Electrode foil specific volume testing device

Abstract

The utility model belongs to the technical field of electrode foil specific volume testing, and particularly relates to an electrode foil specific volume testing device which solves the problem that the depth of a foil piece immersed in testing liquid cannot be accurately grasped. The electrode foil specific volume testing device comprises a testing groove containing testing liquid, a foil clamping assembly and a liquid level sensor, the foil clamping assembly and the liquid level sensor are located above the testing groove and arranged on a lifting table of a lifting mechanism, and a detection head of the liquid level sensor is flush with the lower end of a foil piece to be tested on the foil clamping assembly at the same height. Or the detection head is higher than the lower end of the to-be-detected foil, the higher distance is matched with the preset depth of the to-be-detected foil immersed in the test liquid, and a specific volume instrument assembly is connected between the test groove and the foil clamping assembly. The effects of accurately controlling the immersion depth of the foil in the test liquid and having high test result accuracy are achieved.

Description

Technical Field

[0001] This utility model belongs to the field of electrode foil specific capacitance testing technology, and specifically relates to an electrode foil specific capacitance testing device. Background Technology

[0002] In the production process of three-dimensional electrode foil, the specific volume test of the foil is an important step. The test results play a crucial role in determining whether to arrange continuous production and are of great importance for the quality control and technical departments to analyze abnormal product quality data.

[0003] The foil test can be achieved using a specific volume tester and a test tank containing the test solution. The foil is immersed in the test solution and connected to the specific volume tester by wires to form a closed test circuit, thus achieving the corresponding test effect.

[0004] However, the depth to which the foil is immersed in the test liquid will affect the specific volume test results. Currently, existing testing devices lack the relevant structure for accurately controlling the depth of foil immersion in the test liquid, making it difficult to guarantee the accuracy of the test results. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned problems in the existing technology by proposing an electrode foil specific capacitance testing device.

[0006] To achieve the innovative objectives of this utility model, the following technical solutions can be used:

[0007] An electrode foil specific volume testing device includes a test tank containing a test liquid, a foil clamping assembly and a liquid level sensor located above the test tank. The foil clamping assembly and the liquid level sensor are mounted on a lifting platform of a lifting mechanism. The detection head of the liquid level sensor is flush with the lower end of the foil to be tested on the foil clamping assembly, or the detection head is higher than the lower end of the foil to be tested, and the distance of the difference is adapted to a predetermined depth to which the foil to be tested is immersed in the test liquid. A specific volume meter assembly is connected between the test tank and the foil clamping assembly.

[0008] This invention is used to perform specific volume testing on foils, such as three-dimensional electrode foils. The test tank contains a conductive test liquid. The foil to be tested is immersed in the test liquid. The positive and negative electrodes of the specific volume meter component are electrically connected to the test liquid and the foil to be tested, respectively, forming a test circuit to achieve the specific volume test of the foil. A foil clamping component is used to clamp and fix the foil to be tested. This fixing is flexible and removable, facilitating the addition or removal of the foil after testing by the operator. The lifting platform of the lifting mechanism can move vertically up and down, enabling the foil to be tested to be immersed in or removed from the test, along with the foil clamping component. The liquid level sensor also moves synchronously. The sensor's detection head has two height settings: First, the detection head is flush with the bottom of the foil under test; the lifting mechanism stops descending when the depth detected by the detection head matches the preset immersion depth of the foil in the test liquid. Second, the detection head is higher than the foil under test, with the distance between them adapted to the preset immersion depth of the foil in the test liquid; the lifting mechanism stops descending when the detection head detects contact with the liquid surface. Both methods allow for control of the immersion height of the foil under test, ensuring the accuracy of the specific volume test. The specific structure and testing principle of the specific volume meter component are common knowledge and will not be elaborated upon.

[0009] In the above-mentioned electrode foil specific volume testing device, the lifting mechanism includes a mounting frame vertically arranged on the mounting platform, a lifting platform slidably connected to the mounting frame vertically and vertically, a lifting drive structure is provided between the lifting platform and the mounting frame, and the foil clamping assembly and liquid level sensor are arranged on the lifting platform.

[0010] The lifting platform is slidably connected to the mounting frame. The lifting drive structure is used to provide the lifting driving force for the lifting platform. Specifically, several second slide rods are vertically arranged on the mounting frame, and the lifting platform is slidably connected to the second slide rods through the connecting holes.

[0011] In the above-mentioned electrode foil specific capacitance testing device, the lifting drive structure includes a drive screw that is rotatably connected to the mounting frame and vertically arranged, the lifting platform that is slidably connected to the mounting frame, the lifting platform being provided with a drive nut that meshes with the drive screw, and the drive screw being drively connected to a rotary driver.

[0012] The lifting drive structure uses a rotary actuator to drive the drive screw to rotate, thereby controlling the lifting and moving of the drive nut. The output shaft of the rotary actuator rotates in both directions to achieve lifting control, which is stable.

[0013] In the above-mentioned electrode foil specific capacitance testing device, the lifting drive structure includes a linear driver disposed on the upper end of the mounting frame or on the mounting platform, the lifting platform is slidably connected to the mounting frame, and the output shaft of the linear driver is connected to the lifting platform.

[0014] As another feasible solution, the lifting drive structure can also directly push or pull the lifting platform to move up and down through the output end of the linear drive.

[0015] In the above-mentioned electrode foil specific volume testing device, a height adjustment structure is provided between the liquid level sensor and the lifting platform. The height adjustment structure includes a sensor bolt that engages in the threaded hole of the lifting platform, and the lower end of the sensor bolt is connected to the liquid level sensor.

[0016] The height adjustment structure is used to adjust the height of the liquid level sensor to match the height of the foil to be measured. The sensor bolt is screwed into the threaded hole of the lifting platform. The lifting action can be achieved by rotating the sensor bolt, which in turn drives the liquid level sensor connected to it to move. The operation is simple.

[0017] In the above-mentioned electrode foil specific volume testing device, at least two first sliding rods are vertically arranged below the lifting platform, and a slider is slidably connected between the first sliding rods. The slider is rotatably connected to the lower end of the sensor bolt, and the liquid level sensor is set on the slider.

[0018] The liquid level sensor is vertically slidably connected to the lifting platform via a slider and a first sliding rod. The sensor bolt is rotatably connected to the slider, ensuring that the sensor bolt can rotate smoothly relative to the slider.

[0019] In the above-mentioned electrode foil specific capacitance testing device, a measuring plate is hinged to the slider in a horizontally rotatable manner. The top surface of the measuring plate is at the same height as the bottom end of the foil to be tested, and the fan-shaped rotation path of the measuring plate is located below the foil to be tested.

[0020] The detection head is flush with or higher than the top surface of the test plate, and the distance of the higher position is adapted to the predetermined depth of the foil to be immersed in the test liquid;

[0021] The upper end of the sensor bolt has a butterfly-shaped rotating part on the bolt head, and there is a lifting clearance between the bolt head and the lifting platform.

[0022] The measuring plate can rotate horizontally. Under normal conditions, the measuring plate is rotated and retracted below or to the side of the slider. When leveling is required, it can be rotated horizontally out to the underside of the foil clamping assembly, so that the lower end of the foil to be tested is exactly in contact with the top surface of the measuring plate, achieving height positioning of the foil to be tested and ensuring that the immersion depth reaches the preset value, thus improving the accuracy of specific volume testing. Of course, the height difference between the measuring plate and the detection head is matched with the judgment logic of the lifting mechanism stopping its descent. To facilitate rotation, a butterfly-shaped rotating part is also provided on the bolt head, and the middle part of the sensor bolt's screw is screwed into the threaded hole, ensuring that the sensor bolt has sufficient space for rising and falling.

[0023] In the above-mentioned electrode foil specific capacitance testing device, the foil clamping assembly includes a metal clamping body. The lower end of the clamping body is provided with a clamping nozzle for clamping and fixing the foil, and the upper end is provided with a wire connection hole for connecting to the specific capacitance meter assembly. A quick fixing structure is provided between the clamping body and the lifting platform.

[0024] The clamp is made of metal, which enables conductive connection between the foil to be tested on the clamp and the connecting wire on the wire connection hole, ensuring the formation of the test circuit. The quick-fix structure is used to fix the clamp and the lifting platform, but the fixation is flexible and detachable, making it easy to remove the clamp to clamp the foil to be tested, and also easy to quickly fix the clamp to the lifting platform after the foil to be tested is installed, improving practicality.

[0025] In the aforementioned electrode foil specific capacitance testing device, the quick fixing structure includes a magnet disposed on the side of the lifting platform, an insulating layer between the magnet and the lifting platform, a horizontally extending, non-metallic limiting protrusion disposed on the side of the clamp near the magnet, and several horizontally extending limiting grooves vertically distributed on the side of the magnet near the clamp, the clamp being magnetically attached to the magnet, and the limiting protrusion being inserted into the limiting groove.

[0026] The quick-fixing structure achieves fixation through the magnetic attraction between the magnet and the clamp, allowing for flexible assembly and disassembly. The insulating layer blocks conductivity between the clamp and the lifting platform, preventing leakage. Furthermore, the limiting protrusions on the clamp engage with the limiting grooves of the magnet, increasing vertical support and ensuring stable clamp fixation. Multiple limiting grooves provide multiple connection points in the height direction, facilitating the alignment of the foil and measuring plate on the clamp.

[0027] In the above-mentioned electrode foil specific capacitance testing device, the specific capacitance meter assembly is connected to the foil clamping assembly and the test liquid respectively via wires or conductive connectors;

[0028] The specific volume meter assembly, lifting mechanism, and liquid level sensor are respectively connected to the PLC controller, which includes a data storage module.

[0029] The specific volume analyzer assembly, foil clamping assembly, test foil, and test liquid are connected to form a closed test circuit via wires or other appropriate conductive connectors to ensure smooth testing of the specific volume analyzer assembly. The PLC controller can be used to control the lifting mechanism's lifting action based on relevant data from the liquid level sensor, and can also be used to read the test data of the specific volume analyzer assembly and store it in the data storage module for retrieval at any time, improving data recording efficiency and accuracy. The specific structure and calculation control principle of the PLC controller are common knowledge and will not be elaborated upon.

[0030] Compared with the prior art, the present invention has the following main advantages:

[0031] 1. The foil clamping assembly is used to clamp and fix the foil to be tested. The fixing is flexible and detachable. The lifting platform can move vertically to immerse or remove the foil to be tested into the test liquid. It has a high degree of automation. The liquid level sensor also moves synchronously. The start and stop of the lifting mechanism can be controlled by the relevant signals of the detection head. The immersion height of the foil to be tested can be controlled, which ensures the accuracy of the specific volume test.

[0032] 2. The height adjustment structure is used to adjust the height of the liquid level sensor to match the height of the foil to be measured. The sensor bolt is screwed into the threaded hole of the lifting platform. The lifting action can be achieved by rotating the sensor bolt, which in turn drives the liquid level sensor connected to it to move. The operation is simple.

[0033] 3. The measuring plate can rotate horizontally. When a flat plate needs to be measured, it can be rotated horizontally out and rotated to the bottom of the foil clamping assembly to achieve the height positioning of the foil to be tested, ensuring that the immersion depth reaches the preset value and improving the accuracy of specific volume testing.

[0034] 4. The quick-fixing structure achieves fixation through the magnetic attraction between the magnet and the clamp, allowing for flexible assembly and disassembly. The insulating layer blocks conductivity between the clamp and the lifting platform, preventing leakage. Furthermore, the limiting protrusions on the clamp engage with the limiting grooves of the magnet, increasing vertical support and ensuring stable clamp fixation. Multiple limiting grooves provide multiple connection points in the height direction, facilitating the alignment of the foil and measuring plate on the clamp.

[0035] 5. The PLC controller can be used to control the lifting mechanism's lifting action based on the relevant data from the liquid level sensor. It can also be used to read the test data of the specific gravity meter component and store it in the data storage module for retrieval at any time, improving the efficiency and accuracy of data recording. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of Embodiment 1 provided by this utility model (measurement plate rotated out).

[0037] Figure 2 This is a schematic diagram of the structure of the slider and the measuring plate provided by this utility model.

[0038] Figure 3 This is a cross-sectional schematic diagram of the foil clamping assembly provided by this utility model;

[0039] Figure 4 This is a schematic diagram of the lifting mechanism of Embodiment 2 provided by this utility model.

[0040] In the diagram, test tank 1, test liquid 11,

[0041] Foil clamping assembly 2, clamp body 21, clamping nozzle 22, wire connection hole 23, magnet 24, insulating layer 25, limiting protrusion 26, limiting groove 27.

[0042] Liquid level sensor 3, detection head 31

[0043] Lifting mechanism 4, lifting platform 41, mounting bracket 42, drive screw 43, drive nut 44, rotary actuator 45, first slide rod 46, threaded hole 47, linear actuator 48, second slide rod 49.

[0044] 5. Height adjustment structure; 51. Sensor bolt; 52. Slider; 53. Measuring plate; 54. Butterfly rotating part; 55. Lifting allowable clearance.

[0045] 6. Specific gravity meter component

[0046] Foil to be tested 7

[0047] PLC controller 8. Detailed Implementation

[0048] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0049] Example 1

[0050] Specific implementation examples Figure 1-3 As shown, this electrode foil specific volume testing device includes a test tank 1 containing a test liquid 11, a foil clamping assembly 2 and a liquid level sensor 3 located above the test tank 1. The foil clamping assembly 2 and the liquid level sensor 3 are mounted on the lifting platform 41 of the lifting mechanism 4, and the detection head 31 of the liquid level sensor 3 is flush with the lower end of the foil to be tested 7 on the foil clamping assembly 2. A specific volume meter assembly 6 is connected between the test tank 1 and the foil clamping assembly 2.

[0051] Specifically, this invention is used to perform specific volume testing on three-dimensional electrode foils. The test tank 1 contains a corresponding conductive test liquid 11. The foil 7 to be tested is immersed in the test liquid 11. The positive and negative poles of the specific volume meter component 6 are electrically connected to the test liquid 11 and the foil 7 to be tested, respectively, forming a test circuit to perform specific volume testing on the foil. The foil clamping component 2 is used to clamp and fix the foil 7 to be tested. This fixing is flexible and detachable, making it easy for operators to add the foil 7 to be tested or remove the tested foil. The lifting platform 41 of the lifting mechanism 4 can move vertically up and down, and can carry the foil clamping component 2 to immerse or remove the foil 7 to be tested into the test liquid 11. The liquid level sensor 3 also moves synchronously. The detection head 31 is flush with the lower end of the foil 7 to be tested. That is, when the depth detected by the detection head 31 is the same as the preset depth of the foil immersed in the test liquid 11, the lifting mechanism 4 stops descending, which can realize the control of the immersion height of the foil 7 to be tested and ensure the accuracy of the specific volume test.

[0052] like Figure 1 As shown, the lifting mechanism 4 includes a mounting frame 42 vertically mounted on the mounting platform. A lifting platform 41 is slidably connected to the mounting frame 42, allowing for vertical lifting. A lifting drive structure is provided between the lifting platform 41 and the mounting frame 42. The foil clamping assembly 2 and the liquid level sensor 3 are mounted on the lifting platform 41. The lifting drive structure includes a drive screw 43 rotatably connected to the mounting frame 42 and vertically mounted. The lifting platform 41 is slidably connected to the mounting frame 42. A drive nut 44 is provided on the lifting platform 41 that meshes with the drive screw 43. The drive screw 43 and the rotary actuator 45 are connected in a transmission manner.

[0053] Specifically, the lifting platform 41 is slidably connected to the mounting frame 42. The lifting drive structure provides the lifting driving force for the lifting platform 41. Specifically, four second slide rods 49 are vertically arranged on the mounting frame 42, and the lifting platform 41 is slidably connected to the second slide rods 49 through connecting holes. The lifting drive structure drives the drive screw 43 to rotate through the rotary driver 45 to achieve the effect of controlling the lifting and moving of the drive nut 44. The output shaft of the rotary driver 45 rotates in both directions to achieve lifting control, and the control is stable.

[0054] like Figure 1 As shown, a height adjustment structure 5 is provided between the liquid level sensor 3 and the lifting platform 41. The height adjustment structure 5 includes a sensor bolt 51 that engages with a threaded hole 47 in the lifting platform 41. The lower end of the sensor bolt 51 is connected to the liquid level sensor 3. Two first sliding rods 46 are vertically arranged below the lifting platform 41. A slider 52 is slidably connected between the first sliding rods 46. The slider 52 is rotatably connected to the lower end of the sensor bolt 51, and the liquid level sensor 3 is mounted on the slider 52.

[0055] Specifically, the height adjustment structure 5 is used to adjust the height of the liquid level sensor 3 to match the height of the foil 7 to be measured. The sensor bolt 51 is screwed into the threaded hole 47 of the lifting platform 41. The lifting action can be achieved by rotating the sensor bolt 51, thereby driving the liquid level sensor 3 connected to it to move. The operation is simple. The liquid level sensor 3 is vertically slidably connected to the lifting platform 41 through the slider 52 and the first sliding rod 46. The sensor bolt 51 and the slider 52 are rotatably connected, ensuring that the sensor bolt 51 can rotate smoothly relative to the slider 52.

[0056] like Figure 1 , 2 As shown, a measuring plate 53 is hinged to the slider 52 in a horizontally rotatable manner. The top surface of the measuring plate 53 is at the same height as the bottom end of the foil 7 to be tested, and the fan-shaped rotation path of the measuring plate 53 is located below the foil 7 to be tested. The detection head 31 is flush with the top surface of the measuring plate 53. A butterfly rotating part 54 is provided on the bolt head at the upper end of the sensor bolt 51, and there is a lifting allowable gap 55 between the bolt head and the lifting platform 41.

[0057] Specifically, the measuring plate 53 can rotate horizontally. Under normal conditions, the measuring plate 53 is rotated and placed in the receiving groove on the side of the slider 52. When leveling is required, it can be rotated horizontally out and rotated to the bottom of the foil clamping assembly 2, so that the lower end of the foil to be tested 7 and the top surface of the measuring plate 53 are exactly in contact, realizing the height positioning of the foil to be tested 7, ensuring that the immersion depth reaches the preset value, and improving the accuracy of the specific volume test. In order to facilitate rotation, a butterfly rotating part 54 is also provided on the bolt head. The middle part of the screw of the sensor bolt 51 is screwed into the threaded hole 47, ensuring that the sensor bolt 51 has sufficient space for rising and falling.

[0058] like Figure 1 , 3 As shown, the foil clamping assembly 2 includes a metal clamping body 21. The lower end of the clamping body 21 is provided with a clamping nozzle 22 for clamping and fixing the foil sheet, and the upper end is provided with a wire connection hole 23 for connecting to the volumetric analyzer assembly 6. A quick-fixing structure is provided between the clamping body 21 and the lifting platform 41. The quick-fixing structure includes a magnet 24 disposed on the side of the lifting platform 41. An insulating layer 25 is provided between the magnet 24 and the lifting platform 41. A horizontally extending, non-metallic limiting protrusion 26 is provided on the side of the clamping body 21 near the magnet 24. Several horizontally extending limiting grooves 27 are vertically distributed on the side of the magnet 24 near the clamping body 21. The clamping body 21 is magnetically attached to the magnet 24, and the limiting protrusion 26 is inserted into the limiting groove 27.

[0059] Specifically, the clamp 21 is made of metal, enabling conductive connection between the foil 7 to be tested on the clamp 22 and the connecting wire on the wire connection hole 23, ensuring the formation of the test circuit. The quick-fix structure is used to fix the clamp 21 and the lifting platform 41, but this fixation is flexible and removable, making it easy to remove the clamp 21 to clamp the foil 7, and also easy to quickly fix the clamp 21 onto the lifting platform 41 after installing the foil 7, improving practicality. The quick-fix structure is specifically fixed by the magnetic attraction between the magnet 24 and the clamp 21, allowing for flexible assembly and disassembly. The insulating layer 25 is used to block the conductivity between the clamp 21 and the lifting platform 41, preventing leakage and other issues. In addition, the limiting protrusion 26 on the clamp 21 is engaged in the limiting groove 27 of the magnet 24, which improves the support force in the vertical direction and ensures the stable fixation of the clamp 21. Moreover, multiple limiting grooves 27 are provided, so that the clamp 21 has multiple connection positions in the height direction, which makes it easy to achieve the same height state of the foil and the measuring plate 53 on the clamp 21.

[0060] In this embodiment, the specific volume meter assembly 6 is connected to the foil clamping assembly 2 and the test liquid 11 respectively via wires or conductive connectors; the specific volume meter assembly 6, the lifting mechanism 4 and the liquid level sensor 3 are respectively connected to the PLC controller 8, and the PLC controller 8 includes a data storage module.

[0061] Specifically, the volumetric analyzer assembly 6, the foil clamping assembly 2, the foil to be tested 7, and the test liquid 11 are connected to form a closed test circuit through wires or other corresponding conductive connectors to ensure that the volumetric analyzer assembly 6 can be tested smoothly. The PLC controller 8 can be used to control the lifting action of the lifting mechanism 4 according to the relevant data of the liquid level sensor 3, and can also be used to read the test data of the volumetric analyzer assembly 6 and store it in the data storage module for retrieval at any time, thereby improving the efficiency and accuracy of data recording.

[0062] Specific working principle: After wiring, when testing the specific volume of the foil 7 to be tested, remove the clamp 21, clamp the foil 7 to be tested, then rotate the measuring plate 53 out, and slightly attach the lower end of the foil 7 to the top surface of the measuring plate 53. Magnetically attach the clamp 21 to the magnet 24, and embed the limiting protrusion 26 into the corresponding limiting groove 27. Then, start the test via the PLC controller 8. The rotary driver 45 operates, the lifting platform 41 descends, and the detection head 31 and the lower end of the foil 7 to be tested are immersed in water. When the depth detected by the detection head 31 reaches the preset value, the rotary driver 45 stops and remains stationary. At this time, the specific volume meter assembly 6 tests the specific volume of the foil and stores the relevant data on the PLC controller 8. After the test is completed, the rotary driver 45 reverses its direction, the lifting platform 41 rises and resets, and the operator can then remove the clamp 21 to replace the new foil 7 for a new test.

[0063] Example 2

[0064] The working principle of this embodiment is basically the same as that of embodiment 1, except that the setting height of the detection head 31 of the liquid level sensor 3 is different.

[0065] In this embodiment, the detection head 31 is higher than the lower end of the foil 7 to be tested and the top surface of the test plate 53, and the distance of the higher position is adapted to the predetermined depth of the foil 7 to be immersed in the test liquid 11.

[0066] Specifically, the distance between the detection head 31 and the foil 7 to be tested is adapted to the preset depth of the foil 7 to be tested immersed in the test liquid 11. When the detection head 31 detects contact with the liquid surface, the lifting mechanism 4 stops descending.

[0067] Example 3

[0068] The working principle of this embodiment is basically the same as that of embodiment 1, except for the lifting drive structure.

[0069] Specific implementation examples Figure 4 As shown, the lifting drive structure includes a linear driver 48 disposed on the upper end of the mounting frame 42 or on the mounting platform, a lifting platform 41 slidably connected to the mounting frame 42, and the output shaft of the linear driver 48 connected to the lifting platform 41.

[0070] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. An electrode foil specific capacity testing device characterized by, The utility model provides a test device, including the test groove (1) containing test liquid (11) and the foil clamping assembly (2) and liquid level sensor (3) above test groove (1), foil clamping assembly (2) and liquid level sensor (3) are arranged on the lifting platform (41) of lifting mechanism (4), and the detection head (31) of liquid level sensor (3) is with the foil (7) of foil clamping assembly (2) lower end isoparic, or detection head (31) is higher than the foil (7) lower end, and the distance of being higher is adapted to the predetermined depth of foil (7) immersion test liquid (11), and the specific volume gauge assembly (6) is connected between test groove (1) and foil clamping assembly (2).

2. The electrode foil specific capacity testing device according to claim 1, characterized by, The lifting mechanism (4) includes the mounting frame (42) vertically arranged on the mounting table, the mounting frame (42) is slidably connected with the lifting platform (41) vertically, the lifting platform (41) and the mounting frame (42) are provided with a lifting drive structure, and the foil clamping assembly (2) and the liquid level sensor (3) are arranged on the lifting platform (41).

3. The electrode foil specific capacity testing apparatus according to claim 2, characterized by, The lifting drive structure includes a drive screw (43) rotatably connected to the mounting frame (42) and vertically arranged, the lifting platform (41) is slidably connected to the mounting frame (42), the lifting platform (41) is provided with a drive nut (44) engaged with the drive screw (43), and the drive screw (43) is drivingly connected with a rotary driver (45).

4. The electrode foil specific capacity testing apparatus according to claim 2, characterized by, The lifting drive structure includes a linear driver (48) arranged on the upper end of the mounting frame (42) or the mounting table, the lifting platform (41) is slidably connected to the mounting frame (42), and the output shaft of the linear driver (48) is connected with the lifting platform (41).

5. The electrode foil specific capacity testing apparatus according to claim 1, wherein The height adjusting structure (5) is arranged between the liquid level sensor (3) and the lifting platform (41), the height adjusting structure (5) includes a sensor bolt (51) engaged in the threaded hole (47) of the lifting platform (41), and the lower end of the sensor bolt (51) is connected with the liquid level sensor (3).

6. The electrode foil specific capacity testing apparatus according to claim 5, characterized by At least two first sliding rods (46) are vertically arranged below the lifting platform (41), the first sliding rods (46) are slidably connected with a sliding block (52), the sliding block (52) is rotatably connected with the lower end of the sensor bolt (51), and the liquid level sensor (3) is arranged on the sliding block (52).

7. The electrode foil specific capacity testing apparatus according to claim 6, characterized by The sliding block (52) is rotatably hinged with a leveling plate (53), the top surface of the leveling plate (53) is level with the bottom end of the foil (7), and the fan-shaped rotating path of the leveling plate (53) is below the foil (7); The detection head (31) is level with or higher than the top surface of the leveling plate (53), and the distance of being higher is adapted to the predetermined depth of the foil (7) immersed in the test liquid (11); A butterfly-shaped rotating part (54) is arranged on the bolt head of the upper end of the sensor bolt (51), and the bolt head and the lifting platform (41) have a lifting allowable gap (55).

8. The electrode foil specific capacity testing apparatus according to claim 1, characterized by, The foil clamping assembly (2) comprises a clamping body (21) made of metal, the lower end of the clamping body (21) is provided with a clamping nozzle (22) for clamping and fixing a foil, and the upper end is provided with a wire connecting hole (23) for connecting with a pycnometer assembly (6), and the clamping body (21) and the lifting platform (41) are provided with a quick fixing structure.

9. The electrode foil specific capacity testing apparatus according to claim 8, characterized by, The quick fixing structure comprises a magnet (24) arranged on the side of the lifting platform (41), the magnet (24) and the lifting platform (41) are provided with an insulating layer (25), the clamping body (21) is provided with a horizontal extending limiting protrusion (26) made of non-metal material near the magnet (24), the magnet (24) is vertically distributed with a plurality of horizontal extending limiting grooves (27) near the clamping body (21), the clamping body (21) is attached to the magnet (24) by magnetic force, and the limiting protrusion (26) is inserted into the limiting groove (27).

10. The electrode foil specific capacity testing device according to any one of claims 1 to 9, characterized by, The pycnometer assembly (6) is connected with the foil clamping assembly (2) and the test liquid (11) through wires or conductive connecting pieces respectively. The pycnometer assembly (6), the lifting mechanism (4) and the liquid level sensor (3) are connected with a PLC controller (8) respectively, and the PLC controller (8) comprises a data storage module.

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