A two half-piece whole piece mechanism

Abstract

This utility model provides a dual-half-cell assembly mechanism, relating to the field of photovoltaic manufacturing equipment technology. The dual-half-cell assembly mechanism of this embodiment includes a frame, a drive unit, a transmission assembly, two sets of short-side assembly push rods, and two sets of long-side assembly push rods. Two battery halves are placed on the frame. The drive unit is mounted on the frame. The transmission assembly is connected to the drive unit. The two sets of short-side assembly push rods are connected to the transmission assembly and are movably mounted on the frame for linear reciprocating motion along a first axis. The two sets of long-side assembly push rods are connected to the transmission assembly and are movably mounted on the frame for linear reciprocating motion along a second axis. In this embodiment, the dual-half-cell assembly mechanism uses a single drive unit to drive the transmission assembly, which in turn drives the two sets of short-side assembly push rods and the two sets of long-side assembly push rods to move synchronously, ensuring the synchronicity of the short-side and long-side assembly push rod movements and resulting in high efficiency in half-cell assembly.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic manufacturing equipment technology, and in particular to a double half-cell whole-cell mechanism. Background Technology

[0002] In the photovoltaic manufacturing industry, laser-induced sintering (LAS) equipment places higher demands on the positioning accuracy of solar cells than other processes. One key aspect of this precision requirement is ensuring that the cells do not become misaligned before entering the LAS process. Therefore, the industry standard practice is to transfer the cells to a pre-assembly unit before LAS, and then use this unit to adjust the cells' positions along the X and Y axes until they are precisely positioned to meet the calibration requirements for subsequent LAS processes.

[0003] Currently, the cell assembly device consists of a long-side assembling unit and a short-side assembling unit. The short-side assembling unit can move along the X-axis, while the long-side assembling unit can move linearly along the Y-axis. When assembling a half-cell, both the long-side and short-side assembling units move towards the half-cell. However, the synchronization between the short-side and long-side assembling units is poor, potentially resulting in situations where the short-side assembling unit has reached its position before the long-side assembling unit has, leading to low assembling efficiency.

[0004] In view of this, a new technical solution is needed to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide a double half-piece whole-piece mechanism with good synchronization and high whole-piece efficiency.

[0006] To achieve the above objectives, the present invention employs the following technical means:

[0007] This utility model provides a double half-piece integral piece mechanism, including:

[0008] A rack on which two battery halves are placed;

[0009] The drive unit is mounted on the frame;

[0010] The transmission assembly is connected to the driving component in a transmission manner;

[0011] Two sets of short-side integral push rods are connected to the transmission assembly and are movably mounted on the frame so as to move linearly back and forth along the first axis direction under the drive of the transmission assembly.

[0012] Two sets of long-side integral push rods are connected to the transmission assembly and are movably mounted on the frame so as to move linearly back and forth along the second axis direction under the drive of the transmission assembly.

[0013] The dual-half-cell assembly mechanism can switch between a assembled state and an open state. In the assembled state, the short-side assembly push rods move closer to each other, and the long-side assembly push rods move closer to each other to assemble the two battery halves. In the open state, the short-side assembly push rods move further apart from each other, and the long-side assembly push rods move further apart from each other to separate from the two battery halves.

[0014] Optionally, the driving component includes a stepper motor, and the transmission assembly includes a first transmission mechanism and a second transmission mechanism, wherein the stepper motor is connected to the first transmission mechanism, and the first transmission mechanism is connected to the second transmission mechanism.

[0015] Optionally, the second transmission mechanism includes a cam mechanism, which includes two cams, two follower cam plates, and a transmission shaft. The two cams are fixedly sleeved on the transmission shaft. Each follower cam plate is provided with a roller, and each roller abuts against the cam to drive the follower cam plate to move intermittently in a straight line along the first axis.

[0016] Optionally, a slot is formed on the end face of the cam, and the roller is disposed in the slot on the end face of the cam.

[0017] Optionally, the first transmission mechanism further includes a transmission wheel, and the transmission shaft is fixedly mounted on the frame via the transmission wheel.

[0018] Optionally, each group of short-side integral push rods includes two short-side integral push rods, which are distributed on both sides of the battery half-cell along the first axis direction; each group of long-side integral push rods includes two long-side integral push rods, which are distributed on both sides of the battery half-cell along the second axis direction.

[0019] Optionally, the cam mechanism further includes a follower bearing, which is connected to two long-side integral push rods in the same group; each follower cam plate has two oblique slots, which are gradually moved closer to each other from the inside to the outside along the first axis, and the follower bearing passes through the oblique slots so that the short-side integral push rod and the long-side integral push rod move together inward or outward.

[0020] Optionally, the first transmission mechanism includes a belt drive mechanism, which includes a synchronous belt and a drive wheel. The synchronous belt is sleeved on the output shaft of the stepper motor and the drive wheel. The drive wheel is fixedly sleeved on the drive shaft, which is arranged along the first axis and located below the driving member.

[0021] Optionally, the long-side integral push rod includes a mounting plate and two guide shafts, with the two guide shafts disposed on the mounting plate.

[0022] Optionally, the frame includes a base and a mounting bracket, the mounting bracket being disposed on the base.

[0023] Compared with the prior art, this utility model brings the following technical effects:

[0024] The dual half-piece integral mechanism in this embodiment comprises a drive component, a transmission assembly, two sets of short-side integral push rods, and two sets of long-side integral push rods. The drive component is connected to the transmission assembly, which in turn is connected to both sets of short-side and long-side integral push rods. Thus, the same drive component drives the transmission assembly, which in turn drives the two sets of short-side and long-side integral push rods to move synchronously, ensuring the synchronicity of their movements and resulting in high efficiency for both half-piece and integral piece operation. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 The following are schematic diagrams illustrating the structure of the double half-piece integral mechanism according to some embodiments of the present invention;

[0027] Figure 2 It shows Figure 1 A magnified view of part A;

[0028] Figure 3 The following are schematic diagrams illustrating the structure of the double half-piece integral mechanism according to some embodiments of the present invention;

[0029] Figure 4 This diagram shows a structural schematic from one perspective of a dual-half-piece integral mechanism according to some embodiments of the present invention.

[0030] Figure 5 It shows Figure 4 A magnified view of part B;

[0031] Figure 6 This invention provides a schematic diagram of the structure of the double half-piece integral mechanism in the open state according to some embodiments of the present invention.

[0032] Figure 7 It shows Figure 6 A magnified view of part C.

[0033] Explanation of key component symbols:

[0034] 100 - Double half-cell whole cell mechanism; 200 - Battery half-cell;

[0035] 10-Frame; 11-Fixed frame; 12-Base; 20-Drive component; 30-Transmission assembly; 31-Synchronous belt; 32-Drive shaft; 33-Drive wheel; 34-Cam; 35-Follower cam plate; 351-Roller mounting bracket; 352-Roller; 353-Slanted slot; 36-Follower bearing;

[0036] 40 - Short-side solid push rod;

[0037] 50, 51, 52 - Long side integral push rod; 53 - Mounting plate; 54 - Guide shaft;

[0038] X - First axis; Y - Second axis. Detailed Implementation

[0039] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0040] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other. The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0041] Please see Figures 1-7 This utility model provides a dual-half-cell assembly mechanism 100 for simultaneously assembling two battery half-cells 200 to adjust their angles, thereby meeting the subsequent requirements of the laser sintering process. Typically, the battery half-cell 200 is rectangular. The shorter side of the rectangle is the shorter side of the battery half-cell 200, and the longer side of the rectangle is the longer side of the battery half-cell 200.

[0042] Please see Figure 1 In this utility model, the double half-piece whole piece mechanism 100 includes a frame 10, a drive component 20, a transmission component 30, two sets of short-side whole piece push rods 40 and two sets of long-side whole piece push rods 50.

[0043] The drive component 20 is connected to the transmission assembly 30. The transmission assembly 30 is connected to two sets of short-side integral push rods 40 and two sets of long-side integral push rods 50 respectively, so as to drive the two sets of short-side integral push rods 40 and the two sets of long-side integral push rods 50 to switch between the open state and the integral state.

[0044] When in the open state, the short-side push rod 40 separates from the short side of the battery half-cell 200, and the long-side push rod 50 separates from the long side of the battery half-cell 200; when in the whole-cell state, the short-side push rod 40 abuts against the short side of the battery half-cell 200, and the long-side push rod 50 simultaneously abuts against the long side of the battery half-cell 200, so as to whole-cell the battery half-cell 200.

[0045] Two sets of short-side integral push rods 40 are movably mounted on the frame 10 and can reciprocate linearly along the direction of the first axis X. Two sets of long-side integral push rods 50 are movably mounted on the frame 10 and can reciprocate linearly along the direction of the second axis Y. The first axis X and the second axis Y are perpendicular to each other. Specifically, in conjunction with... Figure 2 The first axis X extends in the left-right direction, and the second axis Y extends in the up-down direction.

[0046] The dual half-piece whole-piece mechanism 100 of this embodiment includes a driving component 20, a transmission assembly 30, two sets of short-side whole-piece push rods 40, and two sets of long-side whole-piece push rods 50. The driving component 20 is connected to the transmission assembly 30, and the transmission assembly 30 is connected to both the two sets of short-side whole-piece push rods 40 and the two sets of long-side whole-piece push rods 50. Thus, the same driving component 20 drives the transmission assembly 30 to synchronously move the two sets of short-side whole-piece push rods 40 and the two sets of long-side whole-piece push rods 50, ensuring the synchronicity of their movements and resulting in high efficiency for both half-piece and whole-piece operations.

[0047] The frame 10 includes a base 12 and a mounting bracket 11, with the mounting bracket 11 disposed on the base 12. Two battery halves 200 are spaced apart from each other along the first axis X direction on the top surface of the mounting bracket 11. Each set of short-side whole-cell push rods 40 includes two short-side whole-cell push rods 40, which are located on both sides of the two battery halves 200 along the first axis X direction. Each set of long-side whole-cell push rods 50 includes two long-side whole-cell push rods 51 and 52, which are located on both sides of the two battery halves 200 along the second axis Y direction.

[0048] The drive unit 20 is disposed on the top surface of the fixing frame 11 and located on one side of the two battery halves 200. A motor mounting seat is provided on the fixing frame 11, and the drive unit 20 is mounted on the base 12 through the motor mounting seat.

[0049] The driving component 20 is a stepper motor, which is located on one side of the two battery halves 200 in the first axis X direction and between the two battery halves 200 in the second axis Y direction. The output shaft of the stepper motor is set outward, that is, the output shaft of the stepper motor is set away from the battery half 200.

[0050] In one specific embodiment, the transmission assembly 30 includes a first transmission mechanism and a second transmission mechanism, connected to each other. The first transmission mechanism converts the pivoting motion output by the stepper motor into its own pivoting motion, and the second transmission mechanism converts the pivoting motion into a linear reciprocating motion along the first axis X and the second axis Y. The linear reciprocating motion along the first axis X and the linear reciprocating motion along the second axis Y are synchronous. Specifically, the synchronous motion occurs when the linear reciprocating motion of the second transmission mechanism along the first axis X drives the short-side integral push rod 40 to complete its assembly, and simultaneously when the linear reciprocating motion along the second axis Y drives the long-side integral push rod 50 to complete its assembly. Conversely, when the linear reciprocating motion of the second transmission mechanism along the first axis X causes the short-side integral push rod 40 to separate, the linear reciprocating motion along the second axis Y causes the long-side integral push rod 50 to separate.

[0051] In this embodiment, the transmission assembly 30 adopts a first transmission mechanism and a second transmission mechanism. The first transmission mechanism is used to convert the pivoting motion of the output shaft of the stepper motor into the pivoting motion of the first transmission mechanism. The second transmission mechanism is used to convert the pivoting motion of the first transmission mechanism into a linear reciprocating motion in the first axis X direction and a reciprocating motion in the second axis Y direction. This can drive the short side push rod 40 to move along the first axis X direction and drive the long side push rod 50 to move along the second axis Y direction.

[0052] Optionally, the mounting bracket 11 is provided with guide rails (not shown) extending along the first axis X and the second axis Y. The short-side integral push rod 40 is mounted on the guide rail extending along the first axis X, and the long-side integral push rod 50 is mounted on the guide rail extending along the second axis Y, so as to improve the movement accuracy of the long-side integral push rod 50 on the second axis Y. Of course, the guide rail can also be replaced with a guide shaft.

[0053] In one specific embodiment, the first transmission mechanism includes a belt transmission mechanism, and the second transmission mechanism includes a cam mechanism. The belt transmission mechanism includes a synchronous belt 31 and a drive pulley 33, and the cam mechanism includes a drive shaft 32, a cam 34, and a follower cam plate 35.

[0054] Of course, the first transmission mechanism is not limited to a belt transmission mechanism; it can also be a gear transmission mechanism or a chain transmission mechanism. The second transmission mechanism is not limited to a cam mechanism; it can also be a rack and pinion mechanism or a crank-slider mechanism.

[0055] The drive shaft 32 is positioned along the first axis X direction and is located directly below the stepper motor. The drive shaft 32 and the stepper motor are spaced apart from each other. A synchronous belt 31 is respectively fitted onto the output shaft of the stepper motor and the drive shaft 32, so that the stepper motor drives the drive shaft 32 to rotate synchronously. Specifically, when the output shaft of the stepper motor rotates clockwise, the drive shaft 32 rotates clockwise under the drive of the synchronous belt 31. When the output shaft of the stepper motor rotates counterclockwise, the drive shaft 32 rotates counterclockwise under the drive of the synchronous belt 31. The mounting bracket 11 is mounted on the stepper motor via a mounting bearing (not shown).

[0056] Optionally, a drive wheel 33 is provided on the fixed frame 11. The drive wheel 33 is located between the synchronous belt 31 and the drive shaft 32. The drive wheel 33 can reduce wear between the drive shaft 32 and the synchronous belt 31, thereby improving the service life of the drive shaft 32 and the synchronous belt 31.

[0057] Furthermore, the cam mechanism includes two cams 34, which are fixedly sleeved on the drive shaft 32 and located on opposite sides of the fixed frame 11. Thus, the drive shaft 32 is connected to the cams 34 to convert the pivoting of the drive shaft 32 into the intermittent linear reciprocating motion of the cams 34.

[0058] Please see Figure 1 and Figure 2 The cam drive mechanism includes two follower cam plates 35. Each cam 34 has a slot formed on its end face facing the follower cam plate 35. A roller 352 is provided on the follower cam plate 35, and the roller 352 abuts against the end face of the cam 34 and also against the groove wall formed by the end face of the follower cam plate 35. That is, in this embodiment, the cam 34 is a slotted cam. The contact between the roller 352 and the end face of the cam 34 allows for a faster response speed.

[0059] Of course, the roller 352 and the cam 34 can also be set to be spaced apart from each other.

[0060] Specifically, the cam 34 rotates synchronously with the drive shaft 32, and the roller 352 also rotates with the cam 34. When the roller 352 falls into the slot of the cam 34, it drives the follower cam plate 35 to move outward along the first axis X. When the roller 352 leaves the slot of the cam 34, it drives the follower cam plate 35 to move inward along the first axis X. As the cam 34 continuously pivots, the roller 352 also continuously cycles between entering the slot from the non-slotted position on the end face of the cam 34 and leaving the slot to the non-slotted position on the end face of the cam 34. In this way, the roller 352 pushes the follower cam plate 35 to perform intermittent linear reciprocating motion in the first axis X.

[0061] It should be noted that, in the first axis X direction, the two follower cam plates 35 are located on both sides of the battery half 200. The follower cam plates 35 are located inside the cam 34, so that the roller 352 can abut against the cam 34 and the slot of the cam 34. In addition, the roller 352 is configured to abut against the end face of the cam 34, that is, there is a certain pressure between the roller 352 and the cam 34, so that the roller 352 can abut against both the groove wall of the slot of the cam 34 and the end face of the cam 34. The shape, depth and position of the slots of the two slotted cams are consistent, and they are arranged opposite to the fixed frame 11, thereby ensuring high synchronization of the cam 34 transmission.

[0062] The follower cam plate 35 is further provided with a roller mounting bracket 351, and the roller 352 is mounted on the follower cam plate 35 via the roller mounting bracket 351. The roller 352 can pivot on the roller mounting bracket 351. For example, the roller mounting bracket 351 is provided with a rotating shaft, and the roller 352 is rotatably mounted on the rotating shaft.

[0063] In an alternative embodiment, the cam mechanism is not limited to using cam 34; instead, it employs a cam with a guide channel. Specifically, the guide channel is formed on the sidewall of the cam, and the guide not only surrounds the peripheral wall of cam 34 but also undulates along the axial direction of cam 34. A roller 352 is provided on the follower cam plate 35, rotatably disposed within the guide channel, and undergoes intermittent synchronous linear reciprocating motion in the first axis X direction due to the undulation of the guide channel. This achieves intermittent linear reciprocating motion of the follower cam plate 35.

[0064] In another alternative embodiment, the cam mechanism employs a protruding cam. Specifically, a protrusion is provided on the end face of the protruding cam facing the follower cam plate 35, and a roller 352 is fixedly provided on the follower cam plate 35, with the roller 352 abutting against the protrusion. When the cam rotates to the point where the protrusion contacts the roller 352, the protrusion pushes the roller 352 to move outward along its first axis X, thereby causing the roller 352 to drive the follower cam plate 35 to move outward. When the cam moves to the point where the roller 352 leaves the protrusion, the roller 352 moves inward, thereby causing the roller 352 to drive the cam 34 to move inward.

[0065] In the first axis X direction, all short-side integral push rods 40 are located inside the follower cam plate 35. Each group has one short-side integral push rod 40 fixedly connected to the follower cam plate 35 so that the follower cam plate 35 and the short-side integral push rod 40 move synchronously. That is, one follower cam plate 35 is fixedly connected to two short-side integral push rods 40.

[0066] See Figure 4 and Figure 6The dual half-cell assembly mechanism 100 has both an open state and an assembled state. Specifically, when switching from the open state to the assembled state, each roller 352 re-enters the slot of the cam 34, and each roller 352 drives the follower cam plate 35 to move inward along the first axis X. Each follower cam plate 35 then drives the short-side assembly push rod 40 to move inward synchronously. Thus, both follower cam plates 35 drive both sets of short-side assembly push rods 40 to move inward synchronously, thereby assembling the short-side assembly push rods 40 into the assembled half-cell.

[0067] When switching from the fully assembled state to the open state, each roller 352 disengages from the slot of the cam 34. Each roller 352 drives the follower cam plate 35 to move outward along the first axis X. Each follower cam plate 35 then drives the short-side fully assembled push rod 40 to move outward synchronously. Thus, both follower cam plates 35 drive both sets of short-side fully assembled push rods 40 to move outward synchronously, thereby separating the short-side fully assembled push rods 40 from the battery half 200.

[0068] Please see Figure 5 and Figure 7 The cam transmission mechanism includes two follower cam plates 35, each with a pair of inclined slots 353, both facing a specific direction. The cam transmission mechanism also includes two sets of follower bearings 36, each set comprising two bearings. The two follower bearings 36 pass through the two inclined slots 353 of the same follower cam plate 35. Furthermore, each follower cam plate 35 is connected to two long-side integral push rods 50, each with two follower bearings 36 at both ends.

[0069] The inclined slot 353 can convert linear reciprocating motion along the first axis X into linear reciprocating motion along the second axis Y.

[0070] The inclined slot 353 of the follower cam plate 35 is gradually positioned closer to each other from the inside to the outside along the first axis X. Specifically, see... Figure 5 The follower bearing 36 is located at the first end of the inclined slot 353. See also Figure 7 The follower bearing 36 is located at the second end of the inclined slot 353.

[0071] Specifically, when switching from the open state to the full-piece state, the follower cam plate 35 drives the short-side full-piece push rod 40 to move towards the short side of the battery half-piece 200. The follower bearing 36, pushed by the groove wall of the inclined slot 353, moves from the first end of the inclined slot 353 to the second end of the inclined slot 353, and drives two of the long-side full-piece push rods 51 in one group to move downwards. The other follower bearing 36, under the action of the groove wall of the inclined slot 353, moves from the first position of the inclined slot 353 to the second position of the inclined slot 353, and drives two of the long-side full-piece push rods 52 in another group to move upwards.

[0072] Thus, the downward-moving long-side push rod 51 and the upward-moving long-side push rod 52 together complete the assembly of the battery half-cell 200.

[0073] Correspondingly, when switching from the full-piece state to the open state, the follower cam plate 35 drives the short-side full-piece push rod 40 away from the short side of the battery half-piece 200. Driven by the groove wall of the inclined slot 353, the follower bearing 36 moves from the second end of the inclined slot 353 to the first end, driving one set of two long-side full-piece push rods 51 upwards. The other follower bearing 36, under the action of the groove wall of the inclined slot 353, moves from the second position of the inclined slot 353 to the first position, driving another set of two long-side full-piece push rods 52 downwards. Thus, the downward-moving long-side full-piece push rod 1 and the upward-moving long-side full-piece push rod 52 separate from the battery half-piece 200.

[0074] In this embodiment, by setting a transmission cam 34 plate, on the one hand, the cam 34 plate moves along the first axis X under the drive of the cam 34, so as to push the short side integral push rod 40 to move synchronously along the X axis. On the other hand, the same transmission cam 34 plate is provided with a pair of inclined slots 353 that gradually approach each other along the first axis X, and the follower bearings 36 pass through the inclined slots 353. The intermittent linear reciprocating motion in the first axis X direction can be converted into the intermittent linear reciprocating motion of the long side integral push rod 50 in the second axis Y direction through the inclined slots 353. In this way, by using the transmission cam 34 plate as a single component, it is possible to push the short side integral push rod 40 to move in the first axis X direction and also move with the long side integral push rod 50 in the second axis Y direction, so as to realize the switching between the double-sided integral mechanism in the integral state and the open state. The structure is simple, reliable and highly practical.

[0075] Please see Figure 1 and Figure 3 In one specific embodiment, the long-side integral push rod 50 includes a mounting plate 53 and two guide shafts 54. The two guide shafts 54 are disposed on the mounting plate 53.

[0076] Mounting plate 53 is used to transmit power to guide shaft 54, which is used to directly contact battery half 200.

[0077] Understandably, the mounting plate 53 is slightly lower or slightly higher than the battery half-cell 200. That is, there is a height difference between the mounting plate 53 and the battery half-cell 200, so even when the long-side full-cell push rod 50 is switched to the full-cell state, the mounting plate 53 and the battery half-cell still do not contact each other. The guide shaft 54 ​​is at the same height as the battery half-cell 200, and when switched to the full-cell state, the guide shaft 54 ​​and the battery half-cell still do not contact each other.

[0078] Furthermore, a flexible sleeve is fitted onto the guide shaft 54. Specifically, the flexible sleeve can be a rubber sleeve. In this way, the flexible sleeve, through its own cushioning effect, can reduce the stress generated by the collision of the battery half-cell 200 with the guide shaft 54, ensuring that the battery half-cell 200 is not damaged during the whole-cell process.

[0079] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom still fall within the protection scope of this invention.

Claims

1. A double-half-piece integral mechanism, characterized in that, include: A rack on which two battery halves are placed; The drive unit is mounted on the frame; The transmission assembly is connected to the driving component in a transmission manner; Two sets of short-side integral push rods are connected to the transmission assembly and are movably mounted on the frame so as to move linearly back and forth along the first axis direction under the drive of the transmission assembly. Two sets of long-side integral push rods are connected to the transmission assembly and are movably mounted on the frame so as to move linearly back and forth along the second axis direction under the drive of the transmission assembly. The dual-half-cell assembly mechanism can switch between a assembled state and an open state. In the assembled state, the short-side assembly push rods move closer to each other, and the long-side assembly push rods move closer to each other to assemble the two battery halves. In the open state, the short-side assembly push rods move further apart from each other, and the long-side assembly push rods move further apart from each other to separate from the two battery halves.

2. The double half-piece integral piece mechanism according to claim 1, characterized in that, The driving component includes a stepper motor, and the transmission assembly includes a first transmission mechanism and a second transmission mechanism. The stepper motor is connected to the first transmission mechanism, and the first transmission mechanism is connected to the second transmission mechanism.

3. The double half-piece integral piece mechanism according to claim 2, characterized in that, The second transmission mechanism includes a cam mechanism, which includes two cams, two follower cam plates, and a transmission shaft. The two cams are fixedly sleeved on the transmission shaft. Each follower cam plate is provided with a roller, and each roller abuts against the cam to drive the follower cam plate to move intermittently in a straight line along the first axis.

4. The double half-piece integral piece mechanism according to claim 3, characterized in that, The end face of the cam has a slot, and the roller is disposed in the slot on the end face of the cam.

5. The double half-piece integral piece mechanism according to claim 3, characterized in that, The first transmission mechanism further includes a transmission wheel, and the transmission shaft is fixedly mounted on the frame via the transmission wheel.

6. The double half-piece integral piece mechanism according to claim 3, characterized in that, Each group of short-side integral push rods includes two short-side integral push rods, which are distributed on both sides of the battery half-cell along the first axis direction; each group of long-side integral push rods includes two long-side integral push rods, which are distributed on both sides of the battery half-cell along the second axis direction.

7. The double half-piece integral piece mechanism according to claim 6, characterized in that, The cam mechanism also includes a follower bearing, which is connected to two long-side integral push rods in the same group; each follower cam plate has two oblique slots, which are arranged to gradually approach each other from the inside to the outside along the first axis, and the follower bearing passes through the oblique slots so that the short-side integral push rod and the long-side integral push rod move together inward or outward.

8. The double-half-piece integral mechanism according to any one of claims 2 to 7, characterized in that, The first transmission mechanism includes a belt drive mechanism, which includes a synchronous belt and a drive wheel. The synchronous belt is sleeved on the output shaft of the stepper motor and the drive wheel. The drive wheel is fixedly sleeved on the drive shaft, which is arranged along the first axis and located below the driving member.

9. The double half-piece integral piece mechanism according to claim 1, characterized in that, The long-side integral push rod includes a mounting plate and two guide shafts, with the two guide shafts mounted on the mounting plate.

10. The double half-piece integral piece mechanism according to claim 1, characterized in that, The frame includes a base and a mounting bracket, with the mounting bracket mounted on the base.

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