is the first positioning plate, 313 is the first guide rail, 32 is the first insulation block, 4 is the second insulation mechanism, 41 is the second drive component, 411 is the second lifting cylinder, 412 is the second positioning plate, 413 is the second guide rail, 414 is the propulsion cylinder, 415 is the slide rail, 42 is the second insulation block, 5 is the insulation plate, 51 is the insulation groove, 6 is the heating rod, 7 is the battery cell, Z is the first direction, Y is the second direction, and X is the third direction. Detailed Implementation

[0028] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0029] A preferred embodiment of the transfer device of this utility model is as follows: Figures 1 to 6 As shown, the transfer device is used to transfer battery cell 7. The transfer device has a first direction Z, a second direction Y, and a third direction X that intersect each other. In this embodiment, the first direction Z, the second direction Y, and the third direction X are perpendicular to each other. The first direction Z is the up-down direction, the second direction Y is the front-back direction, and the third direction X is the left-right direction. The transfer device includes a base 1, a clamping mechanism 2, a first heat preservation mechanism 3, and a second heat preservation mechanism 4. The base 1 is the supporting foundation of the transfer device and is used to fix it to a machine tool or ground foundation. The clamping mechanism 2, the first heat preservation mechanism 3, and the second heat preservation mechanism 4 are all fixedly assembled on the base 1.

[0030] The clamping mechanism 2 includes a power component 21 and grippers 22. The power component 21 is fixedly connected to the base 1 and is driveably connected to the grippers 22. The power component 21 provides power to the clamping mechanism to drive the grippers 22 to move along a third direction X to clamp the battery cell 7. In this embodiment, there are two grippers 22, which are spaced apart along the third direction X and are symmetrical to each other. There are two sets of power components 21, which are drively connected to the two grippers 22 one-to-one. When the two grippers 22 are close to each other, they can clamp and fix the battery cell 7 along the third direction X. When the two grippers 22 are far apart, they release the battery cell 7.

[0031] The first heat preservation mechanism 3 comprises a first driving assembly 31 and a first heat preservation block 32. The first driving assembly 31 is fixedly connected with the base 1, and the first driving assembly 31 is in transmission connection with the first heat preservation block 32. The first driving assembly 31 provides power for the movement of the first heat preservation block 32, so as to drive the first heat preservation block 32 to move along the first direction Z. When the first heat preservation block 32 moves along the first direction Z, the first heat preservation block 32 can be close to or away from the battery cell 7 clamped by the two clamping jaws 22. When the battery cell 7 is exposed to the outside, the first heat preservation block 32 can be in contact with the battery cell 7, so as to heat the surface of the battery cell 7 facing the first heat preservation block 32, and ensure that the surface of the battery cell 7 is in a heat preservation state.

[0032] The second heat preservation mechanism 4 comprises a second driving assembly 41 and a second heat preservation block 42. The second driving assembly 41 is fixedly connected with the base 1, and the second driving assembly 41 is in transmission connection with the second heat preservation block 42. The second driving assembly 41 provides power for the movement of the second heat preservation block 42, so as to drive the second heat preservation block 42 to move along the first direction Z. When the second heat preservation block 42 moves along the first direction Z, the second heat preservation block 42 can be close to or away from the battery cell 7 clamped by the two clamping jaws 22. When the battery cell 7 is exposed to the outside, the second heat preservation block 42 can be in contact with the battery cell 7, so as to heat the surface of the battery cell 7 facing the second heat preservation block 42, and ensure that the surface of the battery cell 7 is in a heat preservation state.

[0033] In the embodiment, the first heat preservation block 32 and the second heat preservation block 42 are arranged oppositely along the first direction Z. The first heat preservation block 32 is located on the upper side of the second heat preservation block 42, and the battery cell 7 is located between the first heat preservation block 32 and the second heat preservation block 42. When the first driving assembly 31 drives the first heat preservation block 32 to move, the second driving assembly 41 drives the second heat preservation block 42 to move and approach each other along the first direction Z to contact the battery cell 7. The first heat preservation block 32 and the second heat preservation block 42 respectively contact the battery cell 7 from the upper side and the lower side, and heat the upper side and the lower side of the battery cell 7. Since the upper side and the lower side of the battery cell 7 are large surfaces, the surface of the battery cell 7 is in a heat preservation state. When the first heat preservation block 32 and the second heat preservation block 42 move away from each other along the first direction Z, the first heat preservation block 32 and the second heat preservation block 42 are separated from the surface of the battery cell 7, and do not affect the normal production of the hot press.

[0034] In the process of normal production, the first heat preservation mechanism 3 and the second heat preservation mechanism 4 are not enabled, and the clamping mechanism 2 normally transfers the battery cell 7. When the equipment fails after hot pressing, the first heat preservation mechanism 3 and the second heat preservation mechanism 4 are enabled to heat the battery cell 7. When the equipment recovers, the first heat preservation mechanism 3 and the second heat preservation mechanism 4 are retracted, which does not affect the normal production of the hot press, reduces the generation of scrapped battery cells 7, improves the yield rate of the production line, and improves the safety of the battery cell 7.

[0035] The transfer device is further provided with a first heat preservation mechanism 3 and a second heat preservation mechanism 4 on the base 1. When the battery cell 7 of the transfer device is exposed to the outside, the power assembly 21 of the clamping mechanism 2 can drive the clamping jaw 22 to clamp and fix the battery cell 7, the first driving assembly 31 of the first heat preservation mechanism 3 can drive the first heat preservation block 32 to move along the first direction Z, the second driving assembly 41 of the second heat preservation mechanism 4 can drive the second heat preservation block 42 to move along the first direction Z, and the first heat preservation block 32 and the second heat preservation block 42 are close to each other and adhere to the battery cell 7 along the first direction Z, so as to heat the battery cell 7 and ensure that the surface of the battery cell 7 is in a heat preservation state, thereby avoiding temperature loss of the battery cell 7; when the production is resumed, the first heat preservation block 32 and the second heat preservation block 42 are away from the battery cell 7, so as not to affect the normal production of the hot press and reduce the generation of scrapped battery cells 7.

[0036] Preferably, the first driving assembly 31 comprises a first lifting cylinder 311 and a first positioning plate 312, the first lifting cylinder 311 is fixedly connected with the base 1, the first lifting cylinder 311 is arranged along the first direction Z, the first lifting cylinder 311 is in transmission connection with the first positioning plate 312, and the first heat preservation block 32 is fixedly connected with the first positioning plate 312.

[0037] The first lifting cylinder 311 is arranged along the first direction Z, the piston rod of the first lifting cylinder 311 can be telescopic along the first direction Z, the first positioning plate 312 is driven to move along the first direction Z, and then the first heat preservation block 32 is driven to reciprocate along the first direction Z via the first positioning plate 312. In the embodiment, the first positioning plate 312 is a rectangular plate material extending along the second direction Y, one end of the first positioning plate 312 is fixedly connected with the piston rod of the first lifting cylinder 311, and the other end is fixedly connected with the first heat preservation block 32 through bolts.

[0038] Preferably, the first driving assembly 31 further comprises a first guide rail 313, the first guide rail 313 is fixedly connected with the base 1, the first guide rail 313 extends along the first direction Z, and the first positioning plate 312 is slidingly assembled in the first guide rail 313 along the first direction Z.

[0039] The first guide rail 313 of the first driving assembly 31 extends along the first direction Z and is fixed on the base 1. Since the first positioning plate 312 is slidingly assembled in the first guide rail 313 along the first direction Z, when the first lifting cylinder 311 drives the first positioning plate 312 to ascend and descend along the first direction Z, the first guide rail 313 can limit the direction of the first positioning plate 312, thereby increasing the stability of the movement of the first positioning plate 312.

[0040] Preferably, the second driving assembly 41 comprises a second lifting cylinder 411 and a second positioning plate 412, the second lifting cylinder 411 is fixedly connected with the base 1, the second lifting cylinder 411 is arranged along the first direction Z, the second lifting cylinder 411 is in transmission connection with the second positioning plate 412, and the second heat preservation block 42 is fixedly connected with the second positioning plate 412.

[0041] The second lifting cylinder 411 is arranged along the first direction Z, the piston rod of the second lifting cylinder 411 can be telescopic along the first direction Z, the second positioning plate 412 is driven to move along the first direction Z, and then the second heat preservation block 42 is driven to reciprocate along the first direction Z via the second positioning plate 412. In the embodiment, the second positioning plate 412 is a rectangular plate material extending along the first direction Z, one end of the second positioning plate 412 is fixedly connected with the piston rod of the second lifting cylinder 411, and the other end is fixedly connected with the second heat preservation block 42 through bolts.

[0042] Preferably, the second driving assembly 41 further comprises a second guide rail 413, the second guide rail 413 is fixedly connected with the base 1, the second guide rail 413 extends along the first direction Z, and the second positioning plate 412 is slidingly assembled in the second guide rail 413 along the first direction Z.

[0043] The second guide rail 413 of the second driving assembly 41 extends along the first direction Z and is fixed on the base 1, since the second positioning plate 412 is slidingly assembled in the second guide rail 413 along the first direction Z, when the second lifting cylinder 411 drives the second positioning plate 412 to lift along the first direction Z, the second guide rail 413 can limit the direction of the second positioning plate 412, and the stability of the movement of the second positioning plate 412 is increased.

[0044] Preferably, the second driving assembly 41 further comprises a second guide rail 413, the second guide rail 413 is fixedly connected with the base 1, the second guide rail 413 extends along the first direction Z, and the second positioning plate 412 is slidingly assembled in the second guide rail 413 along the first direction Z.

[0045] A slide rail 415 extending along the second direction Y is provided on the second positioning plate 412. The second heat-insulating block 42 is slidably mounted on the slide rail 415 along the second direction Y. The push cylinder 414 can push the second heat-insulating block 42 to reciprocate along the second direction Y, changing the position of the second heat-insulating block 42 in the second direction Y. When the push cylinder 414 pushes the second heat-insulating block 42 away from the base 1, the second heat-insulating block 42 moves to a position opposite to the first heat-insulating block 32 along the first direction Z. At this time, the first heat-insulating block 32 and the second heat-insulating block 42 are located directly above and directly below the battery cell 7, respectively. The first heat-insulating block 32 and the second heat-insulating block 42 can come into contact with the battery cell 7 and heat the surface of the battery cell 7 by moving closer along the first direction Z. When the push cylinder 414 pushes the second heat-insulating block 42 closer to the base 1, the second heat-insulating block 42 moves away from directly below the battery cell 7, providing space for the battery cell 7 to fall and preventing the second heat-insulating block 42 from affecting the transfer of the battery cell 7.

[0046] Preferably, both the first insulation block 32 and the second insulation block 42 include an insulation board 5 and a heating rod 6. The insulation board 5 is provided with an insulation groove 51, and the heating rod 6 is embedded in the insulation groove 51.

[0047] A heat insulation groove 51 is provided inside the heat insulation plate 5, and a heating rod 6 is embedded in the heat insulation groove 51 to increase the contact area between the heating rod 6 and the heat insulation plate 5, thereby improving the heating and heat transfer efficiency. In this embodiment, there are multiple heat insulation grooves 51, which are spaced apart along the third direction X. A heating rod 6 is embedded in each heat insulation groove 51 to ensure that the temperature is uniform throughout the heat insulation plate 5 and that the side of the battery cell 7 is heated and insulated evenly.

[0048] Preferably, the power assembly 21 includes a slide 211, a clamping cylinder 212, and a power guide rail 213. The clamping cylinder 212 and the power guide rail 213 are both fixedly connected to the base 1. The power guide rail 213 extends along the third direction X. The slide 211 is slidably mounted on the power guide rail 213 along the third direction X. The clamping cylinder 212 is drivenly connected to the slide 211. The gripper 22 is fixedly connected to the slide 211.

[0049] The clamping cylinder 212 can drive the slide 211 to slide along the third direction X on the power guide rail 213, and drive the gripper 22 to move along the third direction X via the slide 211, so that the gripper 22 fixes or releases the battery cell 7, completing the transfer operation of the battery cell 7. The slide 211 and the power guide rail 213 are slidably assembled along the third direction X. The power guide rail 213 can limit the direction of movement of the slide 211, so that the slide 211 moves smoothly, and the clamping cylinder 212 can drive the slide 211 to reciprocate along the third direction X. In this embodiment, the two sets of power components 21 have the same structure, and the two sets of power components 21 are spaced apart and symmetrical to each other along the third direction X.

[0050] Preferably, the power assembly 21 further comprises a pressing cylinder 214, a pressing guide rail 215 and a pressing plate 216, the pressing cylinder 214 and the pressing guide rail 215 are fixedly connected with the sliding seat 211, the pressing guide rail 215 extends along the first direction Z, the pressing plate 216 is slidingly assembled in the pressing guide rail 215 along the first direction Z, and the pressing cylinder 214 is in transmission connection with the pressing plate 216; the clamping jaw 22 comprises a first clamping plate 221 and a second clamping plate 222, the first clamping plate 221 is fixedly connected with the sliding seat 211, the second clamping plate 222 is fixedly connected with the first clamping plate 221, the pressing plate 216 and the second clamping plate 222 are oppositely arranged along the first direction Z, and the pressing cylinder 214 can drive the pressing plate 216 to move along the first direction Z so as to press the battery cell 7 clamped by the clamping jaw 22.

[0051] The pressing cylinder 214 and the pressing guide rail 215 are fixedly arranged on the sliding seat 211, and the sliding seat 211 can drive the pressing cylinder 214 and the pressing guide rail 215 to move along the third direction X synchronously when the sliding seat 211 moves along the third direction X.

[0052] The first clamping plate 221 and the second clamping plate 222 of the clamping jaw 22 are in L-shaped structure, the first clamping plate 221 is fixedly connected with the sliding seat 211, the first clamping plate 221 extends along the first direction Z, the second clamping plate 222 is perpendicular to the first clamping plate 221, the second clamping plate 222 is oppositely arranged with the pressing plate 216 along the first direction Z, and the pressing plate 216 can fix the battery cell 7 between the second clamping plate 222 and the pressing plate 216 when the pressing plate 216 moves along the first direction Z and approaches the second clamping plate 222, so that the battery cell 7 is stable and cannot shake during the transfer of the battery cell 7.

[0053] The utility model further provides a kind of preferred embodiment of battery production line, including transfer device, the specific structure of the transfer device is identical with the specific structure of the transfer device in any embodiment described above, which is not repeated here.

[0054] In conclusion, the utility model embodiment provides a kind of transfer device and battery production line, it is also provided with first heat preservation mechanism and second heat preservation mechanism on pedestal, when the battery cell of transfer device is exposed outside, the power component of clamping mechanism drives jaw to hold fixed battery cell, the first driving assembly of first heat preservation mechanism can drive first heat preservation block to move along first direction, the second driving assembly of second heat preservation mechanism can drive second heat preservation block to move along first direction, first heat preservation block and second heat preservation block mutually close and along first direction adhere battery cell, heating battery cell, ensure that battery cell surface is in heat preservation state, avoid battery cell temperature loss;When resume production, first heat preservation block and second heat preservation block are away from battery cell, will not affect hot press normal production, reduce the production of scrap battery cell.

[0055] The above is only the preferred embodiment of the utility model, it should be pointed out that, for ordinary skilled person in the art, without departing from the technical principle of the utility model, can make a number of improvements and substitutions, these improvements and substitutions also should be regarded as the protection range of the utility model.

Claims

1. A transfer device for transferring a cell, characterized by, The transfer device has a first direction, a second direction and a third direction intersecting with each other, and comprises: a base; a clamping mechanism comprising a power assembly and a clamping jaw, the power assembly being connected with the base, the clamping jaw being in transmission connection with the power assembly, the power assembly driving the clamping jaw to move along the third direction to clamp the battery cell; a first heat preservation mechanism comprising a first driving assembly and a first heat preservation block, the first driving assembly being fixedly connected with the base, the first driving assembly being in transmission connection with the first heat preservation block, the first driving assembly being capable of driving the first heat preservation block to move along the first direction; a second heat preservation mechanism comprising a second driving assembly and a second heat preservation block, the second driving assembly being fixedly connected with the base, the second driving assembly being in transmission connection with the second heat preservation block, the second driving assembly being capable of driving the second heat preservation block to move along the first direction, the first heat preservation block and the second heat preservation block being in contact with the battery cell when moving towards each other along the first direction.

2. The transfer device of claim 1, wherein, The first driving assembly comprises a first lifting cylinder and a first positioning plate, the first lifting cylinder being fixedly connected with the base, the first lifting cylinder being arranged along the first direction, the first lifting cylinder being in transmission connection with the first positioning plate, the first heat preservation block being fixedly connected with the first positioning plate.

3. The transfer device of claim 2, wherein, The first driving assembly further comprises a first guide rail, the first guide rail being fixedly connected with the base, the first guide rail extending along the first direction, the first positioning plate being slidingly assembled on the first guide rail along the first direction.

4. The transfer device according to any one of claims 1 to 3, characterized in that The second driving assembly comprises a second lifting cylinder and a second positioning plate, the second lifting cylinder being fixedly connected with the base, the second lifting cylinder being arranged along the first direction, the second lifting cylinder being in transmission connection with the second positioning plate, the second heat preservation block being fixedly connected with the second positioning plate.

5. The transfer device of claim 4, wherein, The second driving assembly further comprises a second guide rail, the second guide rail being fixedly connected with the base, the second guide rail extending along the first direction, the second positioning plate being slidingly assembled on the second guide rail along the first direction.

6. The transfer device of claim 5, wherein, The second driving assembly further comprises a pushing cylinder, the second positioning plate being provided with a sliding rail extending along the second direction, the second heat preservation block being slidingly assembled on the sliding rail, the pushing cylinder being in transmission connection with the second heat preservation block.

7. The transfer device of any one of claims 1-3, wherein, The first heat preservation block and the second heat preservation block each comprise a heat preservation plate and a heating rod, the heat preservation plate being provided with a heat preservation groove, the heating rod being embedded in the heat preservation groove.

8. The transfer device of any one of claims 1-3, wherein, The power assembly comprises a sliding seat, a clamping cylinder and a power guide rail, the clamping cylinder and the power guide rail each being fixedly connected with the base, the power guide rail extending along the third direction, the sliding seat being slidingly assembled on the power guide rail along the third direction, the clamping cylinder being in transmission connection with the sliding seat, the clamping jaw being fixedly connected with the sliding seat.

9. The transfer device of claim 8, wherein, The power assembly further comprises a pressing cylinder, a pressing guide rail and a pressing plate, the pressing cylinder and the pressing guide rail are fixedly connected with the sliding seat, the pressing guide rail extends along the first direction, the pressing plate is slidingly assembled on the pressing guide rail along the first direction, and the pressing cylinder is in transmission connection with the pressing plate; the clamping jaw comprises a first clamping plate and a second clamping plate, the first clamping plate is fixedly connected with the sliding seat, the second clamping plate is fixedly connected with the first clamping plate, the pressing plate and the second clamping plate are oppositely arranged along the first direction, and the pressing cylinder can drive the pressing plate to move along the first direction to press the clamping jaw to clamp the battery cell.

10. A battery production line, characterized by, The transfer device of any one of claims 1-9.

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