A device for inspecting the appearance of square-shell battery cells

Abstract

This utility model relates to the field of battery testing technology, specifically to a square-shell battery cell appearance inspection device. It can conveniently complete the appearance inspection of each face of a square battery cell, improving inspection efficiency and effectiveness. The device includes a feeding mechanism and a discharging mechanism, with a detection mechanism disposed between them. The detection mechanism includes a first detection mechanism, an intermediate placement frame, and a second detection mechanism. The first detection mechanism includes a first picking robot and a first detection seat. The second detection mechanism includes a second picking robot and a second detection seat. Both the first and second detection seats are equipped with an infrared light source, an infrared camera, a line laser, a line scan camera, and a line scan light source. The robotic arm of the first picking robot is equipped with a length-direction gripping mechanism, and the robotic arm of the second picking robot is equipped with a width-direction gripping mechanism.

Description

Technical Field

[0001] This utility model relates to the field of battery testing technology, specifically a device for inspecting the appearance of square-shell battery cells. Background Technology

[0002] With the increasing popularity of electric vehicles, many car manufacturers are launching electric vehicles. As a crucial component of electric vehicles, the battery consists of multiple square cells stacked in series. Before assembly, each square cell needs to undergo visual inspection. Traditionally, this is done manually, which is inefficient, labor-intensive, and prone to missing problematic areas, resulting in poor inspection results. Summary of the Invention

[0003] To address the aforementioned technical problems, this utility model provides a square-shell battery cell appearance inspection device, which can conveniently complete the appearance inspection of each face of a square battery cell, thereby improving inspection efficiency and effectiveness.

[0004] The technical solution is as follows: a square-shell battery cell appearance inspection device, comprising a feeding mechanism and a discharging mechanism, characterized in that an inspection mechanism is provided between the feeding mechanism and the discharging mechanism, the inspection mechanism comprising a first inspection mechanism, an intermediate placement frame, and a second inspection mechanism, the first inspection mechanism comprising a first picking robot and a first inspection seat, the second inspection mechanism comprising a second picking robot and a second inspection seat, both the first inspection seat and the second inspection seat being equipped with an infrared light source, an infrared camera, a line laser, a line scan camera, and a line scan light source, the robotic arm of the first picking robot being equipped with a length-direction gripping mechanism, and the robotic arm of the second picking robot being equipped with a width-direction gripping mechanism.

[0005] A further feature is that the feeding mechanism includes a main feeding conveyor belt, a feeding and handling device, and a single feeding conveyor belt. The feeding and handling device includes a handling bracket, a translation seat connected to the driving mechanism is installed on the handling bracket, a lifting driving cylinder is installed on the translation seat, and a double-headed gripper cylinder is installed on the piston rod of the lifting driving cylinder. The conveyor belt of the loading list is provided with side limiting blocks on both sides and end limiting blocks at the end of the conveying. The intermediate placement rack includes a placement rack base, on which a flip support plate is mounted via a rotating shaft. One end of the flip support plate is connected to a flip drive cylinder, and a positioning block is mounted on the flip support plate. The flip support plate has a notch, and the placement rack base is equipped with a photoelectric sensor facing the notch; Both the length-direction gripping mechanism and the width-direction gripping mechanism include a gripping seat. Two symmetrically arranged movable clamping plates are installed on the gripping seat. A rack is installed on the movable clamping plate and the movable clamping plate is slidably connected to the guide rail. A gear that meshes with the racks on both sides is provided in the middle of the gripping seat. A suction cup is provided between the two movable clamping plates. One of the movable clamping plates is connected to a gripping drive cylinder. Both the first detection seat and the second detection seat are connected to a translation drive mechanism.

[0006] After adopting this utility model, the square battery cell feeding mechanism first uses the length-direction gripping mechanism of the first picking robot to grasp the two sides of the square battery cell in the width direction and the side facing the opposite direction of the picking robot after the square battery cell is fed from the feeding mechanism. Then, the width-direction gripping mechanism of the second picking robot grasps the square battery cell in the width direction and detects the remaining three sides of the square battery cell. This makes it easy to complete the appearance inspection of the entire square battery cell, improving the inspection efficiency. Furthermore, the inspection mechanism, which uses an infrared light source, an infrared camera, a line laser, a line scan camera, and a line scan light source, can ensure that the outer surface of the square battery cell can be fully inspected, thus improving the inspection effect. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the material handling device. Figure 3 This is a schematic diagram of the conveyor belt structure for the material loading list; Figure 4 This is a schematic diagram of the first (second) detection seat structure; Figure 5 This is a schematic diagram of the intermediate placement frame structure; Figure 6 This is a schematic diagram of the gripping mechanism in the length (width) direction. Detailed Implementation

[0008] See Figures 1-6As shown, a square-shell battery cell appearance inspection device includes a feeding mechanism 1 and a discharging mechanism 2. A detection mechanism 3 is arranged between the feeding mechanism 1 and the discharging mechanism 2. The detection mechanism 3 includes a first detection mechanism 4, an intermediate placement frame 5, and a second detection mechanism 6. The first detection mechanism 4 includes a first picking robot 7 and a first detection seat 8. The second detection mechanism 6 includes a second picking robot 9 and a second detection seat 10. Both the first detection seat 8 and the second detection seat 10 are equipped with an infrared light source 11, an infrared camera 12, a line laser 13, a line scanning camera 14, and a line scanning light source 15. The robotic arm of the first picking robot 7 is equipped with a length-direction gripping mechanism 16, and the robotic arm of the second picking robot 9 is equipped with a width-direction gripping mechanism 17. To improve efficiency, the first picking robot 7 is arranged on both sides of the first detection seat 8, and the second picking robot 9 is arranged on both sides of the second detection seat 10. Both the first detection seat 8 and the second detection seat 10 are connected to a translation drive mechanism, which can perform translation.

[0009] The feeding mechanism 1 includes a main feeding conveyor belt 1-1, a feeding and handling device 1-2, and a single feeding conveyor belt 1-3. The feeding and handling device 1-2 includes a handling bracket 1-4, on which a translation seat 1-5 connected to the drive mechanism is mounted. A lifting drive cylinder 1-6 is mounted on the translation seat 1-5. A double-headed gripper cylinder 1-7 is mounted on the piston rod of the lifting drive cylinder 1-6. A toothed gripping block 1-8 is mounted on the double-headed gripper cylinder 1-7 to increase friction. Batteries are spaced apart on the main feeding conveyor belt 1-1. The square battery cell 18 is conveyed by the main feeding conveyor belt 1-1 via baffle 1-8. The lifting drive cylinder 1-6 drives the double-headed gripper cylinder 1-7 to descend and grab the square battery cell 18. Then it is raised and moved horizontally above the feeding list conveyor belt 1-3. After descending, it is released so that the square battery cell 18 falls on the feeding list conveyor belt 1-3. Side limit blocks 1-9 are set on both sides of the feeding list conveyor belt 1-3 and end limit blocks 1-10 are set at the end of the conveying. The square battery cell 18 stops when it is conveyed to the end limit block 1-10, ready for testing.

[0010] Both the length-direction gripping mechanism 16 and the width-direction gripping mechanism 17 include a gripping seat 19. Two symmetrically arranged movable clamping plates 20 are mounted on the gripping seat 19. A rack 21 is mounted on the movable clamping plate 20 and the movable clamping plate 20 is slidably connected to the guide rail 24. A gear 25 is provided in the middle of the gripping seat 19 to mesh with the racks 21 on both sides. A suction cup 22 is provided between the two movable clamping plates 20. One of the movable clamping plates 20 is connected to a gripping drive cylinder 23, which can drive the two movable clamping plates 20 to clamp and release, and complete the gripping operation in conjunction with the suction cup 22.

[0011] The intermediate placement frame 5 includes a placement frame base 5-1, on which a flip support plate 5-2 is mounted via a rotating shaft. One end of the flip support plate 5-2 is connected to a flip drive cylinder 5-3. A positioning block 5-4 is mounted on the flip support plate 5-2 to position the square battery cell 18. A notch is provided on the flip support plate 5-2, and a photoelectric sensor 5-5 facing the notch is mounted on the placement frame base 5-1 to detect whether the square battery cell 18 is placed in place.

[0012] During inspection, the first material handling robot 7, with its length-direction gripping mechanism 16, approaches the square battery cell 18 on the loading conveyor belt 1-3. Then, the fixed clamping plate 20 and movable clamping plate 21 on the length-direction gripping mechanism 16 clamp the square battery cell 18, and the suction cup 22 adheres to it. The cell is then transferred to the first inspection seat 8. At this point, the left and right sides of the square battery cell are clamped by the fixed clamping plate 20 and movable clamping plate 21, and the front is adhered to by the suction cup 22. The top three sides cannot be inspected, so the top, bottom, and back sides are inspected first. During inspection, one side is first positioned facing the first inspection seat 8. Then, the first inspection seat 8 moves, allowing the infrared light source 11, infrared camera 12, and line laser 13 to engage. The line scan camera 14 and the line scan light source 15 work together to complete the detection of this side. The first material handling robot 7 drives the length direction gripping mechanism 16 to rotate and repeats the above operation to complete the detection of the other two sides. After the detection is completed, the square battery cell 18 is placed on the middle placement frame 5. Then, the second material handling robot 9, with the width direction gripping mechanism 17, approaches the middle placement frame 5. The fixed clamping plate 20 and the movable clamping plate 21 on the width direction gripping mechanism 17 work together to clamp and the suction cup 22 adsorbs the square battery cell 18. At this time, the top and bottom surfaces of the square battery cell 18 are gripped and the suction cup 22 adsorbs the front of the square battery cell 18. Then, it is moved above the second detection seat 10 to complete the detection of the remaining three sides.

Claims

1. A device for inspecting the appearance of square-shell battery cells, comprising a feeding mechanism and a discharging mechanism, characterized in that, A detection mechanism is provided between the feeding mechanism and the unloading mechanism. The detection mechanism includes a first detection mechanism, an intermediate placement frame, and a second detection mechanism. The first detection mechanism includes a first picking robot and a first detection seat. The second detection mechanism includes a second picking robot and a second detection seat. Both the first and second detection seats are equipped with an infrared light source, an infrared camera, a line laser, a line scan camera, and a line scan light source. The robotic arm of the first picking robot is equipped with a length-direction gripping mechanism, and the robotic arm of the second picking robot is equipped with a width-direction gripping mechanism.

2. The appearance inspection device for square-shell battery cells according to claim 1, characterized in that, The feeding mechanism includes a main feeding conveyor belt, a feeding and handling device, and a single feeding conveyor belt. The feeding and handling device includes a handling bracket, a translation seat connected to the drive mechanism is installed on the handling bracket, a lifting drive cylinder is installed on the translation seat, and a double-headed gripper cylinder is installed on the piston rod of the lifting drive cylinder.

3. The appearance inspection device for square-shell battery cells according to claim 2, characterized in that, The conveyor belt of the loading list is equipped with side limit blocks on both sides and end limit blocks at the end of the conveyor.

4. The appearance inspection device for square-shell battery cells according to claim 1, characterized in that, The intermediate placement frame includes a placement frame base, on which a flip support plate is mounted via a rotating shaft. One end of the flip support plate is connected to a flip drive cylinder, and a positioning block is mounted on the flip support plate.

5. The appearance inspection device for square-shell battery cells according to claim 4, characterized in that, The flip support plate has a notch, and the placement rack base is equipped with a photoelectric sensor facing the notch.

6. The appearance inspection device for square-shell battery cells according to claim 1, characterized in that, Both the length-direction gripping mechanism and the width-direction gripping mechanism include a gripping seat. Two symmetrically arranged movable clamping plates are mounted on the gripping seat. A rack is mounted on the movable clamping plate and the movable clamping plate is slidably connected to a guide rail. A gear that meshes with the racks on both sides is provided in the middle of the gripping seat. A suction cup is provided between the two movable clamping plates. One of the movable clamping plates is connected to a gripping drive cylinder.

7. The appearance inspection device for square-shell battery cells according to claim 1, characterized in that, Both the first detection seat and the second detection seat are connected to a translation drive mechanism.

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