Bare cell appearance detection equipment

Abstract

The utility model belongs to the technical field of detection equipment, and particularly relates to naked battery cell appearance detection equipment which comprises a rack, a conveying device and an optical detection device, the optical detection device comprises a plurality of visual detection parts and a plurality of prisms, the visual detection parts are arranged on the side, above and / or below the conveying path of the conveying device, and the prisms are used for turning the imaging path of the visual detection parts, so that the visual detection parts can perform image acquisition on the to-be-acquired area of the naked battery cell. As the space occupied by the prism is far smaller than the space occupied by the visual detection part, the visual detection part can be transferred to other directions with sufficient space under the condition that the space in a certain direction is insufficient, and compared with the visual detection part which is arranged perpendicular to the to-be-collected area, the visual detection part can be transferred to the to-be-collected area; the imaging path of the visual detection part is turned by means of the prism, so that the setting position of the visual detection part can be adjusted, and the whole detection equipment can be suitable for the working environment with insufficient space.

Description

TECHNICAL FIELD

[0001] The utility model relates to detection equipment technical field especially relates to a naked electric core appearance detection equipment. BACKGROUND

[0002] Lithium battery as the core energy storage device of electric vehicle, lithium ion battery plays a vital role in its development. In the process of lithium ion battery production, the appearance detection of bare electric core is the key detection process, and it is a process that must be detected. It has a great influence on the safety, reliability and energy storage performance of lithium battery pack. The appearance detection of bare electric core mainly includes detection of diaphragm foreign matter, dirt, wrinkles, damage and sand eye. At present, the appearance detection equipment is used to detect the bare electric core. Specifically, the appearance detection equipment includes a plurality of visual detection parts, and the plurality of visual detection parts are respectively opposite to different sides of the bare electric core, so as to simultaneously detect the different sides of the bare electric core. Compared with manual detection of the appearance of the bare electric core, the detection accuracy and efficiency are significantly improved.

[0003] However, when arranging visual detection parts in different directions, the camera in the visual detection part needs to be arranged vertically to the corresponding side, so that enough space needs to be reserved on the side of the bare electric core, which may cause the appearance detection equipment to be difficult to arrange in the working environment with insufficient space in the height direction, length direction or width direction.

[0004] Therefore, the above problems need to be solved. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a kind of bare electric core appearance detection equipment, to make the detection equipment can be applicable to the working environment with insufficient space.

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

[0007] A kind of bare electric core appearance detection equipment, it includes rack, conveying device and optical detection device;

[0008] The conveying device is arranged on the rack, for carrying and conveying bare electric core;

[0009] The optical detection device includes several visual detection parts and several prisms, wherein the visual detection part is arranged in the side, upper and / or lower of the conveying path of the conveying device, and the prism is used to turn the imaging path of the visual detection part, so that the visual detection part can collect the image of the area to be collected of the bare electric core.

[0010] As preferred, the visual detection unit comprises a detection support and a plurality of detection cameras, the plurality of detection cameras are arranged on the detection support, and some of the detection cameras are opposite to the region to be collected of the bare battery cell, and the rest of the detection cameras are opposite to the prism.

[0011] As preferred, the optical detection device further comprises a moving unit arranged on the detection support, the moving unit has a plurality of moving ends corresponding to the plurality of detection cameras, and any of the moving ends is configured to drive the detection camera to move in the horizontal direction and / or in the vertical direction.

[0012] As preferred, the distance between the detection support and the conveying path is adjustable.

[0013] As preferred, the optical detection device further comprises a plurality of adjusting units corresponding to the plurality of prisms, and the adjusting units are used to adjust the posture of the prisms.

[0014] As preferred, the adjusting unit comprises a screw module and a reflecting support, the screw module is used to drive the reflecting support to approach or move away from the conveying path, the prism is rotationally arranged on the reflecting support and can stop at any angle.

[0015] As preferred, the conveying device comprises a conveying belt, a plurality of bearing units and a supporting unit, the plurality of bearing units are arranged on the conveying belt at intervals, any of the bearing units is used to bear the bare battery cell, and the supporting unit is used to arrange the bearing layer of the conveying belt in parallel with the idle layer of the conveying belt.

[0016] As preferred, the supporting unit comprises:

[0017] a supporting block arranged between the bearing layer and the idle layer, and the supporting block can abut against the bearing layer;

[0018] a plurality of supporting mechanisms arranged between adjacent two bearing units, so as to support the idle layer when the bearing units are in the idle layer.

[0019] As preferred, the supporting mechanism comprises a plurality of supporting rods and a plurality of supporting wheels, the plurality of supporting wheels are arranged corresponding to the plurality of supporting rods, and the supporting wheels are at one end of the supporting rods away from the conveying belt.

[0020] As preferred, along the conveying path, the appearance detection equipment of the bare battery cell further comprises a scanning device arranged on the upstream side of the optical detection device, and the scanning device is used to identify the bare battery cell.

[0021] The beneficial effects of the utility model are as follows:

[0022] The appearance detection equipment for the bare battery cell can transfer the visual detection part to other space sufficient directions in the case of insufficient space in a certain direction, compared with the vertical setting of the visual detection part and the region to be collected, and the imaging path of the visual detection part is turned over by the aid of the prism, so that the setting position of the visual detection part can be adjusted, so that the whole detection equipment can be suitable for the operation environment with insufficient space. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a structural schematic diagram of a bare battery cell in the embodiment of the utility model;

[0024] Figure 2 is a structural schematic diagram of an appearance detection equipment for the bare battery cell in the embodiment of the utility model;

[0025] Figure 3 is one of structural schematic diagrams of an optical detection device in the embodiment of the utility model;

[0026] Figure 4 is the second structural schematic diagram of the optical detection device in the embodiment of the utility model;

[0027] Figure 5 is the third structural schematic diagram of the optical detection device in the embodiment of the utility model;

[0028] Figure 6 is a structural schematic diagram of a conveying device in the embodiment of the utility model.

[0029] In the drawing:

[0030] 100, bare battery cell; 110, first side; 120, second side; 130, third side;

[0031] 1, rack;

[0032] 2, conveying device; 21, conveying belt; 22, bearing part; 23, support part; 231, support block; 232, support mechanism; 2321, support rod; 2322, support wheel;

[0033] 3, optical detection device; 31, visual detection part; 311, detection support; 312, detection camera; 32, prism; 33, moving part; 34, adjusting part; 341, screw module; 342, reflection support;

[0034] 4, scanning device. DETAILED DESCRIPTION

[0035] The utility model will be described in further detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are merely intended to explain the utility model and not to limit the utility model. In addition, it should be noted that only the parts related to the utility model are shown in the drawings for ease of description, not all the structures.

[0036] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0037] In the utility model, unless otherwise explicitly specified and limited, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0038] In the description of the embodiment, the terms "up", "down", "left", "right" and other orientation or position relationship are based on the orientation or position relationship shown in the drawings, which is only for the convenience of description and simplification of operation, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, therefore it cannot be understood as a limitation of the utility model. In addition, the terms "first" and "second" are only used to distinguish in description and have no special meaning.

[0039] Please refer to Figures 1 to 6 , the embodiment proposes a kind of appearance detection equipment of bare electric core, including rack 1, conveying device 2 and optical detection device 3;Conveying device 2 is set on rack 1, for carrying and conveying bare electric core 100;Optical detection device 3 includes several visual detection parts 31 and several prisms 32, wherein, visual detection part 31 is arranged in the side of the conveying path of conveying device 2, above and / or below, prism 32 is used to turn the imaging path of visual detection part 31, to enable visual detection part 31 to carry out image acquisition to the area to be collected of bare electric core 100.

[0040] It can be understood that, since the space occupied by the prism 32 is much smaller than the space occupied by the visual detection unit 31, the appearance detection device can transfer the visual detection unit 31 to other space sufficient directions in the case of insufficient space in a certain direction. Compared with the visual detection unit 31 being perpendicular to the to-be-collected region, the imaging path of the visual detection unit 31 is turned by means of the prism 32, so that the setting position of the visual detection unit 31 can be adjusted, so that the whole detection device can be suitable for the working environment with insufficient space.

[0041] The visual detection unit 31 includes a detection support 311 and a plurality of detection cameras 312, the plurality of detection cameras 312 are arranged on the detection support 311, part of the detection cameras 312 are opposite to the to-be-collected region of the bare battery cell 100, and the rest of the detection cameras 312 can be opposite to the prism 32. It can be understood that, when arranging the detection cameras 312, when the arrangement space in the direction opposite to the collection region is sufficient, the detection cameras 312 are opposite to the collection region, and when the arrangement space in the direction opposite to the collection region is insufficient, the detection cameras 312 are arranged in the space sufficient direction, and the imaging path of the detection cameras 312 is turned by means of the prism 32. In this way, the device in one direction can be transferred to the space in another direction, so that the space in the corresponding direction can be saved.

[0042] Exemplarily, a square bare battery cell 100 is taken as an example for illustration, the square bare battery cell 100 has six sides, which are a first side 110, a second side 120, a third side 130, a fourth side, a fifth side and a sixth side. The first side 110 and the fourth side are arranged opposite to each other along a first direction (an extension direction of the conveying path), the second side 120 and the fifth side are arranged opposite to each other along a second direction (a width direction of the conveying path), and the third side 130 and the sixth side are arranged opposite to each other along a third direction (a height direction). When the bare battery cell 100 is conveyed along the first direction, in order to ensure the comprehensiveness of the detection of the six sides of the bare battery cell 100, the number of the visual detection units 31 is four, which are respectively named as a first visual detection unit 31, a second visual detection unit 31, a third visual detection unit 31 and a fourth visual detection unit 31. The structures of the first visual detection unit 31 and the second visual detection unit 31 are consistent, and they are respectively located on the left and right sides of the bare battery cell 100 along the second direction. The structures of the third visual detection unit 31 and the fourth visual detection unit 31 are consistent, and they are respectively located on the left and right sides of the bare battery cell 100 along the second direction.

[0043] Specifically, the first visual detection unit 31 comprises a first detection support 311 and three first detection cameras 312 arranged on the first detection support 311, the three first detection cameras 312 are respectively named as a first camera, a second camera and a third camera, wherein the second camera is opposite to the fifth side, the first camera collects the image of the first side 110 through the prism 32, and the third camera collects the image of the fourth side through the prism 32. In this way, the space for arranging the support for mounting the first camera and the support for mounting the third camera can be saved, thereby the space of the appearance detection equipment in the first direction and the third direction can be saved.

[0044] Further, the third visual detection unit 31 comprises the first detection support 311 and two second detection cameras 312 arranged on the second detection support 311, the two second detection cameras 312 are respectively named as a fourth camera and a fifth camera, wherein the fourth camera is opposite to the second side 120, and the fifth camera collects the image of the sixth side through the prism 32. In this way, the space for arranging the support for mounting the fifth camera can be saved, thereby the space of the appearance detection equipment in the third direction can be saved.

[0045] It should be noted that the detection principles of the first detection camera 312 and the second detection camera 312 are consistent, and hereinafter the first detection camera 312 is taken as an example for illustration. The visual detection unit 31 further comprises an information processing module, the first detection camera 312 is electrically connected with the information processing module, the information processing module stores qualified product information, the first detection camera 312 can take a photo of the to-be-collected area on the bare battery cell 100 and transmit the information to the information processing module, and the information processing module can compare the photo with the qualified product information, so as to determine whether the bare battery cell 100 is a qualified product.

[0046] Further, the optical detection device 3 further comprises a moving unit 33, the moving unit 33 is arranged on the detection support 311, the moving unit 33 has a plurality of moving ends, the plurality of moving ends are arranged one by one corresponding to the plurality of detection cameras 312, and any moving end is configured to drive the detection camera 312 to move along the horizontal direction and / or along the vertical direction. It can be understood that the position of the detection camera 312 can be adjusted under the action of the moving unit 33, so as to obtain the image information of different to-be-collected areas according to the actual detection requirement, thereby the applicability of the detection device can be further improved.

[0047] Preferably, the moving unit 33 is a linear motion servo module, and the linear motion servo module has moving tracks arranged in different directions.

[0048] Further, the distance between the detection support 311 and the conveying path is adjustable. It can be understood that a guide rail sliding block structure is arranged between the detection support 311 and the ground or between the detection support 311 and the rack 1, and the distance between the visual detection part 31 and the bare battery cell 100 can be adjusted according to the size of the model of the bare battery cell 100, so as to ensure the detection quality of the bare battery cell 100.

[0049] In the embodiment, the optical detection device 3 further comprises a plurality of adjusting parts 34, the plurality of adjusting parts 34 are arranged correspondingly with the plurality of prisms 32, and the adjusting part 34 is used for adjusting the posture of the prism 32. It can be understood that for different models of bare battery cells 100, the position of the prism 32 can be adjusted under the action of the adjusting part 34, so as to ensure the comprehensiveness of the image acquisition of the visual detection part 31, thereby ensuring the detection quality of the bare battery cell 100.

[0050] Specifically, the adjusting part 34 comprises a lead screw module 341 and a reflection support 342, the lead screw module 341 is used for driving the reflection support 342 to approach or move away from the conveying path, the prism 32 is rotationally arranged on the reflection support 342 and can stop at any angle. It can be understood that the position of the reflection support 342 can be adjusted by the lead screw module 341, and a gap can be formed during the movement of the bare battery cell 100, so as to avoid interference between the bare battery cell 100 and the prism 32 during the movement of the bare battery cell 100, thereby improving the safety performance, and the comprehensiveness of the image acquisition of the visual detection part 31 can be ensured by adjusting the position and angle of the prism 32, thereby ensuring the detection quality of the bare battery cell 100.

[0051] Preferably, a rotating driving member such as a servo motor is arranged on the reflection support 342, and the prism 32 is arranged on the rotating end of the servo motor, and the angle of the prism 32 can be adjusted under the action of the servo motor.

[0052] In this embodiment, the conveying device 2 comprises a conveying belt 21, a plurality of bearing parts 22 and a supporting part 23. The plurality of bearing parts 22 are arranged at intervals on the conveying belt 21, and any bearing part 22 is used to bear the bare battery cell 100. The supporting part 23 is used to arrange the bearing layer of the conveying belt 21 and the empty bearing layer of the conveying belt 21 in parallel. It can be understood that the conveying belt 21 is divided into two layers in the transportation process, wherein the upper layer is the bearing layer, that is, the bearing part 22 on the bearing layer bears the bare battery cell 100 to be detected, and the lower layer is the empty bearing layer, that is, the bearing part 22 on the empty bearing layer does not bear the bare battery cell 100. Specifically, the conveying belt 21 can drive the bearing part 22 to move along the conveying path during operation. Any bearing part 22 sequentially passes through the feeding station, the detection station and the discharging station during movement. The bearing part 22 is on the upper layer of the conveying belt 21 and is transferred to the feeding station. The external feeding structure can place the bare battery cell 100 to be detected on the bearing part 22. Then it is transferred to the detection station. The visual detection part 31 can detect the bare battery cell 100. After detection, it is transferred to the discharging station and then discharged under the action of the discharging structure. After discharging, the bearing part 22 is transferred to the lower layer of the conveying belt 21. During this process, the supporting part 23 can apply a supporting force to the conveying belt 21. The direction of the supporting force is opposite to the direction of the gravity of the bearing part 22, so as to avoid the sagging of the conveying belt 21 during operation, thereby ensuring the precision of the bare battery cell 100 moving to the detection station and ensuring the detection quality.

[0053] Preferably, the bearing part 22 is a clamping jaw. The clamping jaw can clamp different models of bare battery cells 100 and ensure that the bare battery cell 100 maintains a predetermined posture during movement.

[0054] Further, the supporting part 23 comprises a supporting block 231 and a plurality of supporting mechanisms 232. The supporting block 231 is arranged between the bearing layer and the empty bearing layer and can abut against the bearing layer. The plurality of supporting mechanisms 232 are respectively arranged between adjacent two bearing parts 22 to support the empty bearing layer when the bearing part 22 is on the empty bearing layer. It can be understood that the supporting block 231 is fixed on the rack 1 and can abut against the bearing layer, so as to avoid the sagging of the bearing layer during operation. When the supporting mechanism 232 is on the empty bearing layer, the supporting mechanism 232 can support the empty bearing layer, so as to avoid the sagging of the empty bearing layer. The empty bearing layer and the bearing layer can be kept parallel under the action of the supporting block 231 and the supporting mechanism 232, thereby ensuring the precision of the bare battery cell 100 moving to the detection station.

[0055] Exemplarily, the support mechanism 232 comprises a plurality of support rods 2321 and a plurality of support wheels 2322, the plurality of support wheels 2322 are arranged in one-to-one correspondence with the plurality of support rods 2321, and the support wheel 2322 is located at one end of the corresponding support rod 2321 away from the conveying belt 21. It can be understood that when the support rod 2321 is in the empty layer, the support wheel 2322 can abut against the ground or the rack 1 to apply a support force to the empty layer.

[0056] Preferably, the rack 1 is provided with a guide rail, the guide rail can abut against the support wheel 2322, and the guide rail can limit both sides of the support wheel 2322 in the second direction, so as to avoid the deviation of the support wheel 2322 during movement, so as to further ensure the precision of the bare battery cell 100 when moving to the detection station.

[0057] In the embodiment, along the conveying path, the bare battery cell appearance detection device further comprises a scanning device 4 arranged on the upstream side of the optical detection device 3, and the scanning device 4 is used for identifying the bare battery cell 100. It can be understood that the scanning device 4 is located on the downstream side of the loading station and the upstream side of the detection station, and after the carrying part 22 receives the bare battery cell 100, the scanning device 4 can scan the product information of the bare battery cell 100, and then transmit the product information to the visual detection part 31, so as to facilitate the visual detection part 31 to detect it. It should be noted that the scanning device 4 is a code scanning structure in the prior art, which will not be described here.

[0058] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not the limitation of the embodiments of the utility model. For ordinary skilled in the art, various obvious changes, re-adjustment and replacement can be made without departing from the protection scope of the utility model. Here, it is not necessary and impossible to enumerate all the embodiments. Any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.

Claims

1. A bare cell appearance inspection apparatus characterized by comprising: The machine frame (1), the conveying device (2) and the optical detection device (3) are provided. The conveying device (2) is arranged on the machine frame (1) and used for carrying and conveying the bare battery cell (100). The optical detection device (3) comprises a plurality of visual detection units (31) and a plurality of prisms (32). The visual detection units (31) are arranged on the side, above and / or below the conveying path of the conveying device (2). The prisms (32) are used for turning the imaging path of the visual detection units (31) so that the visual detection units (31) can image the area to be collected of the bare battery cell (100).

2. The bare cell appearance inspection apparatus according to claim 1, characterized by, The visual detection unit (31) comprises a detection support (311) and a plurality of detection cameras (312). The detection cameras (312) are arranged on the detection support (311). Some of the detection cameras (312) are opposite to the area to be collected of the bare battery cell (100), and the rest of the detection cameras (312) are opposite to the prisms (32).

3. The bare cell appearance inspection apparatus according to claim 2, characterized by, The optical detection device (3) further comprises a moving unit (33) arranged on the detection support (311). The moving unit (33) has a plurality of moving ends corresponding to the detection cameras (312). Any of the moving ends is configured to drive the detection cameras (312) to move in the horizontal direction and / or in the vertical direction.

4. The bare cell appearance inspection apparatus according to claim 2, characterized by, The distance between the detection support (311) and the conveying path is adjustable.

5. The bare cell appearance inspection apparatus of claim 1, wherein The optical detection device (3) further comprises a plurality of adjusting units (34) corresponding to the prisms (32). The adjusting units (34) are used for adjusting the posture of the prisms (32).

6. The bare cell appearance inspection apparatus according to claim 5, characterized by, The adjusting unit (34) comprises a screw module (341) and a reflecting support (342). The screw module (341) is used for driving the reflecting support (342) to move towards or away from the conveying path. The prism (32) is rotatably arranged on the reflecting support (342) and can stop at any angle.

7. The bare cell appearance inspection apparatus of claim 1, wherein The conveying device (2) comprises a conveying belt (21), a plurality of bearing units (22) and a supporting unit (23). The bearing units (22) are arranged on the conveying belt (21) at intervals. Any of the bearing units (22) is used for carrying the bare battery cell (100). The supporting unit (23) is used for arranging the bearing layer of the conveying belt (21) in parallel with the idle layer of the conveying belt (21).

8. The bare cell appearance inspection apparatus according to claim 7, characterized by, The supporting unit (23) comprises: a supporting block (231) arranged between the bearing layer and the idle layer and capable of abutting against the bearing layer; and a plurality of supporting mechanisms (232) respectively arranged between adjacent two bearing units (22) to support the idle layer when the bearing units (22) are in the idle layer.

9. The bare cell appearance inspection apparatus according to claim 8, characterized by, The support mechanism (232) comprises a plurality of support rods (2321) and a plurality of support wheels (2322), the plurality of support wheels (2322) are arranged one-to-one corresponding to the plurality of support rods (2321), and the support wheel (2322) is located at one end of the corresponding support rod (2321) away from the conveying belt (21).

10. The bare cell appearance inspection apparatus of claim 1, wherein Along the conveying path, the bare cell appearance detection equipment further comprises a scanning device (4) arranged on the upstream side of the optical detection device (3), and the scanning device (4) is used for identifying the bare cell (100).

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