Power battery appearance defect detection device

Abstract

The utility model relates to a power battery appearance defect detection device, which has a frame and a working platform; a loading station, a moving station, a reversing station, a detection station and a unloading station are arranged on the working platform; a loading mechanism is arranged on the loading station, a moving mechanism is arranged on the moving station, a reversing mechanism is arranged on the reversing station, a detection mechanism is arranged on the detection station, and an unloading mechanism is arranged on the unloading station for classifying and unloading batteries after the detection is completed; after the loading mechanism loads the battery, the moving mechanism drives the conveyor belt through the driving motor and the conveyor belt drives each sliding bottom plate to transfer the battery, and after the reversing mechanism is reversed, and the detection mechanism detects each large side surface, small side surface, and each corner edge, the unloading mechanism is entered for classification and unloading. The utility model has an ingenious structure and is efficient and convenient.

Description

Technical Field

[0001] The utility model relates to the field of power battery detection, in particular to a power battery appearance defect detection device. Background Art

[0002] With the rapid development of the electric vehicle industry, the lithium battery industry is also extremely popular, with large production capacity. In the production process of lithium batteries, because the shell is mainly made of aluminum, the material is relatively soft, and various defects are easily caused during the production process, such as surface scratches, bumps, cracks, etc. Once these defects are not discovered in the subsequent manual inspection, they will flow to the customer's site, causing battery short circuits, and the consequences are unimaginable.

[0003] In the prior art, a battery pack has a certain weight. During manual inspection, long-term inspection will cause great manual fatigue and greatly increase the error rate, which greatly affects the inspection efficiency and quality of the battery and is very inconvenient. Utility Model Content

[0004] The purpose of the utility model is to provide a power battery appearance defect detection device with ingenious structure, which can realize automatic feeding, detection, unloading and classification of power batteries, and ensure the accuracy and precision of detection, and is efficient and practical.

[0005] The technical scheme for realizing the purpose of the utility model is as follows: the utility model has a frame and a working platform fixed on the frame; the working platform is provided with a loading station, a moving station, a reversing station, a detection station and a unloading station; the loading station is provided with a loading mechanism that can grab and load power batteries, and read and transplant them; the moving station is provided with a moving mechanism that can circularly move each battery to be detected; the reversing station is provided with a reversing mechanism that can rotate and reverse the battery; the detection station is provided with a detection mechanism that can shoot and detect each side and each corner edge of the battery; the unloading station is provided with a unloading mechanism that can classify and unload the batteries after the detection is completed;

[0006] The mobile mechanism includes a mobile base plate fixed on the working platform, a conveyor belt running on the mobile base plate under the drive of a driving motor, an annular slide rail arranged on the mobile base plate, a plurality of sliding base plates that can slide on the annular slide rail under the drive of the conveyor belt, and a placement component arranged on each sliding base plate and capable of placing batteries. The placement component includes a fixed base fixed on the sliding base plate, a positioning base arranged on the fixed base, a positioning slide groove arranged on the positioning base, and a positioning slider relatively slidably arranged in the positioning slide groove, and side grooves are arranged on both sides of the positioning slide groove. Each positioning slider is provided with a pressing step, and the pressing steps on each positioning slider are arranged oppositely, and the pressing step is provided with a step surface flush with the upper end surface of the positioning base, and a pressing surface that can press the battery, and a spring is provided between the bottom of each positioning slide groove and the corresponding positioning slider, and the two ends of the spring act on the bottom of the groove and the positioning slider respectively, and each positioning slider presses the large side surface of the battery located in the side groove through the continuous force of each spring, and the pressing surface on each positioning slider presses the small side surface of the battery through the continuous force of each spring after the battery is reversed and rotated;

[0007] After the loading mechanism loads the batteries, the mobile mechanism drives the conveyor belt through the drive motor and the conveyor belt drives each sliding bottom plate to transfer the batteries, and after the reversing mechanism changes direction and the detection mechanism detects each large side surface, small side surface, and each corner edge, the batteries enter the unloading mechanism for classification and unloading.

[0008] Furthermore, the feeding mechanism includes a gripping component that can grip the battery, a bottom detection component that can photograph and detect the bottom of the battery, a preliminary positioning component that can preliminarily position the battery, and a transfer component that can read and transfer the battery after the preliminary positioning. The gripping component includes a gripping bracket fixed on the working platform, a first linear module fixed on the gripping bracket, a second linear module slidably arranged on the first linear module under the drive of the first linear module, a gripping plate slidably arranged on the second linear module under the drive of the second linear module, a first pneumatic finger fixed on the gripping plate, and a first pneumatic finger fixed on the first pneumatic finger. The first driving splint at each driving end, the sliding direction of the second linear module is set parallel to the working platform, the moving direction of the grab plate is set perpendicular to the working platform, the sliding direction of each first driving splint is set perpendicular to the extension direction of the first linear module, and each first driving splint grabs and transfers the battery through the driving of the second linear module by the first linear module, the driving of the grab plate by the second linear module, and the driving of the first pneumatic finger; the bottom detection component includes a bottom detection light source and a bottom detection camera fixed on the working platform, and the bottom detection camera shoots and detects the bottom of the battery by cooperating with the bottom detection light source.

[0009] Furthermore, the preliminary positioning assembly includes a preliminary positioning bracket fixed on the working platform, a bottom linear module fixed on the preliminary positioning bracket, a positioning box fixed on the output end of the bottom linear module and capable of placing batteries, and a positioning push rod fixed on the preliminary positioning bracket. The extension direction of the bottom linear module is parallel to the extension direction of the first linear module, the extension direction of the positioning box is the same as the extension direction of the first linear module, both ends of the positioning box are provided with through grooves for the positioning push rod to pass through, the positioning box receives the battery on the first driving splint through the drive of the bottom linear module, and the positioning push rod passes through the through groove and extends into the positioning box when the positioning box is reset, and fixes the battery against the positioning box.

[0010] Furthermore, the transfer component includes a transfer bracket fixed on the working platform, a third linear module fixed on the transfer bracket, a fourth linear module slidably arranged on the third linear module under the drive of the third linear module, a transfer plate slidably arranged on the fourth linear module under the drive of the fourth linear module, a barcode scanner fixed on the transfer plate, a second pneumatic finger fixed on the transfer plate, and a second driving splint fixed at each output end of the second pneumatic finger. The extension direction of the third linear module is perpendicular to the extension direction of the first linear module. The barcode scanner is transferred to the top of the positioning box and scans the battery through the driving of the fourth linear module by the third linear module and the driving of the transfer plate by the fourth linear module. Each second driving splint transfers the battery in the positioning box to the placement component through the driving of the fourth linear module by the third linear module, the driving of the transfer plate by the fourth linear module, and the driving of the second pneumatic finger.

[0011] Furthermore, the above-mentioned reversing mechanism includes a reversing bracket fixed on the working platform, a reversing cylinder fixed on the reversing bracket, a lifting plate fixed on the telescopic end of the reversing cylinder, a rotating cylinder fixed on the lifting plate, a third pneumatic finger fixed on the telescopic end of the rotating cylinder, and a third driving clamp fixed on each output end of the third pneumatic finger. Each third driving clamp clamps and reverses the battery through the driving of the lifting plate by the reversing cylinder and the driving of the third pneumatic finger by the rotating cylinder.

[0012] Furthermore, a relatively arranged limit slide bar is provided on the end surface of the lifting plate facing away from the rotating cylinder, and a guide flange corresponding to each limit slide bar is provided on the reversing bracket, and the lifting plate is set on the reversing bracket through the cooperation of each limit slide bar and the guide flange.

[0013] Furthermore, the detection mechanism includes a top shooting component that can shoot and detect the top of the battery, multiple side detection components that can shoot and detect each side of the battery, and multiple edge detection components that can shoot and detect each corner edge of the battery. The top shooting component includes a top surface shooting component and a top edge shooting component. The working platform is provided with a positioning platform, and the positioning platform is located above the conveyor belt. The top surface shooting component includes a first bracket fixed on the positioning platform, a top camera fixed on the first bracket and capable of shooting and detecting the top of the battery, and a top light source. The top camera cooperates with the top light source to position the top of the battery. The top edge shooting component includes a second bracket fixed on the working platform and the positioning platform, a fifth linear module fixed on the second bracket and arranged in parallel with the extension direction of the fourth linear module, a first mounting plate raised and lowered on the fifth linear module under the drive of the fifth linear module, a first line scanning light source and a first line scanning camera installed on the first mounting plate, the first line scanning camera shoots and detects the edges of the top of the battery by cooperating with the first line scanning light source, the side detection components and the edge detection components are evenly distributed on the working platform and the positioning platform, and after the top shooting and detection of the battery are completed, the sides and edges of the battery are shot and detected.

[0014] Furthermore, the side detection component includes two first shooting components that are relatively and staggered in height, and the two first shooting components are respectively arranged on the working platform and the positioning platform. The first shooting component includes a sixth linear module fixed on the working platform or the positioning platform, a first shooting bracket slidably arranged on the sixth linear module under the drive of the sixth linear module, a second line scan camera fixed on the first shooting bracket, and a second line scan light source. The extension direction of the sixth linear module is arranged parallel to the extension direction of the third linear module. Each second line scan camera located on the working platform and the positioning platform shoots and detects each side of the battery by cooperating with the second line scan light source. The working platform and the positioning platform are both provided with multiple edge detection components, and the edge detection component includes a seventh linear module fixed on the working platform or the positioning platform, a second mounting plate slidably arranged on the seventh linear module under the drive of the seventh linear module, a second shooting bracket fixed on the second mounting plate, a side shooting light source and a side shooting camera installed on the second shooting bracket, and each side shooting camera shoots and detects each corner edge of the battery by cooperating with each corresponding side shooting light source.

[0015] Furthermore, the above-mentioned unloading mechanism includes an unloading grabbing component that can grab the batteries on the display component, and a screening component that can classify the grabbed batteries. The unloading grabbing component includes an unloading bracket fixed on the working platform, an eighth linear module relatively arranged on the unloading bracket, a ninth linear module slidably arranged on the eighth linear module under the drive of the eighth linear module, a tenth linear module slidably arranged on the ninth linear module under the drive of the ninth linear module, an unloading plate arranged on the tenth linear module and raised and lowered under the drive of the tenth linear module, and a ninth linear module fixed on the unloading plate. Four pneumatic fingers, and a fourth driving splint fixed at the output end of each fourth pneumatic finger, the extension direction of the eighth linear module is parallel to the extension direction of the first linear module, the extension direction of the ninth linear module is parallel to the extension direction of the third linear module, the extension direction of the tenth linear module is perpendicular to the working platform, and each fourth driving splint transfers the batteries on the display assembly to the screening assembly through the eighth linear module driving the ninth linear module, the ninth linear module driving the tenth linear module, the tenth linear module driving the blanking plate, and the fourth pneumatic fingers.

[0016] Furthermore, the above-mentioned screening assembly includes a screening bracket fixed on the working platform, and a plurality of conveyor belt groups arranged on the screening bracket, the conveyor belt groups include adjacent qualified product conveyor belts and unqualified product conveyor belts, the screening bracket is provided with a qualified product conveying motor that can drive the qualified product conveyor belt, and an unqualified product conveying motor that can drive the unqualified product conveyor belt, the running directions of the qualified product conveyor belt and the unqualified product conveyor belt are arranged parallel to the extension direction of the eighth linear module, the screening bracket is also provided with a guide bracket, each guide bracket is provided with three guide rods, the extension direction of each guide rod is arranged parallel to the extension direction of the eighth linear module, each guide rod is provided with a plurality of guide rollers evenly distributed along the extension direction of the guide rod, the axis of each guide roller is arranged perpendicular to the working platform, and the batteries on each qualified product conveyor belt and the unqualified product conveyor belt are unloaded by the drive of the corresponding conveying motor and the guidance of each guide roller.

[0017] The utility model has positive effects: (1) The utility model sets a moving mechanism, sets a moving base plate on the working platform, and sets an annular slide rail on the moving base plate. Rollers that cooperate with the annular slide rail are set on both sides of the sliding base plate to cooperate with the annular slide rail, so as to realize the sliding of the placement component on the annular slide rail. The placement component positions and presses the battery by sliding the positioning slider in the positioning slide groove and continuously applying force of the spring. The pressing surface on the pressing step can achieve tight pressing on the battery. The side grooves set can continue to press the battery after the battery is rotated, thereby ensuring the stability of the battery before and after switching and in the process of circular movement. By detecting the battery, the problem of cumbersome battery loading in the prior art and the problem that manual calibration is prone to wrong picking or missed detection is effectively solved, thereby ensuring the efficiency and accuracy of battery detection. The structure is ingenious and stable and practical.

[0018] (2) The utility model arranges a feeding mechanism with a grabbing component, a bottom detection component, a preliminary positioning component and a transfer component. The grabbing component can accurately and efficiently receive the battery of the previous process, and the bottom surface of the battery can be photographed and detected by a bottom detection camera and a bottom detection light source, thereby ensuring the efficiency of battery feeding while also ensuring the accuracy of battery bottom surface detection, which is efficient and convenient.

[0019] (3) The utility model sets a preliminary positioning component, and drives the positioning box to slide through the bottom linear module on the preliminary positioning bracket. The battery in the positioning box is preliminarily positioned by the positioning push rod, which lays a foundation for the subsequent shooting and detection of the sides and corner edges of the battery.

[0020] (4) The utility model calibrates the loaded batteries by setting a barcode scanner, and then transfers the batteries from the positioning box to the placement assembly through the second driving clamp to realize the loading of the batteries, which is stable, accurate and practical.

[0021] (5) The utility model sets a reversing mechanism on the working platform, drives the battery to reverse through the third driving clamp, and rotates the battery 90 degrees, so as to realize the shooting and detection of each side and each corner edge of the battery, thereby ensuring the comprehensive detection of the battery and the accuracy of the detection.

[0022] (6) The utility model sets a limit slide bar on the upper part of the lifting plate, sets a guide flange on the reversing bracket, and limits the lifting and lowering of the lifting plate through the cooperation of the limit slide bar and the guide flange, which is convenient and practical.

[0023] (7) The utility model sets a top shooting component, and shoots and detects the top of the battery through the cooperation of the top camera and the fixed internal light source, and shoots and detects the corner edges of the top of the battery through the cooperation of the first line scanning light source and the first line scanning camera, so as to accurately and comprehensively shoot and detect the top of the battery, which is efficient and practical.

[0024] (8) The utility model photographs and detects the various sides of the battery by setting up a first shooting component, a second line scanning light source and a second line scanning camera, and photographs and detects the corner edges of the battery by using a side shooting light source and a side shooting camera, thereby ensuring the comprehensiveness and accuracy of the detection.

[0025] (9) The utility model sets a material unloading grasping assembly and a screening assembly on the unloading mechanism. The fourth pneumatic finger on the unloading area assembly transfers the batteries on the display assembly through the eighth linear module driving the ninth linear module, the ninth linear module driving the tenth linear module, the tenth linear module driving the unloading plate, and the fourth pneumatic finger driving, thereby ensuring the stability of the battery unloading.

[0026] (10) The utility model can accurately sort the batteries after inspection by configuring the conveyor belt group into a qualified product conveyor belt and a failed product conveyor belt. The guide rollers on each guide rod guide the batteries on the qualified product conveyor belt and the failed product conveyor belt to ensure the stability and safety of the batteries during the unloading process. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to make the content of the utility model easier to understand, the utility model is further described in detail according to specific embodiments and in conjunction with the accompanying drawings.

[0028] Figure 1 This is a schematic diagram of the overall structure of the power battery appearance defect detection device in the utility model;

[0029] Figure 2 It is a schematic diagram of the overall structure of the grabbing assembly in the utility model;

[0030] Figure 3 This is a schematic diagram of the overall structure of the bottom detection component in the utility model;

[0031] Figure 4 It is a schematic diagram of the overall structure of the preliminary positioning component in the utility model;

[0032] Figure 5 It is a schematic diagram of the overall structure of the transfer component in the utility model;

[0033] Figure 6 This is a schematic diagram of the overall structure of the top surface shooting component in the utility model;

[0034] Figure 7 It is a schematic diagram of the overall structure of the top edge shooting assembly in the utility model;

[0035] Figure 8 It is a schematic diagram of the overall structure of the reversing mechanism in the utility model;

[0036] Fig. 9 This is a schematic diagram of the overall structure of the first shooting component in the utility model;

[0037] Fig.10 This is a schematic diagram of the overall structure of the edge detection component of the utility model;

[0038] Fig.11 It is a schematic diagram of the overall structure of the mobile mechanism in the utility model;

[0039] Fig.12 It is a schematic diagram of the overall structure of the components placed in the utility model;

[0040] Fig.13 This is a schematic diagram of the overall structure of the material feeding and grabbing assembly in the utility model;

[0041] Fig.14 It is a schematic diagram of the overall structure of the intermediate screening assembly of the utility model. DETAILED DESCRIPTION

[0042] See Figures 1 to 14 The utility model has a frame 1 and a working platform 2 fixed on the frame 1; the working platform 2 is provided with a loading station, a moving station, a reversing station, a detection station and a unloading station, the loading station is provided with a loading mechanism 3 that can grab and load power batteries, and read and transplant them, the moving station is provided with a moving mechanism 4 that can circularly move each battery to be detected, the reversing station is provided with a reversing mechanism 5 that can rotate and reverse the battery, the detection station is provided with a detection mechanism 6 that can shoot and detect each side and each corner edge of the battery, and the unloading station is provided with a unloading mechanism 7 that can classify and unload the batteries after the detection is completed;

[0043] The mobile mechanism 4 includes a mobile base plate 41 fixed on the working platform 2, a conveyor belt 42 operating on the mobile base plate 41 driven by a driving motor, an annular slide rail 43 arranged on the mobile base plate 41, a plurality of sliding base plates 44 that can slide on the annular slide rail 43 driven by the conveyor belt 42, and a placement component 45 arranged on each sliding base plate 44 and capable of placing batteries. The placement component 45 includes a fixed base 451 fixed on the sliding base plate 44, a positioning base 452 arranged on the fixed base 451, a positioning slide groove 453 arranged on the positioning base 452, and a positioning slider 455 relatively slidably arranged in the positioning slide groove 453, and side grooves 45 are arranged on both sides of the positioning slide groove 453. 4. Each positioning slider 455 is provided with a pressing step, and the pressing steps on each positioning slider 455 are arranged opposite to each other. The pressing step is provided with a step surface 457 flush with the upper end surface of the positioning base 452, and a pressing surface 458 that can press the battery. A spring 456 is provided between the bottom of each positioning slot 453 and the corresponding positioning slider 455, and the two ends of the spring 456 act on the bottom of the slot and the positioning slider 455 respectively. Each positioning slider 455 presses against the large side surface of the battery located in the side slot 454 through the continuous force of each spring 456, and the pressing surface 458 on each positioning slider 455 presses against the small side surface of the battery through the continuous force of each spring 456 after the battery is reversed and rotated;

[0044] After the loading mechanism 3 loads the batteries, the moving mechanism 4 transfers the batteries by driving the conveyor belt 42 through the driving motor and the conveyor belt 42 drives each sliding bottom plate 44, and after the reversing mechanism 5 reverses and the detection mechanism 6 detects each large side surface, small side surface, and each corner edge, the batteries enter the unloading mechanism 7 for classification and unloading.

[0045] The feeding mechanism 3 includes a grabbing component 31 for grabbing batteries, a bottom detection component 32 for photographing and detecting the bottom of the battery, a preliminary positioning component 33 for preliminary positioning of the battery, and a transfer component 34 for reading and transferring the battery after preliminary positioning. The grabbing component 31 includes a grabbing bracket 311 fixed on the working platform 2, a first linear module 312 fixed on the grabbing bracket 311, a second linear module 313 slidably arranged on the first linear module 312 driven by the first linear module 312, a grabbing plate 314 slidably arranged on the second linear module 313 driven by the second linear module 313, a first pneumatic finger 315 fixed on the grabbing plate 314, and each pneumatic finger 315 fixed on the first pneumatic finger 315. The first driving clamp plate 316 at the driving end, the sliding direction of the second linear module 313 is set parallel to the working platform 2, the moving direction of the grab plate 314 is set perpendicular to the working platform 2, the sliding direction of each first driving clamp plate 316 is set perpendicular to the extension direction of the first linear module 312, and each first driving clamp plate 316 grabs and transfers the battery through the driving of the second linear module 313 by the first linear module 312, the driving of the grab plate 314 by the second linear module 313, and the driving of the first pneumatic finger 315; the bottom detection component 32 includes a bottom detection light source 321 and a bottom detection camera 322 fixed on the working platform 2, and the bottom detection camera 322 photographs and detects the bottom of the battery by cooperating with the bottom detection light source 321.

[0046] The preliminary positioning assembly 33 includes a preliminary positioning bracket 331 fixed on the working platform 2, a bottom linear module 332 fixed on the preliminary positioning bracket 331, a positioning box 334 fixed on the output end of the bottom linear module 332 and capable of placing batteries, and a positioning push rod 333 fixed on the preliminary positioning bracket 331. The extension direction of the bottom linear module 332 is parallel to the extension direction of the first linear module 312. The extension direction of the positioning box 334 is the same as the extension direction of the first linear module 312. Both ends of the positioning box 334 are provided with grooves for the positioning push rod 333 to pass through. The positioning box 334 receives the battery on the first driving splint 316 through the drive of the bottom linear module 332. The positioning push rod 333 passes through the groove and extends into the positioning box 334 when the positioning box 334 is reset, and fixes the battery against the positioning box 334.

[0047] The transfer assembly 34 includes a transfer bracket 341 fixed on the work platform 2, a third linear module 342 fixed on the transfer bracket 341, a fourth linear module 343 slidably arranged on the third linear module 342 under the drive of the third linear module 342, a transfer plate 344 slidably arranged on the fourth linear module 343 under the drive of the fourth linear module 343, a barcode scanner 345 fixed on the transfer plate 344, a second pneumatic finger 346 fixed on the transfer plate 344, and a second driving clamp 347 fixed to each output end of the second pneumatic finger 346. The extension direction of the third linear module 342 is perpendicular to the extension direction of the first linear module 312. The scanner 345 is transferred to the top of the positioning box 334 and scans the battery through the driving of the fourth linear module 343 by the third linear module 342 and the driving of the transfer plate 344 by the fourth linear module 343. Each second driving clamp 347 transfers the battery in the positioning box 334 to the placement component 45 through the driving of the fourth linear module 343 by the third linear module 342, the driving of the transfer plate 344 by the fourth linear module 343, and the driving of the second pneumatic finger 346.

[0048] The reversing mechanism 5 includes a reversing bracket 51 fixed on the working platform 2, a reversing cylinder 52 fixed on the reversing bracket 51, a lifting plate 53 fixed on the telescopic end of the reversing cylinder 52, a rotating cylinder 54 fixed on the lifting plate 53, a third pneumatic finger 55 fixed on the telescopic end of the rotating cylinder 54, and a third driving clamp 56 fixed on each output end of the third pneumatic finger 55. Each third driving clamp 56 clamps and reverses the battery through the driving of the lifting plate 53 by the reversing cylinder 52 and the driving of the third pneumatic finger 55 by the rotating cylinder 54.

[0049] The end surface of the lifting plate 53 facing away from the rotating cylinder 54 is provided with a relatively arranged limit slide 57, and the reversing bracket 51 is provided with a guide flange 58 corresponding to each limit slide 57. The lifting plate 53 is set on the reversing bracket 51 through the cooperation of each limit slide 57 and the guide flange 58.

[0050] The detection mechanism 6 includes a top shooting component that can shoot and detect the top of the battery, multiple side detection components that can shoot and detect each side of the battery, and multiple edge detection components 64 that can shoot and detect each corner edge of the battery. The top shooting component includes a top surface shooting component 61 and a top edge shooting component 62. The working platform 2 is provided with a positioning platform, and the positioning platform is located above the conveyor belt 42. The top surface shooting component 61 includes a first bracket 611 fixed on the positioning platform, a top camera 612 fixed on the first bracket 611 and capable of shooting and detecting the top of the battery, and a top light source 613. The top camera 612 shoots the top surface of the battery by cooperating with the top light source 613. The top edge shooting assembly 62 includes a second bracket 621 fixed on the working platform 2 and the positioning platform, a fifth linear module 622 fixed on the second bracket 621 and arranged parallel to the extension direction of the fourth linear module 343, a first mounting plate 623 set on the fifth linear module 622 and raised and lowered under the drive of the fifth linear module 622, a first line scanning light source 624 and a first line scanning camera 625 installed on the first mounting plate 623, the first line scanning camera 625 photographs and detects the edges of the top of the battery by cooperating with the first line scanning light source 624, the side detection assemblies and edge detection assemblies 64 are evenly distributed on the working platform 2 and the positioning platform, and after the top of the battery is photographed and detected, the sides and edges of the battery are photographed and detected.

[0051] The side detection component includes two first shooting components 63 that are relatively and staggered in height. The two first shooting components 63 are respectively arranged on the working platform 2 and the positioning platform. The first shooting component 63 includes a sixth linear module 631 fixed on the working platform 2 or the positioning platform, a first shooting bracket that is slidably arranged on the sixth linear module 631 under the drive of the sixth linear module 631, a second line scan camera 634 and a second line scan light source 633 fixed on the first shooting bracket, the extension direction of the sixth linear module 631 is arranged parallel to the extension direction of the third linear module 342, and each second line scan camera 634 located on the working platform 2 and the positioning platform is connected to the second line scan The light source 633 cooperates with each other to photograph and detect each side of the battery. The working platform 2 and the positioning platform are provided with multiple edge detection components 64. The edge detection component 64 includes a seventh linear module 641 fixed on the working platform 2 or the positioning platform, a second mounting plate 642 slidingly set on the seventh linear module 641 under the drive of the seventh linear module 641, a second shooting bracket fixed on the second mounting plate 642, a side shooting light source 644 and a side shooting camera 643 installed on the second shooting bracket. Each side shooting camera 643 photographs and detects each corner edge of the battery by cooperating with each corresponding side shooting light source 644.

[0052] The unloading mechanism 7 includes an unloading grabbing component 71 that can grab the batteries on the display component 45, and a screening component 72 that can classify the grabbed batteries. The unloading grabbing component 71 includes an unloading bracket 711 fixed on the working platform 2, an eighth linear module 712 relatively arranged on the unloading bracket 711, a ninth linear module 713 slidingly arranged on the eighth linear module 712 under the drive of the eighth linear module 712, a tenth linear module 714 slidingly arranged on the ninth linear module 713 under the drive of the ninth linear module 713, an unloading plate 715 raised and lowered on the tenth linear module 714 under the drive of the tenth linear module 714, and a fourth pneumatic hand fixed on the unloading plate 715. Finger 716, and a fourth driving splint 717 fixed at the output end of each fourth pneumatic finger 716, the extension direction of the eighth linear module 712 is parallel to the extension direction of the first linear module 312, the extension direction of the ninth linear module 713 is parallel to the extension direction of the third linear module 342, and the extension direction of the tenth linear module 714 is perpendicular to the working platform 2, and each fourth driving splint 717 transfers the batteries on the display assembly 45 to the screening assembly 72 through the eighth linear module 712 driving the ninth linear module 713, the ninth linear module 713 driving the tenth linear module 714, the tenth linear module 714 driving the blanking plate 715, and the fourth pneumatic finger 716.

[0053] The sub-screening assembly 72 includes a sub-screening bracket 721 fixed on the working platform 2, and a plurality of conveyor belt groups arranged on the sub-screening bracket 721, wherein the conveyor belt group includes adjacent qualified product conveyor belts 722 and unqualified product conveyor belts 723, and the sub-screening bracket 721 is provided with a qualified product conveying motor 724 that can drive the qualified product conveyor belt 722, and an unqualified product conveying motor 725 that can drive the unqualified product conveyor belt 723, and the running directions of the qualified product conveyor belt 722 and the unqualified product conveyor belt 723 are arranged parallel to the extension direction of the eighth linear module 712. The screening bracket 721 is also provided with a guide bracket 726, and each guide bracket 726 is provided with three guide rods 727. The extension direction of each guide rod 727 is arranged parallel to the extension direction of the eighth linear module 712, and each guide rod 727 is provided with a plurality of guide rollers 728 evenly distributed along the extension direction of the guide rod 727, and the axis of each guide roller 728 is arranged perpendicular to the working platform 2. The batteries on each qualified product conveyor belt 722 and the unqualified product conveyor belt 723 are unloaded by the drive of the corresponding conveying motor and the guidance of each guide roller 728.

[0054] Working principle of the utility model: During the use of the utility model, each first driving splint 316 grabs the battery through the first linear module 312 driving the second linear module 313, the second linear module 313 driving the grab plate 314, and the pneumatic finger driving. During the battery transfer process, the bottom detection camera 322 photographs and detects the bottom of the battery through the cooperation with the bottom detection light source 321. At the same time, the bottom linear module 332 drives the positioning box 334 to transfer to the bottom of the first driving splint 316 to access the battery. After access, the bottom linear module 332 drives the positioning box 334 to reset. During the resetting of the positioning box 334 When the positioning box 334 is reset, the positioning push rod 333 passes through the slot and extends into the positioning box 334, and fixes and presses the battery in the positioning box 334. Then the positioning push rod 333 is released, and the barcode scanner 345 on the transfer plate 344 is transferred to the top of the positioning box 334 and scans the battery through the third linear module 342 driving the fourth linear module 343 and the fourth linear module 343 driving the transfer plate 344, and each second driving clamp 347 transfers the battery in the positioning box 334 to the placement component 45 through the third linear module 342 driving the fourth linear module 343, the fourth linear module 343 driving the transfer plate 344, and the second pneumatic finger 346 driving.

[0055] The battery is placed on the positioning base 452, and each positioning slider 455 is pressed against the battery by the continuous force of the spring 456. The pressing surface 458 on the pressing step of each positioning slider 455 presses against the side of the battery, so as to position the battery. After the positioning is completed, the conveyor belt drives the placement component 45 to move in a circle on the work platform 2. During the movement, it first passes through the top shooting component. The top camera 612 on the top shooting component shoots and detects the top of the battery through the cooperation with the top light source 613, and then passes through each first shooting component 63. The second line scanning camera 634 on each first shooting component 63 cooperates with the second line scanning light source 633 to shoot and detect the side of each battery, and then Each edge detection component 64 is used to photograph and detect the corner edges of each battery through the cooperation of the side shooting light source 644 and the side shooting camera 643. After the detection is completed, each third pneumatic clamping plate clamps the battery, and the battery is rotated 90 degrees by the driving of the lifting plate 53 by the reversing cylinder 52 and the driving of the third pneumatic finger 55 by the rotating cylinder 54. The battery is then placed in the side groove 454 and clamped by the positioning slider 455. The conveyor belt continues to drive the battery to move, and the side of the battery is detected by each first shooting component 63, and the corner edges of the battery are photographed and detected by each edge detection component 64, so as to achieve comprehensive, efficient and accurate shooting and detection of the battery.

[0056] After the side and corner edges of the battery are inspected, the fourth pneumatic fingers 716 transfer the batteries on the display assembly 45 to the conveyor belt group through the eighth linear module 712 driving the ninth linear module 713, the ninth linear module 713 driving the tenth linear module 714, the tenth linear module 714 driving the blanking plate 715, and the fourth pneumatic fingers 716. According to the inspection results, different batteries are transferred to the qualified product conveyor belt 722 and the unqualified product conveyor belt 723 for separate unloading. The structure is ingenious and efficient and convenient.

[0057] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A power battery appearance defect detection device, comprising a frame and a working platform fixed on the frame; characterized in that: The working platform is provided with a loading station, a moving station, a reversing station, a testing station and a unloading station. The loading station is provided with a loading mechanism that can grab and load power batteries, and read and transplant them. The moving station is provided with a moving mechanism that can circularly move each battery to be tested. The reversing station is provided with a reversing mechanism that can rotate and reverse the battery. The testing station is provided with a testing mechanism that can shoot and test each side and each corner edge of the battery. The unloading station is provided with a unloading mechanism that can classify and unload the batteries after the test is completed. The mobile mechanism includes a mobile base plate fixed on the working platform, a conveyor belt running on the mobile base plate under the drive of a driving motor, an annular slide rail arranged on the mobile base plate, a plurality of sliding base plates that can slide on the annular slide rail under the drive of the conveyor belt, and a placement component arranged on each sliding base plate and capable of placing batteries. The placement component includes a fixed base fixed on the sliding base plate, a positioning base arranged on the fixed base, a positioning slide groove arranged on the positioning base, and a positioning slider relatively slidably arranged in the positioning slide groove, and side grooves are arranged on both sides of the positioning slide groove. Each positioning slider is provided with a pressing step, and the pressing steps on each positioning slider are arranged oppositely, and the pressing step is provided with a step surface flush with the upper end surface of the positioning base, and a pressing surface that can press the battery, and a spring is provided between the bottom of each positioning slide groove and the corresponding positioning slider, and the two ends of the spring act on the bottom of the groove and the positioning slider respectively, and each positioning slider presses the large side surface of the battery located in the side groove through the continuous force of each spring, and the pressing surface on each positioning slider presses the small side surface of the battery through the continuous force of each spring after the battery is reversed and rotated; After the loading mechanism loads the batteries, the mobile mechanism drives the conveyor belt through the drive motor and the conveyor belt drives each sliding bottom plate to transfer the batteries, and after the reversing mechanism changes direction and the detection mechanism detects each large side surface, small side surface, and each corner edge, the batteries enter the unloading mechanism for classification and unloading.

2. The power battery appearance defect detection device according to claim 1, characterized in that: The feeding mechanism includes a grasping component that can grasp the battery, a bottom detection component that can photograph and detect the bottom of the battery, a preliminary positioning component that can preliminarily position the battery, and a transfer component that can read and transfer the battery after the preliminary positioning. The grasping component includes a grasping bracket fixed on the working platform, a first linear module fixed on the grasping bracket, a second linear module slidably arranged on the first linear module under the drive of the first linear module, a grasping plate slidably arranged on the second linear module under the drive of the second linear module, a first pneumatic finger fixed on the grasping plate, and each pneumatic finger fixed on the first pneumatic finger. The first driving splint is provided at each driving end, the sliding direction of the second linear module is parallel to the working platform, the moving direction of the grab plate is perpendicular to the working platform, the sliding direction of each first driving splint is perpendicular to the extension direction of the first linear module, and each first driving splint grabs and transfers the battery through the driving of the second linear module by the first linear module, the driving of the grab plate by the second linear module, and the driving of the first pneumatic finger; the bottom detection component includes a bottom detection light source and a bottom detection camera fixed on the working platform, and the bottom detection camera photographs and detects the bottom of the battery by cooperating with the bottom detection light source.

3. The power battery appearance defect detection device according to claim 2, characterized in that: The preliminary positioning assembly includes a preliminary positioning bracket fixed on the working platform, a bottom linear module fixed on the preliminary positioning bracket, a positioning box fixed on the output end of the bottom linear module and capable of placing batteries, and a positioning push rod fixed on the preliminary positioning bracket. The extension direction of the bottom linear module is parallel to the extension direction of the first linear module, and the extension direction of the positioning box is the same as the extension direction of the first linear module. Both ends of the positioning box are provided with through grooves for the positioning push rod to pass through. The positioning box receives the battery on the first driving splint through the drive of the bottom linear module. When the positioning box is reset, the positioning push rod passes through the through groove and extends into the positioning box, and fixes the battery against the positioning box.

4. The power battery appearance defect detection device according to claim 2, characterized in that: The transfer component includes a transfer bracket fixed on the working platform, a third linear module fixed on the transfer bracket, a fourth linear module slidably set on the third linear module under the drive of the third linear module, a transfer plate slidably set on the fourth linear module under the drive of the fourth linear module, a scanner fixed on the transfer plate, a second pneumatic finger fixed on the transfer plate, and a second driving splint fixed on each output end of the second pneumatic finger. The extension direction of the third linear module is perpendicular to the extension direction of the first linear module. The scanner is transferred to the top of the positioning box and scans the battery through the driving of the fourth linear module on the fourth linear module and the driving of the transfer plate on the fourth linear module by the third linear module. Each second driving splint transfers the battery in the positioning box to the placement component through the driving of the fourth linear module on the fourth linear module, the driving of the transfer plate on the fourth linear module and the driving of the second pneumatic finger.

5. The power battery appearance defect detection device according to claim 4, characterized in that: The reversing mechanism includes a reversing bracket fixed on the working platform, a reversing cylinder fixed on the reversing bracket, a lifting plate fixed on the telescopic end of the reversing cylinder, a rotating cylinder fixed on the lifting plate, a third pneumatic finger fixed on the telescopic end of the rotating cylinder, and a third driving clamp fixed on each output end of the third pneumatic finger. Each third driving clamp clamps and reverses the battery through the reversing cylinder driving the lifting plate and the rotating cylinder driving the third pneumatic finger.

6. The power battery appearance defect detection device according to claim 5, characterized in that: The end surface of the lifting plate facing away from the rotating cylinder is provided with a relatively arranged limit slide bar, and the reversing bracket is provided with a guide flange corresponding to each limit slide bar, and the lifting plate is set on the reversing bracket through the cooperation of each limit slide bar and the guide flange.

7. The power battery appearance defect detection device according to claim 6, characterized in that: The detection mechanism includes a top shooting component that can shoot and detect the top of the battery, multiple side detection components that can shoot and detect each side of the battery, and multiple edge detection components that can shoot and detect each corner edge of the battery. The top shooting component includes a top surface shooting component and a top edge shooting component. The working platform is provided with a positioning platform, and the positioning platform is located above the conveyor belt. The top surface shooting component includes a first bracket fixed on the positioning platform, a top camera fixed on the first bracket and capable of shooting and detecting the top of the battery, and a top light source. The top camera cooperates with the top light source to shoot and detect the top surface of the battery. The top edge shooting component includes a second bracket fixed on the working platform and the positioning platform, a fifth linear module fixed on the second bracket and arranged in parallel with the extension direction of the fourth linear module, a first mounting plate raised and lowered on the fifth linear module under the drive of the fifth linear module, a first line scanning light source and a first line scanning camera installed on the first mounting plate, the first line scanning camera shoots and detects the edges of the top of the battery by cooperating with the first line scanning light source, the side detection components and the edge detection components are evenly distributed on the working platform and the positioning platform, and after the top shooting and detection of the battery are completed, the sides and edges of the battery are shot and detected.

8. The power battery appearance defect detection device according to claim 7, characterized in that: The side detection component includes two first shooting components that are relatively and staggered in height, and the two first shooting components are respectively arranged on the working platform and the positioning platform. The first shooting component includes a sixth linear module fixed on the working platform or the positioning platform, a first shooting bracket slidably arranged on the sixth linear module under the drive of the sixth linear module, a second line scanning camera fixed on the first shooting bracket, and a second line scanning light source. The extension direction of the sixth linear module is arranged in parallel with the extension direction of the third linear module. Each second line scanning camera located on the working platform and the positioning platform shoots and detects each side of the battery by cooperating with the second line scanning light source. A plurality of edge detection components are provided on the working platform and the positioning platform. The edge detection component includes a seventh linear module fixed on the working platform or the positioning platform, a second mounting plate slidably arranged on the seventh linear module under the drive of the seventh linear module, a second shooting bracket fixed on the second mounting plate, a side shooting light source and a side shooting camera installed on the second shooting bracket. Each side shooting camera shoots and detects each corner edge of the battery by cooperating with each corresponding side shooting light source.

9. The power battery appearance defect detection device according to claim 8, characterized in that: The unloading mechanism includes an unloading grabbing component that can grab the batteries on the display component, and a screening component that can classify the grabbed batteries. The unloading grabbing component includes an unloading bracket fixed on the working platform, an eighth linear module relatively arranged on the unloading bracket, a ninth linear module slidably arranged on the eighth linear module under the drive of the eighth linear module, a tenth linear module slidably arranged on the ninth linear module under the drive of the ninth linear module, an unloading plate arranged on the tenth linear module and raised and lowered under the drive of the tenth linear module, and a fourth air filter fixed on the unloading plate. The fourth pneumatic fingers and the fourth driving splint fixed at the output end of each fourth pneumatic finger, the extension direction of the eighth linear module is parallel to the extension direction of the first linear module, the extension direction of the ninth linear module is parallel to the extension direction of the third linear module, the extension direction of the tenth linear module is perpendicular to the working platform, and each fourth driving splint transfers the batteries on the display assembly to the screening assembly through the eighth linear module driving the ninth linear module, the ninth linear module driving the tenth linear module, the tenth linear module driving the blanking plate, and the fourth pneumatic fingers.

10. The power battery appearance defect detection device according to claim 9, characterized in that: The sub-screening assembly includes a sub-screening bracket fixed on the working platform, and a plurality of conveyor belt groups arranged on the sub-screening bracket, the conveyor belt groups include adjacent qualified product conveyor belts and unqualified product conveyor belts, the sub-screening bracket is provided with a qualified product conveying motor capable of driving the qualified product conveyor belt, and an unqualified product conveying motor capable of driving the unqualified product conveyor belt, the running directions of the qualified product conveyor belt and the unqualified product conveyor belt are arranged in parallel with the extension direction of the eighth linear module, the sub-screening bracket is also provided with a guide bracket, each guide bracket is provided with three guide rods, the extension direction of each guide rod is arranged in parallel with the extension direction of the eighth linear module, each guide rod is provided with a plurality of guide rollers uniformly distributed along the extension direction of the guide rod, the axis of each guide roller is arranged perpendicular to the working platform, and the batteries on each qualified product conveyor belt and the unqualified product conveyor belt are unloaded by the drive of the corresponding conveying motor and the guidance of each guide roller.

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