A screening device for various types of battery surface defects

Abstract

This invention relates to the field of lithium battery manufacturing equipment, and more particularly to a screening device for surface defects in various types of batteries. The device includes: a fixing device, an electric telescopic rod, a sensing block, a balancing device, a rotating ring block, a driving device, a support plate, a deceleration device, and a collection block. The electric telescopic rod is mounted on the upper wall of the fixing device. The sensing block has a built-in power supply and is also mounted on the upper wall of the fixing device. The balancing device is rotatably mounted at the output end of the electric telescopic rod. The rotating ring block is connected to the driving device, which includes a helical rod, an elastic telescopic rod, and a rotating block. The helical rod is coaxially connected to the rotating ring block. This invention, by clamping and rotating at both ends, can adapt to different battery shapes, expanding the detection range compared to a single cylindrical battery.

Description

Technical Field

[0001] This invention relates to the field of lithium battery manufacturing equipment, and more particularly to a screening device for various types of battery surface defects. Background Technology

[0002] Lithium-ion battery surface screening typically requires the use of various specialized equipment to ensure accuracy and efficiency. Visual inspection systems are among the most commonly used devices, employing high-resolution cameras and image processing software to perform a comprehensive visual inspection of the battery surface, quickly identifying defects such as scratches, dents, and bubbles.

[0003] Existing visual inspection devices for lithium battery surface screening often use a columnar drive block to rotate the target in order to collect side information of the target. This method is simple and fast, but it can only be used for cylindrical targets. It cannot be effectively used for targets whose shape cannot be driven by the columnar drive block, so the inspection range is relatively limited. Summary of the Invention

[0004] Therefore, this invention addresses the aforementioned problems. The purpose of this invention is to solve the problem that existing lithium battery surface screening visual inspection devices, in order to collect side information of the target, often rely on a cylindrical drive block to rotate the target. While this method is simple and fast, it is only effective for cylindrical targets and cannot effectively handle targets whose shape cannot be driven by the cylindrical drive block, thus limiting the inspection range. This invention achieves the above objective through the following technical solution:

[0005] A screening device for various types of battery surface defects includes: a fixing device, an electric telescopic rod, a sensing block, a balancing device, a rotating ring block, a driving device, a support plate, a deceleration device, and a collection block. The electric telescopic rod is disposed on the upper wall of the fixing device. The sensing block has a built-in power supply and is disposed on the upper wall of the fixing device. The balancing device is rotatably disposed at the output end of the electric telescopic rod. The rotating ring block is connected to the driving device, which includes a helical rod, an elastic telescopic rod, and a rotating block. The helical rod is coaxially connected to the rotating ring block, and the rotating block meshes with the helical rod. The deceleration device is movably disposed in a slide rail of the support plate. The deceleration device includes a friction block, a protrusion, and a conical block. The friction block is movably disposed in a slide rail on the support plate, the protrusion is disposed at one end of the support plate, and the conical block is disposed at the side end of the friction block. The collection block is movably disposed in a slide rail of the fixing device.

[0006] Preferably, the driving device further includes a circular plate and a cross support frame. The circular plate is fixed to one side of the rotating ring block, and the cross support frame is mounted on the circular plate through a rotating bearing and connected to an elastic telescopic rod. The elastic telescopic rod drives the cross support frame away from or towards the support plate.

[0007] Preferably, the side end of the cross support frame has a rough surface, which generates elastic resistance when it comes into contact with the protrusion of the deceleration device.

[0008] Preferably, the protrusion is made of a flexible material, with one side of the protrusion being an arc surface and the other side being an inclined sliding surface.

[0009] Preferably, the fixing device includes a fixing plate, a falling plate, and a blocking block. The falling plate is rotatably mounted on the fixing plate via a connecting rod and magnetically engages with the blocking block. An electromagnet is provided inside the blocking block, and a sensing block controls its magnetic state to drive the falling plate to rotate.

[0010] Preferably, the maximum rotation angle of the falling plate is degrees. When the electromagnet is de-energized, the falling plate rotates downward under the action of gravity, causing the battery to fall into the corresponding collection tank.

[0011] Preferably, the balancing device includes a balancing block, a collision block, and a limiting rod. The balancing block is made of transparent material and has a collection device inside. It is rotatably mounted at the output end of the electric telescopic rod. The collision block is mounted on the side end of the balancing block through a rotating bearing. When the collision block contacts the conical block, it drives the friction block to move.

[0012] Preferably, the collision block has a smooth and magnetic surface, and the collision block magnetically engages with the friction block and the cone block.

[0013] Preferably, when the helical rod of the driving device passes through the rotating block, it drives the rotating ring block to rotate, so that the balance block and the rotating ring block together clamp the battery and rotate synchronously.

[0014] This invention uses a balance block to move and drive a screw rod through a rotating block. During this process, the screw rod rotates continuously, causing the rotating ring block to rotate as well. The rotation of the rotating ring block, through the battery, also drives the balance block to rotate. During this process, the data acquisition block collects information from the side of the battery. At the same time, the data acquisition devices inside the balance block and the rotating ring block can collect information from both ends of the battery.

[0015] This invention classifies and sorts batteries by the speed difference between a balance block and a rotating ring block. When a battery is in good condition, it loses support due to the speed difference between the balance block and the rotating ring block and falls into the external receiving slot below the notch of the fixed plate. When a battery is not in good condition, the sensing block drives the falling plate to rotate downwards, causing the battery on it to fall into another external collecting slot to complete the sorting and screening of batteries in different states.

[0016] This invention, by clamping and rotating at both ends, can adapt to battery shapes of different sizes. Compared to a single cylindrical battery, it expands the detection range and avoids the problem that existing lithium battery surface screening visual inspection devices often use a columnar drive block to rotate the target in order to collect side information of the target. This method is simple and fast, but it can only be used for cylindrical targets. It cannot be effectively used for targets whose shape cannot be driven by the columnar drive block, thus limiting the inspection range. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 This is a schematic diagram of the fixing device and the deceleration device of the present invention.

[0019] Figure 3 This is a schematic diagram of the structure of the driving device of the present invention.

[0020] Among them, 100 is a fixing device; 110 is a fixing plate; 120 is a falling plate; 130 is a blocking block; 200 is an electric telescopic rod; 300 is a sensing block; 400 is a balancing device; 410 is a balancing block; 420 is a collision block; 430 is a limiting rod; 500 is a rotating ring block; 600 is a driving device; 610 is a circular plate; 620 is a spiral rod; 630 is an elastic telescopic rod; 640 is a rotating block; 650 is a cross support frame; 700 is a support plate; 800 is a deceleration device; 810 is a friction block; 820 is a protrusion; 830 is a conical block; and 900 is a collection block. Detailed Implementation

[0021] Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will facilitate the implementation of these embodiments by those skilled in the art. However, the invention can be implemented in various different forms, and therefore is not limited to the embodiments described below. Furthermore, for clarity, components not connected to the invention will be omitted from the drawings.

[0022] like Figure 1 As shown, a screening device for various types of battery surface defects includes: a fixing device 100, an electric telescopic rod 200, a sensing block 300, a balancing device 400, a rotating ring block 500, a driving device 600, a support plate 700, a deceleration device 800, and a collection block 900.

[0023] The electric telescopic rod 200 is installed on the upper wall of the fixing device 100;

[0024] The sensing block 300 has a built-in power supply and is set on the upper wall of the fixing device 100. In specific implementation, it can contact the balancing device 400 and, after contact, can adjust the magnetic force state of the electromagnet inside the blocking block 130, thereby driving the falling plate 120 on the fixing device 100 to rotate.

[0025] The balancing device 400 is rotatably mounted at the top of the inner rod of the electric telescopic rod 200;

[0026] The rotating ring block 500 is mounted on the driving device 600; the rotating ring block 500 is made of transparent material and has a collection device inside, which can collect information from the side of the battery.

[0027] The drive device 600 is mounted on the support plate 700;

[0028] The support plate 700 is disposed on the upper wall surface of the fixing device 100;

[0029] The deceleration device 800 is movably mounted in a slide rail on the support plate 700;

[0030] The collection block 900 is movably installed in a slide rail on the upper wall of the fixing device 100;

[0031] like Figure 2-3 As shown, the fixing device 100 includes: a fixing plate 110, a lowering plate 120, and a blocking block 130;

[0032] In a specific implementation, the fixing plate 110 can be externally connected to the top of the collection tank, and its main function is to support other components;

[0033] The drop plate 120 is rotatably mounted on the fixed plate 110 via a connecting rod, and the drop plate 120 can attract the blocking block 130.

[0034] The blocking block 130 is disposed on the upper wall of the fixing device 100 and connected to the sensing block 300. An electromagnet is disposed inside the blocking block 130. In specific implementation, when the sensing block 300 charges the blocking block 130, the electromagnet inside the blocking block 130 can generate a large magnetic force to attract the falling plate 120. Conversely, the falling plate 120 will rotate downward under its own gravity. The maximum downward rotation angle of the falling plate 120 is 45 degrees. This allows the electromagnet to re-attract the falling plate 120 and rotate it upward to keep it horizontal after it becomes magnetic. When the sensing block 300 is not impacted or squeezed, the electromagnet inside the blocking block 130 is in the state of attracting the falling plate 120.

[0035] like Figure 2 As shown, the balancing device 400 includes: a balancing block 410, a collision block 420, and a limiting rod 430;

[0036] The balance block 410 is rotatably mounted on the output end of the electric telescopic rod 200; the balance block 410 is made of transparent material and has a data acquisition device inside, which can collect information from the battery side.

[0037] The collision block 420 is rotatably mounted on the side end of the balance block 410 near the friction block 810 via a rotating bearing. The surface of the collision block 420 is smooth and the blocking effect of the protrusion 820 is weak. In actual implementation, it can collide with the conical block 830 and drive it to move. The collision block 420 has a magnetism that attracts the friction block 810 and the conical block 830.

[0038] The limiting rod 430 is set on the upper wall of the fixing device 100 through a connecting rod. The limiting rod 430 mainly serves to limit the rotation of the collision block 420.

[0039] like Figure 3 As shown, the driving device 600 includes: a circular plate 610, a spiral rod 620, an elastic telescopic rod 630, a rotating block 640, and a cross support frame 650;

[0040] The circular plate 610 is disposed on the side end of the rotating ring block 500 near the support plate 700.

[0041] The spiral rod 620 is located at the central axis of the circular plate 610, and the two rotate in the same direction.

[0042] The number of elastic telescopic rods 630 is two, which are set on the cross support frame 650. The elastic telescopic rods 630 always have a driving force to drive the cross support frame 650 in a direction away from the support plate 700.

[0043] The rotating block 640 is mounted on the support plate 700 via a connecting rod and can engage with the helical rod 620;

[0044] The cross support frame 650 is mounted on the circular plate 610 via a rotating bearing; the side end of the cross support frame 650 is rough and can contact the protrusion 820, and when the cross support frame 650 moves toward the support plate 700, the elastic resistance between the side end of the cross support frame 650 and the protrusion 820 is small, and conversely, when the cross support frame 650 moves away from the support plate 700, the elastic resistance is large.

[0045] like Figure 2 As shown, the deceleration device 800 includes: a friction block 810, a protrusion 820, and a conical block 830;

[0046] The friction block 810 is movably disposed within a slide rail on the support plate 700;

[0047] The protrusions 820 are arranged at one end of the support plate 700 near the helical rod 620. The protrusions 820 are made of flexible material, with an arc surface on the side near the support plate 700 and a triangular prism inclined sliding surface on the other side. When the cross support frame 650 moves away from the support plate 700, it will collide with the arc surface of the protrusions 820. At this time, the movement of the cross support frame 650 will be subject to greater elastic resistance due to the need to overcome the elastic resistance of the arc surface of the protrusions 820. Conversely, the elastic resistance of the inclined sliding surface will be relatively smaller.

[0048] The conical block 830 is located on the side of the friction block 810 and mainly serves to adjust the position of the friction block 810.

[0049] Working principle of this invention:

[0050] The operator places the battery to be tested onto the drop plate 120 located between the balance block 410 and the rotating ring block 500. Then, the electric telescopic rod 200 extends to drive the balance block 410 to move toward the rotating ring block 500 to clamp the battery. Afterward, the balance block 410 continues to move, causing the rotating ring block 500 to move toward the support plate 700. The battery also leaves the area above the drop plate 120. The movement of the balance block 410 drives the screw rod 620 to pass through the rotating block 640. During this process, the screw rod 620 rotates continuously, causing the rotating ring block 500 to rotate as well. The rotation of the rotating ring block 500, through the battery, also drives the balance block 410 to rotate. During this process, the data acquisition block 900 collects information from the side of the battery. At the same time, the data acquisition devices inside the balance block 410 and the rotating ring block 500 can collect information from both ends of the battery.

[0051] After the battery data collection is completed, if the external controller determines that the battery is normal based on the collected information, the electric telescopic rod 200 will retract and quickly drive the balance block 410 to move away from the support plate 700 to reset.

[0052] At this time, the rotating ring block 500 located on the other side of the battery will be unable to move quickly together with the balance block 410 in a direction away from the support plate 700 due to the elastic resistance of the upper cross support frame 650 by the arc surface of the protrusion 820; then the battery will lose support due to the speed difference between the balance block 410 and the rotating ring block 500, and will fall into the outer receiving groove below the notch of the fixed plate 110.

[0053] When the battery malfunctions, the electric telescopic rod 200 will also reset, but will remain clamped with the rotating ring block 500 until the battery is basically moved above the drop plate 120. Then the electric telescopic rod 200 will quickly reset and drive the balance block 410 to collide with the sensing block 300. After the sensing block 300 is impacted and squeezed, the power supply inside will stop supplying power to the blocking block 130, which will cause the blocking block 130 to stop adhering to the drop plate 120. The drop plate 120 will then rotate downwards, and the battery on it will fall into another external collection tank to complete the sorting and screening of batteries in different states.

[0054] During the collision between the balance block 410 and the sensing block 300, the collision block 420 will press against the conical block 830 and, under the action of the inclined surface of the conical block 830, drive the friction block 810 to move away from the balance block 410. After the friction block 810 moves, the cross support frame 650 will separate from the protrusion 820 and will no longer be blocked by it. This allows the rotating ring block 500 to quickly return to the initial state and wait for the next detection.

[0055] By clamping and rotating the device at both ends, it can adapt to battery shapes of different sizes. Compared to single cylindrical batteries, this expands the detection range and avoids the problem that existing lithium battery surface screening visual inspection devices often use a columnar drive block to rotate the target in order to collect side information of the target. This method is simple and fast, but it can only be used for cylindrical targets. It cannot be effectively used for targets whose shape cannot be driven by the columnar drive block, thus limiting the inspection range.

Claims

1. A device for screening surface defects of various types of batteries, characterized by, The utility model relates to a kind of automatic battery testing device, including: fixed device (100), electric telescopic rod (200), inductive block (300), balancing device (400), rotating ring block (500), driving device (600), support plate (700), deceleration device (800) and collection block (900);Electric telescopic rod (200) is arranged on the upper wall of fixed device (100), inductive block (300) is built-in power supply and arranged on the upper wall of fixed device (100);Balancing device (400) is rotatably arranged at the output end of electric telescopic rod (200), and the balancing device (400) includes balancing block (410), collision block (420) and limiting rod (430), balancing block (410) is transparent material and is internally provided with acquisition device, collision block (420) is arranged at the side end of balancing block (410) by rotating bearing, and the surface of collision block (420) is smooth and has magnetism;Rotating ring block (500) is connected to driving device (600), and driving device (600) includes screw rod (620), elastic telescopic rod (630), rotating block (640), circular plate (610) and cross support frame (650), the screw rod (620) is coaxially connected with rotating ring block (500), the rotating block (640) is engaged with screw rod (620), the circular plate (610) is fixed on one side of rotating ring block (500), the cross support frame (650) is arranged on the circular plate (610) by rotating bearing and is connected with elastic telescopic rod (630), and the cross support frame (650) is driven by elastic telescopic rod (630) to be far away or close to support plate (700), and the side end of the cross support frame (650) is rough surface;Deceleration device (800) is movably arranged in the slide of support plate (700), and the deceleration device (800) includes friction block (810), protrusion (820) and conical block (830), the friction block (810) is movably arranged in the slide on support plate (700), the protrusion (820) is arranged at one end of support plate (700), the protrusion (820) is made of flexible material, one side of the protrusion (820) is circular arc surface, the other side of the protrusion (820) is inclined slide surface, the conical block (830) is arranged at the side end of friction block (810), the collision block (420) and the conical block (830) are magnetically attracted and contacted to drive friction block (810) to move, and the cross support frame (650) and the protrusion (820) of deceleration device (800) are contacted to generate elastic resistance;Collection block (900) is movably arranged in the slide of fixed device (100);When the screw rod (620) of driving device (600) passes through rotating block (640), rotating ring block (500) is rotated, so that balancing block (410) and rotating ring block (500) are clamped battery and synchronously rotated together. ​ 2. A device for screening surface defects of various types of batteries according to claim 1, characterized in that: The fixing device (100) comprises a fixing plate (110), a falling plate (120) and a blocking block (130), the falling plate (120) is rotatably arranged on the fixing plate (110) through a connecting rod and is magnetically attracted to the blocking block (130), the blocking block (130) is internally provided with an electromagnet, and an inductive block (300) controls the magnetic state of the electromagnet to drive the falling plate (120) to rotate.

3. A device for screening surface defects of various types of batteries according to claim 2, characterized in that: The maximum rotation angle of the falling plate (120) is 45 degrees, when the electromagnet is powered off, the falling plate (120) rotates downward under the action of gravity, so that the battery falls into the corresponding collecting groove.

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