CN221038075U

CN221038075U - Pole piece automatic sampling device, testing mechanism and battery production line

Info

Publication number: CN221038075U
Application number: CN202322438816.XU
Authority: CN
Inventors: 万成龙
Original assignee: Chongqing Talent New Energy Co Ltd
Current assignee: Chongqing Talent New Energy Co Ltd
Priority date: 2023-09-07
Filing date: 2023-09-07
Publication date: 2024-05-28
Anticipated expiration: 2033-09-07

Abstract

The utility model belongs to the technical field of automatic sampling devices, and discloses an automatic pole piece sampling device, a testing mechanism and a battery production line. The pole piece automatic sampling device comprises: the objective table is used for placing the pole piece to be sampled; the slicing mechanism is used for slicing the pole piece to be sampled on the objective table so as to obtain a sample to be detected; and the slice taking mechanism is used for transferring the sample to be measured obtained by the slice cutting mechanism to the measuring station from the objective table. The pole piece automatic sampling device is simple in structure, easy to operate, capable of realizing automatic sampling of the pole piece, free of human intervention in the whole pole piece sampling process, capable of reducing operation differences among different testers, guaranteeing accuracy and consistency of test results, high in testing efficiency and capable of greatly saving time of manual sampling test.

Description

Pole piece automatic sampling device, testing mechanism and battery production line

Technical Field

The utility model belongs to the technical field of automatic sampling devices, and particularly relates to an automatic pole piece sampling device, a testing mechanism and a battery production line.

Background

In the pole piece production procedures of lithium battery manufacturing coating, rolling and the like, the full detection monitoring in the pole piece manufacturing process is realized by introducing the on-line thickness measuring technology of beta-ray thickness measurement or laser thickness measurement and the like, but the stability and the accuracy of a measuring system are considered, and manual sampling is also needed for manual retesting during first detection so as to ensure the quality of the production process. The accuracy calibration of the equipment is also real-time calibration and calibration according to the result of the manual sampling test. The existing pole piece sampling instrument is mostly provided with manual punching and manual positioning, and in the sampling process, time and labor are wasted, the efficiency is low, the consistency difference of sampling by different personnel is large, and certain influence is brought to the judgment of the result.

Disclosure of utility model

In view of the foregoing drawbacks or shortcomings of the prior art, it is desirable to provide an automatic pole piece sampling device, test mechanism and battery manufacturing line.

In a first aspect of the present utility model, there is provided an automatic pole piece sampling device comprising: the objective table is used for placing the pole piece to be sampled;

The slicing mechanism is used for slicing the pole piece to be sampled on the objective table so as to obtain a sample to be detected;

And the slice taking mechanism is used for transferring the sample to be measured obtained by the slice cutting mechanism to the measuring station from the objective table.

The pole piece automatic sampling device provided by the utility model has the advantages that the structure is simple, the operation is easy, the automatic sampling of the pole piece can be realized, the manual intervention is not needed in the whole pole piece sampling process, the operation difference among different testers is reduced, the accuracy and the consistency of the test result are ensured, the test efficiency is high, and the time for manual sampling test is greatly saved.

In addition, the pole piece automatic sampling device can also have the following additional technical characteristics:

Preferably, the objective table is fixedly arranged, and the slicing mechanism and the slice taking mechanism are respectively arranged at two sides of the objective table;

Or the objective table is arranged in a sliding way along a first direction, and the slicing mechanism and the slice taking mechanism are sequentially arranged on the same side of the objective table along the sliding direction of the objective table;

Or the objective table is arranged in a sliding manner along a first direction, and the slicing mechanism and the slice taking mechanism are arranged on two sides of the objective table along a second direction, wherein the second direction intersects with the first direction.

Preferably, when the slicing mechanism and the slice taking mechanism are arranged on two sides of the object stage along the second direction, the slicing mechanism and the slice taking mechanism are symmetrically or misplaced on two sides of the object stage along the second direction.

Preferably, the slide taking mechanism comprises a first adsorption component, and the first adsorption component is used for adsorbing the sample to be detected on the objective table.

Preferably, the first adsorption assembly includes: the vacuum pump comprises a sucker and a vacuum pump, wherein an air inlet of the vacuum pump is communicated with the sucker.

Preferably, the sheet taking mechanism further comprises a first driving component, the first driving component is connected with the first adsorption component, and the first driving component is used for driving the first adsorption component to be close to or far away from the sample to be detected on the object stage.

Preferably, the slice taking mechanism further comprises a second driving assembly, wherein the second driving assembly is used for driving the first driving assembly to horizontally rotate and driving the sample to be measured adsorbed by the first adsorption assembly to rotationally move to the measuring station;

And/or the sheet taking mechanism further comprises a third driving assembly, wherein the third driving assembly is used for driving the first driving assembly to linearly move along the first direction and driving the sample to be measured adsorbed by the first adsorption assembly to linearly move to the measuring station along the first direction.

Preferably, the slide taking mechanism is slidably disposed on the objective table along the second direction, so that the first adsorption component is located at a position to be adsorbed by the sample to be detected.

Preferably, the plurality of the sheet taking mechanisms are distributed on two sides of the object stage along the second direction, or the plurality of the sheet taking mechanisms are distributed on the same side of the object stage along the first direction.

Preferably, the slicing mechanism comprises a fourth driving assembly and a cutter; the fourth driving component is used for driving the cutting knife to be close to or far away from the sample to be detected on the objective table.

Preferably, the slicing mechanism is slidably arranged along the second direction, so that the cutting knife is positioned at the slicing position of the pole piece to be sampled.

Preferably, the plurality of slicing mechanisms are distributed on two sides of the objective table along the second direction; or a plurality of the slicing mechanisms are distributed on the same side of the objective table along the first direction.

Preferably, the objective table is provided with a second adsorption component, and the second adsorption component is used for adsorbing and fixing the pole piece to be sampled on the objective table.

Preferably, the pole piece automatic sampling device further comprises a base, and the objective table is slidably arranged on the base along the first direction.

Preferably, a chute is formed in the base along a first direction, and the objective table is slidably assembled in the chute.

According to a second aspect of the embodiment of the application, a testing mechanism is provided, which comprises the pole piece automatic sampling device according to any embodiment of the application.

According to the testing mechanism provided by the utility model, the pole piece automatic sampling device is adopted, so that automatic sampling of the pole piece can be realized, the obtained samples to be tested are consistent in size, errors caused by manual operation are avoided, and the purpose of rapidly and accurately sampling the pole piece is achieved.

Preferably, the testing mechanism further comprises a weighing device, the weighing device is arranged at the measuring station, and the slice taking mechanism is used for transferring the sample to be tested obtained by the slice taking mechanism from the objective table to the weighing device.

Preferably, the test mechanism further comprises a controller, and the signal output end of the weighing device is electrically connected with the signal input end of the controller.

According to a third aspect of embodiments of the present application, a battery production line is provided, where the battery production line includes the pole piece automatic sampling device according to any embodiment of the present application, or includes the testing mechanism according to any embodiment of the present application.

According to the battery production line provided by the utility model, the pole piece automatic sampling device or the testing mechanism provided by the utility model is arbitrarily implemented to realize automatic pole piece sampling, manual intervention is not needed in the whole pole piece sampling process, the operation difference among different testers is reduced, the accuracy and consistency of the test result are ensured, the test efficiency is high, and the time for manual sampling test is greatly saved.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

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 accompanying drawings in which:

fig. 1 is an exemplary block diagram of an automatic pole piece sampling device according to an embodiment of the present application.

In the above figures: 10 stage; 20 slicing mechanism; 21 a fourth drive assembly; 22 cutting knives; 30a slice taking mechanism; 31 a first adsorption assembly; 32 a first drive assembly; a 40 base; 50 driving the device; 60 weighing devices; 70 terminal device.

Detailed Description

The utility model 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 further noted that, for convenience of description, only a portion related to the present utility model is shown in the drawings.

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

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.

Throughout the specification and claims, the term "comprising" is to be interpreted as an open, inclusive meaning, i.e. "comprising, but not limited to, unless the context requires otherwise.

In the description of the present specification, the terms "one embodiment," "some embodiments," "example embodiments," "examples," "particular examples," or "some examples," etc., are intended to indicate that a particular feature, structure, material, or characteristic associated with the embodiment or example is included in at least one embodiment or example of the present disclosure. The schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying 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. In the description of the embodiments of the present disclosure, unless otherwise indicated, the meaning of "a plurality" is two or more.

Referring to fig. 1, in a first aspect of the present utility model, there is provided an automatic pole piece sampling device comprising: a stage 10, wherein the stage 10 is used for placing a pole piece to be sampled;

The slicing mechanism 20 is used for slicing the pole piece to be sampled on the objective table 10 to obtain a sample to be detected;

A slide taking mechanism 30, wherein the slide taking mechanism 30 is used for transferring the sample to be measured obtained by the slicing mechanism 20 from the objective table 10 to a measuring station.

Specifically, in the pole piece automatic sampling device provided by the embodiment of the application, the slicing mechanism 20 is utilized to slice the pole piece to be sampled placed on the objective table 10 so as to obtain a sample to be tested; and then, the sample to be measured acquired by the slicing mechanism 20 is transferred to a measuring station from the object stage 10 by utilizing the slice taking mechanism 30, so that automatic sampling of the pole piece is realized. The pole piece automatic sampling device is simple in structure and easy to operate, manual intervention is not needed in the whole pole piece sampling process, operation differences among different testers are reduced, accuracy and consistency of test results are guaranteed, the testing efficiency is high, and time for manual sampling and testing is greatly saved.

The pole piece can be an anode piece or a cathode piece of the battery. The stage 10 may be a transfer tray or the like.

In some embodiments, the stage 10 is fixedly disposed, and the slicing mechanism 20 and the slice taking mechanism 30 are disposed on two sides of the stage 10, respectively;

Or alternatively

The object stage 10 is slidingly arranged along a first direction, the slicing mechanism 20 and the slice taking mechanism 30 are sequentially arranged on the same side of the object stage 10 along the sliding direction of the object stage 10,

Or the slicing mechanism 20 and the picking mechanism 30 are disposed on both sides of the stage 10 along a second direction intersecting the first direction.

Specifically, the arrangement of the stage 10 and the position layout of the stage 10, the slicing mechanism 20 and the slice taking mechanism 30 in the embodiment of the present application may have various implementation manners.

For example, if the stage 10 is fixedly arranged, the slicing mechanism 20 and the slice taking mechanism 30 are located at two sides of the stage 10, that is, after the slicing mechanism 20 slices the pole piece to be sampled on the stage 10, the slicing mechanism 20 may be rotated to move away or move towards a side far away from the stage 10, and then the slice taking mechanism 30 transfers the sample to be measured obtained by the slicing mechanism 20 on the stage 10 to the measuring station.

For another example, referring to fig. 1, when the stage 10 is slidably disposed along the first direction, the position layout of the stage 10, the slicing mechanism 20 and the slice taking mechanism 30 may have various implementations, and in various implementations, the slicing mechanism 20 is always located between the stage 10 and the slice taking mechanism 30, so as to ensure that the pole piece to be sampled is sliced first and then sampled for the measurement process. For example, the slicing mechanism 20 and the slice taking mechanism 30 are sequentially disposed on the same side of the stage 10 along the sliding direction of the stage 10, wherein the first direction is defined as the sliding direction of the stage 10; or the slicing mechanism 20 and the slice taking mechanism 30 are arranged on both sides of the stage 10 along the second direction; or the dicing mechanism 20 is provided on one side of the stage 10 in the second direction, and the sampler mechanism is provided at the end of the stage 10 in the sliding direction, or the like. Wherein the second direction intersects the first direction, both of which may be located at the same horizontal plane, e.g. the first direction is perpendicular to the second direction.

In some embodiments, when the slicing mechanism 20 and the sheet taking mechanism 30 are disposed on both sides of the stage 10 along the second direction, the slicing mechanism 20 and the sheet taking mechanism 30 are symmetrically or dislocately disposed on both sides of the stage 10 along the second direction.

Specifically, the slicing mechanism 20 and the sheet taking mechanism 30 are disposed symmetrically or offset on both sides of the stage 10 in the second direction at a position along the sliding direction of the stage 10, respectively. When the slicing mechanism 20 and the slice taking mechanism 30 are symmetrically disposed on two sides of the objective table 10 along the second direction, after slicing the pole piece to be sampled on the objective table 10 by the slicing mechanism 20, the slicing mechanism 20 may be rotated away or moved toward a side far away from the objective table 10, and then the slice taking mechanism 30 transfers the sample to be measured obtained by the slicing mechanism 20 on the objective table 10 to the measuring station. When the slicing mechanism 20 and the slice taking mechanism 30 are arranged on two sides of the objective table 10 in a staggered manner along the second direction, the slicing mechanism 20 and the slice taking mechanism 30 are sequentially arranged along the sliding direction of the objective table 10, so that the slicing mechanism 20 is positioned between the slice taking mechanism 30 and the objective table 10, and the measurement process of slicing and then sampling the pole piece to be sampled is ensured.

In some embodiments, referring to fig. 1, the slide taking mechanism 30 includes a first adsorption component 31, and the first adsorption component 31 is used for adsorbing the sample to be tested on the stage 10.

Specifically, the first adsorption component 31 adsorbs and fixes the sample to be measured by using the negative pressure adsorption force, and transfers the sample to be measured to the measuring station, so that the adsorption force is removed, and the measuring station is convenient to measure the sample to be measured.

In some embodiments, the first adsorption assembly 31 comprises: the vacuum pump comprises a sucker and a vacuum pump, wherein an air inlet of the vacuum pump is communicated with the sucker.

Specifically, when the sucking disc contacts with the sample to be tested and is attached together, a sealing cavity is formed between the sucking disc and the sample to be tested, and the vacuum pump is utilized to discharge the gas in the sealing cavity, so that the sucking disc and the sample to be tested are firmly fixed together.

In some embodiments, referring to fig. 1, the slide taking mechanism 30 further includes a first driving component 32, where the first driving component 32 is connected to the first adsorption component 31, and preferably the first driving component 32 is configured to drive the first adsorption component 31 to move toward a side close to or far from the sample to be measured on the stage 10 along a third direction; wherein the third direction is perpendicular to a plane in which the first direction intersects the second direction. It will be understood that the first driving component 32 may also drive the first adsorbing component 31 to move from other directions and adsorb the sample to be tested, so long as the adsorption of the sample to be tested can be achieved. In this embodiment, the first driving unit 32 drives the first adsorption unit 31 to move along the third direction.

Specifically, the first driving component 32 may be a pneumatic cylinder, an electric push rod, a screw motor, or the like, and when the first driving component 32 drives the first adsorption component 31 to move toward a side close to the objective table 10 along the third direction, the first adsorption component 31 is convenient to adsorb the sample to be tested on the objective table 10; when the first driving component 32 drives the first adsorbing component 31 to move towards the side far away from the objective table 10 along the third direction, the adsorbed sample to be measured is transferred to the measuring station.

It is understood that the first direction may be a horizontal direction, the second direction may be a vertical direction, and the third direction may be a vertical direction.

In some embodiments, the sheet taking mechanism 30 further comprises: a second drive assembly or/and a third drive assembly; wherein,

The second driving component is used for driving the first driving component 32 to horizontally rotate and driving the sample to be measured adsorbed by the first adsorption component 31 to rotationally move to a measuring station;

The third driving assembly is configured to drive the first driving assembly 32 to linearly move along the first direction, and drive the sample to be measured adsorbed by the first adsorbing assembly 31 to linearly move to the measuring station along the first direction.

Specifically, the film taking mechanism 30 provided in the embodiment of the present application further includes a first supporting member and a second supporting member that are vertically connected, where the first supporting member is fixedly connected with the first driving component 32, the second supporting member is connected with the output end of the second driving component, and the second driving component is a motor, etc., and when the motor drives the second supporting member to rotate horizontally, the first supporting member, the first driving component 32 and the first adsorbing component 31 are driven to rotate horizontally integrally, so as to conveniently drive the sample to be measured adsorbed by the first adsorbing component 31 to move to the measuring station horizontally.

Or/and, the bottom of the second supporting piece can slide along the first direction, the third driving component is adopted to drive the second supporting piece to slide along the first direction, so that the first supporting piece, the first driving component 32 and the first adsorbing component 31 are driven to move along the first direction integrally, and the sample to be measured adsorbed by the first adsorbing component 31 is driven to move to the measuring station along the first direction linearly.

Therefore, the sheet taking mechanism 30 provided in the embodiment of the present application can horizontally rotate or/and linearly move the sample to be measured to the measuring station, and those skilled in the art can set the sample taking mechanism according to actual requirements.

In some embodiments, referring to fig. 1, the slide taking mechanism 30 is slidably disposed on the stage 10 along the second direction, so that the first adsorption component 31 is located at a position to be adsorbed by the sample to be tested.

Specifically, the slice taking mechanism 30 is driven by the driving device 50 such as a motor, so that the slice taking mechanism 30 can integrally slide along the second direction, the first adsorption component 31 is positioned at the position to be adsorbed of the sample to be detected, and the sample to be detected at different positions on the objective table 10 is conveniently adsorbed, so that the position to be adsorbed of the sample to be detected is conveniently adjusted. Such as adsorbing a plurality of samples to be tested in a first direction and adsorbing a plurality of articles to be tested in a second direction on the stage 10.

In some embodiments, the plurality of the sheet taking mechanisms 30 are arranged on two sides of the stage 10 along the second direction, or the plurality of the sheet taking mechanisms 30 are arranged on the same side of the stage 10 along the first direction.

Specifically, the application can set the number and the position layout of the sheet taking mechanisms 30 according to the actual process requirements, and the sampling efficiency of the sample to be detected can be improved by adopting a plurality of sheet taking mechanisms 30.

In some embodiments, referring to fig. 1, the slicing mechanism 20 includes a fourth drive assembly 21 and a cutter 22; the fourth driving component 21 is used for driving the cutter 22 to move towards a side close to or far from the sample to be measured on the stage 10 along the third direction.

Specifically, the slicing mechanism 20 may be a punching mechanism, and uses the pressure of a punch to slice the pole piece to be sampled rapidly. For example, if the slicing mechanism 20 includes the fourth driving assembly 21, the fourth driving assembly 21 may be a pneumatic cylinder, an electric push rod, a screw motor, or the like, the cutter 22 includes circular blades, square blades, or the like with different area sizes, and the cutter 22 is detachably connected to the second driving assembly, so that the cutter 22 with different types can be replaced according to actual requirements. When the fourth driving component 21 drives the cutter 22 to move along the third direction towards the side close to the sample to be measured on the stage 10, the cutter 22 can complete the automatic slicing operation of slicing the pole piece to be sampled according to its shape, if the cutter 22 is a circular cutter, the corresponding sample to be measured is a circular sample.

In some embodiments, referring to fig. 1, the slicing mechanism 20 is slidably disposed in the second direction such that the cutting blade 22 is in a slicing position of the pole piece to be sampled.

Specifically, the slicing mechanism 20 is driven by the driving device 50 such as a motor, so that the slicing mechanism 20 can slide along the second direction, the cutter 22 is positioned at the slicing position of the pole piece to be sampled, and slicing is conveniently performed on the pole piece to be sampled at different positions on the objective table 10, so that the slicing position of the pole piece to be sampled is conveniently adjusted. Such as slicing the pole piece to be sampled of the stage 10 along a first direction to obtain a plurality of samples to be measured, or/and slicing along a second direction to obtain a plurality of samples to be measured. The pole piece automatic sampling device provided by the embodiment of the application can be used for acquiring a plurality of samples to be detected at one time, so that the slicing efficiency of the pole piece is improved.

In some embodiments, the slicing mechanism 20 is a plurality, and the plurality of slicing mechanisms 20 are distributed on two sides of the stage 10 along the second direction; or a plurality of the slicing mechanisms 20 are distributed on the same side of the stage 10 along the first direction.

Specifically, the application can set the number and the position layout of the slicing mechanisms 20 according to the actual process requirements, and the sampling efficiency of the sample to be detected can be improved by adopting a plurality of slicing mechanisms 20.

In some embodiments, a second adsorption component is disposed on the objective table 10, and the second adsorption component is used for adsorbing and fixing the pole piece to be sampled on the objective table 10.

Specifically, the structure of the second adsorption component can be identical to that of the first adsorption component 31, the negative pressure adsorption force is utilized to adsorb the pole piece to be sampled and fix the pole piece to be sampled on the objective table 10, the slicing mechanism 20 is convenient to sample the pole piece to be sampled, the slicing stability is improved, and the consistency of each pole piece to be sampled is ensured.

In some embodiments, referring to fig. 1, the pole piece automatic sampling device further comprises a base 40, and the stage 10 is slidably disposed on the base 40 along the first direction. Wherein, a chute is formed on the base 40 along a first direction, and the stage 10 is slidably mounted in the chute.

Specifically, the base 40 is used for supporting various components such as the slicing mechanism 20 and the sampling mechanism of the pole piece automatic sampling device. The base 40 is provided with a chute along a first direction, the objective table 10 is slidably assembled into the chute, one end of the objective table 10 along the first direction is provided with a driving device 50 such as a servo motor, the objective table 10 is driven by the motor to slide along the first direction in the chute, continuous sampling processes such as slicing of the slicing mechanism 20, sampling of the slice taking mechanism 30 and the like are conveniently carried out, and automatic sampling of the pole pieces is realized.

Specifically, the testing mechanism provided by the embodiment of the application adopts the pole piece automatic sampling device, so that the automatic sampling of the pole piece can be realized, the obtained samples to be tested are consistent in size, errors caused by manual operation are avoided, and the purpose of rapidly and accurately sampling the pole piece is achieved.

In some embodiments, referring to fig. 1, the testing mechanism further includes a weighing device 60, the weighing device 60 is disposed at the measuring station, and the slide taking mechanism 30 is configured to transfer the sample to be measured obtained by the slide taking mechanism 20 from the stage 10 onto the weighing device 60.

Specifically, a weighing device 60 such as an electronic scale is arranged at the measuring station, the weight of each sample to be measured obtained by the sheet taking mechanism 30 can be weighed by the weighing device 60, and the area of the sample to be measured obtained by the cutting knife 22 is a fixed value, so that the surface density of each sample to be measured can be obtained according to the obtained weight of each sample to be measured and the area of the sample to be measured, and the quality of the pole piece to be sampled can be evaluated. Wherein, the area degree refers to the mass per unit planar area.

In some embodiments, referring to fig. 1, the testing mechanism further comprises a controller, and the signal output of the weighing device 60 is electrically connected to the signal input of the controller.

Specifically, the controller may be disposed on the terminal device 70, such as a mobile phone, a notebook, a tablet, a vehicle-mounted computer, a desktop computer, and the like. The weight information of each sample to be measured obtained by the weighing device 60 is directly sent to the terminal equipment 70 for storage and display, so that the test personnel can conveniently check and analyze the weight information. The controller provided by the embodiment of the application can also be used for controlling each driving component in the pole piece automatic sampling device, such as the first driving component 32, the second driving component and the driving device 50 corresponding to the objective table 10.

The sampling method of the pole piece automatic sampling device provided by the embodiment of the application comprises the following steps:

Cutting a pole piece to be sampled into pole pieces with the same or similar size as the objective table 10, and adsorbing and fixing the cut pole pieces by using a second adsorption component on the objective table 10;

the stage 10 is linearly movable in a first direction, and the distance of movement is controlled by a program through a controller in the driving device 50 such as a motor and the terminal device 70; the slicing mechanism 20 can linearly move along the second direction, and the moving distance is controlled by a program through a driving device 50 such as a motor and a controller in the terminal device 70; the sampling mechanism can linearly move along the second direction, and the moving distance is controlled by a program through a driving device 50 such as a motor and a controller in the terminal device 70;

The number of samples to be measured (sampling number) that the slicing mechanism 20 needs to slice is set in the terminal device 70, including the number of samples to be measured that are sliced in the first direction, the number of samples to be measured that are sliced in the second direction, and the pitch between the respective sampling points (the pitch may be set according to actual demands).

After the terminal equipment 70 sets the sampling number, the objective table 10 moves to a slicing position, and the slicing mechanism 20 slices the pole piece to be sampled on the objective table 10 to obtain a sample to be detected; the slicing mechanism 20 may slice the pole piece to be sampled on the stage 10 at different positions along the first direction or/and the second direction to obtain a plurality of samples to be detected;

After slicing is completed, the object stage 10 moves to a position to be adsorbed, a sampling mechanism adsorbs and fixes a sample to be detected on the object stage 10, and the sample to be detected is transferred to a measuring station; the sampling mechanism can absorb and transfer a plurality of samples to be measured at different positions in the first direction or/and the second direction on the object stage 10 to the measuring station one by one;

The weighing device 60 acquires the weight of each sample to be measured, and transmits the acquired weight of each sample to be measured to the terminal equipment 70 to calculate the areal density of each sample to be measured.

The testing mechanism provided by the embodiment of the application can complete the integrated and rapid operation of sampling, weighing, calculating, judging and the like of the polar plate, and achieves the purposes of rapid, intelligent, automatic and accurate testing.

The battery production line can be a full-automatic or semi-automatic battery production line, and comprises the winding needle for winding the battery cells provided by any embodiment of the application. It will be appreciated that the battery of the battery production line is composed of a process of from a cell to a module and from a module to a battery pack, wherein the smallest unit is a cell, a group of cells can form a module, and several modules can form a battery pack. The specific type of the battery in the present application is not particularly limited, and the battery may be a lithium battery, for example.

The above description is only illustrative of the preferred embodiments of the present utility model and of the principles of the technology employed. It will be appreciated by persons skilled in the art that the scope of the utility model referred to in the present utility model is not limited to the specific combinations of the technical features described above, but also covers other technical features formed by any combination of the technical features described above or their equivalents without departing from the inventive concept. Such as the above-mentioned features and the technical features disclosed in the present utility model (but not limited to) having similar functions are replaced with each other.

Claims

1. An automatic pole piece sampling device, comprising: the objective table (10), the said objective table (10) is used for placing the pole piece to be sampled;

the slicing mechanism (20) is used for slicing the pole piece to be sampled on the objective table (10) so as to obtain a sample to be detected;

And the slice taking mechanism (30) is used for transferring the sample to be measured obtained by the slice cutting mechanism (20) from the object stage (10) to a measuring station.

2. The pole piece automatic sampling device according to claim 1, wherein the objective table (10) is fixedly arranged, and the slicing mechanism (20) and the taking mechanism (30) are respectively arranged at two sides of the objective table (10);

Or the object stage (10) is arranged in a sliding way along a first direction, and the slicing mechanism (20) and the slice taking mechanism (30) are sequentially arranged on the same side of the object stage (10) along the sliding direction of the object stage (10);

Or the object stage (10) is arranged in a sliding way along a first direction, and the slicing mechanism (20) and the slice taking mechanism (30) are arranged on two sides of the object stage (10) along a second direction, wherein the second direction is intersected with the first direction.

3. The pole piece automatic sampling device according to claim 2, characterized in that when the slicing mechanism (20) and the piece taking mechanism (30) are arranged on both sides of the objective table (10) along the second direction, the slicing mechanism (20) and the piece taking mechanism (30) are symmetrically or misplaced on both sides of the objective table (10) along the second direction.

4. The pole piece automatic sampling device according to claim 2, wherein the pole piece taking mechanism (30) comprises a first adsorption component (31), and the first adsorption component (31) is used for adsorbing a sample to be detected on the objective table (10).

5. The pole piece automatic sampling device according to claim 4, characterized in that the first adsorption assembly (31) comprises: the vacuum pump comprises a sucker and a vacuum pump, wherein an air inlet of the vacuum pump is communicated with the sucker.

6. The automatic pole piece sampling device according to claim 4, wherein the pole piece taking mechanism (30) further comprises a first driving component (32), the first driving component (32) is connected with the first adsorption component (31), and the first driving component (32) is used for driving the first adsorption component (31) to be close to or far away from an upper sample to be tested of the object stage (10).

7. The automatic pole piece sampling device according to claim 6, wherein the pole piece taking mechanism (30) further comprises a second driving assembly, and the second driving assembly is used for driving the first driving assembly (32) to horizontally rotate so as to drive the sample to be measured adsorbed by the first adsorption assembly (31) to rotationally move to a measuring station;

And/or, the sheet taking mechanism (30) further comprises a third driving assembly, and the third driving assembly is used for driving the first driving assembly (32) to linearly move along the first direction and driving the sample to be measured adsorbed by the first adsorption assembly (31) to linearly move to the measuring station along the first direction.

8. The pole piece automatic sampling device according to any one of claims 4 to 7, wherein the piece taking mechanism (30) is slidably arranged on the object stage (10) along the second direction, so that the first adsorption component (31) is located at a position to be adsorbed by the sample to be detected.

9. The pole piece automatic sampling device according to claim 8, wherein the plurality of the piece taking mechanisms (30) are arranged on two sides of the object stage (10) along the second direction, or the plurality of the piece taking mechanisms (30) are arranged on the same side of the object stage (10) along the first direction.

10. The pole piece automatic sampling device according to claim 6, characterized in that the slicing mechanism (20) comprises a fourth drive assembly (21) and a cutter (22); the fourth driving component (21) is used for driving the cutting knife (22) to be close to or far away from the sample to be detected on the objective table (10).

11. The pole piece automatic sampling device according to claim 10, characterized in that the slicing mechanism (20) is slidingly arranged along the second direction so that the cutting blade (22) is in the slicing position of the pole piece to be sampled.

12. The pole piece automatic sampling device according to claim 10 or 11, characterized in that the slicing mechanism (20) is a plurality of, the plurality of slicing mechanisms (20) being distributed on both sides of the stage (10) along the second direction; or a plurality of the slicing mechanisms (20) are distributed on the same side of the object stage (10) along the first direction.

13. The pole piece automatic sampling device according to any one of claims 1 to 7, characterized in that a second adsorption assembly is provided on the stage (10) for adsorbing and fixing the pole piece to be sampled on the stage (10).

14. The pole piece automatic sampling device of any one of claims 2 to 7, further comprising a base (40), wherein the stage (10) is slidably disposed on the base (40) along the first direction.

15. The pole piece automatic sampling device according to claim 14, wherein a chute is provided in the base (40) along a first direction, and the stage (10) is slidably fitted in the chute.

16. A testing mechanism comprising the pole piece automatic sampling device of any one of claims 1 to 15.

17. The test mechanism according to claim 16, further comprising a weighing device (60), the weighing device (60) being arranged at the measuring station, the slide taking mechanism (30) being adapted to transfer a sample to be measured obtained by the slide cutting mechanism (20) from the stage (10) onto the weighing device (60).

18. The test mechanism of claim 17, further comprising a controller, wherein the signal output of the weighing device (60) is electrically connected to the signal input of the controller.

19. A battery production line comprising an automatic pole piece sampling device according to any one of claims 1 to 15 or comprising a testing mechanism according to any one of claims 16 to 18.