CN220774693U - Battery cell clamp, battery cell weighing device and liquid injection machine - Google Patents

Abstract

The application discloses electric core anchor clamps and electric core weighing device, annotate liquid machine, platform, electric core placing mechanism installs on the platform, and be equipped with the holding tank for erect and place electric core, side top mechanism is used for supporting the pushing away electric core so that electric core is preset state along thickness direction's side, preset state is electric core side is hugged closely in the state on manipulator sucking disc surface. According to the technical scheme provided by the embodiment of the application, the position of the battery cell is adjusted through the side-pushing mechanism, so that the stable position of the battery cell is ensured, and the battery cell is convenient for a third party manipulator to acquire the battery cell and has stable adsorption force.

Description

Battery cell clamp, battery cell weighing device and liquid injection machine

Technical Field

The utility model relates to the field of battery core clamps, in particular to a battery core clamp, a battery core weighing device and a liquid filling machine.

Background

Nowadays, in the high-tech era, portable electronic products and travel tools are visible everywhere, most of the portable electronic products and travel tools come from rechargeable batteries which can be recycled, and soft-package lithium ion batteries are one of the portable electronic products and travel tools and occupy important positions in consumer batteries and power batteries.

The soft package lithium battery is a polymer shell sleeved on a liquid lithium ion battery, is structurally packaged by an aluminum plastic film and plays a role in protecting internal cell materials. The soft package lithium battery has the advantages of high energy density, strong safety, flexible layout, good light weight, long cycle life and the like.

The battery core of the lithium ion battery needs to be fixed and weighed when being fed, and the battery core positioning before weighing in the industry is an independent station at present, and is generally positioned by adopting a CCD (charge coupled device), namely, before weighing, the battery core needs to be positioned, and the position of the battery core is adjusted on the positioning station, so that the battery core is easier to be grasped by a mechanical arm and is also easier to be placed at the preset position of the electronic scale. The CCD positioning is adopted, so that the position of the battery cell needs to be acquired, and the operation is relatively complex.

Disclosure of Invention

In view of the foregoing drawbacks or shortcomings in the prior art, it is desirable to provide a cell fixture, a cell weighing device, and a liquid filling machine.

In a first aspect, there is provided a cell fixture comprising:

the platform is provided with a plurality of grooves,

the battery cell placing mechanism is arranged on the platform and is provided with a containing groove for vertically placing the battery cell,

the side ejection mechanism is used for pushing the battery cell so that the side face of the battery cell along the thickness direction is in a preset state, and the preset state is a state that the side face of the battery cell is tightly attached to the surface of the sucker of the manipulator.

As an achievable manner, the side roof mechanism includes: the pushing driving piece is connected with the pushing part and is arranged on one surface of the pushing part far away from the battery cell,

the pushing driving piece is used for pushing the pushing part to move along the direction approaching to the battery cell or away from the battery cell.

As an achievable mode, the pushing driving member is a linear driving mechanism, and is used for driving the pushing portion to move along a straight line.

As an achievable manner, the cell placement mechanism includes: the mounting panel of relative setting, the mounting panel is installed on the platform, and relative setting form first accommodation space between the mounting panel, first accommodation space is used for holding the electric core bottom.

As an achievable manner, the cell placement mechanism further includes: at least two sets of baffles of relative setting, every group the baffle with the mounting panel one-to-one sets up, and fixed or demountable installation is in on the mounting panel, form the second accommodation space between the baffle of relative setting, the second accommodation space with first accommodation space holds jointly the electric core.

As an achievable mode, the baffle comprises two groups of baffles arranged at intervals, and the pushing part is arranged between the two baffles at intervals in a penetrating way.

As an achievable way, it includes: the adjusting mechanism comprises a first adjusting component and a second adjusting component which are respectively arranged at two sides of the battery cell placing mechanism, and the first adjusting component and the second adjusting component are matched to center the battery cell.

As an achievable mode, the first adjusting component comprises a first shaping bar, and the first shaping bar is arranged on one side of the cell placement mechanism and can be abutted to the side face of the cell.

As an achievable way, the first shaping bar is fixedly arranged relative to the cell placement mechanism or is movable relative to the cell placement mechanism.

As an achievable mode, the second adjusting component comprises a second shaping bar, and the second shaping bar and the first shaping bar are respectively arranged at two sides of the battery cell placing mechanism and can be abutted to the side face of the battery cell.

As an achievable mode, the second shaping bar is provided with a push rod, and the second shaping bar is abutted to the side face of the battery cell through the push rod.

As an achievable way, the adjusting mechanism further comprises a double-acting air cylinder, the double-acting air cylinder comprises two symmetrically arranged output ends, and the two output ends are respectively connected with the first shaping bar and the second shaping bar in a driving mode.

In a second aspect, there is provided a cell weighing apparatus comprising: an electronic scale body and the battery core clamp,

the battery core clamp is arranged on the electronic scale body.

In a third aspect, a liquid injection machine is provided, including the above-mentioned electric core weighing device, be used for measuring electric core weight before the electric core annotates liquid or after annotating liquid.

According to the technical scheme provided by the embodiment of the application, the position of the battery cell is adjusted through the side-pushing mechanism, so that the stable adsorption force of the battery cell position is ensured when the battery cell is acquired by the third-party manipulator.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the following drawings, in which:

fig. 1 is a schematic diagram of a fixture structure of a battery cell in the present embodiment;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a front view of FIG. 1;

fig. 4 is a schematic diagram illustrating the use of the structure of the battery cell clamp in the present embodiment;

fig. 5 is a rear view of fig. 4.

Reference numerals:

platform 10, cell placement mechanism 20, mounting plate 21,

inclined surface 211, vertical surface 212, baffle 22,

the accommodating groove 23, the side pushing mechanism 30, the pushing portion 31,

a gas pipe 32, a gas supply system 33, a support 34,

the adjustment mechanism 40, the first adjustment assembly 41, the first shaping bar 411,

the first output 412, the first adjustment aperture 413, the second adjustment assembly 42,

the second shaping bar 421, the push rod 422, the second output 423,

the second adjustment aperture 424, the battery cell 50, the tab 51,

edge banding 53, fixture 100.

Detailed Description

The present application is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be noted that, for convenience of description, only the portions related to the utility model are shown in the drawings.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Referring to fig. 1 to 3, the present embodiment provides a fixture for preventing a cell from being shifted, including:

the platform 10 is configured to provide a plurality of support structures,

a cell placement mechanism 20, wherein the cell placement mechanism 20 is installed on the platform 10 and is provided with a containing groove 23 for vertically placing the cell 50,

the side ejection mechanism 30 is configured to push the battery cell 50 so that a side surface of the battery cell 50 in a thickness direction is in a preset state, where the preset state is a state that the side surface of the battery cell 50 is tightly attached to a surface of a sucker of a manipulator.

The embodiment provides a fixture 100 for placing a battery cell 50, and the position of the battery cell is adjusted by a side-top mechanism 30 after the battery cell 50 is placed, so that stable adsorption force is ensured when a third party manipulator is convenient to acquire the battery cell due to stable position of the battery cell.

Further, the side roof mechanism 30 includes: a pushing driving member and a pushing portion 31, wherein the pushing driving member is connected with the pushing portion 31, is disposed on a surface of the pushing portion 31 away from the battery cell 50,

the pushing driving member is configured to push the pushing portion 31 to move in a direction approaching the battery cell 50 or moving away from the battery cell 50.

In this embodiment, the battery cell is placed in the accommodating groove 23, for protecting the battery cell 50, a certain gap exists between the battery cell 50 and the baffle 22 forming the accommodating groove 23, when the battery cell 50 needs to be grabbed, the battery cell is generally grabbed from one side surface of the plane where the battery cell is located, and preferably, a manipulator (not shown in the figure) with a sucker is used for operating, in order to ensure that the battery cell 50 is tightly attached to the sucker on the manipulator, the manipulator grabs the battery cell more firmly, the battery cell is pushed by the manipulator through the side-pushing mechanism 30, so that the battery cell 50 moves or tilts towards the direction close to the manipulator, the manipulator is easier to pick up the battery cell, therefore, the side-pushing mechanism 30 and the manipulator are arranged on two sides of the plane where the battery cell is located, and the side-pushing mechanism 30 pushes the battery cell to the manipulator for grabbing;

the side pushing mechanism 30 comprises a pushing driving member and a pushing portion 31, the pushing portion 31 is close to the battery cell 50 to push, the contact surface of the pushing portion 31 and the battery cell 50 is smooth, the battery cell cannot be affected, the pushing portion 31 is mounted on the pushing driving member, and the pushing driving member pushes the pushing portion 31 to move along a straight line.

Further, the pushing driving member is a linear driving mechanism, and is configured to drive the pushing portion 31 to move along a straight line.

The pushing driving member may take various forms, for example, an air supply system 33 and an air pipe 32 shown in fig. 1, or a hydraulic cylinder or a linear motor, as long as pushing of the pushing portion 31 along a linear movement is achieved.

The movement of the adjusting mechanism 40 moves the battery cell 50 to a predetermined position, where the battery cell blanking frame (not shown) is located, so that the battery cell 50 can perform the injection operation.

Further, the cell placement mechanism 20 includes: the mounting plates 21 are oppositely arranged, the mounting plates 21 are mounted on the platform 10, and a first accommodating space is formed between the oppositely arranged mounting plates 21 and is used for accommodating the bottom of the battery cell 50.

As shown in fig. 1 to 3, the platform 10 is provided in a flat plate structure, provides a stable platform structure, facilitates the platform 10 to move and place with the whole fixture 100 to a corresponding position, and also provides a position for stable placement of the cell placement mechanism 20 and the cell 50.

Further, the cell placement mechanism 20 further includes: the at least two sets of baffles 22 of relative setting, every group baffle 22 with mounting panel 21 one-to-one sets up, and fixed or demountable installation is in on the mounting panel 21, form the second accommodation space between the baffle 22 of relative setting, the second accommodation space with first accommodation space holds jointly electric core 50.

The cell placement mechanism 20 provided in this embodiment includes two parts, namely a mounting plate 21 and at least two groups of baffles 22, wherein the mounting plate 21 is provided as two opposite parts, a certain gap is left in the middle for accommodating the cell 50, the mounting plate 21 is mounted on the platform 10, and provides a mounting platform for the baffles 22 and a certain accommodating position for the cell 50;

the at least two groups of baffles 22 arranged on the mounting plate 21 fix the battery cells, in this embodiment, the baffles 22 oppositely arranged on two sides of the accommodating groove 23 are of a group of baffle structures, the two groups of baffles are arranged side by side to provide four-point support for the battery cells 50 placed in the accommodating groove 23, in this embodiment, the number of the baffles 22 can be adjusted according to the different sizes of the battery cells 50, if the size of the battery cells is larger, three groups or four groups of baffles can be provided to provide the accommodating groove for the battery cells, meanwhile, the length of the baffle structure, that is, the distance from one end contacted with the mounting plate to one end far away from the mounting plate is preferably greater than or equal to the height of the battery cells, so that shaking is not easy to occur when the battery cells are placed between the baffles, and the battery cells are relatively stable;

as shown in fig. 4 and 5, which are schematic diagrams illustrating the use state of the fixture 100 according to the present embodiment, the battery cells 50 are placed in the accommodating grooves 23 between each set of baffles 22, and the width of the accommodating grooves 23 is slightly larger than the thickness of the battery cells 50, so that the battery cells 50 are not extruded when placed in the accommodating grooves 23, and no compression or scratch is generated on the surfaces of the battery cells 50; because the electric core is placed in the accommodation groove 23, the edge sealing 53 of the electric core 50 partially falls in the gap between the mounting grooves and the mounting plates, and the thickness of the edge sealing 53 of the electric core is obviously smaller than the thickness of the middle position of the electric core 50, so, in order to prevent the situation that the edge sealing of the electric core is deformed due to extrusion of the platform at the bottom when the electric core 50 is placed in the accommodation groove 23, the two opposite sides of the mounting plate 21 are preferably arranged into a Y-shaped structure, and particularly, as shown in fig. 3, the two opposite sides of the mounting plate 21 are both inclined surfaces 211 and vertical surfaces 212 which are connected, and the inclined surfaces 211 are inclined in a direction away from the accommodation groove 23, and the vertical surfaces 212 are connected with the platform 10, and the height of the preferred vertical surfaces 212 is generally larger than the width of the edge sealing 53 of the electric core, that is the electric core body is blocked by the opposite inclined surfaces, so that the edge sealing cannot touch the platform and cannot be deformed when the electric core 50 is placed in the accommodation groove 23.

Further, the baffle plates 22 include two groups of baffle plates 22 arranged at intervals, and the pushing part is arranged between the two baffle plates 22 at intervals in a penetrating way.

In order to adapt to the electric cores with different sizes, the included angle provided by the embodiment has wider adaptability, the baffle 22 and the mounting plate 21 are arranged in a detachable connection mode, for example, a threaded hole is formed in the baffle 22 and is in threaded connection with the mounting plate to realize fixation, the threaded hole formed in the baffle 22 is preferably provided with a long-strip-shaped hole in cross section, the baffle 22 can move close to or away from each other, the position of the baffle can be adjusted through bolt fixation, or the threaded hole in the mounting plate 21 is provided with a long-strip-shaped hole, and the position of the baffle 22 can be adjusted as well;

still further, the distance between the baffles 22 of different groups is set to be adjustable, for example, a plurality of threaded holes are set on the mounting plate 21, the threaded holes are arranged along the length direction of the mounting plate 21, namely, the direction parallel to the accommodating groove, the baffles 22 of different groups can be installed in different mounting holes, and the positions of the baffles 22 of different groups are adjusted, so that different supporting ranges are formed by the baffles of different groups, and the battery cores of different sizes are adapted.

As shown in fig. 1, in this embodiment, a support member 34 is further disposed on the fixing support 32, the support member 34 is mounted on the platform 10, a through hole is formed in the support member 34 for the fixing support 32 to pass through and move, the side-propping mechanism 30 is supported and fixed in position by the support member 34, the side-propping mechanism 30 is preferably disposed between adjacent baffles, pushing operation is performed on the middle part of the battery cell, and the stress of the battery cell is relatively uniform.

Further, the method comprises the steps of: the adjusting mechanism 40, the adjusting mechanism 40 comprises a first adjusting component 41 and a second adjusting component 42 which are respectively arranged at two sides of the cell placing mechanism 20, and the first adjusting component 41 and the second adjusting component 42 are matched to center the cell 50.

In this embodiment, when the battery cell is placed in the accommodating groove 23, the position of the battery cell is not completely centered, and there is a possibility that the position of the battery cell is offset, and the battery cell 50 is pushed to an optimal position, for example, the middle position of the accommodating groove 23 by adjusting and pushing the position of the battery cell by the adjusting mechanism 40, so that the adjusting mechanism 40 is disposed on the side surface of the accommodating groove 23 (if the position of the side-pushing mechanism is set to be the rear, the manipulator is located in front of the accommodating groove, and the adjusting mechanism is located on the left and/or right of the accommodating groove), and the battery cell is pushed to move in the accommodating groove 23 by the adjusting mechanism 40. The adjusting mechanism 40 at least comprises a first adjusting component 41 and a second adjusting component 42 which are arranged on two sides of the accommodating groove 23, the second adjusting component 42 and the first adjusting component 41 are matched to fix the two sides of the battery cell, the second adjusting component 42 is set to be in a fixed form, the position of the battery cell is fixed on one side, or the second adjusting component is set to be in a movable form, and the two sides of the battery cell are simultaneously moved to adjust the position of the battery cell. Wherein, the electric core moves along length or width direction in the holding tank, and it is relevant with the form of placing of electric core, if the electric core is placed in holding tank 23, long limit is close to the platform, and then first adjusting part and second adjusting part push the electric core and move along length direction, otherwise follow electric core width direction and remove.

Further, the first adjusting component 41 includes a first shaping bar 411, where the first shaping bar 411 is disposed on one side of the cell placement mechanism 20 and can be abutted against the side surface of the cell 50.

The first adjusting component 41 comprises a first shaping bar 411, the first shaping bar 411 is perpendicular to the surface of the accommodating groove 23, the electric core in the accommodating groove 23 is pushed to move by the movement of the first shaping bar 411, the movement direction of the first shaping bar 411 is the direction close to or far from the accommodating groove 23, and the first shaping bar 411 is abutted to the side surface of the electric core from the space between the positive and negative lugs of the electric core.

Further, the first shaping bar 411 is fixedly disposed with respect to the cell placement mechanism 20 or movable with respect to the cell placement mechanism 20.

The first adjustment assembly 41 and the second adjustment assembly 42 in this embodiment are optionally provided in a movable or fixed form, which cooperate to urge the battery cells to a prescribed position.

Further, the second adjusting component 42 includes a second shaping bar 421, the second shaping bar 421 and the first shaping bar 411 are separately disposed at two sides of the cell placement mechanism 20, and the second shaping bar 421 can be abutted against the side surface of the cell 50.

In order to improve the effect of adjusting the position of the battery cell, the adjusting mechanism 40 provided in this embodiment further includes a second adjusting component 42, where the second adjusting component 42 and the first adjusting component 41 are disposed on two opposite sides of the accommodating groove 23, and push the battery cell 50 from two sides, so that the battery cell 50 can be pushed and adjusted no matter which side is biased, the second shaping strip 421 is also disposed on the second adjusting component 41, and the second shaping strip 421 and the first shaping strip 411 may be symmetrical structures, and move relatively to adjust the battery cell and move away from the position where the battery cell is located.

Further, a push rod 422 is mounted on the second shaping bar 421, and the second shaping bar 421 abuts against the side surface of the battery cell 50 through the push rod 422.

Since the battery cell 50 placed in the accommodating groove 23 in this embodiment has the tab 51 structure, the tab 51 is generally placed in a form as shown in fig. 4 and 5, and therefore, the movement of the first adjusting component 41 on the tab 51 side cannot collide and squeeze the tab 51, the height of the first shaping strip 411 on the first adjusting component 41 is set to be lower than the height of the tab 51, or the first shaping strip 411 is placed between the tabs of the positive and negative electrodes, the side surface of the second adjusting component 42 is not provided with other structures such as the tab 51, and the second shaping strip 421 is provided with the push rod 422, the battery cell is pushed by the push rod 422, the length direction of the push rod 422 is the same as the movement direction of the second adjusting component 42 and the second shaping strip 421, the push rod 422 is placed at the position of the accommodating groove 23, corresponding to the accommodating groove 23, and the pushing movement can push the battery cell in the accommodating groove.

Further, the first shaping bar 411 and the second shaping bar 421 are located on the same plane or different planes.

In order to ensure that when the first adjusting component 41 and the second adjusting component 42 relatively move to push and adjust the battery cell, when the first adjusting component 41 and the second adjusting component 42 both touch the battery cell, the stress of the battery cell is relatively uniform, and the first shaping strip 411 and the second shaping strip 421 are preferably arranged on the same plane, so that the battery cell is pushed on two sides on the same plane, and the situation of local deformation or skew cannot occur. Or on different planes depending on the specific structure of the first shaping bar 411 and the second shaping bar 421.

Further, the adjusting mechanism 40 further includes a double-acting cylinder, the double-acting cylinder includes two symmetrically arranged output ends, and the two output ends are respectively connected to the first shaping bar 411 and the second shaping bar 421 in a driving manner.

In this embodiment, the double-acting cylinder is provided, the first shaping bar 411 and the second shaping bar 421 are movably installed on the double-acting cylinder, the double-acting cylinder is used for adjusting and driving, the double-acting cylinder can also limit the travel positions of the first shaping bar 411 and the second shaping bar 421, the first shaping bar 411 and the second shaping bar 421 can be stopped when moving to the corresponding positions, the positions are the optimal positions for placing the battery cells, and the battery cells are clearly pushed to the optimal positions through the cooperation of the first shaping bar 411 and the second shaping bar 421, so that the efficiency is higher. The first shaping bar 411 and the second shaping bar 421 are connected to the same double-acting cylinder, and the double-acting cylinder includes a first output end 412 and a second output end 423 which are symmetrically arranged, the first shaping bar 411 is installed on the first output end 412, and the second shaping bar 421 is installed on the second output end 423.

Optionally, a first adjusting hole 413 is provided at the first output end 412, a second adjusting hole 424 is provided at the second output end 423, the first shaping bar 411 is position-adjustable through the first adjusting hole 413, and the second shaping bar 421 is position-adjustable through the second adjusting hole 424.

The embodiment also provides a cell weighing device, including: an electronic scale body, and the above-described cell fixture 100,

the battery cell fixture 100 is mounted on the electronic scale body.

This embodiment will prevent the anchor clamps direct mount of electric core position skew on the electronic scale body, the electronic scale can directly weigh whole anchor clamps and the electric core of placing on anchor clamps, this step of weighing can last to annotate the liquid after from annotating before the liquid, the electric core need not to change the position and just can realize annotating weighing around the liquid, the data acquisition of electric core unloading and electronic scale is more stable, and this anchor clamps and electronic scale combine, can also save space, improve space utilization, simultaneously reduce equipment cost.

The provided battery cell weighing device is further provided with a data acquisition module, and the acquired battery cell weight data are transmitted to the upper computer so as to be convenient for data collection and analysis.

The embodiment also provides a liquid injection machine, which comprises the cell weighing device and is used for measuring the weight of the cell before or after liquid injection.

According to the embodiment, the battery cell weighing device is combined on the liquid injection machine for use, the weight of the battery cell before and after liquid injection can be detected in real time, and the liquid injection machine can conveniently quantitatively inject liquid into the battery cell.

It is to be understood that the above references to the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., are for convenience in describing the present utility model and simplifying the description only, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be oriented 90 degrees or at other orientations and the spatially relative descriptors used herein interpreted accordingly.

The foregoing description is only of the preferred embodiments of the present application and is presented as a description of the principles of the technology being utilized. It will be appreciated by persons skilled in the art that the scope of the utility model referred to in this application is not limited to the specific combinations of features described above, but it is intended to cover other embodiments in which any combination of features described above or equivalents thereof is possible without departing from the spirit of the utility model. Such as the above-described features and technical features having similar functions (but not limited to) disclosed in the present application are replaced with each other.

Claims (14)

1. A cell fixture (100), comprising:

a platform (10),

the battery cell placing mechanism (20), the battery cell placing mechanism (20) is arranged on the platform (10) and is provided with a containing groove (23) for vertically placing the battery cell (50),

the side ejection mechanism (30) is used for pushing the battery cell (50) so as to enable the side face of the battery cell (50) in the thickness direction to be in a preset state, and the preset state is a state that the side face of the battery cell (50) is tightly attached to the surface of the sucker of the manipulator.

2. The cell clamp (100) of claim 1, wherein the side-ejection mechanism (30) comprises: the pushing driving piece and the pushing part (31) are connected with the pushing part (31) and arranged on one surface of the pushing part (31) far away from the battery cell (50),

the pushing driving piece is used for pushing the pushing part (31) to move along the direction approaching to the battery cell (50) or away from the battery cell (50).

3. The cell clamp (100) according to claim 2, wherein the pushing driving member is a linear driving mechanism for driving the pushing portion (31) to move in a linear direction.

4. The cell clamp (100) of claim 2, wherein the cell placement mechanism (20) comprises: the mounting plates (21) are oppositely arranged, the mounting plates (21) are arranged on the platform (10), a first accommodating space is formed between the oppositely arranged mounting plates (21), and the first accommodating space is used for accommodating the bottom of the battery cell (50).

5. The cell clamp (100) of claim 4, wherein the cell placement mechanism (20) further comprises: at least two sets of baffles (22) of relative setting, every group baffle (22) with mounting panel (21) one-to-one sets up, and fixed or demountable installation is in on mounting panel (21), form the second accommodation space between the baffle (22) of relative setting, the second accommodation space with first accommodation space holds jointly electric core (50).

6. The cell clamp (100) according to claim 5, wherein the baffle plates (22) comprise two groups of baffle plates (22) arranged at intervals, and the pushing portion (31) is arranged between the two baffle plates (22) at intervals in a penetrating manner.

7. The cell clamp (100) of claim 1, comprising:

the battery cell positioning device comprises an adjusting mechanism (40), wherein the adjusting mechanism (40) comprises a first adjusting component (41) and a second adjusting component (42) which are respectively arranged at two sides of the battery cell positioning mechanism (20), and the first adjusting component (41) and the second adjusting component (42) are matched to center the battery cell (50).

8. The cell clamp (100) according to claim 7, wherein the first adjusting assembly (41) comprises a first shaping bar (411), and the first shaping bar (411) is disposed on one side of the cell placement mechanism (20) and can abut against the side surface of the cell (50).

9. The cell clamp (100) of claim 8, wherein the first shaping bar (411) is fixedly disposed relative to the cell placement mechanism (20) or movable relative to the cell placement mechanism (20).

10. The cell fixture (100) according to claim 8, wherein the second adjusting component (42) comprises a second shaping bar (421), the second shaping bar (421) and the first shaping bar (411) are separately arranged at two sides of the cell placement mechanism (20), and the second shaping bar (421) can be abutted against the side surface of the cell (50).

11. The cell fixture (100) according to claim 10, wherein a push rod (422) is mounted on the second shaping bar (421), and the second shaping bar (421) is abutted to the side surface of the cell (50) through the push rod (422).

12. The cell clamp (100) according to claim 10 or 11, wherein the adjusting mechanism (40) further comprises a double acting cylinder comprising two symmetrically arranged outputs, and wherein the two outputs are drivingly connected to the first shaping bar (411) and the second shaping bar (421), respectively.

13. A cell weighing apparatus, comprising: an electronic scale body, and a cell fixture (100) according to any one of claims 1-12,

the battery core clamp (100) is installed on the electronic scale body.

14. A liquid filling machine comprising a cell weighing apparatus according to claim 13 for measuring the weight of a cell before or after filling.