Battery cell appearance detection equipment

Abstract

The utility model belongs to the technical field of battery cell detection, and discloses battery cell appearance detection equipment. The battery cell appearance detection equipment comprises a conveying device, a detection device, a feeding device and a discharging device, the conveying device is used for conveying a battery cell, the detection device is used for detecting the appearance of the battery cell, the feeding device is used for conveying the battery cell to the conveying device, and the feeding device comprises a plurality of feeding conveying mechanisms arranged in the feeding conveying direction; one feeding conveying mechanism bears one battery cell, the discharging device is used for bearing the battery cells conveyed by the conveying device, the discharging device comprises a plurality of discharging conveying mechanisms arranged in the discharging conveying direction, and one discharging conveying mechanism bears one battery cell. According to the equipment, automatic appearance detection can be carried out on the battery cells, and in the feeding and discharging processes, operation or stop of each feeding conveying mechanism and each discharging conveying mechanism can be controlled respectively, so that it is guaranteed that the adjacent battery cells cannot collide with each other, it is further guaranteed that the battery cells cannot be damaged, and the detection efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of battery core detection, in particular to battery core appearance detection equipment. Background Art

[0002] Blade cells are long and thin cells that are shaped like a blade. Through structural innovation, blade cells have greatly improved volume utilization, while also increasing energy density and battery life. As a result, the market share of blade cells is increasing. After blade cells are produced, their surfaces are easily bruised or scratched, resulting in various surface defects, which can cause quality problems during use.

[0003] In the prior art, general manufacturers will deploy battery cell appearance inspection equipment to perform automated appearance inspection on blade batteries. However, during the process of loading and unloading battery cells, adjacent battery cells are prone to collision during transportation, which will not only cause damage to the battery cells, but also affect the inspection efficiency.

[0004] Therefore, a new battery cell appearance inspection equipment is urgently needed to solve the problems of adjacent battery cells being easily collided during loading and unloading, battery cells being easily damaged and having low inspection efficiency. Utility Model Content

[0005] The utility model aims to provide a battery core appearance inspection device, in which adjacent battery cores will not collide during loading and unloading, so that the battery cores will not be damaged and the inspection efficiency is high.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] Battery cell appearance inspection equipment, including:

[0008] A conveying device, used for conveying the battery cells;

[0009] A detection device, used to detect the appearance of the battery cell;

[0010] A loading device, used to transport the battery cell to the conveying device, wherein the loading device comprises a plurality of loading conveying mechanisms arranged along a loading conveying direction, and one of the loading conveying mechanisms carries one of the battery cells;

[0011] The unloading device is used to receive the battery cell conveyed by the conveying device, and the unloading device includes a plurality of unloading conveying mechanisms arranged along the unloading conveying direction, and one of the unloading conveying mechanisms carries one battery cell.

[0012] As a preferred solution, the conveying device includes a bottom and side detection conveying mechanism, an explosion-proof valve and pole detection conveying mechanism, a first conveying mechanism, a large surface detection conveying mechanism, a second conveying mechanism, a top surface detection conveying mechanism and a material transfer mechanism arranged in sequence from upstream to downstream.

[0013] As a preferred solution, the bottom and side surface detection and conveying mechanism includes:

[0014] A first clamping assembly, used for clamping the battery core;

[0015] A first bottom surface and side surface detection drive assembly is used to drive the first clamping assembly to move in the up and down direction;

[0016] The second bottom surface and side surface detection driving assembly is used to drive the first bottom surface and side surface detection driving assembly to move along a first direction, and the first direction is perpendicular to the up-down direction.

[0017] As a preferred solution, the explosion-proof valve and pole detection and delivery mechanism include:

[0018] A plurality of first clamping components, used for clamping the battery core;

[0019] A first explosion-proof valve and pole detection drive assembly, used to drive the plurality of first clamping assemblies to move along a first direction;

[0020] The second explosion-proof valve and pole detection drive assembly is used to drive the first clamping assembly to move along a first direction to change the distance between two adjacent first clamping assemblies.

[0021] As a preferred solution, the first transport mechanism includes:

[0022] A first clamping assembly, used for clamping the battery core;

[0023] A first transport driving assembly, used for driving the first clamping assembly to move in an up-down direction;

[0024] The second transport driving assembly is used to drive the first transport driving assembly to move along a first direction, and the first direction is perpendicular to the up-down direction.

[0025] As a preferred solution, the large surface detection and conveying mechanism includes:

[0026] A plurality of second clamping components, used for clamping the battery core;

[0027] One or more first large surface detection drive assemblies, used to drive the second clamping assembly to move in the up and down direction;

[0028] A plurality of second large-surface detection drive assemblies are used to drive the first large-surface detection drive assembly or the second clamping assembly to move along a second direction, and the second direction is perpendicular to the up-down direction.

[0029] As a preferred solution, the large surface detection and conveying mechanism further includes:

[0030] Multiple positioning components, the second large surface detection drive component is relatively arranged with the positioning components on both sides along the first direction, the positioning components include a positioning member and a positioning drive member, the positioning drive member is used to drive the positioning member to move along the first direction, so that the positioning members relatively arranged along the first direction can jointly abut and push the battery cell, and the first direction, the second direction and the up and down directions are perpendicular to each other.

[0031] As a preferred solution, the feeding device comprises:

[0032] A main unloading channel, used for receiving the battery cells transported by the conveying device;

[0033] A discharge channel for unqualified products, used for conveying the battery cells that fail the appearance inspection;

[0034] The transfer mechanism is used to transfer the battery cells that fail the appearance inspection from the main material discharge channel to the unqualified product discharge channel.

[0035] As a preferred embodiment, the conveying device comprises:

[0036] The first clamping assembly includes a clamping drive and a plurality of clamping members, wherein the plurality of clamping members are arranged at the output end of the clamping drive, and the clamping drive is used to drive the plurality of clamping members to approach each other so that the plurality of clamping members clamp the battery core together.

[0037] As a preferred solution, the first clamping assembly further includes:

[0038] a first mounting member;

[0039] A second mounting member extending in the up-down direction, wherein the first mounting member is connected to an upper end of the second mounting member;

[0040] A third mounting member, connected to the lower end of the second mounting member and used to support the clamping driving member;

[0041] The elastic member extends in the up-down direction and is arranged between the first mounting member and the clamping driving member.

[0042] Beneficial effects:

[0043] The utility model provides a battery cell appearance inspection device, which includes a conveying device, a detection device, a loading device and a unloading device. The conveying device is used to convey the battery cell. During the conveying process, the detection device detects the appearance of the battery cell, and the loading device conveys the battery cell to the conveying device. The unloading device is used to receive the battery cell conveyed by the conveying device, thereby realizing automatic appearance inspection of the battery cell. In addition, the loading device includes a plurality of loading conveying mechanisms arranged along the loading conveying direction, and one loading conveying mechanism carries one battery cell. The unloading device includes a plurality of unloading conveying mechanisms arranged along the unloading conveying direction, and one unloading conveying mechanism carries one battery cell. In this way, during the loading and unloading process, the operation or stop of each loading conveying mechanism and each unloading conveying mechanism can be controlled separately, thereby ensuring that there is no collision between adjacent battery cells, thereby ensuring that the battery cells are not damaged and the detection efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 It is a top view of a battery cell appearance inspection device provided by an embodiment of the utility model;

[0045] Figure 2 It is a front view of the explosion-proof valve and pole detection and conveying mechanism provided by the embodiment of the utility model;

[0046] Figure 3 It is a structural schematic diagram of a large surface detection and conveying mechanism provided by an embodiment of the utility model;

[0047] Figure 4 It is a top view of the large-surface detection and conveying mechanism provided by an embodiment of the utility model;

[0048] Figure 5 It is a front view of the first clamping assembly provided by an embodiment of the utility model;

[0049] Figure 6 It is a side view of the first clamping assembly provided in an embodiment of the utility model.

[0050] In the figure:

[0051] 100. Battery cell;

[0052] 10. Conveying device; 11. Bottom and side detection conveying mechanism; 111. First clamping assembly; 1111. Clamping drive member; 1112. Clamping member; 1113. First mounting member; 1114. Second mounting member; 1115. Third mounting member; 1116. Elastic member; 1117. Limiting member; 112. First bottom and side detection drive assembly; 113. Second bottom and side detection drive assembly; 12. Explosion-proof valve and pole detection conveying mechanism; 121. First explosion-proof valve and pole detection drive assembly; 122. Second explosion-proof valve and pole detection drive assembly; 13. First Transport mechanism; 131, first transport drive assembly; 132, second transport drive assembly; 14, large surface detection and conveying mechanism; 141, second clamping assembly; 142, first large surface detection and driving assembly; 143, second large surface detection and driving assembly; 144, positioning assembly; 1441, positioning member; 1442, positioning drive member; 15, second transport mechanism; 151, third transport drive assembly; 152, fourth transport drive assembly; 16, top surface detection and conveying mechanism; 17, material transfer mechanism; 171, first material transfer drive assembly; 172, second material transfer drive assembly;

[0053] 20. Detection device;

[0054] 30. Feeding device; 31. Feeding conveying mechanism;

[0055] 40. Unloading device; 41. Unloading conveying mechanism; 42. Main unloading channel; 43. Unloading channel for unqualified products; 44. Transfer mechanism; 45. Unloading code scanning mechanism. DETAILED DESCRIPTION

[0056] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0057] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0059] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0060] like Figure 1 As shown, this embodiment provides a battery cell 100 appearance inspection device, which can be used for the appearance inspection of blade batteries 100, and can also be used for the appearance inspection of other types of batteries 100. This embodiment is mainly described for blade batteries 100. The battery cell 100 appearance inspection device includes a conveying device 10, a detection device 20, a loading device 30 and a unloading device 40. The conveying device 10 is used to convey the battery cell 100, the detection device 20 is used to detect the appearance of the battery cell 100, the loading device 30 is used to convey the battery cell 100 to the conveying device 10, the loading device 30 includes a plurality of loading conveying mechanisms 31 arranged along the loading conveying direction, and one loading conveying mechanism 31 carries one battery cell 100, and the unloading device 40 is used to receive the battery cell 100 conveyed by the conveying device 10, and the unloading device 40 includes a plurality of unloading conveying mechanisms 41 arranged along the unloading conveying direction, and one unloading conveying mechanism 41 carries one battery cell 100.

[0061] In the battery cell 100 appearance inspection device, the inspection device 20 inspects the appearance of the battery cell 100 during the process of the conveying device 10 conveying the battery cell 100, and the loading device 30 conveys the battery cell 100 to the conveying device 10, and the unloading device 40 is used to receive the battery cell 100 conveyed by the conveying device 10, thereby realizing the automatic appearance inspection of the battery cell 100. In addition, the loading device 30 includes a plurality of loading conveying mechanisms 31 arranged along the loading conveying direction, and one loading conveying mechanism 31 carries one battery cell 100, and the unloading device 40 includes a plurality of unloading conveying mechanisms 41 arranged along the unloading conveying direction, and one unloading conveying mechanism 41 carries one battery cell 100, so that in the process of loading and unloading, the operation or stop of each loading conveying mechanism 31 and each unloading conveying mechanism 41 can be controlled respectively, so as to ensure that there is no collision between adjacent battery cells 100, thereby ensuring that the battery cell 100 is not damaged and the inspection efficiency is high.

[0062] In addition, if Figure 1 As shown, the loading conveying mechanism 31 and the unloading conveying mechanism 41 are both conveyor belt conveying mechanisms, which have stable conveying, convenient operation and low cost. In other embodiments, the loading conveying mechanism 31 and the unloading conveying mechanism 41 can also be roller conveying mechanisms, etc., which is not limited in this embodiment.

[0063] In addition, if Figure 1 As shown, in this embodiment, the detection device 20 is mainly composed of various cameras or optical components, such as a line scan camera, an area array camera, and a 3D profilometer, etc. In addition, the detection device 20 is arranged at a corresponding position of the conveying device 10 to cooperate with the conveying device 10 to perform appearance inspection on the battery cell 100.

[0064] like Figure 1 As shown, the feeding conveying mechanism 31 conveys the battery cell 100 along the second direction. At the end of the feeding device 30, the feeding device 30 is provided with a feeding code scanning mechanism, which is used to scan the battery cell 100 to obtain the information of the battery cell 100, so as to facilitate the subsequent classification of the battery cell 100 according to the detection results and the information of the battery cell 100, wherein the second direction is perpendicular to the up-down direction. In addition, in this embodiment, the feeding device 30 is provided with two feeding channels, so that two rows of battery cells 100 can be conveyed at a time, thereby improving the detection efficiency.

[0065] like Figure 1As shown, the conveying device 10 includes a bottom and side inspection conveying mechanism 11, an explosion-proof valve and pole inspection conveying mechanism 12, a first conveying mechanism 13, a large surface inspection conveying mechanism 14, a second conveying mechanism 15, a top surface inspection conveying mechanism 16 and a material transfer mechanism 17, which are arranged in sequence from upstream to downstream. Therefore, the appearance inspection equipment of the battery cell 100 can realize the appearance inspection of the bottom surface, side surface, explosion-proof valve, pole, large surface and top surface of the battery cell 100, and the inspection position is more comprehensive, so the appearance quality of the battery cell 100 that has been inspected and meets the standards will also be higher.

[0066] like Figure 1 As shown, the bottom and side detection conveying mechanism 11 includes a first clamping component 111, a first bottom and side detection driving component 112 and a second bottom and side detection driving component 113. The first clamping component 111 is used to clamp the battery cell 100, the first bottom and side detection driving component 112 is used to drive the first clamping component 111 to move in the up and down directions, and the second bottom and side detection driving component 113 is used to drive the first bottom and side detection driving component 112 to move in the first direction. The first direction, the second direction and the up and down directions are perpendicular to each other. Specifically, there are two first clamping components 111, and one first clamping component 111 clamps one battery cell 100, so the bottom and side detection conveying mechanism 11 can clamp two battery cells 100 from the loading conveying mechanism 31 at one time, and then the first bottom and side detection driving component 112 drives the first clamping component 111 to move upward, and then the second bottom and side detection driving component 113 drives the first bottom and side detection driving component 112 to move along the first direction. During the movement, the detection device 20 performs appearance inspection on the bottom and side of the battery cell 100, and the detection device 20 for bottom detection is arranged below the first bottom and side detection drive component 112, and the detection device 20 for side detection is arranged on both sides of the second bottom and side detection drive component 113 along the second direction. In this embodiment, the first bottom surface and side surface detection drive component 112 and the second bottom surface and side surface detection drive component 113 can be a structure driven by a linear motor or a rotary motor in combination with a screw-nut assembly. The linear motor has high precision, and the rotary motor driven in combination with a screw-nut assembly is more stable. In addition, all other structures that can realize the driving function are within the protection scope of this embodiment.

[0067] like Figure 1 and Figure 2As shown, the explosion-proof valve and pole detection conveying mechanism 12 includes a plurality of first clamping components 111, a first explosion-proof valve and pole detection driving component 121 and a second explosion-proof valve and pole detection driving component 122. The plurality of first clamping components 111 are used to clamp the battery cell 100. The first explosion-proof valve and pole detection driving component 121 is used to drive the plurality of first clamping components 111 to move in a first direction. The second explosion-proof valve and pole detection driving component 122 is used to drive the first clamping component 111 to move in a first direction to change the distance between two adjacent first clamping components 111. Specifically, after the appearance inspection of the bottom and side surfaces of the battery cell 100, the first bottom and side surface inspection driving component 112 drives the first clamping component 111 to move downward, thereby transferring the battery cell 100 to the first clamping component 111 in the explosion-proof valve and pole detection conveying mechanism 12, and then the first explosion-proof valve and pole detection driving component 121 drives multiple first clamping components 111 to move in the first direction, and at the same time, the second explosion-proof valve and pole detection driving component 122 drives one of the first clamping components 111 to move in the first direction to change the distance between two adjacent first clamping components 111, so that the distance between adjacent battery cells 100 matches the distance between the detection devices 20, ensuring the accuracy of the appearance inspection of the battery cell 100 by the detection device 20. At this stage, the detection device 20 performs appearance inspection on the explosion-proof valve and pole of the battery cell 100.

[0068] like Figure 2 As shown, in this embodiment, the explosion-proof valve and pole detection conveying mechanism 12 includes two first clamping components 111, each first clamping component 111 clamps a battery cell 100, one first clamping component 111 is directly arranged at the output end of the first explosion-proof valve and pole detection drive component 121, and the other first clamping component 111 is arranged at the output end of the second explosion-proof valve and pole detection drive component 122, and the second explosion-proof valve and pole detection drive component 122 is also arranged at the output end of the first explosion-proof valve and pole detection drive component 121. In this way, when the first explosion-proof valve and pole detection drive component 121 is driven, the second explosion-proof valve and pole detection drive component 122 can adjust the distance between adjacent first clamping components 111, so that the adjustment is more convenient and more efficient. In this embodiment, the first explosion-proof valve and pole detection drive component 121 is a structure driven by a linear motor or a rotary motor in conjunction with a screw nut assembly, and the second explosion-proof valve and pole detection drive component 122 is a cylinder, which has a simple structure and low cost. In other embodiments, the second explosion-proof valve and pole detection drive component 122 may also be a structure driven by a linear motor or a rotary motor in conjunction with a screw nut assembly, which is not limited in this embodiment.

[0069] like Figure 1As shown, the first transport mechanism 13 includes a first clamping assembly 111, a first transport drive assembly 131 and a second transport drive assembly 132. The first clamping assembly 111 is used to clamp the battery cell 100. The first transport drive assembly 131 is used to drive the first clamping assembly 111 to move in the up and down direction. The second transport drive assembly 132 is used to drive the first transport drive assembly 131 to move in the first direction. Specifically, the first transport drive assembly 131 drives the first clamping assembly 111 to move downward, thereby clamping the battery cell 100 on the explosion-proof valve and pole detection and conveying mechanism 12, and then the first transport drive assembly 131 drives the first clamping assembly 111 to move upward, and then the second transport drive assembly 132 drives the first transport drive assembly 131 to move in the first direction, thereby transporting the battery cell 100 to the large surface detection and conveying mechanism 14. In this embodiment, the first transport drive assembly 131 and the second transport drive assembly 132 are structures driven by a linear motor or a rotary motor and a screw nut assembly. In this embodiment, the first transport mechanism 13 is provided with two first clamping assemblies 111 , and one first clamping assembly 111 clamps one battery cell 100 , so that the first transport mechanism 13 can clamp two battery cells 100 transported by the explosion-proof valve and pole detection transport mechanism 12 at one time.

[0070] like Figure 1As shown, the large surface detection conveying mechanism 14 includes a plurality of positioning components 144. The positioning components 144 are arranged on both sides of the large surface detection conveying mechanism 14 in a first direction. The positioning components 144 include a positioning member 1441 and a positioning driving member 1442. The positioning driving member 1442 is used to drive the positioning member 1441 to move in the first direction, so that the positioning members 1441 arranged in a relative manner in the first direction abut against and push the battery cell 100. Specifically, the first transport driving member 131 drives the first clamping member 111 to move downward, and then the first clamping member 111 places the battery cell 100 between the two positioning components 144 arranged in a relative manner in the first direction, and then the positioning driving member 1442 drives the positioning member 1441 to move in the first direction, so that the battery cell 100 is pushed by the two relatively arranged positioning members 1441 so that the battery cell 100 remains in the positioned position, thereby facilitating the subsequent transportation of the battery cell 100 by the large surface detection conveying mechanism 14. In the present embodiment, the positioning drive member 1442 is a cylinder, which has a simple structure and low cost. In other embodiments, the positioning drive member 1442 may also be a structure driven by a linear motor or a rotary motor in conjunction with a screw nut assembly, which is not limited in the present embodiment. It should be noted that in the present embodiment, there are two positioning assemblies 144, and two positioning assemblies 144 can realize the positioning of one battery cell 100 at a time. However, in the present embodiment, the first transport mechanism 13 can clamp two battery cells 100 at a time, so the first transport mechanism 13 places the battery cells 100 in sequence between the positioning assemblies 144. In other embodiments, other numbers of positioning assemblies 144 can be set according to usage requirements, which is not limited in the present embodiment.

[0071] In addition, if Figure 1 , Figure 3 and Figure 4 As shown, the large surface detection conveying mechanism 14 also includes a plurality of second clamping components 141, one or more first large surface detection drive components 142 and a plurality of second large surface detection drive components 143. The plurality of second clamping components 141 are used to clamp the battery cell 100, the one or more first large surface detection drive components 142 are used to drive the second clamping component 141 to move in the up and down direction, and the plurality of second large surface detection drive components 143 are used to drive the first large surface detection drive component 142 or the second clamping component 141 to move in the second direction. In this embodiment, the first large surface detection drive component 142 and the second large surface detection drive component 143 are structures driven by a linear motor or a rotary motor and a screw nut assembly.

[0072] Specifically, if Figure 1 , Figure 3 and Figure 4As shown, in this embodiment, the number of the second clamping assembly 141, the first large surface detection drive assembly 142 and the second large surface detection drive assembly 143 are all two, and the second large surface detection drive assembly 143 is used to drive the first large surface detection drive assembly 142 to move along the second direction. After the battery cell 100 is positioned by the positioning assembly 144, the battery cell 100 is clamped by the second clamping assembly 141, and one second clamping assembly 141 clamps one battery cell 100, and then the second large surface detection drive assembly 143 drives the first large surface detection drive assembly 142 to drive the second clamping assembly 141 to move along the second direction. During the movement, the detection device 20 performs a large surface appearance detection on the battery cell 100. At the same time, the two second clamping components 141 are arranged along the second direction. Therefore, when one of the second clamping components 141 clamps the battery cell 100 for inspection, the other second clamping component 141 is driven by the first large surface detection drive component 142 to move upward or downward to avoid the second clamping component 141 clamping the battery cell 100 in the up and down directions. Then the second large surface detection drive component 143 drives the first large surface detection drive component 142 to drive the second clamping component 141 that does not clamp the battery cell 100 to move along the second direction toward the positioning component 144. Then the second clamping component 141 that does not clamp the battery cell 100 clamps the battery cell 100 for inspection. This arrangement allows the large surface detection conveying mechanism 14 to simultaneously convey two battery cells 100 for inspection, thereby improving the inspection efficiency.

[0073] In other embodiments, the number of second clamping assemblies 141 can be more, so as to clamp more battery cells 100 for detection at the same time. More second clamping assemblies 141 can be set at the output end of the first large surface detection drive assembly 142, or directly set at the output end of the second large surface detection drive assembly 143, and the number of the first large surface detection drive assembly 142 and the second large surface detection drive assembly 143 can be adjusted at the same time. In addition, the first large surface detection drive assembly 142 can be one, and one second clamping assembly 141 can be directly set at the output end of the second large surface detection drive assembly 143. When the two second clamping assemblies 141 are avoiding each other, only one first large surface detection drive assembly 142 is needed to drive one second clamping assembly 141 to move in the up and down direction, so the cost of such a setting is lower. In addition, more first large surface detection drive components 142 and second large surface detection drive components 143 can be set. The second large surface detection drive components 143 can be arranged not only along the first direction, but also along the up and down directions, as long as it can be ensured that the multiple second clamping components 141 can avoid each other while clamping the battery cell 100 for detection.

[0074] like Figure 1As shown, the second transport mechanism 15 includes a first clamping assembly 111, a third transport drive assembly 151 and a fourth transport drive assembly 152. The first clamping assembly 111 is used to clamp the battery cell 100, the third transport drive assembly 151 is used to drive the first clamping assembly 111 to move in the up and down direction, and the fourth transport drive assembly 152 is used to drive the third transport drive assembly 151 to move in the first direction. Specifically, the third transport drive assembly 151 drives the first clamping assembly 111 to move downward, thereby clamping the battery cell 100 on the large surface detection conveying mechanism 14, and then the third transport drive assembly 151 drives the first clamping assembly 111 to move upward, and then the fourth transport drive assembly 152 drives the third transport drive assembly 151 to move in the first direction, thereby transporting the battery cell 100 to the top surface detection conveying mechanism 16. In this embodiment, the third transport drive assembly 151 and the fourth transport drive assembly 152 are structures driven by a linear motor or a rotary motor and a screw nut assembly. In this embodiment, the second transport mechanism 15 is provided with two first clamping assemblies 111 , and one first clamping assembly 111 clamps one battery cell 100 , so that the second transport mechanism 15 can clamp two battery cells 100 transported by the large-surface inspection transport mechanism 14 at one time.

[0075] like Figure 1 As shown, the top surface detection conveying mechanism 16 includes two first clamping components 111 and a top surface detection conveying component, and the top surface detection conveying component is used to drive the first clamping component 111 to move along the first direction. Specifically, the third transport drive component 151 drives the first clamping component 111 to move downward, so that the battery cell 100 is placed on the first clamping component 111 of the top surface detection conveying mechanism 16, one first clamping component 111 clamps one battery cell 100, and then the top surface detection conveying component drives the first clamping component 111 to convey the battery cell 100 to the unloading transfer mechanism 17, so that the top surface detection conveying mechanism 16 conveys two battery cells 100 at a time for detection, and the detection device 20 is arranged above the first clamping component 111 to perform top surface detection on the battery cell 100. In this embodiment, the top surface detection conveying component is a structure driven by a linear motor or a rotary motor and a screw nut assembly.

[0076] After the conveying device 10 conveys the battery cell 100 to the top surface detection conveying mechanism 16 and performs the top surface detection, all appearance detection of the battery cell 100 is completed. It should be noted that in this embodiment, when the conveying device 10 conveys the battery cell 100 for detection, a fixed beat mode is adopted, that is, during the detection, the conveying device 10 controls the battery cell 100 to stop moving so that it stays at the detection device 20. After the detection device 20 completes the appearance detection of the battery cell 100, the conveying device 10 continues to convey the battery cell 100. The fixed beat mode makes the detection device 20 detect the battery cell 100 more accurately and with higher detection precision.

[0077] like Figure 1 As shown, the material transfer mechanism 17 includes a first clamping assembly 111, a first material transfer drive assembly 171 and a second material transfer drive assembly 172. The first clamping assembly 111 is used to clamp the battery cell 100. The first material transfer drive assembly 171 is used to drive the first clamping assembly 111 to move in the up and down directions. The second material transfer drive assembly 172 is used to drive the first material transfer drive assembly 171 to move in the first direction. Specifically, the first material transfer drive assembly 171 drives the first clamping assembly 111 to move downward, thereby clamping the battery cell 100 on the top surface detection and conveying mechanism 16, and then the first material transfer drive assembly 171 drives the first clamping assembly 111 to move upward, and then the second material transfer drive assembly 172 drives the first material transfer drive assembly 171 to move in the first direction, thereby transporting the battery cell 100 to the material transfer device 40. In this embodiment, the first material transfer drive assembly 171 and the second material transfer drive assembly 172 are structures driven by a linear motor or a rotary motor and a screw nut assembly. In this embodiment, the material transfer mechanism 17 is provided with two first clamping components 111 , and one first clamping component 111 clamps one battery cell 100 , so that the material transfer mechanism 17 can clamp two battery cells 100 conveyed by the large-surface detection conveying mechanism 14 at one time.

[0078] like Figure 1 As shown, the unloading device 40 includes an unloading code scanning mechanism 45, which is used to scan the battery cell 100 to obtain the information of the battery cell 100, so as to cooperate with the loading code scanning mechanism to jointly determine the information of the battery cell 100 and the appearance inspection of the battery cell 100. Specifically, the unloading code scanning mechanism 45 is arranged at the starting end of the unloading transfer mechanism 17. After the unloading transfer mechanism 17 clamps the battery cell 100, the unloading code scanning mechanism 45 first obtains the information of the battery cell 100 and then transports the battery cell 100.

[0079] like Figure 1As shown, the unloading device 40 includes a main unloading channel 42, a defective product unloading channel 43 and a transfer mechanism 44. The main unloading channel 42 is used to receive the battery cells 100 transported by the conveying device 10, the defective product unloading channel 43 is used to transport the battery cells 100 that fail the appearance inspection, and the transfer mechanism 44 is used to transfer the battery cells 100 that fail the appearance inspection from the main unloading channel 42 to the defective product unloading channel 43. Specifically, in this embodiment, the main unloading channel 42 and the unqualified product unloading channel 43 are arranged along the first direction, and both of them convey the battery cell 100 along the second direction. The first unloading transfer drive component 171 drives the first clamping component 111 to move downward, thereby placing the battery cell 100 on the main unloading channel 42. If the unloading code scanning mechanism 45 confirms that the battery cell 100 is a qualified product, the main unloading channel 42 conveys the battery cell 100 along the second direction to the qualified product unloading position; if the unloading code scanning mechanism 45 confirms that the battery cell 100 is an unqualified product, the main unloading channel 42 conveys the battery cell 100 in the second direction in the opposite direction to the transfer mechanism 44, and the transfer mechanism 44 conveys the battery cell 100 to the unqualified product unloading channel 43, and the unqualified product unloading channel 43 conveys the battery cell 100 to the unqualified product unloading position. Thus, the unloading device 40 can realize the separation of qualified products and unqualified products, making the unloading more intelligent and more automated, thereby meeting the actual use requirements of the equipment. In addition, in this embodiment, the transfer mechanism 44 is a structure in which a linear motor drives a conveyor belt conveying mechanism to move along a first direction, and the conveyor belt conveying mechanism is used to carry the battery cell 100. In other embodiments, the transfer mechanism 44 can also be a structure in which a rotary motor drives a conveyor belt conveying mechanism to move along a first direction in conjunction with a screw nut assembly, and this embodiment does not limit this.

[0080] It should be noted that, in this embodiment, Figure 1 As shown, the main unloading channel 42 is provided with two channels, so as to cooperate with the two first clamping assemblies 111 provided by the unloading transfer mechanism 17 to convey two battery cells 100 at one time. The unqualified product unloading channel 43 is provided with three channels, so that the unqualified battery cells 100 can be divided into three categories according to the unqualified type, and the unqualified battery cells 100 can be conveyed separately according to the category to meet the actual use needs.

[0081] like Figure 5 and Figure 6As shown, the first clamping assembly 111 includes a clamping drive 1111 and a plurality of clamping members 1112, and the plurality of clamping members 1112 are arranged at the output end of the clamping drive 1111, and the clamping drive 1111 is used to drive the plurality of clamping members 1112 to approach each other so that the plurality of clamping members 1112 clamp the battery cell 100 together. The clamping method of using a clamping drive 1111 to drive the movement of the plurality of clamping members 1112 is lower in cost and the movement synchronization of the two clamping members 1112 is higher. Specifically, in the present embodiment, the first clamping assembly 111 is a pneumatic clamping jaw, the number of the clamping members 1112 is two, and the clamping drive 1111 is a cylinder, so that the structure arranged in this way is simpler and has lower cost. And the pneumatic clamping jaw also has a power-off self-locking function. When the device encounters a power-off during operation, the self-locking function can ensure that the battery cell 100 will not fall from the clamping jaw, thereby avoiding the risk of the battery cell 100 falling and damaging the battery cell 100.

[0082] like Figure 6 As shown, the clamping member 1112 is provided with a protective layer on the side in contact with the battery cell 100, and the protective layer can prevent the clamping member 1112 from clamping the battery cell 100. In this embodiment, the material of the protective layer is EPDM, which is a kind of rubber with moderate hardness and large friction, so it can ensure that the battery cell 100 is not damaged and prevent the battery cell 100 from slipping. In other embodiments, the protective layer can also be a material with good protective effect such as silica gel, and all other materials that can achieve the protective effect on the battery cell 100 are within the protection scope of this embodiment.

[0083] In addition, if Figure 5 and Figure 6 As shown, the first clamping assembly 111 also includes a guide rail and a slider. The guide rail extends along the movement direction of the clamping member 1112. The slider is connected to the clamping member 1112 and is slidably connected to the guide rail. Therefore, during the movement of the clamping member 1112, the guide rail and the slider can guide the movement of the clamping member 1112, thereby ensuring that the movement of the clamping member 1112 is not deflected, ensuring the clamping effect on the battery cell 100 and preventing the battery cell 100 from being clamped due to deflection.

[0084] like Figure 5 and Figure 6As shown, the first clamping assembly 111 also includes a first mounting member 1113, a second mounting member 1114, a third mounting member 1115 and an elastic member 1116. The second mounting member 1114 extends in the up-down direction. The first mounting member 1113 is connected to the upper end of the second mounting member 1114. The third mounting member 1115 is connected to the lower end of the second mounting member 1114 and is used to support the clamping drive member 1111. The elastic member 1116 extends in the up-down direction and is arranged between the first mounting member 1113 and the clamping drive member 1111. When the first clamping assembly 111 moves downward to place the battery, the bottom of the battery cell 100 will gradually be restricted by other structures and cannot continue to move downward. At this time, the clamping drive 1111 will move upward to avoid hard pressure and damage to the battery cell 100, and the elastic compression of the elastic member 1116 can control the speed at which the clamping drive 1111 drives the battery cell 100 to move upward, and can also avoid the clamping drive 1111 colliding with the first mounting member 1113 and damaging the clamping drive 1111. In the present embodiment, the elastic member 1116 is a spring, which has a simple structure, low cost and good elastic effect. In other embodiments, the elastic member 1116 can also be a simple and low-cost structure such as rubber or silicone. Other mechanisms that can achieve the elastic buffering function are all within the protection scope of the present embodiment. In addition, if Figure 5 and Figure 6 As shown, when the clamping drive member 1111 moves in the up and down directions, a guide rail and a slider may also be provided for guidance. The structure and principle are the same as those of the guidance when the clamping member 1112 moves, and will not be described in detail in this embodiment.

[0085] In addition, if Figure 5 and Figure 6 As shown, the first clamping assembly 111 also includes a limit member 1117, which is used to limit the extreme position of the upward movement of the clamping drive member 1111. In this embodiment, the limit member 1117 is arranged between the first mounting member 1113 and the clamping drive member 1111. When the clamping drive member 1111 moves upward, it will drive the limit member 1117 to move upward until the limit member 1117 abuts against the first mounting member 1113, and the clamping drive member 1111 will stop moving, thereby avoiding damage caused by collision between the clamping drive member 1111 and the first mounting member 1113.

[0086] It should be noted that, in this embodiment, the structure of the second clamping assembly 141 may be the same as that of the first clamping assembly 111 , or may be other structures, as long as the battery cell 100 can be clamped, and this embodiment does not limit this.

[0087] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A battery cell (100) appearance inspection device, characterized in that: include: A conveying device (10) for conveying a battery cell (100); A detection device (20) for detecting the appearance of the battery cell (100); A loading device (30) is used to transport the battery cell (100) to the conveying device (10), the loading device (30) comprising a plurality of loading conveying mechanisms (31) arranged along a loading conveying direction, and one of the loading conveying mechanisms (31) carries one of the battery cells (100); A material unloading device (40) for receiving the battery cell (100) transported by the transport device (10), the material unloading device (40) comprising a plurality of material unloading transport mechanisms (41) arranged along a material unloading transport direction, and one of the material unloading transport mechanisms (41) carries one of the battery cells (100); The conveying device (10) comprises a bottom surface and side surface detection conveying mechanism (11), an explosion-proof valve and pole detection conveying mechanism (12), a first conveying mechanism (13), a large surface detection conveying mechanism (14), a second conveying mechanism (15), a top surface detection conveying mechanism (16) and a material transfer mechanism (17) which are arranged in sequence from upstream to downstream; The detection device (20) is arranged at a corresponding position of the conveying device (10) to cooperate with the conveying device (10) to perform appearance detection on the battery cell (100).

2. The battery cell (100) appearance inspection device according to claim 1, characterized in that: The bottom and side surface detection and conveying mechanism (11) comprises: A first clamping assembly (111), used for clamping the battery core (100); A first bottom and side surface detection drive assembly (112) for driving the first clamping assembly (111) to move in an up-down direction; The second bottom and side surface detection drive assembly (113) is used to drive the first bottom and side surface detection drive assembly (112) to move along a first direction, wherein the first direction is perpendicular to the up-down direction.

3. The battery cell (100) appearance inspection device according to claim 1, characterized in that: The explosion-proof valve and pole detection and conveying mechanism (12) comprises: A plurality of first clamping components (111) for clamping the battery core (100); A first explosion-proof valve and pole detection drive assembly (121), used for driving the plurality of first clamping assemblies (111) to move along a first direction; The second explosion-proof valve and pole detection drive assembly (122) is used to drive the first clamping assembly (111) to move along a first direction to change the distance between two adjacent first clamping assemblies (111).

4. The battery cell (100) appearance inspection device according to claim 1, characterized in that: The first transport mechanism (13) comprises: A first clamping assembly (111), used for clamping the battery core (100); A first transport driving assembly (131) for driving the first clamping assembly (111) to move in an up-down direction; The second transport driving assembly (132) is used to drive the first transport driving assembly (131) to move along a first direction, wherein the first direction is perpendicular to the up-down direction.

5. The battery cell (100) appearance inspection device according to claim 1, characterized in that: The large surface detection and conveying mechanism (14) comprises: A plurality of second clamping components (141) for clamping the battery core (100); One or more first large surface detection drive components (142), used for driving the second clamping component (141) to move in an up-down direction; A plurality of second large-surface detection drive assemblies (143) are used to drive the first large-surface detection drive assembly (142) or the second clamping assembly (141) to move along a second direction, wherein the second direction is perpendicular to the up-down direction.

6. The battery cell (100) appearance inspection device according to claim 5, characterized in that: The large surface detection and conveying mechanism (14) further comprises: A plurality of positioning components (144), wherein the positioning components (144) are arranged opposite to each other on both sides of the second large surface detection drive component (143) along a first direction, wherein the positioning components (144) include a positioning member (1441) and a positioning drive member (1442), wherein the positioning drive member (1442) is used to drive the positioning member (1441) to move along the first direction, so that the positioning members (1441) arranged opposite to each other along the first direction jointly abut against and push the battery cell (100), and the first direction, the second direction, and the up-down direction are perpendicular to each other.

7. The battery cell (100) appearance inspection device according to any one of claims 1 to 6, characterized in that: The unloading device (40) comprises: A main unloading channel (42) for receiving the battery cells (100) transported by the transport device (10); A defective product discharge channel (43) for conveying the battery cells (100) that have failed the appearance inspection; The transfer mechanism (44) is used to transfer the battery cells (100) that fail the appearance inspection from the main material discharge channel (42) to the unqualified product discharge channel (43).

8. The battery cell (100) appearance inspection device according to any one of claims 1 to 6, characterized in that: The conveying device (10) comprises: A first clamping assembly (111) comprises a clamping drive member (1111) and a plurality of clamping members (1112), wherein the plurality of clamping members (1112) are arranged at an output end of the clamping drive member (1111), and the clamping drive member (1111) is used to drive the plurality of clamping members (1112) to approach each other, so that the plurality of clamping members (1112) clamp the battery cell (100) together.

9. The battery cell (100) appearance inspection device according to claim 8, characterized in that: The first clamping assembly (111) further comprises: A first mounting member (1113); A second mounting member (1114) extends in an up-down direction, and the first mounting member (1113) is connected to an upper end of the second mounting member (1114); A third mounting member (1115), connected to the lower end of the second mounting member (1114) and used to support the clamping driving member (1111); The elastic member (1116) extends in the up-down direction and is arranged between the first mounting member (1113) and the clamping driving member (1111).

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