CN113466243A - Square lithium battery large-surface appearance defect detection system and application method thereof - Google Patents
Square lithium battery large-surface appearance defect detection system and application method thereof Download PDFInfo
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- CN113466243A CN113466243A CN202110724880.7A CN202110724880A CN113466243A CN 113466243 A CN113466243 A CN 113466243A CN 202110724880 A CN202110724880 A CN 202110724880A CN 113466243 A CN113466243 A CN 113466243A
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- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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Abstract
A square lithium battery large-face appearance defect detection system comprises: the large-area detection mechanism comprises an X-direction driving device, a linear sliding device and a camera scanning assembly and is used for detecting the large area of the square lithium battery; the battery cell turnover mechanism is arranged between the large-area detection mechanism and the jacking transplanting mechanism, comprises a low-speed rotating cylinder, a rotating shaft and a bearing with a seat, and is used for driving the battery positioning rotating mechanism to overturn; the battery positioning rotating mechanism is arranged on the battery cell overturning mechanism, comprises a bottom rotating device and a top clamping device and is used for clamping the square lithium battery; the jacking transplanting mechanism is arranged on the equipment installation surface, is distributed on two sides of the battery cell turnover mechanism together with the large-area detection mechanism, comprises a jacking driving device, a jacking buffer device and a suction tool, and is used for lifting the position of the square lithium battery to meet the battery cell height state of the subsequent process; the invention also includes methods of use. The invention has the beneficial effects that: the appearance detection precision is improved, and the problems of manual misjudgment and low working efficiency are avoided.
Description
Technical Field
The invention relates to a square lithium battery large-surface appearance defect detection system and an application method thereof, belonging to the technical field of lithium battery detection.
Background
At present, new energy automobiles are vigorously advocated in China, the lithium battery industry is also greatly developed, and under the condition, the requirements for appearance detection of finished lithium batteries are more and more strict. The lithium battery is divided into a soft package, a cylinder and a square according to the shape, and the square lithium battery is an aluminum shell. In the production process, the aluminum shell is easy to be damaged and scratched, and after the aluminum shell is delivered from a warehouse and before a film coating process, the appearance defects of the square lithium battery need to be detected with high precision. Rely on artifical the detection under the traditional operation, there are the risk such as the electric core causes damage to inefficiency, false retrieval, hourglass detection, mistake touch. Therefore, it is urgently needed to improve the automation and mechanization level of the large-area appearance detection of the battery cell.
Disclosure of Invention
In order to solve the problem of large-area appearance defect detection, the invention provides a large-area appearance defect detection device for a square lithium battery, which has the advantages of simple structure, high defect detection precision, strong compatibility and the like, and can be directly and quickly butted with the existing production line, so that the working efficiency of the production line is improved.
The invention relates to a system for detecting appearance defects of a large surface of a square lithium battery, which is characterized by comprising the following components:
the large-area detection mechanism comprises an X-direction driving device, a linear sliding device and a camera scanning assembly, wherein the linear sliding device comprises an X-direction guide part and an X-direction sliding part, the X-direction guide part is horizontally supported on the equipment mounting surface, and the axial direction of the X-direction guide part is taken as the X direction; the X-direction driving device is arranged at the end part of the X-direction guide part, and the power output end of the X-direction driving device is connected with the power input end of the X-direction guide part; the X-direction sliding part is arranged on the X-direction guide part and is driven by the driving device to move linearly along the axial direction of the X-direction guide part; the camera scanning assembly is arranged on the sliding part and used for carrying out large-area detection on the square lithium battery;
the battery cell turnover mechanism is arranged between the large-area detection mechanism and the jacking transplanting mechanism and comprises a low-speed rotating cylinder, a rotating shaft and a bearing with a seat, the rotating shaft is rotatably arranged on an equipment mounting surface beside the large-area detection mechanism through the bearing with the seat, and the rotating shaft is arranged along the X direction; the power output end of the low-speed rotating cylinder is connected with one end of the rotating shaft through a coupler and is used for driving the battery positioning rotating mechanism to overturn;
the battery positioning rotating mechanism is arranged on the battery cell overturning mechanism and comprises a bottom rotating device and a top clamping device, and the bottom rotating device is fixedly arranged on the rotating shaft and is used for driving the top clamping device to rotate circumferentially around a vertical central shaft; the top clamping device is arranged on a rotating part of the bottom rotating device and comprises a clamping driving part and a large-area clamping jaw assembly, the clamping driving part is arranged on the bottom rotating device, and the clamping control end of the clamping driving part is provided with the large-area clamping jaw assembly and is used for clamping the square lithium battery;
the jacking transplanting mechanism is arranged on an equipment mounting surface, is respectively arranged at two sides of the electric core turnover mechanism together with the large-surface detection mechanism, and comprises a jacking driving device, a jacking buffer device and a suction tool, wherein the bottom of the jacking driving device is arranged on the equipment mounting surface, the lifting end of the jacking driving device vertically stretches, and the lifting end of the jacking driving device is connected with the bottom of the jacking buffer device and is used for driving the jacking buffer device to lift along the vertical direction; and the top of the jacking buffer device is provided with a suction tool for adsorbing and fixing the square lithium battery.
Further, the X-direction driving device is a servo motor, the linear sliding device comprises a linear module serving as an X-direction guiding part, a sliding plate serving as an X-direction sliding part and a first drag chain, and the linear module is supported on an equipment installation surface; the power output end of the servo motor is connected with the power input end of the linear module; the sliding plate is arranged above the linear module and is connected with the X-direction linear sliding piece of the linear module; the first drag chain is laid on one side of the straight line module along the X direction and is parallel and opposite to the straight line module, and one end of the first drag chain is connected with the sliding plate.
Further, the camera scanning component comprises a 2.5D camera and a camera light source, the 2.5D camera and the camera light source are both installed on the sliding plate, and the camera of the 2.5D camera is aligned with the battery positioning rotating mechanism and used for carrying out large-area detection on the square lithium battery.
Further, the bottom rotating device comprises a first air cylinder mounting plate and a rotating air cylinder, and the first air cylinder mounting plate is mounted on the rotating shaft; the rotary cylinder is arranged on the first cylinder mounting plate; and the lifting end of the rotary cylinder is connected with the bottom of the top clamping device.
Further, the clamping driving part comprises a second air cylinder mounting plate and a clamping air cylinder; the large-surface clamping jaw assembly comprises a first thickness clamping jaw assembly, a second thickness clamping jaw assembly, a first supporting piece, a second supporting piece and a battery cell insulating carrying platform, wherein the first supporting piece and the second supporting piece are positioned at the same horizontal height, and the inner end of the first supporting piece and the inner end of the second supporting piece are respectively connected with the clamping end of the clamping cylinder; the outer end of the first supporting piece and the outer end of the second supporting piece are respectively provided with the first thickness clamping jaw assembly and the second thickness clamping jaw assembly, and the first thickness clamping jaw assembly and the second thickness clamping jaw assembly are kept right opposite to each other to form a clamping jaw for clamping a square lithium battery; a photoelectric sensor is arranged on the second thickness clamping jaw assembly; the battery cell insulating rack is arranged above the cylinder body of the clamping cylinder, and a gap for the first supporting piece and the second supporting piece to pass through is reserved between the battery cell insulating rack and the cylinder body of the clamping cylinder.
Furthermore, the jacking driving device comprises a jacking cylinder, a jacking guide shaft, a first linear bearing, a limiting fixing ring, a jacking fixed plate and an upright post, wherein the jacking cylinder is suspended at the bottom of the jacking fixed plate, and the jacking end of the jacking cylinder penetrates through the jacking fixed plate and then is connected with the jacking buffer device for driving the jacking buffer device to lift; the first linear bearing is embedded on the jacking fixing plate; the jacking guide shaft is arranged on the first linear bearing in a penetrating manner and is in sliding fit with the first linear bearing; the lower end part of the jacking guide shaft is sleeved with a limiting fixing ring for preventing the jacking guide shaft from coming off from the first linear bearing; the upper end of the jacking guide shaft is connected with the jacking buffer device; the upright post is vertically arranged on the jacking fixing plate.
Further, the jacking buffer device comprises a jacking plate, a second linear bearing, a buffer guide shaft, a second linear bearing and a spring buffer device, wherein the jacking plate is fixedly connected with the upper end of the jacking guide shaft and keeps the jacking plate parallel to the jacking fixed plate; the second linear bearing is embedded on the jacking plate; the buffer guide shaft is arranged in the second linear bearing in a penetrating manner and is in sliding fit with the second linear bearing; the bottom end of the buffering guide shaft is fixedly connected with the jacking fixing plate, and the upper part of the buffering guide shaft is fixedly connected with the suction tool through the spring buffering device.
The application method of the square lithium battery large-surface appearance defect detection system comprises the following steps:
s1, clamping and positioning the fed square lithium battery by the battery positioning and rotating assembly;
s2, after the square lithium battery is positioned, the 2.5D camera moves in the X-axis direction under the action of the linear module, and then the 2.5D camera takes pictures and scans the large-area features of the square lithium battery;
s3, after the code scanning is finished, the square lithium battery rotates for 180 degrees under the action of the battery positioning rotating assembly, then the 2.5D camera moves in the X-axis direction under the action of the linear module, and the other large surface of the square lithium battery is photographed and scanned;
s4, after the code scanning is finished, the rotating shaft is driven under the action of the low-speed rotating cylinder so as to drive the square lithium battery on the battery positioning rotating assembly to be placed on the jacking transplanting assembly from the standing state to the lying state;
spring buffer can avoid the excessive pressure destruction of electricity core placement process effectively in the subassembly is transplanted in the S5 jacking, places the square electric core of square lithium cell in place at electric core tilting mechanism back low-speed revolving cylinder action, turns over electric core tilting mechanism back to original state, thereby the electric core high state that satisfies the follow-up procedure is raised to the electric core position that the jacking cylinder action was lain.
The invention has the beneficial effects that: the appearance detection device for the square aluminum-shell battery adopts a camera scanning mode, a 2.5D camera is used for detecting and scanning a large surface, and a camera detection assembly, a battery positioning rotating assembly, a turnover assembly and a jacking transplanting assembly are used for completing the automatic operation of appearance scanning of the square aluminum-shell battery; the camera that the scanning was used adopts 2.5D to sweep the camera, improves the outward appearance and detects the precision, avoids manual operation's erroneous judgement and work efficiency low problem.
Drawings
FIG. 1 is a schematic diagram of a large-area appearance inspection apparatus for a square lithium battery according to the present invention;
fig. 2 is a structural diagram of a large-area detection mechanism and a cell-overturning mechanism of the present invention;
FIG. 3 is a block diagram of the battery positioning rotation mechanism of the present invention;
fig. 4 is a structural view of the lifting transplanting mechanism of the invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
With reference to the accompanying drawings:
embodiment 1 a system for detecting appearance defects of a large surface of a square lithium battery according to the present invention includes:
the large-area detection mechanism 100 comprises an X-direction driving device 110, a linear sliding device 120 and a camera scanning assembly 130, wherein the linear sliding device 120 comprises an X-direction guide part and an X-direction sliding part, the X-direction guide part is horizontally supported on an equipment mounting surface, and the axial direction of the X-direction guide part is taken as the X direction; the X-direction driving device 110 is arranged at the end part of the X-direction guiding part, and the power output end of the X-direction driving device is connected with the power input end of the X-direction guiding part; the X-direction sliding part is arranged on the X-direction guide part and is driven by the driving device to move linearly along the axial direction of the X-direction guide part; the camera scanning component 130 is mounted on the X-direction sliding part and is used for performing large-area detection on the square lithium battery;
the battery cell overturning mechanism 200 is arranged between the large-area detection mechanism 100 and the jacking transplanting mechanism 400, is parallel to and opposite to the large-area detection mechanism 100, and comprises a low-speed rotating cylinder 210, a rotating shaft 220 and a bearing with a seat 230, wherein the rotating shaft 220 is rotatably arranged on an equipment mounting surface beside the large-area detection mechanism through the bearing with the seat 230, and the rotating shaft 220 is arranged along the X direction; the power output end of the low-speed rotating cylinder 210 is connected with one end of the rotating shaft 220 through a coupler 240 and is used for driving the battery positioning rotating mechanism 300 to overturn;
the battery positioning and rotating mechanisms 300 are two sets, are sequentially arranged on the battery cell overturning mechanism 200 along the X direction, and comprise a bottom rotating device 310 and a top clamping device 320, wherein the bottom rotating device 310 is fixedly installed on the rotating shaft 220 and is used for driving the top clamping device to rotate 180 degrees around the circumferential direction of a vertical central shaft; the top clamping device 320 is mounted on the rotating part of the bottom rotating device 310 and comprises a clamping driving part and a large-area clamping jaw assembly, the clamping driving part is mounted on the bottom rotating device, and the clamping control end of the clamping driving part is mounted on the large-area clamping jaw assembly and used for clamping the square lithium battery;
the jacking transplanting mechanisms 400 are used for lifting the position of the square lithium battery to meet the battery cell height state of the subsequent process, are sequentially arranged along the X direction, are all installed on an equipment installation surface, are respectively arranged at two sides of the battery cell turnover mechanism 200 together with the large-area detection mechanism 100, are parallel and opposite to the battery cell turnover mechanism 200, and comprise a jacking driving device 410, a jacking buffer device 420 and a suction tool 430, wherein the bottom of the jacking driving device 410 is installed on the equipment installation surface, the lifting end of the jacking driving device 410 extends and retracts vertically, and the lifting end of the jacking driving device 410 is connected with the bottom of the jacking buffer device 420 and is used for driving the jacking buffer device to lift and retract vertically; the top of the jacking buffer device 420 is provided with a suction tool 430 for sucking and fixing the square lithium battery.
The X-direction driving device 110 is a servo motor, the linear sliding device 120 includes a linear module 121 serving as an X-direction guide portion, a sliding plate 122 serving as an X-direction sliding portion, and a first drag chain 123, and the linear module 121 is supported on an equipment installation surface; the servo motor is arranged at one end of the linear module 121 and is positioned below the sliding plate 122, and a power output end of the servo motor is connected with a power input end of the linear module 121; the sliding plate 122 is disposed above the linear module 121 and connected to the X-direction linear sliding member of the linear module 121; the first drag chain 123 is laid on one side of the linear module 121 along the X direction and is parallel to and opposite to the linear module 121, and one end of the first drag chain 123 is connected with the sliding plate 122; when the servo motor acts, the sliding plate 122 is driven to act, and the camera detection assembly 130 is further driven to move in the X-axis direction.
The camera scanning assembly 130 includes a 2.5D camera 131 and a camera light source 132, the 2.5D camera 131 and the camera light source 132 are both mounted on the sliding plate 122, and a camera of the 2.5D camera 131 is aligned with the battery positioning rotating mechanism 300 for performing large-area detection on the square lithium battery.
The battery cell overturning mechanism 200 comprises a low-speed rotating cylinder 210, a rotating shaft 220 arranged along the X direction, two bearings with seats 230 and a coupling 240, wherein the rotating shaft 220 is supported on an equipment mounting surface through the bearings with seats 221 at two ends; the coupling 240 is disposed at one side of the rotating shaft 220 and located between the rotating shaft 220 and the low-speed rotating cylinder 210; the low-speed rotating cylinder 210 is arranged on one side of the rotating shaft 220; when the low-speed rotation cylinder 210 acts, the coupling 240 and the rotation shaft 220 are driven to rotate, and the battery positioning rotation mechanism 300 between the two bearings 230 is further driven to turn over.
The bottom rotating device 310 comprises a first cylinder mounting plate 311 and a rotating cylinder 312, wherein the first cylinder mounting plate 311 is mounted on the rotating shaft 220; the rotary cylinder 312 is mounted on the first cylinder mounting plate; the lifting end of the rotary cylinder 312 is connected to the bottom of the top clamp 320.
The clamping driving part comprises a second air cylinder mounting plate 321 and a clamping air cylinder 322; the large-area clamping jaw assembly comprises a first thickness clamping jaw assembly 323, a second thickness clamping jaw assembly 324, a first supporting piece 325, a second supporting piece 326 and a cell insulation carrying platform 327, wherein the first supporting piece 325 and the second supporting piece 326 are at the same horizontal height, and the inner end of the first supporting piece 325 and the inner end of the second supporting piece 326 are respectively connected with the clamping end of the clamping cylinder 322; the outer end of the first support 325 and the outer end of the second support 326 are respectively provided with the first thickness clamping jaw assembly 323 and the second thickness clamping jaw assembly 324, and the first thickness clamping jaw assembly 323 and the second thickness clamping jaw assembly 324 are kept to face each other to form a clamping jaw for clamping a square lithium battery; a photosensor 3241 is disposed on the second thickness jaw assembly 324; the cell insulation rack 327 is installed above the cylinder body of the clamping cylinder 322, and a gap for the first support 325 and the second support 326 to pass through is reserved between the cell insulation rack and the cylinder body of the clamping cylinder 322; the bottom of a square aluminum shell battery cell 500 of the square lithium battery is supported on the battery cell insulating carrying platform 327, and two end parts are fixed through a first thickness clamping jaw assembly 323 and a second thickness clamping jaw assembly 324; when the rotating cylinder 312 acts, the clamping cylinder 322, the large-area clamping jaw assembly, the cell insulation carrying platform 327, and the square aluminum-shell cell 500 are driven to rotate, so as to drive the battery positioning and rotating mechanism 300 to rotate.
The jacking driving device 410 comprises a jacking cylinder 411, a jacking guide shaft 412, a first linear bearing 413, a limiting fixing ring 414, a jacking fixing plate 415 and an upright column 416, wherein the jacking cylinder 412 is suspended at the bottom of the jacking fixing plate 415, and the jacking end of the jacking cylinder 411 penetrates through the jacking fixing plate 415 and then is connected with the jacking buffer device 420 above the jacking fixing plate 415 for driving the jacking buffer device 420 to lift; the two first linear bearings 413 are symmetrically embedded at two ends of the jacking fixing plate 415 respectively and are used for the jacking guide shaft 412 to penetrate through; the number of the jacking guide shafts 412 is two, the jacking guide shafts 412 are parallel to the axial direction of the jacking cylinder 411, the two jacking guide shafts 412 are symmetrically arranged at two end parts of the jacking fixing plate, and the jacking guide shafts 412 are arranged on the first linear bearing 413 in a penetrating manner and are in sliding fit; the lower end of the jacking guide shaft 413 is sleeved with a limiting fixing ring 414 for preventing the jacking guide shaft 412 from being disengaged from the first linear bearing 413; the upper end of the jacking guide shaft 412 is connected with the jacking buffer device 420; the number of the upright posts 416 is four, and the upright posts are vertically mounted at four corners of the jacking fixing plate 415 and are used for supporting the large surface of the square lithium battery.
The jacking driving device 410 further comprises a second drag chain 440, the second drag chain is axially arranged along the jacking guide shaft, one end of the second drag chain 440 is connected with the equipment installation surface, and the other end of the second drag chain 440 is connected with the jacking plate.
The jacking buffer device 420 comprises a jacking plate 421, a second linear bearing 422, a buffer guide shaft 423, a second linear bearing 422 and a spring buffer device 424, wherein the jacking plate 421 is fixedly connected with the upper end of the jacking guide shaft 412, and the jacking plate 421 is kept parallel to the jacking fixed plate 421; the second linear bearing 422 is embedded on the lifting plate 421; the number of the buffer guide shafts 423 is four, the buffer guide shafts are respectively arranged in the corresponding second linear bearings 422 in a penetrating manner, and the buffer guide shafts are in sliding fit with the second linear bearings 422; the bottom end of the buffer guide shaft 423 is fixedly connected with the jacking fixing plate 415, and the upper part of the buffer guide shaft 423 is fixedly connected with the suction tool 430 through four sets of spring buffer devices 424; when the jacking cylinder 411 acts, the jacking plate 421 and the suction tool 430 are driven to perform a lifting action, so as to drive the square lithium battery to perform a lifting action.
Embodiment 2 an application method of a system for detecting appearance defects of a large surface of a square lithium battery according to the present invention includes the following steps:
s1, the battery positioning and rotating assembly 300 clamps and positions the fed square lithium battery;
s2, after the square lithium battery is positioned, the 2.5D camera 131 moves in the X-axis direction under the action of the linear module 121, and then the large-area features of the square lithium battery are photographed and scanned through the 2.5D camera 131;
s3, after the code scanning is finished, the square lithium battery rotates for 180 degrees under the action of the battery positioning rotating assembly 300, then the 2.5D camera 131 moves in the X-axis direction under the action of the linear module 121, and the other large surface of the square lithium battery is photographed and scanned;
s4, after the code scanning is completed, the rotating shaft is driven by the low-speed rotating cylinder 210 to further drive the square lithium battery on the battery positioning rotating assembly 300 to be placed on the jacking transplanting assembly 400 in a state of changing from the standing state to the lying state;
The embodiments described in this specification are merely illustrative of implementations of the inventive concept and the scope of the present invention should not be considered limited to the specific forms set forth in the embodiments but includes equivalent technical means as would be recognized by those skilled in the art based on the inventive concept.
Claims (8)
1. The utility model provides a big face appearance defect detecting system of square lithium cell which characterized in that includes:
the large-area detection mechanism comprises an X-direction driving device, a linear sliding device and a camera scanning assembly, wherein the linear sliding device comprises an X-direction guide part and an X-direction sliding part, the X-direction guide part is horizontally supported on the equipment mounting surface, and the axial direction of the X-direction guide part is taken as the X direction; the X-direction driving device is arranged at the end part of the X-direction guide part, and the power output end of the X-direction driving device is connected with the power input end of the X-direction guide part; the X-direction sliding part is arranged on the X-direction guide part and is driven by the driving device to move linearly along the axial direction of the X-direction guide part; the camera scanning assembly is arranged on the sliding part and used for carrying out large-area detection on the square lithium battery;
the battery cell turnover mechanism is arranged between the large-area detection mechanism and the jacking transplanting mechanism and comprises a low-speed rotating cylinder, a rotating shaft and a bearing with a seat, the rotating shaft is rotatably arranged on an equipment mounting surface beside the large-area detection mechanism through the bearing with the seat, and the rotating shaft is arranged along the X direction; the power output end of the low-speed rotating cylinder is connected with one end of the rotating shaft through a coupler and is used for driving the battery positioning rotating mechanism to overturn;
the battery positioning rotating mechanism is arranged on the battery cell overturning mechanism and comprises a bottom rotating device and a top clamping device, and the bottom rotating device is fixedly arranged on the rotating shaft and is used for driving the top clamping device to rotate circumferentially around a vertical central shaft; the top clamping device is arranged on a rotating part of the bottom rotating device and comprises a clamping driving part and a large-area clamping jaw assembly, the clamping driving part is arranged on the bottom rotating device, and the clamping control end of the clamping driving part is provided with the large-area clamping jaw assembly and is used for clamping the square lithium battery;
the jacking transplanting mechanism is arranged on an equipment mounting surface, is respectively arranged at two sides of the electric core turnover mechanism together with the large-surface detection mechanism, and comprises a jacking driving device, a jacking buffer device and a suction tool, wherein the bottom of the jacking driving device is arranged on the equipment mounting surface, the lifting end of the jacking driving device vertically stretches, and the lifting end of the jacking driving device is connected with the bottom of the jacking buffer device and is used for driving the jacking buffer device to lift along the vertical direction; and the top of the jacking buffer device is provided with a suction tool for adsorbing and fixing the square lithium battery.
2. The system for detecting the appearance defects of the large surface of the square lithium battery as claimed in claim 1, wherein: the X-direction driving device is a servo motor, the linear sliding device comprises a linear module serving as an X-direction guide part, a sliding plate serving as an X-direction sliding part and a first drag chain, and the linear module is supported on an equipment mounting surface; the power output end of the servo motor is connected with the power input end of the linear module; the sliding plate is arranged above the linear module and is connected with the X-direction linear sliding piece of the linear module; the first drag chain is laid on one side of the straight line module along the X direction and is parallel and opposite to the straight line module, and one end of the first drag chain is connected with the sliding plate.
3. The system for detecting the appearance defects of the large surface of the square lithium battery as claimed in claim 2, wherein: the camera scanning assembly comprises a 2.5D camera and a camera light source, the 2.5D camera and the camera light source are both installed on the sliding plate, and a camera of the 2.5D camera is aligned with the battery positioning rotating mechanism and used for carrying out large-area detection on the square lithium battery.
4. The system for detecting the appearance defects of the large surface of the square lithium battery as claimed in any one of claims 1 to 3, wherein: the bottom rotating device comprises a first air cylinder mounting plate and a rotating air cylinder, and the first air cylinder mounting plate is mounted on the rotating shaft; the rotary cylinder is arranged on the first cylinder mounting plate; and the lifting end of the rotary cylinder is connected with the bottom of the top clamping device.
5. The system for detecting the appearance defects of the large surface of the square lithium battery as claimed in claim 4, wherein: the clamping driving part comprises a second air cylinder mounting plate and a clamping air cylinder; the large-surface clamping jaw assembly comprises a first thickness clamping jaw assembly, a second thickness clamping jaw assembly, a first supporting piece, a second supporting piece and a battery cell insulating carrying platform, wherein the first supporting piece and the second supporting piece are positioned at the same horizontal height, and the inner end of the first supporting piece and the inner end of the second supporting piece are respectively connected with the clamping end of the clamping cylinder; the outer end of the first supporting piece and the outer end of the second supporting piece are respectively provided with the first thickness clamping jaw assembly and the second thickness clamping jaw assembly, and the first thickness clamping jaw assembly and the second thickness clamping jaw assembly are kept right opposite to each other to form a clamping jaw for clamping a square lithium battery; a photoelectric sensor is arranged on the second thickness clamping jaw assembly; the battery cell insulating rack is arranged above the cylinder body of the clamping cylinder, and a gap for the first supporting piece and the second supporting piece to pass through is reserved between the battery cell insulating rack and the cylinder body of the clamping cylinder.
6. The system for detecting the appearance defects of the large surface of the square lithium battery as claimed in claim 5, wherein: the jacking driving device comprises a jacking cylinder, a jacking guide shaft, a first linear bearing, a limiting fixing ring, a jacking fixing plate and an upright post, the jacking cylinder is hung at the bottom of the jacking fixing plate, and the jacking end of the jacking cylinder penetrates through the jacking fixing plate and then is connected with the jacking buffer device and used for driving the jacking buffer device to lift; the first linear bearing is embedded on the jacking fixing plate; the jacking guide shaft is arranged on the first linear bearing in a penetrating manner and is in sliding fit with the first linear bearing; the lower end part of the jacking guide shaft is sleeved with a limiting fixing ring for preventing the jacking guide shaft from coming off from the first linear bearing; the upper end of the jacking guide shaft is connected with the jacking buffer device; the upright post is vertically arranged on the jacking fixing plate.
7. The system for detecting the appearance defects of the large surface of the square lithium battery as claimed in claim 6, wherein: the jacking buffer device comprises a jacking plate, a second linear bearing, a buffer guide shaft, a second linear bearing and a spring buffer device, wherein the jacking plate is fixedly connected with the upper end of the jacking guide shaft and keeps the jacking plate parallel to the jacking fixed plate; the second linear bearing is embedded on the jacking plate; the buffer guide shaft is arranged in the second linear bearing in a penetrating manner and is in sliding fit with the second linear bearing; the bottom end of the buffering guide shaft is fixedly connected with the jacking fixing plate, and the upper part of the buffering guide shaft is fixedly connected with the suction tool through the spring buffering device.
8. The application method of the system for detecting the appearance defects of the large surface of the square lithium battery as claimed in claim 7, comprising the following steps:
s1, clamping and positioning the fed square lithium battery by the battery positioning and rotating assembly;
s2, after the square lithium battery is positioned, the 2.5D camera moves in the X-axis direction under the action of the linear module, and then the 2.5D camera takes pictures and scans the large-area features of the square lithium battery;
s3, after the code scanning is finished, the square lithium battery rotates for 180 degrees under the action of the battery positioning rotating assembly, then the 2.5D camera moves in the X-axis direction under the action of the linear module, and the other large surface of the square lithium battery is photographed and scanned;
s4, after the code scanning is finished, the rotating shaft is driven under the action of the low-speed rotating cylinder so as to drive the square lithium battery on the battery positioning rotating assembly to be placed on the jacking transplanting assembly from the standing state to the lying state;
spring buffer can avoid the excessive pressure destruction of electricity core placement process effectively in the subassembly is transplanted in the S5 jacking, places the square electric core of square lithium cell in place at electric core tilting mechanism back low-speed revolving cylinder action, turns over electric core tilting mechanism back to original state, thereby the electric core high state that satisfies the follow-up procedure is raised to the electric core position that the jacking cylinder action was lain.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114859067A (en) * | 2022-04-26 | 2022-08-05 | 厦门微亚智能科技有限公司 | Membrane defect detection equipment |
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2021
- 2021-06-29 CN CN202110724880.7A patent/CN113466243A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114859067A (en) * | 2022-04-26 | 2022-08-05 | 厦门微亚智能科技有限公司 | Membrane defect detection equipment |
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