Tension testing device and battery cell production system

Abstract

The utility model belongs to the technical field of testing tools, and particularly relates to a tension testing device and a battery cell production system, and the tension testing device comprises a control assembly, a clamping assembly, a drawing assembly and a driving assembly. Wherein the clamping assembly, the drawing assembly and the driving assembly are electrically connected with the control assembly, the drawing assembly is located on one side of the clamping assembly, and the driving assembly is connected with the drawing assembly; the control assembly is suitable for driving the clamping assembly to clamp the positioning part of the object to be detected; the control assembly is suitable for driving the drawing assembly to clamp the drawing part of the object to be detected; the control assembly is suitable for controlling the driving assembly to drive the drawing assembly to apply pulling force to the drawing part, so that the control assembly detects a corresponding pulling force value; according to the utility model, the control assembly is matched with the clamping assembly, the drawing assembly and the driving assembly to realize automatic detection of the pulling force between the battery cell and the cover plate, one-by-one detection can be realized without influencing the production efficiency, the pulling force between the battery cell and the cover plate can be measured in a standard manner, the measurement accuracy is ensured, and the production efficiency is improved. And the situation of poor batch caused by unstable welding is reduced, and the product quality is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of testing tooling, and in particular relates to a tension testing device and a battery core production system. Background Art

[0002] During the actual production process of battery cells, the welding between the battery cells and the cover plates needs to be tensile controlled. However, there is currently no tensile testing tooling on the market to test the assembled battery cells. The existing control method is through manual random inspection.

[0003] However, manual sampling has a certain periodicity, and it is difficult to test every battery cell. Manual testing of battery cells not only has high operating requirements, but also has problems of false detection and missed detection. The workload is also large, so there are quality risks, which will increase the risk of defective battery cells.

[0004] Therefore, it is urgent to develop a new tensile testing device and battery cell production system to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a tension testing device and a battery core production system.

[0006] In order to solve the above technical problems, the utility model provides a tensile testing device, which includes: a control component, a clamping component, a pulling component and a driving component; wherein the clamping component, the pulling component, the driving component and the control component are electrically connected, the pulling component is located on one side of the clamping component, and the driving component is connected to the pulling component; the control component is suitable for driving the clamping component to clamp the positioning part of the object to be tested; the control component is suitable for driving the pulling component to clamp the pulling part of the object to be tested; and the control component is suitable for controlling the driving component to drive the pulling component to apply tension to the pulling part, so that the control component detects the corresponding tension value.

[0007] Specifically, the clamping assembly includes: at least two clamping driving members; the two clamping driving members are arranged opposite to each other, and the two clamping driving members are electrically connected to the control assembly; the control assembly is suitable for driving the two clamping driving members to move toward or away from each other to clamp or release the positioning part of the object to be tested.

[0008] Specifically, the clamping drive member is connected to the buffer block.

[0009] Specifically, the pulling assembly includes: a connecting plate, an opening and closing driving member and at least two claws; the driving assembly is connected to the top of the connecting plate, the opening and closing driving member is installed at the bottom of the connecting plate, the opening and closing driving member is electrically connected to the control assembly, and each of the claws is connected to the opening and closing driving member respectively; the control assembly is suitable for driving the opening and closing driving member to drive the two claws to move toward or away from each other to clamp or release the pulling part of the object to be tested.

[0010] Specifically, the pulling assembly further includes: two side mounting plates; the two side mounting plates are respectively connected to the opening and closing driving members, and the two side mounting plates are arranged opposite to each other; at least one hook claw is installed on each side mounting plate.

[0011] Specifically, the driving assembly includes: a tension driving member; the tension driving member is connected to the top of the connecting plate, and the tension driving member is electrically connected to the control assembly.

[0012] Specifically, the driving component further includes: a tension collector; the tension collector is respectively connected to the tension driving member and the connecting plate, and the tension collector is electrically connected to the control component.

[0013] Specifically, the control component includes: a controller and a display screen; the clamping component, the pulling component, the driving component, the display screen and the controller are electrically connected.

[0014] On the other hand, the utility model provides a battery cell production system, which comprises: a plurality of tension testing devices as described above; wherein each of the tension testing devices is sequentially installed on a corresponding testing station.

[0015] The beneficial effect of the utility model is that the utility model realizes automatic detection of the tension between the battery cell and the cover plate by cooperating with the control component with the clamping component, the pulling component and the driving component, can realize one-by-one detection without affecting the production efficiency, and can standardize the measurement of the tension between the battery cell and the cover plate, thereby ensuring the accuracy of the measurement, reducing the situation of batch defects caused by loose welding, and improving product quality.

[0016] Other features and advantages of the present invention will be set forth in the following description, and in part will become apparent from the description, or may be understood by implementing the present invention.

[0017] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a structural diagram of the tensile testing device of the utility model;

[0020] Figure 2It is a principle block diagram of the tension testing device of the utility model.

[0021] In the figure:

[0022] 1. Control component; 11. Controller; 12. Display screen;

[0023] 2. Clamping assembly; 21. Clamping drive member; 22. Buffer block;

[0024] 3. Pulling assembly; 31. Connecting plate; 32. Opening and closing driving member; 33. Hook; 34. Side mounting plate;

[0025] 4. driving assembly; 41. tension driving member; 42. tension collector;

[0026] 5. Object to be measured; 51. Positioning unit; 52. Drawing unit. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Embodiment 1, in this embodiment, as Figure 1 to Figure 2 As shown, this embodiment provides a tension testing device, which includes: a control component 1, a clamping component 2, a pulling component 3 and a driving component 4; wherein the clamping component 2, the pulling component 3, the driving component 4 are electrically connected to the control component 1, the pulling component 3 is located on one side of the clamping component 2, and the driving component 4 is connected to the pulling component 3; the control component 1 is suitable for driving the clamping component 2 to clamp the positioning portion 51 of the object to be tested 5; the control component 1 is suitable for driving the pulling component 3 to clamp the pulling portion 52 of the object to be tested 5; and the control component 1 is suitable for controlling the driving component 4 to drive the pulling component 3 to apply tension to the pulling portion 52, so that the control component 1 detects the corresponding tension value.

[0029] In this embodiment, this embodiment realizes automatic detection of the tension between the battery cell and the cover plate by cooperating with the control component 1, the clamping component 2, the pulling component 3, and the driving component 4. It can realize one-by-one detection without affecting the production efficiency, and can standardize the measurement of the tension between the battery cell and the cover plate to ensure the accuracy of the measurement, reduce the batch defects caused by loose welding, and improve product quality.

[0030] Specifically, the object to be tested 5 is a combination of a battery cell and a cover plate, the positioning portion 51 of the object to be tested 5 is the battery cell, and the pulling portion 52 of the object to be tested 5 is the cover plate.

[0031] In order to achieve the positioning and clamping of the object to be tested 5, the clamping assembly 2 includes: at least two clamping driving members 21; the two clamping driving members 21 are arranged opposite to each other, and the two clamping driving members 21 are electrically connected to the control assembly 1; the control assembly 1 is suitable for driving the two clamping driving members 21 to move toward or away from each other to clamp or release the positioning portion 51 of the object to be tested 5.

[0032] Specifically, the clamping drive member 21 may be a telescopic cylinder.

[0033] In this embodiment, two clamping drive members 21 are provided, and the two clamping drive members 21 are respectively installed on corresponding workstations. When the manipulator places the object to be tested 5 between the two clamping drive members 21, the control component 1 controls the two clamping drive members 21 to move toward each other until the two clamping drive members 21 clamp the positioning portion 51 of the object to be tested 5. When the test is completed, the control component 1 controls the two clamping drive members 21 to move back to each other, and releases the positioning portion 51 of the object to be tested 5, so that the manipulator can take the object to be tested 5 from between the two clamping drive members 21.

[0034] In order to avoid damaging the object to be tested 5 , the clamping drive 21 is connected to a buffer block 22 .

[0035] In this embodiment, the clamping drive member 21 is aligned with the positioning portion 51 of the object to be tested 5 through the buffer block 22. A flexible layer is provided on the surface of the buffer block 22 to avoid hard contact between the clamping drive member 21 and the object to be tested 5, thereby protecting the object to be tested 5.

[0036] In order to realize the tensile test of the object to be tested 5, the pulling component 3 includes: a connecting plate 31, an opening and closing driving member 32 and at least two hooks 33; the driving component 4 is connected to the top of the connecting plate 31, the opening and closing driving member 32 is installed at the bottom of the connecting plate 31, the opening and closing driving member 32 is electrically connected to the control component 1, and each of the hooks 33 is connected to the opening and closing driving member 32 respectively; the control component 1 is suitable for driving the opening and closing driving member 32 to drive the two hooks 33 to move toward or away from each other, so as to clamp or release the pulling part 52 of the object to be tested 5.

[0037] Specifically, the opening and closing driving member can be an opening and closing cylinder.

[0038] In this embodiment, the connecting plate 31 is moved to the set position under the drive of the driving component 4. At this time, the opening and closing driving component drives the two hook claws 33 to move toward each other to clamp the pulling portion 52 of the object to be tested 5. Then the driving component 4 pulls the connecting plate 31 to perform a tensile test on the object to be tested 5. After the test, the opening and closing driving component 32 drives the two hook claws 33 to move backwards to release the pulling portion 52 of the object to be tested 5, so that the object to be tested 5 can be removed from the testing station.

[0039] In this embodiment, four hook claws 33 are provided, two hook claws 33 form a group, and two driving parts of the opening and closing driving member 32 are respectively connected to a group of hook claws 33.

[0040] In order to facilitate the installation of the hook claw 33, the pulling assembly 3 also includes: two side mounting plates 34; the two side mounting plates 34 are respectively connected to the opening and closing driving member 32, and the two side mounting plates 34 are arranged opposite to each other; at least one hook claw 33 is installed on each side mounting plate 34.

[0041] In this embodiment, the side mounting plate 34 serves to improve the stability of the structure and realize the overall movement of the plurality of hook claws 33 .

[0042] In order to ensure the accuracy and automation of the tension test, the driving component 4 includes: a tension driving member 41; the tension driving member 41 is connected to the top of the connecting plate 31, and the tension driving member 41 is electrically connected to the control component 1.

[0043] Specifically, the tension driving member 41 may be a telescopic cylinder.

[0044] In this embodiment, the control assembly 1 drives the tension driving member 41 to pull the connecting plate 31 , thereby achieving a tension test on the object to be tested 5 .

[0045] In order to collect test data in real time, the driving component 4 further includes: a tension collector 42 ; the tension collector 42 is respectively connected to the tension driving member 41 and the connecting plate 31 , and the tension collector 42 is electrically connected to the control component 1 .

[0046] In this embodiment, the tension collector 42 may adopt a pressure sensor to achieve accurate collection of the tension.

[0047] In order to facilitate intuitive observation of tension data, the control component 1 includes: a controller 11 and a display screen 12; the clamping component 2, the pulling component 3, the driving component 4, the display screen 12 are electrically connected to the controller 11.

[0048] In this embodiment, the clamping drive 21 clamps and fixes the battery cell and positions the battery cell at the same time. Then the tension drive 41 extends (the opening and closing drive 32 is in the open state at this time), the opening and closing drive 32 closes after the tension drive 41 extends to the right position, the hook 33 hooks and clamps the cover plate, the tension drive 41 retracts, and at the same time the tension collector 42 collects data and uploads it to the controller 11, the display screen 12 displays the tension value, and transmits a qualified or NG signal according to the value.

[0049] Embodiment 2, based on embodiment 1, this embodiment provides a battery cell production system, which includes: a plurality of tensile testing devices as provided in embodiment 1; wherein each of the tensile testing devices is sequentially installed on a corresponding testing station.

[0050] In summary, the utility model realizes automatic detection of the tension between the battery cell and the cover plate by cooperating with the control component, the clamping component, the pulling component and the driving component. It can realize one-by-one detection without affecting the production efficiency, and can standardize the measurement of the tension between the battery cell and the cover plate to ensure the accuracy of the measurement, reduce the batch defects caused by loose welding, and improve product quality.

[0051] All devices (parts without specific structure) selected in this application are universal standard parts or parts known to those skilled in the art, and their structures and principles can be known by those skilled in the art through technical manuals or conventional experimental methods. In addition, the software programs involved in this application are all prior art, and this application does not involve any improvement to the software programs.

[0052] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0054] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, and the indirect coupling or communication connection of devices or units can be electrical, mechanical or other forms.

[0055] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0056] In addition, each functional unit in each embodiment of the present utility model may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0057] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A tensile testing device, It is characterized in that include: Control components, clamping components, pulling components and driving components; in The clamping assembly, the pulling assembly, the driving assembly and the control assembly are electrically connected, the pulling assembly is located on one side of the clamping assembly, and the driving assembly is connected to the pulling assembly; The control component is suitable for driving the clamping component to clamp the positioning part of the object to be measured; The control component is suitable for driving the drawing component to clamp the drawing portion of the object to be tested; as well as The control component is suitable for controlling the driving component to drive the pulling component to apply a pulling force to the pulling portion, so that the control component detects a corresponding pulling force value.

2. The tensile testing device according to claim 1, It is characterized in that The clamping assembly comprises: at least two clamping driving members; The two clamping driving members are arranged opposite to each other, and the two clamping driving members are electrically connected to the control assembly; The control assembly is suitable for driving the two clamping driving members to move toward or away from each other so as to clamp or release the positioning portion of the object to be measured.

3. The tensile testing device according to claim 2, It is characterized in that The clamping drive member is connected to the buffer block.

4. The tensile testing device according to claim 1, It is characterized in that The pulling assembly comprises: a connecting plate, an opening and closing driving member and at least two hook claws; The driving assembly is connected to the top of the connecting plate, the opening and closing driving member is installed at the bottom of the connecting plate, the opening and closing driving member is electrically connected to the control assembly, and each of the hooks is connected to the opening and closing driving member respectively; The control assembly is suitable for driving the opening and closing driving member to drive the two hook claws to move toward or away from each other, so as to clamp or release the drawing portion of the object to be tested.

5. The tensile testing device according to claim 4, It is characterized in that The pulling assembly further comprises: two side mounting plates; The two side mounting plates are respectively connected to the opening and closing driving member, and the two side mounting plates are arranged opposite to each other; At least one hook is mounted on each of the side mounting plates.

6. The tensile testing device according to claim 4, It is characterized in that The driving assembly comprises: a tension driving member; The tension driving member is connected to the top of the connecting plate, and the tension driving member is electrically connected to the control component.

7. The tensile testing device according to claim 6, It is characterized in that The driving assembly further comprises: a tension collector; The tension collector is respectively connected to the tension driving member and the connecting plate, and the tension collector is electrically connected to the control component.

8. The tensile testing device according to claim 1, It is characterized in that The control component includes: a controller and a display screen; The clamping assembly, the pulling assembly, the driving assembly, the display screen and the controller are electrically connected.

9. A battery cell production system, It is characterized in that include: A tensile testing device as claimed in any one of claims 1 to 8; in Each of the tensile testing devices is sequentially installed on a corresponding testing station.

Images