Belt conveying aluminum shell battery cell appearance detection equipment

Abstract

The invention discloses belt conveying aluminum shell battery cell appearance detection equipment, which comprises a belt line assembly, which comprises a belt line and a plurality of clamping plate assemblies which are circularly conveyed along with the belt line, and each clamping plate assembly is used for independently clamping a battery cell which is orthogonally arranged relative to the belt line and is in a side standing posture, the battery cell feeding assembly sequentially passes through a battery cell feeding station, a polar column surface and bottom surface photographing detection station and a pushing station used for pushing a battery cell to leave a belt line, and the belt line pulling assembly comprises a belt pulling line arranged orthogonally with the belt line and a battery cell clamping roller path arranged along the belt pulling line; and the battery cell from the belt line is continuously kept in the battery cell clamping roller path in a side-standing posture, moves forwards along with the pulling belt line, and sequentially passes through the battery cell large surface detection station, the first battery cell top side surface detection station, the primary jacking and overturning station, the second battery cell top side surface detection station and the secondary jacking and overturning station. The possibility that the surface of the battery cell is scratched is greatly reduced, and the detection rhythm is accelerated.

Description

Technical Field

[0001] The present invention relates to the field of battery cell appearance inspection in the lithium battery industry, and in particular to a belt-transmitted aluminum shell battery cell appearance inspection device. Background Art

[0002] In the lithium battery industry, the appearance inspection of battery cells is very important. In the battery cell production line, it is often necessary to conduct six-sided appearance inspections on the final product.

[0003] In order to meet the accuracy and timeliness of appearance inspection, the inspection equipment will use a large number of industrial cameras. The traditional mechanical cell grabbing often adopts servo grippers, and the movement process involves many rotations and grabbing and releasing actions. Therefore, the structural design is complex, the materials are expensive, and it is easy to cause scratches on the surface of the cell, which greatly affects the accuracy of product inspection. Summary of the invention

[0004] The purpose of the present invention is to provide a belt-transmitted aluminum shell battery core appearance inspection device, which has high functional scalability, greatly reduces the possibility of battery core surface scratches, and increases production rhythm.

[0005] To this end, the present invention provides a belt-transmitted aluminum shell battery cell appearance inspection device for performing appearance inspection on six surfaces of the aluminum shell battery cell, comprising: a belt line assembly, comprising a belt line and a plurality of clamping plate assemblies circulated with the belt line, each of the clamping plate assemblies being used to individually clamp a battery cell arranged orthogonally to the belt line and in a sideways posture, and sequentially passing through a battery cell loading station, a pole surface and bottom surface photographing inspection station, and a pushing station for pushing the battery cell away from the belt line; a pull line assembly, comprising a pull line arranged orthogonally to the belt line and a battery cell clamping roller arranged along the pull line, wherein the battery cell from the belt line continues to be maintained in the battery cell clamping roller in a sideways posture and moves forward with the pull line, and sequentially passes through a battery cell large surface inspection station, a first battery cell top and side surface inspection station, a first jacking and flipping station, a second battery cell top and side surface inspection station, and a second jacking and flipping station; a material unloading and transplanting assembly, arranged at the end of the pull line, for collecting a plurality of battery cells sequentially delivered by the pull line and transferring them as a whole to the next station.

[0006] The present invention detects the appearance of the battery cell in the form of a detection line, which greatly improves the production cycle; in order to detect the six sides of the battery cell, the gripper mechanism of the traditional detection equipment needs to grab the battery cell and adjust the shooting posture many times, while the present invention only needs to perform two flips on the detection line, reducing the number of times the battery cell is grabbed. This process greatly reduces the possibility of scratches on the surface of the battery cell. At the same time, compared with the gripper mechanism, the structure of the jacking and flipping assembly is simplified, the mechanism action is less, and the working efficiency of the equipment is increased.

[0007] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings: Figure 1 It is a schematic diagram of the plan layout of the belt-transmitted aluminum shell battery appearance inspection equipment of the present invention; Figure 2 It is a schematic diagram of the three-dimensional layout of the belt-transmitted aluminum shell battery appearance inspection equipment of the present invention; Figure 3 It is a three-dimensional structural schematic diagram of the belt line assembly of the present invention; Figure 4 is a schematic diagram of a splint assembly of the present invention; Figure 5 is a diagram of the use state of the splint assembly of the present invention; Figure 6 It is a schematic diagram of the layout of the large-surface inspection station of the battery cell of the drawstring wire assembly of the present invention; Figure 7 It is a structural schematic diagram of the jacking and turning mechanism of the present invention; Figure 8 It is a structural schematic diagram of the material cutting and transplanting assembly of the present invention. DETAILED DESCRIPTION

[0009] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0010] Combined with reference Figures 1 to 3 The belt-transmitted aluminum shell battery appearance inspection equipment of the present invention comprises a belt line assembly 1, a pull line assembly 2 and a blanking and transplanting assembly 3.

[0011] The belt line assembly 1 comprises a belt line 11 and a clamping plate assembly 12 which is circulated and transported along with the belt line.

[0012] There are multiple groups of clamping plate assemblies on the belt line. Each group of clamping plate assemblies includes, for example, four clamping plate assemblies. Each clamping plate assembly individually clamps a battery cell in a side-standing posture. Each group of clamping plate assemblies is arranged at intervals from adjacent clamping plate assemblies, and the two clamping plate assemblies inside each group of clamping plate assemblies are arranged closely to each other, so as to realize batch loading.

[0013] The battery cells in the clamping plate assembly 11 are in a sideways state and are clamped so as not to slide left or right. At the same time, the battery cells are arranged orthogonally to the belt line 11, so that the pole surface and the bottom surface of the battery cells 4 are exposed to the outside on the left and right.

[0014] The clamping plate assembly 12 is fixedly connected to the belt line 11, and moves vertically in a circular motion along the belt line, passing through the battery cell loading station 1a, the photo inspection station 1b, and the pushing station 1c in sequence.

[0015] The battery cell loading station 1a is provided with a positioning assembly 13, which is composed of a cylinder and a lateral leveling rod; the photo inspection station 1b is arranged with a pole surface camera detection mechanism 14 and a bottom surface camera detection mechanism 15, which are arranged on the left and right of the belt line; the pushing station 1c is provided with a pushing assembly 16.

[0016] When the four battery cells are caught to the battery cell loading station 1a, the positioning component 13 will first level the battery cell position laterally, and then the battery cell will move at a constant speed in a certain direction on the belt line. During the movement, the battery cell pole surface and bottom surface will be photographed and inspected. After the inspection is completed, the pushing component 16 will push the battery cells 4 in each clamping plate component 12 one by one to the pull-belt line component 2.

[0017] Combined with reference Figures 4 to 6 The clamping plate assembly 12 includes a mounting bracket 121, a sliding surface 12a composed of a plurality of bull's eye rollers 122, a clamping channel 12b composed of a front row back plate 123 and a rear row back plate 124, and a pressing wheel 125 located between the front row back plates 123. The pressing wheel 125 is used to press the battery cells in the clamping channel so as to fix the battery cells relative to the clamping channel when the battery cells are transported.

[0018] The pressure wheel 125 is installed on the top of the pressure wheel frame 126, and the lower middle part of the pressure wheel frame 126 is pivotally connected to the front end surface of the mounting bracket 121. The pressure wheel frame 126 is also in contact with the spring column 127. A pair of rollers 128 are provided at the lower end of the pressure wheel frame 126.

[0019] The pressure wheel 125 has an initial position extending into the channel, an intermediate position elastically pressing against the large surface of the battery cell after the battery cell enters the channel, and an escape position away from the channel. The pressure wheel 125 always has a movement tendency to return to the initial position under the action of the spring column 127.

[0020] The belt line 11 includes a pair of belts 111 running synchronously and a guide plate 112 located below the working surface of the pair of belts 111. A pair of guide wheels 129 are installed on both sides of the mounting bracket 121. The pair of guide wheels 129 are supported on the guide plate 112 and move along the guide plate 112, so that the splint assembly 11 can run smoothly with the belt 111.

[0021] The belt line assembly 1 further comprises a plurality of pushing assemblies 17 arranged in the interval between a pair of belts.

[0022] The pushing assembly 17 can move the pressing wheel 125 from the current position (initial position or intermediate position) to the avoidance position.

[0023] The pushing assembly 17 includes a cylinder 171 and a pushing block 172. The driving surface 17a of the pushing block is an arc surface, which is used to convert the vertical movement of the cylinder into horizontal movement. When the cylinder extends, it pushes the pressure wheel frame to pivot, thereby allowing the pressure wheel to move from the current position to the avoidance position. When the cylinder retracts, the pressure wheel position is restored.

[0024] The battery cell loading station 1a is provided with a plurality of pushing assemblies 17, which are arranged one by one corresponding to each pressure plate assembly in each group of clamping plate assemblies, and are used to remove the obstruction of the pressure wheel to the battery cell insertion into the clamping channel, so that the battery cell can be inserted into the clamping channel without resistance.

[0025] A pushing assembly 17 needs to be arranged on the pushing station 1c to release the pressing state of the pressing wheel on the battery cell, so that the battery cell can slide freely along the sliding surface with basically no friction resistance.

[0026] The pull line assembly 2 includes a pull line 21 and a cell clamping track 22. The pull line 21 is arranged orthogonally to the belt line 11, and the cell clamping track 22 is arranged along the pull line, wherein the cell 4 in a sideways posture from the belt line moves forward along the pull line 21 in the cell clamping track 22.

[0027] The pull-wire assembly 2 is provided with a battery cell large surface inspection station 2a, a first battery cell top and side surface inspection station 2b, a primary lifting and flipping station 2c, a second battery cell top and side surface inspection station 2d, and a secondary lifting and flipping station 2e.

[0028] The cell clamping roller 22 is composed of rollers on the left and right sides, and each side roller is composed of a mounting rod 221 and rollers 222 arranged at intervals on the mounting rod. The cell clamping roller 22 is arranged in sections, forming disconnected gap areas S1 and S2 on the cell large surface inspection station. The cell large surface located in this gap area is not blocked by the cell clamping roller, and the entire unblocked large surface of the cell can be obtained by continuous shooting.

[0029] The cell large surface detection station 2a is provided with cell large surface detection mechanisms 23 and 23' on the left and right, and a detection method combining a camera 232 and a laser scanner 231 can be selected. The first cell top and side surface detection station 2b and the second cell top and side surface detection station 2d are each provided with a top and side surface detection mechanism 24 and 24', and a detection method combining a camera and a laser scanner can be selected. The first lifting and flipping station 2c and the second lifting and flipping station 2e are each provided with a lifting and flipping assembly 25 and 25'.

[0030] like Figure 7 As shown, the lifting and flipping assembly 25 includes a lifting platform 251, a flipping cylinder 252, and a pair of clamps 253 / 253', wherein the pair of clamps are arranged one after the other along the moving direction of the battery cell, and each pair of clamps is driven independently by a cylinder 254, 254'.

[0031] The battery cell moves with the belt on the pull-belt wire assembly. Through system debugging, the action of the single lifting and flipping assembly can be coordinated with the pull-belt wire assembly. When the battery cell moves to the single lifting and flipping station, a pair of clamps descends into place with the lifting platform, and the battery cell is located exactly between the pair of clamps. Then the pair of clamps clamps the battery cell, lifts it, and flips it, so that the pole surface and the bottom surface of the battery cell are swapped back and forth, and the bottom side is flipped to the top side.

[0032] like Figure 8 As shown, the material removal and transplanting assembly 3 is arranged at the end of the pull line 21, including a group of battery cell clamping rollers 31 arranged side by side, and a row of driving rollers 32 are set at the bottom of the battery cell clamping rollers to drive the battery cells to move forward in the battery cell clamping rollers to the position.

[0033] The unloading and transplanting assembly 3 also includes a translation module 33, which drives each battery cell clamping roller 31 to translate a distance in a direction perpendicular to the pull line 21, so that the next battery cell clamping roller is aligned with the battery cell clamping roller on the pull line assembly, and then allows a group of battery cell clamping rollers to translate together to another position to connect with the next workstation on the battery cell assembly line.

[0034] The working process of the belt-transmitted aluminum shell battery appearance inspection device of the present invention is as follows: When the battery cell is on the belt line, it will be clamped by the clamping plate assembly to ensure that the battery cell will not slip when the belt line moves. At this time, the bottom surface and the pole surface of the battery cell are exposed to the outside. When the bottom surface and the pole surface are detected, the push assembly rises, the pressure wheel will be pushed open, the battery cell is released from the clamping state, and the battery cell will be pushed to the pull line by the pushing assembly.

[0035] On the pull-line assembly, the large-surface inspection camera and the side inspection camera will take photos and inspect the two large surfaces and one side of the battery cell respectively. Then, the one-time lifting and flipping assembly will lift and flip the battery cell, and take photos and inspect the other side of the battery cell. Finally, the second-time lifting and flipping assembly will flip the battery cell to its initial state. The unloading and transplanting assembly will collect all four battery cells and move them to the next required workstation.

[0036] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A belt-transmitted aluminum shell battery core appearance inspection device, used for performing appearance inspection on six surfaces of an aluminum shell battery core, characterized in that: include: The belt line assembly includes a belt line and a plurality of clamping plate assemblies that are circulated and transported along the belt line. Each of the clamping plate assemblies is used to clamp a battery cell that is arranged orthogonally to the belt line and is in a sideways posture. The battery cell is sequentially passed through a battery cell loading station, a pole surface and bottom surface photo inspection station, and a pushing station for pushing the battery cell away from the belt line. The pull-belt line assembly includes a pull-belt line arranged orthogonally to the belt line and a battery cell clamping roller arranged along the pull-belt line, wherein the battery cell from the belt line continues to be maintained in a sideways posture in the battery cell clamping roller and moves forward with the pull-belt line, sequentially passing through the battery cell large surface inspection station, the first battery cell top and side surface inspection station, the first lifting and flipping station, the second battery cell top and side surface inspection station, and the second lifting and flipping station.

2. The belt-transmitted aluminum shell battery appearance inspection equipment according to claim 1 is characterized in that: The clamping plate assembly includes a mounting bracket, a sliding surface composed of a plurality of bull's eye rollers on the mounting bracket, a clamping channel composed of a front row back plate and a rear row back plate, and a pressing wheel arranged between the front row back plates, wherein the pressing wheel is used to press the battery cells when the battery cells are transported. The belt line includes a pair of belts running synchronously and a pushing assembly arranged in the interval space between the pair of belts. The pushing assembly is respectively arranged at the battery cell loading position and the pushing station to force the pressure wheel of the clamping plate assembly away from the clamping channel.

3. The belt-transmitted aluminum shell battery appearance inspection equipment according to claim 1 is characterized in that: The plurality of plywood assemblies are divided into a plurality of groups, each group of plywood assemblies is arranged at intervals from adjacent plywood assemblies, and the two plywood assemblies within each group of plywood assemblies are arranged closely to each other to realize batch loading, and a positioning assembly is provided at the battery cell loading position for laterally leveling all the battery cells in each group of plywood assemblies at the same time.

4. The belt-transmitted aluminum shell battery appearance inspection equipment according to claim 1, characterized in that: The pushing station is provided with a pushing component, which includes a pushing cylinder, which is used to push the tested battery cells one by one onto the pull belt line and is located in the battery cell clamping raceway.

5. The belt-transmitted aluminum shell battery appearance inspection equipment according to claim 1, characterized in that: The primary lifting and flipping station and the secondary lifting and flipping station are each provided with a lifting and flipping mechanism for grabbing the battery cell from the battery cell clamping roller and flipping it so as to realize the swapping of the top side surface and the bottom side surface of the battery cell.

6. The belt-transmitted aluminum shell battery appearance inspection equipment according to claim 5, characterized in that: The lifting and flipping assembly includes a lifting platform, a flipping cylinder, and a pair of clamps, wherein the pair of clamps are arranged one after the other along the moving direction of the battery cell, and each clamp is driven by a cylinder alone, wherein the flipping cylinder swaps the battery cell front and back when flipping.

7. The belt-transmitted aluminum shell battery appearance inspection equipment according to claim 1, characterized in that: The battery cell large surface inspection station includes battery cell large surface inspection mechanisms that are arranged symmetrically about the pull tape line, the primary battery cell top and side surface inspection station is arranged with a top and side surface inspection mechanism for inspecting the top and side surfaces of the battery cell, and the secondary battery cell top and side surface inspection station is arranged with another top and side surface inspection mechanism for inspecting the original bottom and side surfaces of the battery cell.

8. The belt-transmitted aluminum shell battery appearance inspection equipment according to claim 1, characterized in that: The battery core large surface detection mechanism and the top and side surface detection mechanism adopt a detection method combining laser scanning and photographic detection.

9. The belt-transmitted aluminum shell battery appearance inspection equipment according to claim 1, characterized in that: The battery cell clamping raceway is arranged in sections, forming a disconnected idle area on the battery cell large surface detection station, so that the camera can continuously shoot without obstruction, thereby obtaining the entire large surface image of the battery cell.

10. The belt-transmitted aluminum shell battery appearance inspection equipment according to claim 1, characterized in that: It also includes a material unloading and transferring assembly, which is arranged at the end of the pull line and is used to collect multiple battery cells delivered in sequence by the pull line and transfer them as a whole to the next workstation.

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