Carrying mechanism and battery cell stacking equipment

Abstract

The utility model provides a carrying mechanism and battery cell stacking equipment. The carrying mechanism comprises a mounting plate, a first driving part, a first clamping assembly and a second clamping assembly. The first driving part is arranged on the mounting plate; the second clamping assembly and the first clamping assembly are the same in structure, the first clamping assembly comprises a sliding connecting part and a clamping part, and the sliding connecting part of the first clamping assembly and the sliding connecting part of the second clamping assembly are both horizontally connected to the mounting plate in a sliding mode. And the first driving part drives the clamping parts of the first clamping assembly and the second clamping assembly to be close to each other or separated from each other so as to clamp or loosen the battery cell. The clamping part is connected to the sliding connection part, a clamping block and a first spring are arranged on the clamping part, the clamping block is connected to the clamping part in a sliding mode, the upper end of the first spring abuts against the bottom of the clamping block, and the lower end of the first spring abuts against the clamping part. And a bearing block is arranged at the lower end of the clamping part. Compared with an existing carrying mechanism, the carrying mechanism has the advantages that the battery cell clamping step is simpler, and the battery cell carrying efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of lithium battery production equipment, and specifically to a transport mechanism and battery cell stacking equipment. Background Art

[0002] In the process of assembling battery cells into battery cell modules, the battery cells need to be processed in multiple steps, and a transport mechanism is required to transport the battery cells from one step to another.

[0003] Existing handling mechanisms use two clamps that can move closer or further apart to clamp the battery cells. To prevent the battery cells from falling out, the lower ends of the clamps are equipped with supporting members configured to support the battery cells. The existing handling mechanism clamps the battery cells as follows: First, the two clamps are controlled to move to either side of the battery cell, with the supporting members at their lower ends positioned below the battery cell; then, the two clamps are controlled to rise so that the supporting members at their lower ends support the battery cell; finally, the two clamps are controlled to move closer together to clamp the battery cell. The existing handling mechanism's cumbersome steps for clamping the battery cells result in low handling efficiency. Utility Model Content

[0004] In order to solve the above technical problems, the present application provides a transport mechanism, which adopts the following technical solutions:

[0005] A transport mechanism includes a mounting plate, a first driving portion, a first clamping assembly, and a second clamping assembly, wherein:

[0006] The first driving part is arranged on the mounting plate;

[0007] The second clamping assembly has the same structure as the first clamping assembly and is symmetrically arranged. The first clamping assembly includes a sliding connection portion and a clamping portion. The sliding connection portions of the first clamping assembly and the second clamping assembly are both horizontally slidably connected to the mounting plate. The first driving portion is configured to drive the clamping portions of the first clamping assembly and the second clamping assembly to move closer to or apart from each other to clamp or release the battery cell.

[0008] The upper end of the clamping portion is connected to the sliding connection portion, and a clamping block and a first spring are provided on each clamping portion. The clamping block is vertically slidably connected to the corresponding clamping portion. One side surface of the clamping block protrudes from the clamping portion to form a clamping surface against the battery cell. The upper end of the first spring abuts against the bottom of the clamping block, and the lower end of the first spring abuts against the clamping portion.

[0009] The lower ends of the clamping parts are provided with supporting blocks for carrying the battery cores.

[0010] The handling mechanism of the present application can directly control the first and second clamping assemblies to clamp the battery cell from both sides, eliminating the need to control the first and second clamping assemblies to rise first. This allows the support block to support the battery cell before controlling the first and second clamping assemblies to clamp the battery cell from both sides. Therefore, compared to existing handling mechanisms, the handling mechanism of the present application simplifies the steps for clamping the battery cell, thereby improving the efficiency of handling the battery cell.

[0011] In some embodiments, a mounting groove is provided on the clamping portion, and a first slide rail is provided in the mounting groove along the vertical direction; the clamping block is slidably connected to the first slide rail and is located in the mounting groove; the lower end of the first spring rests on the bottom of the mounting groove.

[0012] A sliding guide is provided for the clamping block, and an installation space is provided for the first spring.

[0013] In some embodiments, the transport mechanism also includes a base, a lifting drive member and a lifting guide rod, wherein: the lifting drive member is arranged on the base, the driving end of the lifting drive member is connected to the mounting plate, and the lifting drive member is configured to drive the mounting plate to lift and lower; the lifting guide rod slides in the vertical direction and is connected to the base, and the lower end of the lifting guide rod is fixedly connected to the mounting plate.

[0014] By providing a lifting drive, the first and second clamping assemblies can be driven to lift and lower, allowing the first and second clamping assemblies to lift the clamped battery cells upward, freeing the battery cells from the supporting surface. Consequently, the battery cells descend relative to the first and second clamping assemblies under the action of gravity and are ultimately supported by the supporting blocks at the lower ends of the first and second clamping assemblies. The lifting guide rods are provided to guide the lifting of the first and second clamping assemblies.

[0015] In some embodiments, the first driving part includes a rotary driving member, a turntable, a first guide wheel and a second guide wheel, wherein: the rotary driving member is hinged on the mounting plate, the turntable is rotatably mounted on the mounting plate and connected to the driving end of the rotary driving member, and the turntable is located between the sliding connection part of the first clamping assembly and the sliding connection part of the second clamping assembly; an arc-shaped first guide groove and an arc-shaped second guide groove are provided at the bottom of the turntable, the first guide wheel is provided on the sliding connection part of the first clamping assembly and is located in the first guide groove, and the second guide wheel is provided on the sliding connection part of the second clamping assembly and is located in the second guide groove; the rotary driving member is configured to drive the turntable to rotate, and when the turntable rotates, it pushes the first guide wheel and the second guide wheel to slide in opposite directions along the first guide groove and the second guide groove, so as to drive the first clamping assembly and the second clamping assembly to move closer to or separate from each other.

[0016] A first driving part with a simple structure and stable driving is provided, which drives the turntable to rotate by a rotating driving member to push the first guide wheel and the second guide wheel to slide in opposite directions along the first guide groove and the second guide groove, thereby driving the first clamping assembly and the second clamping assembly to move closer to or separate from each other.

[0017] In some embodiments, the first guide groove includes: a first self-locking section located on the first side of the rotation center of the turntable; a second self-locking section located on the third side of the rotation center of the turntable, and the second self-locking section is connected to the first self-locking section via the first distance adjustment section; the second guide groove includes: a third self-locking section located on the second side of the rotation center of the turntable, and the second side is opposite to the first side; a fourth self-locking section located on the fourth side of the rotation center of the turntable, and the fourth self-locking section is connected to the third self-locking section via the second distance adjustment section, and the fourth side is opposite to the third side; the distance between the first self-locking section and the third self-locking section is smaller than the distance between the second self-locking section and the fourth self-locking section; when the first guide wheel slides to the first self-locking section, the second guide wheel slides to the third self-locking section, and the first clamping assembly and the second clamping assembly move closer; when the first guide wheel slides to the second self-locking section, the second guide wheel slides to the fourth self-locking section, and the first clamping assembly and the second clamping assembly are separated.

[0018] By setting the first guide groove and the second guide groove, when the first guide wheel and the second guide wheel slide in opposite directions along the first guide groove and the second guide groove to their positions, they are respectively locked in the first self-locking section and the third self-locking section, or locked in the second self-locking section and the fourth self-locking section, so that the first clamping assembly and the second clamping assembly can be maintained in a close state or a separated state.

[0019] In some embodiments, the rotary driving member is a cylinder, a cylinder body of the cylinder is hinged on the mounting plate, and a telescopic rod of the cylinder is hinged on the turntable.

[0020] The cylinder can realize rapid driving of the turntable, and the cylinder is light in weight and low in energy consumption, which can reduce the equipment cost of the present application.

[0021] In some embodiments, a second slide rail is arranged in a horizontal direction on the mounting plate, and the sliding connection portion includes a first slider and a second slider that are slidably connected to the second slide rail side by side along the length direction of the second slide rail, wherein the second slider is located on the outside of the first slider, the upper end of the clamping portion is connected to the second slider, and the driving end of the first driving portion is connected to the first slider; the first clamping assembly also includes an elastic pressing member, which is configured to elastically press the second slider against the first slider.

[0022] The cooperation of the first and second sliders and the elastic pressure member cushions the squeezing force of the clamping portion on the battery cell, preventing damage to the battery cell when rigidly clamped. Specifically, when the first driving portion drives the first slider inward, the elastic pressure member presses the second slider inward, causing the second slider to slide with the first slider, thereby driving the clamping portion to elastically clamp the battery cell. When the first driving portion drives the first slider outward, the first slider pushes the second slider outward to slide synchronously, causing the clamping portion to release the battery cell.

[0023] In some embodiments, the elastic pressure member includes a limiting rod and a second spring, wherein: the first end of the limiting rod is fixedly connected to the first slider, the limiting rod passes through the second slider in the horizontal direction, and the second end of the limiting rod is located on the outside of the second slider; the second spring is sleeved on the limiting rod, the first end of the second spring rests on the second slider, the second end of the second spring rests on the second end of the limiting rod, and the second spring elastically presses the second slider against the first slider.

[0024] An elastic pressing member with a simple structure is provided, which elastically presses the second sliding block against the first sliding block through a second spring.

[0025] In some embodiments, the transport mechanism further includes a moving portion, the base is mounted on a movable component of the moving portion, and the moving portion is configured to drive the base to slide horizontally or move in multiple axes.

[0026] By providing the moving portion, the first clamping assembly and the second clamping assembly can move the clamped workpiece to a target position.

[0027] The present application also provides a battery cell stacking device, which includes a feeding table, a stacking mechanism and any of the above-mentioned conveying mechanisms, wherein: the feeding table is configured to cache battery cells to be stacked; the conveying mechanism is configured to clamp the battery cells from the feeding table and convey the clamped battery cells to the stacking mechanism; the stacking mechanism is configured to stack a predetermined number of battery cells conveyed by the conveying mechanism into a battery cell module.

[0028] Through the cooperation of the feeding table, stacking mechanism and conveying mechanism, the battery cell stacking equipment of the present application realizes the automatic stacking and forming of battery cell modules and improves the stacking efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a structural diagram of a battery cell transport mechanism according to one embodiment of the present application;

[0030] Figure 2 A bottom view of the mounting plate, the first driving unit and other components in an embodiment of the present application;

[0031] Figure 3 This is a schematic structural diagram of the first clamping assembly in an embodiment of the present application;

[0032] Figure 4 This is a structural schematic diagram of a battery cell transport mechanism according to another embodiment of the present application;

[0033] Figure 5 Schematic diagram of the structure of the battery cell stacking device in an embodiment of the present application.

[0034] Figures 1 to 5 Included are:

[0035] Transport mechanism 10:

[0036] Mounting plate 1;

[0037] First driving unit 2: rotary driving member 21, turntable 22, first guide wheel 23, second guide wheel 24, first guide groove 25, second guide groove 26, first self-locking section 251, second self-locking section 252, first distance adjustment section 253, third self-locking section 261, fourth self-locking section 262, second distance adjustment section 263;

[0038] First clamping assembly 3: sliding connection portion 31, clamping portion 32, clamping block 33, first spring 34, supporting block 35, first slide rail 36, elastic pressing member 37, first slider 311, second slider 312, limiting rod 371, second spring 372;

[0039] A second clamping assembly 4;

[0040] Base 5;

[0041] Lifting drive member 6;

[0042] Lifting guide rod 7;

[0043] Second slide rail 8;

[0044] Feeding table 20, stacking mechanism 30;

[0045] Battery cell 100. DETAILED DESCRIPTION

[0046] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0047] Figures 1 to 3 The figure shows a cell transport mechanism in one embodiment of the present application. Figure 4 FIG. 1 shows a cell transport mechanism in another embodiment of the present application. Figures 1 to 4 As shown, the transport mechanism in the embodiment of the present application includes a mounting plate 1, a first driving portion 2, a first clamping assembly 3 and a second clamping assembly 4, wherein:

[0048] The first driving part 2 is provided on the mounting plate 1 .

[0049] The second clamping assembly 4 has the same structure as the first clamping assembly 3 and is symmetrically arranged. Taking the first clamping assembly as an example, it includes a sliding connection portion 31 and a clamping portion 32. The sliding connection portions 31 of the first clamping assembly 3 and the second clamping assembly 4 are both horizontally slidably connected to the mounting plate 1. The first driving unit 2 is configured to drive the clamping portions 32 of the first clamping assembly 3 and the second clamping assembly 4 to move toward or away from each other to clamp or release the battery cell.

[0050] The upper end of the clamping portion 32 is connected to the sliding connection portion 31, and a clamping block 33 and a first spring 34 are provided on the clamping portion 32. The clamping block 33 is connected to the corresponding clamping portion 32 along the vertical sliding direction. One side surface of the clamping block 33 protrudes from the clamping portion 32 to form a clamping surface against the battery cell. The upper end of the first spring 34 abuts against the bottom of the clamping block 33, and the lower end of the first spring 34 abuts against the clamping portion 32.

[0051] The lower end of each clamping portion 32 is provided with a supporting block 35 for supporting the battery cell.

[0052] The process of the transport mechanism gripping the battery cell in the embodiment of the present application is as follows:

[0053] First, the first clamping assembly 3 and the second clamping assembly 4 are controlled to move to both sides of the battery cell, and the supporting blocks 35 at the lower ends of the first clamping assembly 3 and the second clamping assembly 4 are both located below the battery cell.

[0054] The first clamping assembly 3 and the second clamping assembly 4 are controlled to approach each other until the clamping blocks 33 on the first clamping assembly 3 and the second clamping assembly 4 clamp the battery cell from both sides.

[0055] The battery cell clamped by the clamping block 33 is controlled to detach from the supporting surface where the battery cell is located. Since the clamping block 33 is slidably connected to the side wall of the clamping portion 32, the battery cell descends relative to the first clamping assembly 3 and the second clamping assembly 4 under the action of gravity and is finally supported by the supporting block 35 at the lower end of the first clamping assembly 3 and the second clamping assembly 4.

[0056] As can be seen, the handling mechanism of the present application can directly control the first clamping assembly 3 and the second clamping assembly 4 to clamp the battery cell from both sides, eliminating the need to control the first clamping assembly 3 and the second clamping assembly 4 to rise first, so that the support block supports the battery cell before controlling the first clamping assembly 3 and the second clamping assembly 4 to clamp the battery cell from both sides. Therefore, compared with existing handling mechanisms, the handling mechanism of the present application simplifies the steps for clamping the battery cell, thereby improving the efficiency of handling the battery cell.

[0057] Optionally, a mounting groove is provided on the clamping portion 32, and a first slide rail 36 is provided in the mounting groove along the vertical direction. The clamping block 33 is slidably connected to the first slide rail 36 and is located in the mounting groove. The lower end of the first spring 34 abuts against the bottom of the mounting groove.

[0058] The first slide rail 36 provides a sliding guide for the clamping block 33 , and the mounting groove provides an installation space for the first spring 34 , so that the first spring 34 can elastically abut between the clamping block 33 and the clamping portion 32 .

[0059] like Figure 1 and Figure 2 As shown, optionally, the first driving portion 2 includes a rotary driving member 21, a turntable 22, a first guide wheel 23, and a second guide wheel 24, wherein: the rotary driving member 21 is hinged on the mounting plate 1, the turntable 22 is rotatably mounted on the mounting plate 1 and connected to the driving end of the rotary driving member 21, and the turntable 22 is located between the sliding connection portion 31 of the first clamping assembly 3 and the sliding connection portion 31 of the second clamping assembly 4. An arc-shaped first guide groove 25 and an arc-shaped second guide groove 26 are provided at the bottom of the turntable 22, the first guide wheel 23 is provided on the sliding connection portion 31 of the first clamping assembly 3 and is located in the first guide groove 25, and the second guide wheel 24 is provided on the sliding connection portion 31 of the second clamping assembly 4 and is located in the second guide groove 26.

[0060] The rotary drive member 21 is configured to drive the turntable 22 to rotate. When the turntable 22 rotates, it pushes the first guide wheel 23 and the second guide wheel 24 to slide in opposite directions along the first guide groove 25 and the second guide groove 26, so as to drive the first clamping assembly 3 and the second clamping assembly 4 to move closer to or apart from each other.

[0061] Optionally, the first guide groove 25 includes a first self-locking section 251 and a second self-locking section 252, wherein the first self-locking section 251 is located on the first side of the rotation center of the turntable 22, and the second self-locking section 252 is located on the third side of the rotation center of the turntable 22, and the second self-locking section 252 is connected to the first self-locking section 251 via the first distance adjustment section 253.

[0062] The second guide groove 26 includes a third self-locking section 261 and a fourth self-locking section 262. The third self-locking section 261 is located on the second side of the rotation center of the turntable 22, with the second side opposite the first side. The fourth self-locking section 262 is located on the fourth side of the rotation center of the turntable 22. The fourth self-locking section 262 is connected to the third self-locking section 261 via the second distance adjustment section 263, with the fourth side opposite the third side.

[0063] In addition, the distance between the first self-locking section 251 and the third self-locking section 261 is smaller than the distance between the second self-locking section 252 and the fourth self-locking section 262 .

[0064] When the rotary drive member 21 drives the turntable 22 to rotate, when the first guide wheel 23 slides to the first self-locking section 251, the second guide wheel 24 slides into the third self-locking section 261, thereby bringing the first clamping assembly 3 and the second clamping assembly 4 closer together to clamp the battery cell. When the first guide wheel 23 slides to the second self-locking section 252, the second guide wheel 24 slides into the fourth self-locking section 262, thereby separating the first clamping assembly 3 and the second clamping assembly 4, releasing the battery cell.

[0065] By setting the first guide groove 25 and the second guide groove 26, it is achieved that when the first guide wheel 23 and the second guide wheel 24 slide in opposite directions along the first guide groove 25 and the second guide groove 26 to their positions, they are respectively locked in the first self-locking section 251 and the third self-locking section 261, or respectively locked in the second self-locking section 252 and the fourth self-locking section 262, so that the first clamping assembly 3 and the second clamping assembly 4 can be maintained in a close state or a separated state, without the need for the rotating drive member 21 to continuously drive the turntable 22.

[0066] Alternatively, the rotary drive member 21 is a pneumatic cylinder, with its cylinder body hinged to the mounting plate and its telescopic rod hinged to the turntable 11. The pneumatic cylinder drives the telescopic rod to extend and retract, thereby rotating the turntable 22. Pneumatic cylinders offer advantages such as high drive speed, light weight, and low cost. Of course, the rotary drive member 21 may also utilize other drive components such as a screw motor.

[0067] Still taking the first clamping assembly 3 as an example, Figures 1 to 3 As shown, optionally, a second slide rail 8 is arranged on the mounting plate 1 in a horizontal direction, and the sliding connection part 31 includes a first slider 311 and a second slider 312 which are slidably connected to the second slide rail 8 side by side along the length direction of the second slide rail 8, wherein the second slider 312 is located on the outside of the first slider 311, the upper end of the clamping part 32 is connected to the second slider 312, and the driving end of the first driving part 2 is connected to the first slider 311.

[0068] The first clamping assembly 3 further includes an elastic pressing member 37 , which is configured to elastically press the second slider 312 against the first slider 311 .

[0069] When the first driving unit 2 drives the first slider 311 to slide inward, the elastic pressing member 37 presses the second slider 312 inward, causing the second slider 312 to slide along with the first slider 311, thereby driving the clamping portion 32 to elastically clamp the battery cell. When the first driving unit 2 drives the first slider 311 to slide outward, the first slider 311 pushes the second slider 312 outward to slide synchronously, thereby driving the clamping portion 32 to release the battery cell.

[0070] It can be seen that by configuring the sliding connection portion 31 to be the first slider 311 and the second slider 312 that are elastically pressed, the squeezing force of the clamping portion 32 on the battery cell is buffered, thereby preventing the battery cell from being hard clamped and causing pressure loss.

[0071] Optionally, the elastic pressing member 37 includes a limiting rod 371 and a second spring 372, wherein: the first end of the limiting rod 371 is fixedly connected to the first slider 311, the limiting rod 371 passes through the second slider 312 in the horizontal direction, and the second end of the limiting rod 371 is located outside the second slider 312. The second spring 372 is sleeved on the limiting rod 371, the first end of the second spring 372 abuts against the second slider 312, and the second end of the second spring 372 abuts against the second end of the limiting rod 371, and the second spring 372 elastically presses the second slider 312 against the first slider 311.

[0072] like Figure 4 As shown, the transport mechanism in the embodiment of the present application optionally further includes a base 5, a lifting drive member 6, and a lifting guide rod 7, wherein the lifting drive member 6 is disposed on the base 5, the driving end of the lifting drive member 6 being connected to the mounting plate 1, and the lifting drive member 6 being configured to drive the mounting plate 1 to move upward and downward. The lifting guide rod 7 is vertically slidably connected to the base 1, and the lower end of the lifting guide rod 7 is fixedly connected to the mounting plate 1.

[0073] By providing a lifting drive member 6, the first clamping assembly 3 and the second clamping assembly 4 can be driven to lift and lower. After the first clamping assembly 3 and the second clamping assembly 4 clamp the battery cell, they can lift the clamped battery cell upward, thereby separating the battery cell from the supporting surface. Then, under the action of gravity, the battery cell descends relative to the first clamping assembly 3 and the second clamping assembly 4 and is finally supported by the supporting block 35 at the lower end of the first clamping assembly 3 and the second clamping assembly 4. By providing a lifting guide rod 7, the first clamping assembly 3 and the second clamping assembly 4 are guided in the lifting and lowering, preventing the first clamping assembly 3 and the second clamping assembly 4 from tilting or shaking during the lifting process.

[0074] Optionally, the transport mechanism 10 in the embodiment of the present application further includes a moving part, the base 5 is mounted on a movable component of the moving part, and the moving part is configured to drive the base 5 to slide horizontally or move in multiple axes.

[0075] By providing the moving part, the first clamping assembly 3 and the second clamping assembly 4 can transport the workpiece to be transported to the target position.

[0076] Based on the same application concept, this application also provides a battery cell stacking device. Figure 5As shown, the battery cell stacking device in the embodiment of the present application includes a feeding table 20, a stacking mechanism 30 and the conveying mechanism 10 in any of the above embodiments, wherein: the feeding table 20 is configured to cache the battery cells 100 to be stacked. The conveying mechanism is configured to clamp the battery cells 100 from the feeding table 20, and to convey the clamped battery cells 100 to the stacking mechanism 30. The stacking mechanism 30 is configured to stack a predetermined number of battery cells 100 conveyed by the conveying mechanism into a battery cell module. Through the cooperation of the feeding table 20, the stacking mechanism 30 and the conveying mechanism 10, the battery cell stacking device in the embodiment of the present application realizes the automatic stacking and forming of the battery cell modules, and improves the stacking efficiency.

[0077] The above description of the present application is sufficiently detailed and has certain particularities. Those skilled in the art should understand that the descriptions in the embodiments are merely exemplary, and that all changes made without departing from the true spirit and scope of the present application should fall within the scope of protection of the present application. The scope of protection claimed in the present application is defined by the claims, not by the above description in the embodiments. Furthermore, the embodiments mentioned in the present application are not limited to being implemented individually, and some embodiments can also be implemented in combination.

Claims

1. A transport mechanism, characterized in that: The transport mechanism includes a mounting plate, a first driving portion, a first clamping assembly, and a second clamping assembly, wherein: The first driving part is arranged on the mounting plate; The second clamping assembly has the same structure as the first clamping assembly and is symmetrically arranged. The first clamping assembly includes a sliding connection portion and a clamping portion. The sliding connection portions of the first clamping assembly and the second clamping assembly are both horizontally slidably connected to the mounting plate. The first driving portion is configured to drive the clamping portions of the first clamping assembly and the second clamping assembly to move closer to or apart from each other to clamp or release the battery cell. The upper end of the clamping portion is connected to the sliding connection portion, and the clamping portion is provided with a clamping block and a first spring. The clamping block is vertically slidably connected to the corresponding clamping portion. One side surface of the clamping block protrudes from the clamping portion to form a clamping surface against the battery cell. The upper end of the first spring abuts against the bottom of the clamping block, and the lower end of the first spring abuts against the clamping portion. The lower ends of the clamping parts are each provided with a supporting block for carrying the battery core.

2. The transport mechanism according to claim 1, wherein: The clamping portion is provided with a mounting groove, and a first slide rail is provided in the mounting groove along the vertical direction; The clamping block is slidably connected to the first slide rail and is located in the mounting groove; The lower end of the first spring abuts against the bottom of the mounting slot.

3. The transport mechanism according to claim 1, wherein: The transport mechanism further includes a base, a lifting drive member and a lifting guide rod, wherein: The lifting drive member is arranged on the base, the driving end of the lifting drive member is connected to the mounting plate, and the lifting drive member is configured to drive the mounting plate to move up and down; The lifting guide rod is slidably connected to the base in a vertical direction, and the lower end of the lifting guide rod is fixedly connected to the mounting plate.

4. The transport mechanism according to claim 1, wherein: The first driving part includes a rotary driving member, a turntable, a first guide wheel and a second guide wheel, wherein: The rotary drive member is hinged on the mounting plate, the turntable is rotatably mounted on the mounting plate and connected to the driving end of the rotary drive member, and the turntable is located between the sliding connection portion of the first clamping assembly and the sliding connection portion of the second clamping assembly; The bottom of the turntable is provided with an arc-shaped first guide groove and an arc-shaped second guide groove, the first guide wheel is provided on the sliding connection portion of the first clamping assembly and is located in the first guide groove, and the second guide wheel is provided on the sliding connection portion of the second clamping assembly and is located in the second guide groove; The rotary drive member is configured to drive the turntable to rotate. When the turntable rotates, it pushes the first guide wheel and the second guide wheel to slide in opposite directions along the first guide groove and the second guide groove, so as to drive the first clamping assembly and the second clamping assembly to move closer to or apart from each other.

5. The transport mechanism according to claim 4, wherein: The first guide groove includes: a first self-locking section located on a first side of a rotation center of the turntable; a second self-locking section located on a third side of the rotation center of the turntable, the second self-locking section being connected to the first self-locking section via a first distance-adjusting section; The second guide groove includes: a third self-locking section located on a second side of the rotation center of the turntable, the second side being opposite to the first side; a fourth self-locking section located on a fourth side of the rotation center of the turntable, the fourth self-locking section being connected to the third self-locking section via a second distance-adjusting section, the fourth side being opposite to the third side; The distance between the first self-locking section and the third self-locking section is smaller than the distance between the second self-locking section and the fourth self-locking section; When the first guide wheel slides to the first self-locking section, the second guide wheel slides to the third self-locking section, and the first clamping assembly and the second clamping assembly move closer; When the first guide wheel slides to the second self-locking section, the second guide wheel slides to the fourth self-locking section, and the first clamping assembly and the second clamping assembly are separated.

6. The transport mechanism according to claim 5, wherein: The rotary driving member is a cylinder, a cylinder body of the cylinder is hinged to the mounting plate, and a telescopic rod of the cylinder is hinged to the turntable.

7. The transport mechanism according to claim 1, wherein: The mounting plate is provided with a second slide rail in a horizontal direction, and the sliding connection portion includes a first slider and a second slider which are slidably connected to the second slide rail side by side along the length direction of the second slide rail, wherein: The second slider is located outside the first slider, the upper end of the clamping portion is connected to the second slider, and the driving end of the first driving portion is connected to the first slider; The first clamping assembly further includes an elastic pressing member configured to elastically press the second sliding block against the first sliding block.

8. The transport mechanism according to claim 7, wherein: The elastic pressing member includes a limiting rod and a second spring, wherein: The first end of the limiting rod is fixedly connected to the first slider, the limiting rod passes through the second slider in a horizontal direction, and the second end of the limiting rod is located on the outside of the second slider; The second spring is sleeved on the limiting rod, the first end of the second spring abuts against the second slider, the second end of the second spring abuts against the second end of the limiting rod, and the second spring elastically presses the second slider against the first slider.

9. The transport mechanism according to claim 3, wherein The transport mechanism further includes a moving portion, the base is mounted on a movable component of the moving portion, and the moving portion is configured to drive the base to slide horizontally or move in multiple axes.

10. A battery cell stacking device, characterized in that: The battery cell stacking equipment comprises a feeding table, a stacking mechanism and a transport mechanism according to any one of claims 1 to 9, wherein: The feeding table is configured to buffer battery cells to be stacked; The transport mechanism is configured to clamp the battery cells from the feeding table and transport the clamped battery cells to the stacking mechanism; The stacking mechanism is configured to stack a predetermined number of battery cells transported by the transport mechanism into a battery cell module.

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