High-speed detection device for battery surface and detection method thereof

Abstract

The invention relates to the technical field of lithium battery detection, and discloses a high-speed detection device for a battery surface and a detection method thereof.The device comprises a detection table and an anti-bounce limiting mechanism arranged on the detection table, and the anti-bounce limiting mechanism comprises a rotatable pneumatic clamping jaw, a movable clamp, a fixed sliding rail and a sliding block; the rotatable pneumatic clamping jaw and the fixed sliding rail are respectively and fixedly arranged on the detection table; the rotatable pneumatic clamping jaw is driven by a servo motor to rotate and is used for clamping one end of a battery so as to drive the battery to rotate; the sliding block is in sliding connection with the fixed sliding rail, and the movable clamp is arranged on the sliding block corresponding to the rotatable pneumatic clamping jaw, moves under the driving of the sliding block and is used for being matched with the rotatable pneumatic clamping jaw to abut against the two ends of a battery. According to the scheme, a clamping and rotating mode that the two ends of the battery abut against each other through the rotatable pneumatic clamping jaw and the movable clamp is adopted, so that the battery is not prone to jumping in the rotating process, and the function of preventing the battery from jumping is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium battery detection, and in particular to a high-speed detection device and a detection method for a battery surface. Background Art

[0002] During the production process of cylindrical lithium batteries, surface inspection is required to ensure that the battery surface is flat and free of dents, swelling and cracks.

[0003] Most of the equipment used for battery vibration detection in current lithium battery production workshops are similar in structure, generally using a double-drum type, that is, cylindrical batteries are placed on two sets of high-speed rotating drums, the rotation of the drums drives the batteries to rotate, and the camera quickly scans and shoots. However, the existing equipment has some functional deficiencies in actual use and has room for improvement. For example, when the double drums rotate at high speed, once the friction between the battery surface and the drums is unbalanced, or the center of gravity inside the battery is unbalanced, the battery is likely to vibrate, affecting the accuracy of the camera scan.

[0004] Therefore, it is urgent to develop a battery surface detection device that has the function of preventing battery jumping to adapt to high-speed rotation scenarios. Summary of the invention

[0005] The purpose of the present invention is to overcome the problems existing in the prior art and provide a high-speed detection device and detection method for the surface of a battery, which can prevent the battery from jumping under high-speed rotation.

[0006] In order to achieve the above-mentioned purpose, the present invention provides a high-speed detection device for the surface of a battery, comprising: a detection platform and an anti-jumping limit mechanism arranged on the detection platform, the anti-jumping limit mechanism comprising a rotatable pneumatic jaw, a movable clamp, a fixed slide rail and a slider, the rotatable pneumatic jaw and the fixed slide rail are respectively fixed on the detection platform; the rotatable pneumatic jaw is driven by a servo motor to rotate, and is used to clamp one end of the battery to drive the battery to rotate, and the fixed slide rail is parallel to the rotation axis of the rotatable pneumatic jaw; the slider is slidably connected to the fixed slide rail, and is driven by a cylinder to slide; the movable clamp is arranged on the slider corresponding to the rotatable pneumatic jaw, and moves toward or away from the rotatable pneumatic jaw under the drive of the slider, and is used to cooperate with the rotatable pneumatic jaw to press against the two ends of the battery.

[0007] Preferably, the device also includes a visual inspection mechanism, which is installed on the inspection table, including a lamp fixing frame, a slide rail fixing plate, a servo slide rail, a slide table, a line scan camera and a light source device. The lamp fixing frame and the slide rail fixing plate are both vertically installed on the inspection table, and the servo slide rail is arranged on the slide rail fixing plate corresponding to the axis position of the rotatable pneumatic clamp; the slide table is arranged on the servo slide rail and is driven by a servo motor to reciprocate in the vertical direction; the line scan camera is located on the slide table above the rotatable pneumatic clamp, and is used to scan and identify the battery surface; the lamp fixing frame is arranged on one side of the axis of the rotatable pneumatic clamp, and the light source device is installed on the lamp fixing frame to provide light for the line scan camera.

[0008] Preferably, the device also includes a visual inspection mechanism, which is installed on the inspection platform, including a camera fixing seat, a fixing clamp, a 3D camera fixing frame and a 3D camera, wherein the camera fixing seat is arranged on one side of the axis of the rotatable pneumatic clamp; the fixing clamp is fixed on the camera fixing seat, and is used to clamp and fix the 3D camera fixing frame; the 3D camera is located above the rotatable pneumatic clamp and is arranged on the 3D camera fixing frame, and is used to identify the battery surface.

[0009] Preferably, the detection platform is provided with a groove, and fixing plates are arranged at intervals at both ends of the groove. The fixing plates at both ends are respectively located below the rotatable pneumatic clamp and the fixed slide rail, and are used to install and fix the rotatable pneumatic clamp and the fixed slide rail.

[0010] Preferably, the rotatable pneumatic clamp is composed of a plurality of clamps, and an anti-sliding block for enhancing friction is provided on the contact surface between the plurality of clamps and the battery; a bearing is provided inside the slider, one end of the movable clamp is rotatably connected to the slider through the bearing, and the other end is provided with an anti-sliding block for enhancing friction.

[0011] Preferably, the device also includes an automatic control mechanism, including a PLC controller and a through-beam sensor, and the PLC controller is electrically connected to the servo motor and cylinder of the device; the through-beam sensor is signal-connected to the PLC controller, and is arranged on both sides of the battery clamping area, and is used to detect that the battery enters the clamping area and is in place, and then sends a signal to the PLC controller, and the PLC controller controls the servo motor and cylinder to automatically perform high-speed detection of the battery surface.

[0012] Preferably, the automatic control mechanism also includes a vibration sensor, which is arranged on the rotatable pneumatic clamp and is connected to the PLC controller signal, and is used to detect abnormal vibration of the battery during rotation and then feed back to the PLC controller, and the PLC controller automatically controls the servo motor and cylinder to pause and alarm.

[0013] Preferably, the PLC controller is electrically connected to the visual detection mechanism to control the visual detection mechanism to start a detection function.

[0014] A second aspect of the present invention provides a detection method for a high-speed detection device on the surface of a battery, comprising the following steps: clamping a cylindrical battery in a rotatable pneumatic clamp, then starting a cylinder, the cylinder pushes a slider to move along a fixed slide rail, pressing a movable clamp against the rear end of the battery, and then starting a servo motor to drive the rotatable pneumatic clamp to rotate at high speed.

[0015] Preferably, the method comprises the following steps: The cylindrical battery is clamped in the rotatable pneumatic clamp. After the through-beam sensor detects that the battery is in place, it sends a signal to the PLC controller. The PLC controller controls the cylinder to start, driving the movable fixture to move to the set position, so that the rotatable pneumatic clamp and the movable fixture press the two ends of the battery tightly; The PLC controller sends an instruction to start the first servo motor and the vibration sensor, controls the first servo motor to drive the rotatable pneumatic gripper to rotate, and simultaneously starts the second servo motor to drive the line scan camera to reach a specified position, and controls the line scan camera to start a scanning and recognition function; or, the PLC controller sends an instruction to start the first servo motor and the vibration sensor, controls the first servo motor to drive the rotatable pneumatic gripper to rotate, and simultaneously controls the 3D camera to start a scanning and recognition function; During the rotation scanning process, the vibration sensor monitors the amount of vibration in real time. If it exceeds the threshold, it will be fed back to the PLC controller. The PLC controller will control the first servo motor to automatically stop and start the alarm to ensure a safe and stable detection process.

[0016] Through the above technical solution, the cylindrical battery is clamped in the rotatable pneumatic clamp, and then the cylinder is started. The cylinder pushes the slider to move along the fixed slide rail, and the movable clamp is pressed against the tail end of the battery. The servo motor drives the rotatable pneumatic clamp to rotate at high speed, and the battery rotates synchronously. The rotatable pneumatic clamp and the movable clamp are used to clamp and rotate the two ends of the battery, so that the battery is not easy to jump during the rotation process, and the function of preventing the battery from jumping is realized. Therefore, the anti-jump limit mechanism realizes stable clamping under high-speed rotation through the double-end clamping structure of the rotatable pneumatic clamp and the movable clamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the three-dimensional structure of the high-speed detection device for the battery surface of the present invention installed with a 3D camera; Figure 2 It is a schematic diagram of the top view of the structure of the device of the present invention; Figure 3 This is a schematic diagram of the three-dimensional structure of the high-speed detection device for the battery surface of the present invention when a line scan camera is installed; Figure 4 This is a schematic diagram of the side view structure of the high-speed detection device for the battery surface of the present invention, in which a line scan camera is installed; Figure 5 It is a schematic diagram of the automatic control mechanism of the high-speed detection device for the battery surface of the present invention.

[0018] In the figure: 1. test table; 2. reserved screw eye; 3. first fixed plate; 4. first servo motor; 5. rotatable pneumatic clamp; 6. second fixed plate; 7. cylinder; 8. fixed slide rail; 9. slider; 10. movable fixture; 11. camera fixing seat; 12. fixed fixture; 13. 3D camera fixing frame; 14. 3D camera; 15. slide rail fixing plate; 16. first reinforcement seat; 17. second reinforcement seat; 19. servo slide rail; 20. second servo motor; 21. slide table; 22. line scan camera fixing frame; 23. line scan camera; 24. lamp fixing frame; 25. light source equipment; 26. through-beam sensor bracket; 27. through-beam sensor; 28. vibration sensor. DETAILED DESCRIPTION

[0019] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below", "to the left" or "to the right" of a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0020] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. Example 1

[0021] A high-speed detection device for battery surface, Figure 1As shown, it includes: a test platform 1 and an anti-jumping limit mechanism arranged on the test platform 1, the anti-jumping limit mechanism includes a rotatable pneumatic clamp 5, a movable clamp 10, a fixed slide rail 8 and a slider 9, the rotatable pneumatic clamp 5 and the fixed slide rail 8 are respectively fixed on the test platform 1; the rotatable pneumatic clamp 5 is driven by a servo motor to rotate, and is used to clamp one end of the battery to drive the battery to rotate, and the fixed slide rail 8 is parallel to the rotation axis of the rotatable pneumatic clamp 5; the slider 9 is slidably connected to the fixed slide rail 8, and is driven by a cylinder to slide; the movable clamp 10 is arranged on the slider 9 corresponding to the rotatable pneumatic clamp 5, and moves towards or away from the rotatable pneumatic clamp 5 under the drive of the slider 8, and is used to cooperate with the rotatable pneumatic clamp 5 to press the two ends of the battery.

[0022] Furthermore, the detection table 1 is provided with a groove, and fixed plates are arranged at intervals at both ends of the groove. The fixed plates at both ends are respectively located below the rotatable pneumatic clamp 5 and the fixed slide rail 8, and are used to install and fix the rotatable pneumatic clamp 5 and the fixed slide rail 8. The fixed plate can effectively reduce the installation difficulty of the anti-jump limit mechanism and reduce the cost. The rotatable pneumatic clamp 5 is composed of a plurality of clamps, and the contact surfaces of the plurality of clamps with the battery are provided with anti-sliding blocks for enhancing friction; the slider 9 is provided with a bearing inside, and one end of the movable clamp 10 is rotatably connected to the slider 9 through the bearing, and the other end is provided with an anti-sliding block for enhancing friction, preferably a polyurethane anti-sliding block, to enhance the friction with the battery and improve the rotation stability.

[0023] For example, Figure 2 As shown, the groove is located at the central axis of the test bench 1 and passes through the front and rear sides of the test bench 1. The first fixed plate 3 and the second fixed plate 6 are arranged at intervals at both ends of the groove. The surfaces of the first fixed plate 3 and the second fixed plate 6 are flush with the surface of the test bench 1 and are located on the same horizontal plane. A first servo motor 4 is arranged in the middle position on the first fixed plate 3. The output end of the first servo motor 4 is movably connected with a rotatable pneumatic clamp 5, which is used to drive the rotatable pneumatic clamp 5 to rotate. A fixed slide rail 8 is fixedly connected to the second fixed plate 6. The fixed slide rail 8 includes two tracks. The two tracks are symmetrically arranged on both sides of the central axis of the test bench 1. A slider 9 is movably connected to the upper part of the fixed slide rail 8. A cylinder 7 is installed at the middle position on the second fixed plate 6. The output end of the cylinder 7 is connected to the slider 9 to drive the slider 9 to slide along the fixed slide rail 8. The horizontal center lines of the rotatable pneumatic clamp 5 and the movable clamp 10 coincide with each other, so that the battery can be rotated in coordination with the clamping battery to prevent the battery from jumping.

[0024] By setting the first fixed plate, the first servo motor, the rotatable pneumatic clamp, the second fixed plate, the cylinder, the fixed slide rail, the slider and the movable clamp, when in use, after installing the 3D camera or the line scan camera as needed, clamp the cylindrical battery in the rotatable pneumatic clamp, then start the cylinder, the cylinder pushes the slider to move along the fixed slide rail, and presses the movable clamp against the tail end of the battery. The first servo motor drives the rotatable pneumatic clamp to rotate at high speed, and the battery rotates synchronously. The rotatable pneumatic clamp and the movable clamp press the two ends of the battery tightly, so that the battery is not easy to jump during the rotation process, and the function of preventing the battery from jumping is realized. Therefore, the anti-jump limit mechanism realizes stable clamping under high-speed rotation through the double-end clamping structure of the rotatable pneumatic clamp and the movable clamp.

[0025] Furthermore, the high-speed detection device for the battery surface also includes a first visual detection mechanism, such as Figure 1 As shown, it is installed on the test bench 1, including a lamp fixing frame 24, a slide rail fixing plate 15, a servo slide rail 19, a slide table 21, a line scan camera 23 and a light source device 25. The lamp fixing frame 24 and the slide rail fixing plate 15 are both vertically installed on the test bench 1. The servo slide rail 19 is arranged on the slide rail fixing plate 15 corresponding to the axis position of the rotatable pneumatic clamp 5; the slide table 21 is arranged on the servo slide rail 19 and is driven by a servo motor to reciprocate in the vertical direction; the line scan camera 23 is located above the rotatable pneumatic clamp 5 and is arranged on the slide table 21, and is used to scan and identify the battery surface; the lamp fixing frame 24 is arranged on one side of the axis of the rotatable pneumatic clamp 5, and the light source device 25 is installed on the lamp fixing frame 24, and is used to provide light for the line scan camera 23. The bottom of the line scan camera 23 is higher than the light source device 25, which is convenient for installing the line scan camera 23. Preferably, the bottom of the slide rail fixing plate 15 is set to an inverted U-shaped structure, and the two sides of the inverted U-shaped structure are located on both sides of the rotatable pneumatic clamp 5, so that the rotatable pneumatic clamp 5 is located in the gap at the lower end of the slide rail fixing plate 15; illustratively, the front and rear sides of both sides of the slide rail fixing plate 15 are provided with a second reinforcement seat 17 and the left and right sides are provided with a first reinforcement seat 16, which is used to reinforce the slide rail fixing plate 15; the top of the servo slide rail 19 is installed with a second servo motor 20, which is used to drive the slide 21 to reciprocate along the servo slide rail 19, and the front end of the slide 21 is fixedly connected to the line scan camera fixing frame 22, and the line scan camera 23 is arranged in the middle of the line scan camera fixing frame 22. A plurality of groups of reserved screw eyes 2 are provided on the test platform 1, and the lamp fixing frame 24 is detachably installed with the test platform 1 by screws in conjunction with the reserved screw eyes 2.

[0026] like Figure 3 and Figure 4As shown, the line scan camera 23 is fixed on the line scan camera fixing frame 22, the line scan camera fixing frame 22 is fixed on the slide 21, the second servo motor 20 drives the internal wire shaft of the servo slide 19 to operate, and the slide 21 moves up and down along the servo slide 19 to adjust the actual height of the line scan camera 23.

[0027] In another embodiment of the present invention, the high-speed detection device for the battery surface further includes a second visual detection mechanism, such as Figure 1 As shown, it is installed on the test bench 1, including a camera fixing seat 11, a fixing fixture 12, a 3D camera fixing frame 13 and a 3D camera 14. The camera fixing seat 11 is arranged on one side of the axis of the rotatable pneumatic clamp 5; the fixing fixture 12 is fixedly arranged on the camera fixing seat 11, and is used to clamp and fix the 3D camera fixing frame 11; the 3D camera 14 is located above the rotatable pneumatic clamp 5 and is arranged on the 3D camera fixing frame 11, and is used to identify the battery surface. The camera fixing seat 11 is also detachably installed with the test bench 1 through screws and reserved screw eyes 2.

[0028] The working principle of the high-speed detection device for the battery surface of the present invention is as follows: first, install the 3D camera 14 or the line scan camera 23 as needed. For example, according to the detection needs, when the 3D camera 14 needs to be used, fix the camera fixing seat 11 on the detection platform 1, and the 3D camera 14 is first fixed on the 3D camera fixing frame 13, and then the 3D camera fixing frame 13 is clamped on the fixing fixture 12, and the 3D camera 14 is fixed. Or according to the detection needs, when the line scan camera 23 needs to be used, fix the line scan camera 23 on the line scan camera fixing frame 22, and the line scan camera fixing frame 22 is fixed on the slide 21, and the second servo motor 20 drives the internal wire shaft of the servo slide 19 to operate, and the slide 21 moves up and down along the servo slide 19 to adjust the actual height of the line scan camera 23, and the lamp fixing frame 24 is used to fix the light source 25. The cylindrical battery is clamped in the rotatable pneumatic clamp 5. After the battery is in place, the cylinder 7 is started. The cylinder 7 pushes the slider 9 to move along the fixed slide rail 8, and the movable clamp 10 is pressed against the tail end of the battery. The first servo motor 4 drives the rotatable pneumatic clamp 5 to rotate at high speed, and the battery rotates synchronously. The rotatable pneumatic clamp 5 and the movable clamp 10 press the two ends of the battery tightly, so that the battery is not easy to jump during the rotation process.

[0029] By providing a camera holder, a fixing fixture, a 3D camera holder and a 3D camera, when in use, according to the detection needs, when the 3D camera needs to be used, the camera holder is fixed on the detection table, the 3D camera is first fixed on the 3D camera holder, and then the 3D camera holder is clamped on the fixing fixture, and the 3D camera is fixed, thereby realizing the function of facilitating the installation of the 3D camera. By providing a servo slide rail, a second servo motor, a slide table, a line scan camera holder, a line scan camera, a lamp holder and a light source, when in use, according to the detection needs, when the line scan camera needs to be used, the line scan camera is fixed on the line scan camera holder, the line scan camera holder is fixed on the slide table, the second servo motor drives the internal wire shaft of the servo slide rail to operate, the slide table moves up and down along the servo slide rail, and the actual height of the line scan camera is adjusted. The lamp holder is used to fix the light source equipment, thereby realizing the function of facilitating the installation of the line scan camera.

[0030] Therefore, the present invention takes into account functional diversity and ease of installation and use. The high-speed detection device on the battery surface is equipped with two visual detection mechanisms and can be detachably installed with reserved screw eyes 2. It supports fast switching of 3D cameras 14 and line scan cameras 23, and realizes a modular camera installation design. Example 2

[0031] A high-speed detection device for battery surface, based on the structure in embodiment 1, the device also includes an automatic control mechanism, such as Figure 5 As shown, it includes a PLC controller, a through-beam sensor 27 and a vibration sensor 28. The PLC controller is electrically connected to the servo motor and the cylinder of the device; the through-beam sensor 27 is connected to the PLC controller signal, and is arranged on both sides of the battery clamping area through a through-beam sensor bracket 26. The through-beam sensor bracket 26 is arranged on the detection table 1 through a reserved screw eye 2, and is used to detect that the battery enters the clamping area and is in place, and then sends a signal to the PLC controller, and the PLC controller controls the servo motor and the cylinder to automatically perform high-speed detection of the battery surface; the vibration sensor 28 is arranged on the rotatable pneumatic clamp 5 and is connected to the PLC controller signal, and is used to detect abnormal jumping of the battery during rotation and then feedback to the PLC controller, and the PLC controller automatically controls the servo motor and the cylinder to pause and alarm; the PLC controller is electrically connected to the visual detection mechanism, and is used to control the visual detection mechanism to start the detection function.

[0032] Exemplarily, the PLC controller controls the electrical connection with the first servo motor 4 , the second servo motor 20 , the cylinder 7 , the line scan camera 23 (or the 3D camera 14 ), and the signal connection with the through-beam sensor 27 and the vibration sensor 28 . The working principle is as follows: the cylindrical battery is clamped in the rotatable pneumatic clamp 5. After the beam sensor 26 detects that the battery is in place, it sends a signal to the PLC controller. The PLC controller controls the cylinder 7 to start, pushes the slider 9 to move to the set position, and presses the movable clamp 10 against the tail end of the battery. The rotatable pneumatic clamp 5 and the movable clamp 10 press the two ends of the battery tightly; then the PLC controller sends an instruction to start the first servo motor 4 and the vibration sensor 28. The first servo motor 4 drives the rotatable pneumatic clamp 5 to rotate, so that the battery is not prone to jumping during the rotation process. At the same time, the second servo motor 20 is started to drive the line scan camera 23 to the specified position, and the line scan camera 23 is controlled to start the scanning and recognition function (or the 3D camera 14 is controlled to start the scanning and recognition function); during the rotation scanning process, the vibration sensor 28 monitors the jumping amount in real time. If it exceeds the threshold, it is fed back to the PLC controller, and the PLC controller controls the first servo motor 4 to automatically stop and start the alarm to ensure the safety and stability of the detection process.

[0033] Based on the linkage control of the beam sensor 27, the vibration sensor 28 and the PLC controller, the fully automated functions of clamping, rotation and abnormality detection are realized. According to the test, the vibration sensor error frequency of the device does not exceed 4 times / hour at a rotation speed of 1000rpm.

[0034] Another aspect of the present invention provides a method for detecting a battery surface using a high-speed detection device, comprising the following steps: The cylindrical battery is clamped in the rotatable pneumatic clamp. After the through-beam sensor detects that the battery is in place, it sends a signal to the PLC controller. The PLC controller controls the cylinder to start, driving the movable fixture to move to the set position, so that the rotatable pneumatic clamp and the movable fixture press the two ends of the battery tightly; The PLC controller sends an instruction to start the first servo motor and the vibration sensor, controls the first servo motor to drive the rotatable pneumatic gripper to rotate, and simultaneously starts the second servo motor to drive the line scan camera to reach a specified position, and controls the line scan camera to start a scanning and recognition function; or, the PLC controller sends an instruction to start the first servo motor and the vibration sensor, controls the first servo motor to drive the rotatable pneumatic gripper to rotate, and simultaneously controls the 3D camera to start a scanning and recognition function; During the rotation scanning process, the vibration sensor monitors the amount of vibration in real time. If it exceeds the threshold, it will be fed back to the PLC controller. The PLC controller will control the first servo motor to automatically stop and start the alarm to ensure a safe and stable detection process.

[0035] In summary, the technical solution of the present invention has the following beneficial effects: (1) The anti-jump limit mechanism realizes stable clamping under high-speed rotation through the double-end clamping structure of the rotatable pneumatic clamp and the movable clamp; (2) Taking into account the functional diversity and the convenience of installation and use, the high-speed detection device of the battery surface of the present invention is set up through the two visual detection mechanisms, and the reserved screw eye 2 can be detachably installed, supporting the rapid switching of the 3D camera 14 and the line scan camera 23, and realizing a modular camera installation design; (3) Based on the linkage control of the through-beam sensor, the vibration sensor and the PLC controller, the fully automated functions of clamping, rotation and abnormality detection are realized.

[0036] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0037] Therefore, the above description is only a preferred embodiment of the present application and is not intended to limit the scope of implementation of the present application; that is, all equivalent changes made according to the scope of the claims of the present application are within the protection scope of the claims of the present application.

Claims

1. A high-speed detection device for battery surface, characterized in that: include: A test bench (1) and an anti-jump limit mechanism provided on the test bench (1), wherein the anti-jump limit mechanism comprises a rotatable pneumatic clamp (5), a movable clamp (10), a fixed slide rail (8) and a slider (9), wherein the rotatable pneumatic clamp (5) and the fixed slide rail (8) are respectively fixedly provided on the test bench (1); the rotatable pneumatic clamp (5) is driven by a servo motor to rotate, and is used to clamp one end of a battery to drive the battery to rotate; the fixed slide rail (8) is parallel to the rotation axis of the rotatable pneumatic clamp (5); the slider (9) is slidably connected to the fixed slide rail (8), and is driven by a cylinder to slide; the movable clamp (10) is provided on the slider (9) corresponding to the rotatable pneumatic clamp (5), and moves towards or away from the rotatable pneumatic clamp (5) under the drive of the slider (9), and is used to cooperate with the rotatable pneumatic clamp (5) to press against the two ends of the battery.

2. The device according to claim 1, characterized in that The device also includes a visual inspection mechanism, which is installed on the inspection platform (1), and includes a lamp fixing frame (24), a slide rail fixing plate (15), a servo slide rail (19), a slide platform (21), a line scan camera (23) and a light source device (25). The lamp fixing frame (24) and the slide rail fixing plate (15) are both vertically installed on the inspection platform (1), and the servo slide rail (19) is arranged on the slide rail fixing plate (15) corresponding to the axis position of the rotatable pneumatic clamp (5). The slide (21) is disposed on the servo slide rail (19) and is driven by a servo motor to reciprocate in a vertical direction; the line scan camera (23) is located above the rotatable pneumatic clamp (5) and is disposed on the slide (21) for scanning and identifying the battery surface; the lamp fixture bracket (24) is disposed on one side of the axis of the rotatable pneumatic clamp (5), and the light source device (25) is installed on the lamp fixture bracket (24) for providing light source for the line scan camera (23).

3. The device according to claim 1, characterized in that The device further comprises a visual inspection mechanism, which is mounted on the inspection platform (1) and comprises a camera fixing seat (11), a fixing fixture (12), a 3D camera fixing frame (13) and a 3D camera (14); the camera fixing seat (11) is arranged on one side of the axis of the rotatable pneumatic clamp (5); the fixing fixture (12) is fixedly arranged on the camera fixing seat (11) and is used to clamp and fix the 3D camera fixing frame (13); the 3D camera (14) is located above the rotatable pneumatic clamp (5) and is arranged on the 3D camera fixing frame (13) and is used to identify the surface of the battery.

4. The device according to claim 1, characterized in that The detection table (1) is provided with a groove, and fixing plates are arranged at intervals at both ends of the groove. The fixing plates at both ends are respectively located below the rotatable pneumatic clamping jaw (5) and the fixed slide rail (8) and are used to install and fix the rotatable pneumatic clamping jaw (5) and the fixed slide rail (8).

5. The device according to claim 1, characterized in that The rotatable pneumatic clamp (5) is composed of a plurality of clamps, and an anti-sliding block for enhancing friction is provided on the contact surface between the plurality of clamps and the battery; a bearing is provided inside the sliding block (9); one end of the movable clamp (10) is rotatably connected to the sliding block (9) via the bearing, and the other end is provided with an anti-sliding block for enhancing friction.

6. The device according to claim 2 or 3, characterized in that: The device also includes an automatic control mechanism, including a PLC controller and a beam sensor (27); the PLC controller is electrically connected to the servo motor and the cylinder of the device; the beam sensor (27) is signal-connected to the PLC controller and is disposed on both sides of the battery clamping area, and is used to detect when the battery enters the clamping area and is in place, and then send a signal to the PLC controller, so that the PLC controller controls the servo motor and the cylinder to automatically perform high-speed detection of the battery surface.

7. The device according to claim 6, characterized in that The automatic control mechanism also includes a vibration sensor (28), which is arranged on the rotatable pneumatic clamp (5) and is connected to the PLC controller signal, and is used to detect abnormal vibration of the battery during rotation and then feed back to the PLC controller, so that the PLC controller automatically controls the servo motor and the cylinder to be paused and an alarm is sounded.

8. The device according to claim 7, characterized in that The PLC controller is electrically connected to the visual detection mechanism and is used to control the visual detection mechanism to start a detection function.

9. A detection method of a high-speed detection device for a battery surface according to any one of claims 1 to 8, characterized in that: The following steps are involved: The cylindrical battery is clamped in the rotatable pneumatic clamp (5), and then the cylinder is started. The cylinder pushes the slider (9) to move along the fixed slide rail (8), and the movable clamp (10) is pressed against the rear end of the battery. Then the servo motor is started to drive the rotatable pneumatic clamp (5) to rotate at high speed.

10. The method according to claim 9, characterized in that The following steps are involved: The cylindrical battery is clamped in the rotatable pneumatic clamp (5), and after the beam sensor (27) detects that the battery is in place, a signal is sent to the PLC controller; The PLC controller controls the cylinder to start, driving the movable clamp (10) to move to a set position, so that the rotatable pneumatic clamp (5) and the movable clamp (10) press against both ends of the battery; The PLC controller sends a command to start the first servo motor (4) and the vibration sensor (28), controls the first servo motor (4) to drive the rotatable pneumatic clamp (5) to rotate, and simultaneously starts the second servo motor (20) to drive the line scan camera (23) to reach a specified position, and controls the line scan camera (23) to start a scanning and recognition function; or, the PLC controller sends a command to start the first servo motor (4) and the vibration sensor (28), controls the first servo motor (4) to drive the rotatable pneumatic clamp (5) to rotate, and simultaneously controls the 3D camera (14) to start a scanning and recognition function; During the rotation scanning process, the vibration sensor (28) monitors the vibration amount in real time. If the vibration amount exceeds a threshold, the vibration amount is fed back to the PLC controller, which controls the first servo motor (4) to automatically stop and start an alarm, thereby ensuring a safe and stable detection process.

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