Detection device for storage battery electrode plate

Abstract

The invention relates to a detection device for a storage battery pole plate in the field of battery pole plate detection devices, which comprises a box body, a detection box is mounted at the upper end of the box body, and a test assembly, a detection assembly and a fixing assembly are arranged in the detection box; the test assembly comprises a pair of electromagnetic devices, the top end of the inner wall of the detection box is fixedly connected with electric guide rails matched with the electromagnetic devices, the movable ends of the electric guide rails are provided with lifting rotating structures matched with the telescopic structures, the top ends of the pair of electromagnetic devices are fixedly connected with the telescopic structures, and the telescopic structures comprise outer sleeves; a fixed ring is fixedly connected in the outer sleeve, a movable rod is inserted into the fixed ring, a compression spring is connected between the top end of the movable rod and the bottom end of the fixed ring, and a pair of electric bolts is installed in the fixed ring; according to the invention, the impact test and the pressurization test can be automatically carried out on the storage battery plate, the storage battery plate can be automatically detected in the test process, the detection efficiency is high, and the detection requirements of various types of storage battery plates can be easily met.

Description

Technical Field

[0001] The present invention relates to a battery plate detection device, in particular to a battery plate detection device applied in the field of battery plate detection devices. Background Art

[0002] Existing battery plate inspection devices are key equipment for ensuring battery quality, and they play a vital role in battery production and maintenance. These devices usually use advanced imaging technology and electrochemical analysis methods to detect defects, thickness, flatness, and electrochemical properties of battery plates.

[0003] Battery plate inspection equipment usually includes a visual inspection system and an electrochemical test system. The visual inspection system uses a high-resolution camera and image processing software to identify scratches, dents, warpage and other physical defects on the plate. The electrochemical test system uses electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV) and other techniques to evaluate the electrochemical properties of the plate, such as conductivity, capacity and cycle stability.

[0004] In battery production, these inspection devices are used to ensure that each plate meets quality standards, thereby improving the performance and reliability of the finished battery. In battery maintenance, they are used to regularly check the health of the battery, prevent failures and extend battery life.

[0005] The specification of Chinese invention patent CN108672315B discloses a lithium battery plate weighing instrument, including a bottom plate, a base, a support rod, a weight frame, a conical block, a weighing box, a detection unit and a feeding unit; the invention arranges a feeding unit to transport the plates, and puts the plates to be weighed in the weighing box. The weighing box sinks under the action of gravity. When the weighing box sinks more than the set value, the detection unit works to screen out unqualified plates.

[0006] The specification of Chinese invention patent CN115235921B discloses a detection device for battery plate production, including a detection box and a screw rotating on its inner wall, the outer wall of the screw is controllably connected to a mounting seat for sliding and rotating, and a pendulum assembly. The invention can use the impact of the pendulum movement to perform collision detection on the detection object, and at the same time can collect and weigh the active materials that have fallen off and are in a loose state.

[0007] The existing battery plate detection device is not convenient for quickly detecting the plate during and after the plate impact test, which affects the efficiency and accuracy of the detection. Summary of the invention

[0008] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that the existing battery plate detection device is not convenient for quickly detecting the plate during and after the plate impact test, which affects the efficiency and accuracy of the detection.

[0009] In order to solve the above problems, the present invention provides a detection device for battery plates, comprising a box body, a detection box is installed on the upper end of the box body, and a test component, a detection component and a fixing component are arranged in the detection box; The test assembly includes a pair of electromagnetic devices, the top of the inner wall of the detection box is fixedly connected with an electric guide rail matching the electromagnetic device, the movable end of the electric guide rail is installed with a lifting and rotating structure matching the telescopic structure, the tops of the pair of electromagnetic devices are fixedly connected with the telescopic structure, the telescopic structure includes an outer sleeve, a fixed ring is fixedly connected inside the outer sleeve, a movable rod is plugged on the fixed ring, a compression spring is connected between the top of the movable rod and the bottom of the fixed ring, and a pair of electric plugs are installed in the fixed ring; the top of the fixed ring is detachably connected with a test block, the side wall of the movable rod is provided with a fixing groove matching the electric plug, and the top of the movable rod is installed with a permanent magnet matching the electromagnetic device; The fixed assembly includes an electric slide rail, a pair of pads are fixedly connected to both sides of the electric slide rail, a first stepper motor is fixedly connected to the movable end of the electric slide rail, a fixed frame is fixedly connected to the power output end of the first stepper motor, and the fixed frame is rotatably connected to the movable end of the electric slide rail, and a pair of clamps are installed at both ends of the fixed frame; The detection assembly includes a detector arranged between a pair of electromagnetic devices, the detector includes a mounting plate, an electric telescopic rod is fixedly connected to the mounting plate, and a positioning hole matching the movable end of the electric telescopic rod is opened at one end of the fixed frame away from the electric slide rail; A detection sensor matching the fixing component is installed on the mounting plate.

[0010] In the above-mentioned detection device for battery plates, it is convenient to perform impact and pressure tests on the battery plates, and it is convenient to perform rapid detection after the test.

[0011] As a further improvement of the present application, the detection sensor includes an image acquisition device and a laser sensor. The image acquisition device is used for image detection when the fixed frame is in a horizontal state, and the laser sensor is used for image detection when the fixed frame is in a vertical state.

[0012] As a further improvement of the present application, when the fixed frame rotates to a horizontal state, the image acquisition device acquires an image of the electrode plate on the fixed frame, and the top of the fixed frame fits against the surface of the pad. Before the fixed frame rotates to a horizontal state, the electric guide rail is controlled to work so that a pair of electromagnetic devices move away from each other.

[0013] As a further improvement of the present application, the fixed frame includes a main frame body with a hole in the middle, a pressure sensing film is detachably laid on the main frame body, and a plurality of pressure sensing nodes are arranged on the pressure sensing film.

[0014] As another improvement of the present application, the electric guide rail and the lifting and rotating structure are both provided with a self-locking structure, and the lifting and rotating structure includes a second stepper motor installed at the movable end of the electric guide rail, and the power output end of the second stepper motor is fixedly connected to the electric lifting rod.

[0015] As another improvement of the present application, a one-way air inlet pipe and a one-way air exhaust pipe are fixedly connected to one end of the outer sleeve close to the fixing ring, and a piston ring is fixedly connected to the outer wall of the test block; As another improved supplement of the present application, an auxiliary detection system is also included, the auxiliary detection system includes a processor, and the processor is connected to a control module, a detection module and a data processing module; The control module is used to control the execution of the detection work, and the control module is provided with an impact test mode and a pressure test mode; The detection module is used to control the detection component to perform damage detection and flatness detection on the electrode plate after the test; The data processing module is used for processing test data and image recognition, and judging whether the test results are qualified.

[0016] As another improved supplement of the present application, the detection module stores the positioning point information of the pressure sensing node. During the impact test, the pressure sensing node position is impacted, and during subsequent image acquisition, infrared image acquisition and image acquisition are performed on the position point.

[0017] In summary, this solution realizes automated impact testing and pressure testing of battery panels, and facilitates automated testing of battery panels during the test process. The testing efficiency is high, and it is easy to meet the testing needs of various types of battery panels. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional diagram of the detection device according to the first and second embodiments of the present application; Figure 2 It is a partial stereogram of the battery plates of the first and second embodiments of the present application when they are fixed vertically; Figure 3 It is a partial stereogram of the battery plates of the first and second embodiments of the present application when placed horizontally; Figure 4 A cross-sectional view of the battery plates of the first and second embodiments of the present application during testing; Figure 5 for Figure 4 The structural diagram at A in the middle; Figure 6 This is a schematic diagram of the battery plates of the first and second embodiments of the present application when placed horizontally for monitoring; Figure 7 This is a front view of the fixing frame of the first and second embodiments of the present application; Figure 8 This is a block diagram of the auxiliary detection system of the first and second implementation modes of the present application.

[0019] Description of the numbers in the figure: 1. Box body; 2. Detection box; 3. Electromagnetic device; 4. Telescopic structure; 41. Outer sleeve; 42. Fixed ring; 43. Movable rod; 44. Test block; 45. Electric latch; 5. Fixed assembly; 51. Electric slide rail; 52. Pad; 53. First stepper motor; 54. Fixed frame; 541. Pressure sensing membrane; 542. Pressure sensing node; 6. Detector; 61. Mounting plate; 62. Electric telescopic rod; 63. Detection sensor. DETAILED DESCRIPTION

[0020] The following describes two implementation modes of the present application in detail with reference to the accompanying drawings.

[0021] The first implementation method: Figure 1-7 It shows a detection device for battery plates, comprising a box body 1, a detection box 2 is installed on the upper end of the box body 1, and a test component, a detection component and a fixing component 5 are arranged in the detection box 2; The test assembly includes a pair of electromagnetic devices 3, an electromagnet is installed on the top of the electromagnetic device 3, an electric guide rail matching the electromagnetic device 3 is fixedly connected to the top of the inner wall of the detection box 2, and a lifting and rotating structure matching the telescopic structure 4 is installed on the movable end of the electric guide rail. The top of the pair of electromagnetic devices 3 is fixedly connected to the telescopic structure 4, and the telescopic structure 4 includes an outer sleeve 41, a fixed ring 42 is fixedly connected in the outer sleeve 41, and a movable rod 43 is inserted on the fixed ring 42. A compression rod is connected between the top of the movable rod 43 and the bottom of the fixed ring 42. Spring, a pair of electric plugs 45 are installed in the fixing ring 42; the top of the fixing ring 42 is detachably connected with a test block 44, and the test block 44 can be installed in different sizes and shapes to meet different pressure test and impact test requirements. A fixing groove matching the electric plug 45 is opened on the side wall of the movable rod 43, and a permanent magnet matching the electromagnetic device 3 is installed on the top of the movable rod 43; the end of the outer sleeve 41 close to the fixing ring 42 is fixedly connected with a one-way air intake pipe and a one-way exhaust pipe, and a piston ring is fixedly connected to the outer wall of the test block 44; The fixing assembly 5 includes an electric slide rail 51, a pair of pads 52 are fixedly connected to both sides of the electric slide rail 51, a first stepper motor 53 is fixedly connected to the movable end of the electric slide rail 51, a fixing frame 54 is fixedly connected to the power output end of the first stepper motor 53, and the fixing frame 54 is rotatably connected to the movable end of the electric slide rail 51, and a pair of clamps are installed at both ends of the fixing frame 54; The detection assembly includes a detector 6 disposed between a pair of electromagnetic devices 3, the detector 6 includes a mounting plate 61, an electric telescopic rod 62 is fixedly connected to the mounting plate 61, and a positioning hole matching the movable end of the electric telescopic rod 62 is formed at one end of the fixed frame 54 away from the electric slide rail 51; A detection sensor 63 matching the fixing component 5 is mounted on the mounting plate 61 . The detection sensor 63 includes an image acquisition device and a laser sensor. The image acquisition device is used for image detection when the fixing frame 54 is in a horizontal state, and the laser sensor is used for detecting the vertical state of the fixing frame 54 .

[0022] When the battery plate is in a vertical state and fixed on the surface of the fixing frame 54, a laser sensor emits a laser along the surface of the battery plate to detect the flatness of the battery plate. During the detection, the fixing frame 54 is driven to move by the electric guide rail, so that a comprehensive detection of the surface of the battery plate can be achieved; When the fixed frame 54 rotates to a horizontal state, the image acquisition device acquires images of the electrode plate on the fixed frame 54, and the top of the fixed frame 54 is in contact with the surface of the pad 52. Before the fixed frame 54 rotates to a horizontal state, the electric guide rail is controlled to work so that the pair of electromagnetic devices 3 are separated from each other; the fixed frame 54 includes a main frame body with a hole in the middle, and a pressure sensing film 541 is detachably laid on the main frame body, and a plurality of pressure sensing nodes 542 are arranged on the pressure sensing film 541; the pressure sensing film 541 covers the hole in the middle of the main frame body; Both the electric guide rail and the lifting and rotating structure are provided with a self-locking structure. The lifting and rotating structure includes a second stepper motor installed at the movable end of the electric guide rail. The power output end of the second stepper motor is fixedly connected to the electric lifting rod. The lifting and rotating structure is used to adjust the inclination angle of the electromagnetic device 3 to adjust the pressurization direction and the impact direction.

[0023] In the operation of this scheme, the battery plate to be tested is first fixed on the fixed frame 54 by a clamp, and then the electric guide rail is controlled to move the fixed frame 54 between a pair of electromagnetic devices 3 and match the position of the electric telescopic rod 62. At this time, the electric telescopic rod 62 is controlled to be opened, so that the telescopic end of the electric telescopic rod 62 is inserted into the positioning hole at the top of the fixed frame 54, and the fixed frame 54 is fixed at this time; Then the electromagnetic device 3 is turned on to perform an impact test or a pressure test on the battery plates; Before the pressure test, the electromagnetic device 3 is adjusted to the set position through the electric guide rail and the lifting and rotating result, and then the electromagnetic device 3 is turned on to make the electromagnetic device 3 and the test block 44 repel each other, so that the test block 44 pressurizes the battery plate on the fixed frame 54; Before the impact test, a pressure sensing film 541 is pre-installed on the fixing frame 54. After the battery plate is installed on the fixing frame 54, the pressure sensing node 542 on the pressure sensing film 541 covered by the battery plate is compressed. At this time, the compressed pressure and the positioning position of the pressure sensing node 542 covered by the battery plate can be determined; When the impact test is working, the electromagnetic device 3 is first controlled to work so that it attracts the test block 44 to the position of the electric plug 45. At this time, the test block 44 compresses the compression spring, opens the electric plug 45, and inserts its movable end into the fixed groove. At this time, the test block 44 is limited and fixed; then the overall position of the telescopic structure 4 is adjusted to be closer to the fixed frame 54 to set the distance, and then the position of the telescopic structure 4 is adjusted to match the position of the specified pressure sensing node 542. Then the electric latch 45 is controlled to retract, so that the limit of the test block 44 is released. At this time, the test block 44 is reset under the action of the compression spring and impacts the battery plate on the fixed frame 54; The impact force of the battery plate when it is impacted and the pressure on the pressure sensing node 542 after the impact are monitored through the pressure sensing node 542 at this position. If the impact force is less than the set value, it is determined that the test component is abnormal. At this time, the equipment alarms and the technicians repair the test component. If the difference between the pressure value detected by the pressure sensing node 542 after the impact and the pressure value before the impact is greater than the set value, it is determined that the battery plate is partially deformed. At this time, the device adjusts the fixing assembly to adjust the battery plate to a horizontal position, and then the battery plate is tested in detail by the detector 6; After the above pressure value difference is normal or the detector 6 completes the detection, the fixing assembly can be controlled to adjust the battery plate to reset to a vertical state, and then the test assembly is used to mechanically perform impact tests at other pressure sensing nodes 542; By adjusting the position of the electromagnetic device 3, impact or pressure tests can be performed on different positions on the battery plate.

[0024] After the battery plates have completed all the tests, the electromagnetic device 3 is driven to reset, and then the first stepper motor 53 works to rotate the fixing frame 54 by 90 degrees, so that the fixing frame 54 is placed horizontally. At this time, one end of the fixing frame 54 is placed on the pad 52; Then, the detection sensor 63 is used to detect the battery plate. During the detection, the fixing frame 54 can be flipped by controlling the first stepper motor 53 to detect both sides of the battery plate.

[0025] The detection device of this embodiment can conveniently meet the automated testing and detection requirements of different types of battery plates, is convenient for impact and pressure testing of battery plates, and is convenient for rapid detection after testing.

[0026] Second implementation method: Figure 2-8 As shown, it also includes an auxiliary detection system, which includes a processor, and the processor is connected to a control module, a detection module and a data processing module; The control module is used to control the execution of the detection work, and the control module is provided with an impact test mode and a pressure test mode; The detection module is used to control the detection component to perform damage detection and flatness detection on the electrode plate after the test; the data processing module is used for processing and image recognition of the detection data. The data processing module is provided with an image recognition unit, and determines whether the detection result is qualified. The specific method of using the detection sensor 63 to collect data for detection and judgment is selected by those skilled in the art according to the needs of the existing technology settings, for example: a pair of laser sensors are used to measure the thickness of the battery plate to be tested area, and then the thickness change of the test area before and after the test is judged to determine whether the test area is deformed; The detection module stores the positioning point information of the pressure sensing node 542. During the impact test, the position of the pressure sensing node 542 is impacted, and during subsequent image acquisition, infrared image acquisition and image acquisition are performed on the position point. The infrared image is used to identify the surface temperature change of the test area after the test, which is easy to quickly identify whether the test area is damaged. The infrared image acquisition needs to be performed quickly after the test.

[0027] When this solution is working, the detection module controls the detection sensor 63 to detect the battery plate. During the specific detection, the image acquisition device detects the high-definition image or infrared image of the encrypted position or the impacted position to analyze the damage and deformation conditions of the position; During the detection process of the auxiliary detection system of this embodiment, the processor can monitor various data in the detection process in real time. Once an abnormal situation is found, the alarm module will be immediately activated to send out an alarm signal to remind the operator to check and handle it.

[0028] The auxiliary detection system of this embodiment can be seamlessly connected with other equipment on the production line to achieve data sharing and process automation, which not only reduces manual intervention and production costs, but also improves the intelligence level of the entire production line.

[0029] In summary, this solution realizes automated impact testing and pressure testing of battery panels, and facilitates automated testing of battery panels during the test process. The testing efficiency is high, and it is easy to meet the testing needs of various types of battery panels.

[0030] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A detection device for battery plates, characterized in that: It comprises a box body (1), a detection box (2) is installed at the upper end of the box body (1), and a test component, a detection component and a fixing component (5) are arranged in the detection box (2); The test assembly comprises a pair of electromagnetic devices (3); an electric guide rail matching the electromagnetic device (3) is fixedly connected to the top of the inner wall of the detection box (2); a lifting and rotating structure matching the telescopic structure (4) is installed at the movable end of the electric guide rail; the top of the pair of electromagnetic devices (3) are both fixedly connected to the telescopic structure (4); the telescopic structure (4) comprises an outer sleeve (41); a fixing ring (42) is fixedly connected inside the outer sleeve (41); a movable rod (43) is plugged into the fixing ring (42); a compression spring is connected between the top of the movable rod (43) and the bottom of the fixing ring (42); a pair of electric plugs (45) are installed in the fixing ring (42); a test block (44) is detachably connected to the top of the fixing ring (42); a fixing groove matching the electric plug (45) is provided on the side wall of the movable rod (43); and a permanent magnet matching the electromagnetic device (3) is installed at the top of the movable rod (43); The fixing assembly (5) comprises an electric slide rail (51), a pair of pads (52) are fixedly connected to both sides of the electric slide rail (51), a first stepper motor (53) is fixedly connected to the movable end of the electric slide rail (51), a fixed frame (54) is fixedly connected to the power output end of the first stepper motor (53), and a pair of clamps are installed at both ends of the fixed frame (54); The detection assembly comprises a detector (6) arranged between a pair of electromagnetic devices (3), the detector (6) comprising a mounting plate (61), an electric telescopic rod (62) being fixedly connected to the mounting plate (61), and a positioning hole matching the movable end of the electric telescopic rod (62) being formed at one end of the fixing frame (54) away from the electric slide rail (51); A detection sensor (63) matching the fixing assembly (5) is mounted on the mounting plate (61).

2. A battery plate detection device according to claim 1, characterized in that: The detection sensor (63) comprises an image acquisition device and a laser sensor, the image acquisition device being used for image detection when the fixed frame (54) is in a horizontal state, and the laser sensor being used for detection when the fixed frame (54) is in a vertical state.

3. A battery plate detection device according to claim 2, characterized in that: When the fixed frame (54) rotates to a horizontal state, the image acquisition device acquires images of the electrode plate on the fixed frame (54), and the top of the fixed frame (54) is in contact with the surface of the pad (52). Before the fixed frame (54) rotates to a horizontal state, the electric guide rail is controlled to operate so that the pair of electromagnetic devices (3) are moved away from each other.

4. A battery plate detection device according to claim 1, characterized in that: The fixed frame (54) comprises a main frame body with an opening in the middle, a pressure sensing film (541) is detachably laid on the main frame body, and a plurality of pressure sensing nodes (542) are arranged on the pressure sensing film (541).

5. A battery plate detection device according to claim 1, characterized in that: The electric guide rail and the lifting and rotating structure are both provided with a self-locking structure. The lifting and rotating structure comprises a second stepper motor installed at the movable end of the electric guide rail. The power output end of the second stepper motor is fixedly connected to the electric lifting rod.

6. A battery plate detection device according to claim 1, characterized in that: One end of the outer sleeve (41) close to the fixing ring (42) is fixedly connected to a one-way air intake pipe and a one-way air exhaust pipe, and a piston ring is fixedly connected to the outer wall of the test block (44).

7. A battery plate detection device according to claim 4, characterized in that: It also includes an auxiliary detection system, which includes a processor, and the processor is connected to a control module, a detection module and a data processing module; The control module is used to control the execution of the detection work, and the control module is provided with an impact test mode and a pressure test mode; The detection module is used to control the detection component to perform damage detection and flatness detection on the electrode plate after the test; The data processing module is used for processing detection data and image recognition, and judging whether the detection result is qualified.

8. A battery plate detection device according to claim 7, characterized in that: The detection module stores the positioning point information of the pressure sensing node (542). During the impact test, the position of the pressure sensing node (542) is impacted, and during subsequent image acquisition, infrared image acquisition and image acquisition are performed on the position point.

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