Flaw detection mechanism based on new energy automobile cell shell

Abstract

The invention discloses a flaw detection mechanism based on a new energy automobile battery cell shell, and particularly relates to the technical field of battery cell shell detection.The flaw detection mechanism comprises a protective outer frame, a feeding device is arranged on one side of the protective outer frame, and a bottom withdrawing device is arranged at the bottom of the side, away from the feeding device, of the protective outer frame; a feeding device is fixedly installed at the top end of the bottom withdrawing device, a top withdrawing device is fixedly installed at the top end of the bottom withdrawing device, a detection device is arranged in the protective outer frame, the detection device is located between the feeding device and the top withdrawing device, and the detection device is located above the bottom withdrawing device. And a plurality of flaw detection pieces are used cooperatively to carry out comprehensive and automatic eddy current flaw detection on a plurality of new energy automobile battery cell shells, and position marking is synchronously carried out on unqualified new energy automobile battery cell shells, so that subsequent repair processing of the new energy automobile battery cell shells is facilitated, and the eddy current flaw detection efficiency of the new energy automobile battery cell shells is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of cell shell detection, and particularly to a flaw detection mechanism for a new energy vehicle cell shell. Background Technique

[0002] The cell shell of a new energy vehicle is an important part of the battery system, mainly used to protect the battery cells, and at the same time provide mechanical strength and thermal management. Most of the cell shells of new energy vehicles are made of aluminum alloy materials, and the structure of the cell shell of a new energy vehicle is mostly an aluminum alloy frame structure. When processing and producing the cell shell of a new energy vehicle, it is necessary to perform flaw detection on the cell shell to timely detect defects that may cause safety hazards, such as cracks, bubbles or metal fatigue, and prevent accidents such as short circuits, fires or explosions caused by these defects; Traditional flaw detection of the cell shell of a new energy vehicle mostly uses an eddy current flaw detector to detect the cell shell. The unqualified cell shells detected by the eddy current flaw detector need to be sorted manually, and the unqualified positions cannot be marked, which affects the subsequent repair and processing of the cell shell. For this reason, we propose a flaw detection mechanism for a new energy vehicle cell shell to solve the above problems. Summary of the Invention

[0003] The purpose of the present invention is to provide a flaw detection mechanism for a new energy vehicle cell shell to solve the problems raised in the above background technique.

[0004] To achieve the above purpose, the present invention provides the following technical solution: A flaw detection mechanism for a new energy vehicle cell shell, including a protective outer frame. One side of the protective outer frame is provided with a feeding device, and the bottom of the side of the protective outer frame away from the feeding device is provided with a bottom retracting device. The top of the bottom retracting device is fixedly installed with a top retracting device. A detection device is arranged in the protective outer frame. The detection device is located between the feeding device and the top retracting device, and the detection device is above the bottom retracting device. A positioning device is arranged on one side of the top of the feeding device close to the protective outer frame; The detection device includes an installation cross frame, the installation cross frame is fixedly installed on one side of the inner wall of the protective outer frame, and a plurality of flaw detection components are fixedly installed on the top of the installation cross frame. A material control component is arranged at the end of the flaw detection component away from the installation cross frame.

[0005] Preferably, the material control member includes a mounting longitudinal frame which is fixedly installed on the inner upper wall of the protective outer frame on the side away from the mounting transverse frame. A rotating horizontal shaft is rotatably installed at the bottom of the mounting longitudinal frame. One end of the rotating horizontal shaft is fixedly installed with a rotating bracket. A group of top conveying side frames are fixedly installed at the top end of the rotating bracket. A plurality of top conveying rollers evenly distributed are rotatably installed between the two top conveying side frames. A group of bottom conveying side frames are fixedly installed at the bottom end of the rotating bracket. A plurality of bottom conveying rollers evenly distributed are rotatably installed between the two bottom conveying side frames. Protective sleeves are movably sleeved on the outer sides of the top conveying rollers and the bottom conveying rollers. A sprocket transmission group is arranged in one of the bottom conveying side frames. The sprocket transmission group includes sprockets. There are a plurality of sprockets corresponding to the bottom conveying rollers. Chains are meshed and connected to the outer sides of the plurality of sprockets. The sprockets are respectively fixedly installed at the shaft ends of the corresponding bottom conveying rollers. A second motor is fixedly installed at the side end of the other bottom conveying side frame. The driving end of the second motor is fixedly installed with the shaft end of one of the bottom conveying rollers.

[0006] Preferably, the flaw detection member includes a linear electric rail which is fixedly installed at the top end of the mounting transverse frame. The driving end of the linear electric rail is fixedly installed with a mounting support. A detection insertion tube is fixedly installed on the mounting support. An eddy current flaw detector probe is fixedly installed at the end of the detection insertion tube away from the mounting support. A rotating frame is rotatably installed at the end of the detection insertion tube close to the eddy current flaw detector probe. A mounting seat is fixedly installed on one side of the outer wall of the rotating frame close to the eddy current flaw detector probe. A paint spraying conduit is fixedly installed on the mounting seat. One end of the paint spraying conduit is fixedly installed with a paint spraying head. A stabilizing seat is fixedly installed on the side of the paint spraying conduit away from the paint spraying head. The stabilizing seat is fixedly installed on the outside of the rotating frame. A pump head is fixedly installed at the end of the paint spraying conduit away from the paint spraying head. An inner ring frame is arranged on the side of the pump head away from the paint spraying conduit. An outer ring frame is arranged on the side of the inner ring frame away from the pump head. The outer ring frame is fixedly installed on the outside of the detection insertion tube. A sealing rotating member is fixedly clamped inside the outer ring frame. The inner ring frame is fixedly installed in the sealing rotating member. A connecting pipe is fixedly installed on the side of the inner ring frame away from the outer ring frame. One end of the connecting pipe away from the inner ring frame is fixedly installed with the pump head. A connecting head is fixedly installed on the side of the outer ring frame away from the inner ring frame.

[0007] Preferably, a paint spraying branch pipe is fixedly installed at the end of the connecting head away from the outer ring frame. A clamping seat is fixedly installed on the side of the detection insertion tube close to the mounting support. The end of the paint spraying branch pipe away from the connecting head is fixedly installed on the clamping seat.

[0008] Preferably, a worm gear is fixedly installed at the end of the rotating horizontal shaft away from the rotating bracket. A worm is meshed and connected to the outside of the worm gear. The worm is rotatably installed on the outside of the mounting longitudinal frame. A first motor is fixedly installed on one side of the outer wall of the mounting longitudinal frame close to the worm. The driving end of the first motor is fixedly installed with the top end of the worm.

[0009] Preferably, a toothed ring is fixedly sleeved in the middle of the outer side of the rotating frame. A gear is meshed and connected to the bottom of the toothed ring. A driving horizontal shaft is fixedly installed in the middle of the gear. One end of the detection insertion tube close to the rotating frame is fixedly installed with a rotating seat. The driving horizontal shaft is rotatably installed at the bottom of the rotating seat. A third motor is fixedly installed on the outer side of the rotating seat. The driving end of the third motor and one end of the driving horizontal shaft are fixedly installed.

[0010] Preferably, the feeding device includes two symmetrically distributed transportation side frames. One end of the transportation side frame extends into the protective outer frame. Both ends of the two transportation side frames are rotatably installed with transportation rollers. A transportation belt is movably sleeved on the outer sides of the two transportation rollers. A fourth motor is fixedly installed at one end of one of the transportation side frames. The driving end of the fourth motor and the shaft end of one of the transportation rollers are fixedly installed.

[0011] Preferably, the positioning device includes a positioning side frame and a plurality of positioning push frames. The positioning side frame is fixedly installed on one side of the top of one of the transportation side frames in the feeding device close to the protective outer frame. The plurality of positioning push frames are located on one side of the top of the other transportation side frame close to the protective outer frame. Cylinder brackets are provided at the bottom ends of the positioning push frames. The cylinder brackets are fixedly installed on one side of the side end of the other transportation side frame close to the protective outer frame. A telescopic cylinder is fixedly installed on the top of the cylinder bracket. The driving end of the telescopic cylinder and the corresponding positioning push frame are fixedly installed.

[0012] Preferably, the structure of the bottom retracting device is the same as that of the feeding device. One end of the transportation side frame in the bottom retracting device extends into the protective outer frame. One end of the transportation side frame in the feeding device is fixedly installed on one side of the top of the transportation side frame in the bottom retracting device.

[0013] Preferably, the structure of the top retracting device is the same as that of the feeding device. One end of the transportation side frame in the top retracting device extends into the protective outer frame. The upper surface of the transportation belt in the top retracting device is flush with the upper surface of the transportation belt in the feeding device. The transportation belts in the feeding device and the top retracting device correspond to the positions of the plurality of bottom conveying rollers. One end of the transportation side frame in the top retracting device is fixedly installed on the top of the transportation side frame in the bottom retracting device.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. By setting up the detection device, a plurality of new energy vehicle battery cell cases are transported, and a plurality of flaw detection components are used to perform a comprehensive and automatic eddy current flaw detection on the plurality of new energy vehicle battery cell cases, and at the same time, the positions of the unqualified new energy vehicle battery cell cases are marked, which is convenient for the subsequent repair and processing of the new energy vehicle battery cell cases, and effectively improves the eddy current flaw detection efficiency of the new energy vehicle battery cell cases.

[0015] 2. By setting the material control part and cooperating with the bottom ejection device and the top ejection device, the unqualified new energy vehicle battery cell cases can be directly transported to the lower bottom ejection device, realizing the random automatic sorting and discharging of unqualified new energy vehicle battery cell cases and the classified transportation of qualified new energy vehicle battery cell cases, further improving the processing efficiency of new energy vehicle battery cell cases.

[0016] 3. By setting the positioning device to assist in pushing and positioning the new energy vehicle battery cell cases, the new energy vehicle battery cell cases can be aligned, facilitating the subsequent flaw detection of the new energy vehicle battery cell cases. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a schematic structural diagram of the present invention.

[0019] Figure 2 It is a connection schematic diagram of some structures in the present invention.

[0020] Figure 3 It is a connection schematic diagram of the protective outer frame and the detection device in the present invention.

[0021] Figure 4 It is a connection schematic diagram of the material control part and the flaw detection part in the present invention.

[0022] Figure 5 It is a schematic structural diagram of the material control part in the present invention.

[0023] Figure 6 It is the present invention Figure 5 An enlarged view of part A in the present invention.

[0024] Figure 7 It is a schematic structural diagram of the flaw detection part in the present invention.

[0025] Figure 8 It is the present invention Figure 7 An enlarged view of part B in the present invention.

[0026] Figure 9 It is a partial connection schematic diagram of the flaw detection part in the present invention.

[0027] Figure 10 It is a connection schematic diagram of the feeding device and the positioning device in the present invention.

[0028] Figure 11 For the present invention Figure 10 An enlarged view of part A in the present invention.

[0029] Figure 12 For the present invention Figure 10 An enlarged view of part B in the present invention.

[0030] In the figure: 1. Protective outer frame; 2. Feeding device; 3. Bottom retracting device; 4. Top retracting device; 5. Detection device; 6. Positioning device; 51. Installation cross frame; 7. Material control part; 8. Flaw detection part; 71. Installation longitudinal frame; 72. Rotating horizontal shaft; 721. Worm gear; 722. Worm; 723. First motor; 73. Rotating bracket; 74. Top conveyor side frame; 75. Bottom conveyor side frame; 76. Top conveyor roller; 77. Bottom conveyor roller; 701. Protective sleeve; 78. Sprocket drive group; 79. Second motor; 81. Linear electric rail; 82. Installation support; 83. Detection insertion tube; 831. Clamping seat; 84. Eddy current flaw detector probe; 85. Rotating frame; 851. Installation seat; 852. Stabilizing seat; 853. Tooth ring; 854. Gear; 8541. Driving horizontal shaft; 8542. Rotating seat; 855. Third motor; 86. Paint spraying duct; 861. Paint spraying head; 862. Pump head; 87. Inner ring frame; 871. Connecting pipe; 88. Outer ring frame; 881. Connecting head; 882. Paint spraying branch pipe; 89. Sealed rotating part; 21. Conveyor side frame; 22. Conveyor roller; 221. Fourth motor; 23. Conveyor belt; 61. Positioning side frame; 62. Positioning push frame; 63. Cylinder support; 64. Telescopic cylinder. Detailed implementation manners

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] Embodiment: As Figures 1-12 shown, the present invention provides a flaw detection mechanism based on a new energy vehicle battery cell shell, including a protective outer frame 1. One side of the protective outer frame 1 is provided with a feeding device 2. The bottom of the side of the protective outer frame 1 away from the feeding device 2 is provided with a bottom retracting device 3. The top of the bottom retracting device 3 is fixedly installed with a top retracting device 4. A detection device 5 is arranged in the protective outer frame 1. The detection device 5 is located between the feeding device 2 and the top retracting device 4. The detection device 5 is located above the bottom retracting device 3. One side of the top of the feeding device 2 close to the protective outer frame 1 is provided with a positioning device 6; The detection device 5 includes an installation cross-frame 51, which is fixedly installed on one side of the inner wall of the protective outer frame 1. A plurality of flaw detection components 8 are fixedly installed at the top of the installation cross-frame 51. A material control component 7 is provided at one end of the flaw detection component 8 away from the installation cross-frame 51. The material control component 7 includes an installation longitudinal frame 71, which is fixedly installed on the inner upper wall of the protective outer frame 1 on the side away from the installation cross-frame 51. A rotating horizontal shaft 72 is rotatably installed at the bottom of the installation longitudinal frame 71. One end of the rotating horizontal shaft 72 is fixedly installed with a rotating bracket 73. A group of top conveyor side frames 74 are fixedly installed at the top of the rotating bracket 73. A plurality of top conveyor rollers 76 evenly distributed are rotatably installed between the two top conveyor side frames 74. A group of bottom conveyor side frames 75 are fixedly installed at the bottom of the rotating bracket 73. A plurality of bottom conveyor rollers 77 evenly distributed are rotatably installed between the two bottom conveyor side frames 75. One end of the rotating horizontal shaft 72 away from the rotating bracket 73 is fixedly installed with a worm gear 721. The outer side of the worm gear 721 is meshed and connected with a worm 722. The worm 722 is rotatably installed on the outer side of the installation longitudinal frame 71. A first motor 723 is fixedly installed on one side of the outer wall of the installation longitudinal frame 71 close to the worm 722. The driving end of the first motor 723 and the top of the worm 722 are fixedly installed. By controlling the first motor 723 to start and drive the worm 722 to drive the worm gear 721 to rotate, the rotating horizontal shaft 72 and the rotating bracket 73 are driven to rotate, so as to control the plurality of top conveyor rollers 76 and the plurality of bottom conveyor rollers 77 to rotate, and make the plurality of top conveyor rollers 76 and the plurality of bottom conveyor rollers 77 in an inclined state. Protective sleeves 701 are movably sleeved on the outer sides of the top conveyor rollers 76 and the bottom conveyor rollers 77. A sprocket transmission group 78 is provided in one of the bottom conveyor side frames 75. The sprocket transmission group 78 includes sprockets. There are a plurality of sprockets corresponding to the bottom conveyor rollers 77. The outer sides of the plurality of sprockets are meshed and connected with a chain. The sprockets are respectively fixedly installed at the shaft ends of the corresponding bottom conveyor rollers 77. A second motor 79 is fixedly installed at the side end of the other bottom conveyor side frame 75. The driving end of the second motor 79 and the shaft end of one of the bottom conveyor rollers 77 are fixedly installed. By controlling the second motor 79 to start and drive one of the bottom conveyor rollers 77 to rotate, and cooperating with the transmission of the sprocket transmission group 78, the plurality of bottom conveyor rollers 77 are driven to rotate synchronously to convey the new energy vehicle battery cell cases between the plurality of top conveyor rollers 76 and the plurality of bottom conveyor rollers 77.

[0033] The flaw detection component 8 includes a linear electric rail 81, which is fixedly installed at the top of the installation cross frame 51. A driving end of the linear electric rail 81 is fixedly installed with an installation support 82. An inspection insertion tube 83 is fixedly installed on the installation support 82. One end of the inspection insertion tube 83 away from the installation support 82 is fixedly installed with an eddy current flaw detector probe 84. After the new energy vehicle battery cell case is transported between multiple top conveying rollers 76 and multiple bottom conveying rollers 77 in the corresponding material control component 7, the linear electric rail 81 is controlled to drive the installation support 82 to translate, so that the inspection insertion tube 83 drives the eddy current flaw detector probe 84 to translate and insert into the corresponding new energy vehicle battery cell case. The eddy current flaw detector probe 84 performs eddy current flaw detection on the new energy vehicle battery cell case from the inside of the new energy vehicle battery cell case. In cooperation with the transmission of the new energy vehicle battery cell case between multiple top conveying rollers 76 and multiple bottom conveying rollers 77, the eddy current flaw detector probe 84 performs a comprehensive and automatic eddy current flaw detection on the new energy vehicle battery cell case. And by arranging multiple flaw detection components 8, a comprehensive and automatic eddy current flaw detection can be performed on multiple new energy vehicle battery cell cases, effectively improving the eddy current flaw detection efficiency of the new energy vehicle battery cell case; A rotating frame 85 is rotatably installed at one end of the inspection insertion tube 83 close to the eddy current flaw detector probe 84. An installation seat 851 is fixedly installed on one side of the outer wall of the rotating frame 85 close to the eddy current flaw detector probe 84. A paint spraying conduit 86 is fixedly installed on the installation seat 851. One end of the paint spraying conduit 86 is fixedly installed with a paint spraying head 861. A stabilizing seat 852 is fixedly installed on the side of the paint spraying conduit 86 away from the paint spraying head 861. The stabilizing seat 852 is fixedly installed on the outside of the rotating frame 85. A pump head 862 is fixedly installed at one end of the paint spraying conduit 86 away from the paint spraying head 861. An inner ring frame 87 is arranged on the side of the pump head 862 away from the paint spraying conduit 86. An outer ring frame 88 is arranged on the side of the inner ring frame 87 away from the pump head 862. The outer ring frame 88 is fixedly installed on the outside of the inspection insertion tube 83. A sealing rotating member 89 is fixedly clamped inside the outer ring frame 88. The inner ring frame 87 is fixedly installed in the sealing rotating member 89. By arranging the sealing rotating member 89, when the inner ring frame 87 rotates, it does not affect the seal between the inner ring frame 87 and the outer ring frame 88. A connecting pipe 871 is fixedly installed on the side of the inner ring frame 87 away from the outer ring frame 88. One end of the connecting pipe 871 away from the inner ring frame 87 is fixedly installed with the pump head 862. A connecting head 881 is fixedly installed on the side of the outer ring frame 88 away from the inner ring frame 87; A toothed ring 853 is fixedly sleeved on the middle part of the outer side of the rotating frame 85. A gear 854 is meshed and connected to the bottom of the toothed ring 853. A driving horizontal shaft 8541 is fixedly installed in the middle of the gear 854. A rotating seat 8542 is fixedly installed at one end of the detection insertion tube 83 close to the rotating frame 85. The driving horizontal shaft 8541 is rotatably installed at the bottom of the rotating seat 8542. A third motor 855 is fixedly installed on the outer side of the rotating seat 8542. The driving end of the third motor 855 and one end of the driving horizontal shaft 8541 are fixedly installed. By controlling the opening of the third motor 855, the driving horizontal shaft 8541 is controlled to drive the gear 854 to drive the toothed ring 853 to rotate, thereby controlling the rotation of the rotating frame 85, driving the paint spraying head 861 to rotate, changing the paint spraying angle of the paint spraying head 861, and facilitating automatic paint spraying and marking at any position on the inner wall of the new energy vehicle battery cell case. A paint spraying branch pipe 882 is fixedly installed at one end of the connecting head 881 away from the outer ring frame 88. A clamping seat 831 is fixedly installed on one side of the detection insertion tube 83 close to the installation support 82. The end of the paint spraying branch pipe 882 away from the connecting head 881 is fixedly installed on the clamping seat 831. During use, the end of the paint spraying branch pipe 882 in multiple flaw detection parts 8 is connected to the output port of the paint guiding pump machine. The paint guiding pump machine and the pump head 862 in the corresponding flaw detection part 8 are controlled to be turned on. The marking paint passes through the paint spraying branch pipe 882, the connecting head 881, the outer ring frame 88, the inner ring frame 87, the connecting pipe 871 and the paint spraying conduit 86 in the corresponding flaw detection part 8 and is introduced into the corresponding paint spraying head 861, and is sprayed out through the paint spraying head 861, and is sprayed on the unqualified flaw detection position on the inner wall of the new energy vehicle battery cell case, automatically marking the unqualified flaw detection position of the new energy vehicle battery cell case, facilitating the subsequent repair and processing of the new energy vehicle battery cell case, and improving the overall processing efficiency of the new energy vehicle battery cell case.

[0034] The feeding device 2 includes two symmetrically distributed transportation side frames 21. One end of the transportation side frame 21 extends into the protective outer frame 1. Transportation rollers 22 are rotatably installed at both ends of the two transportation side frames 21. A transportation belt 23 is movably sleeved on the outer sides of the two transportation rollers 22. A fourth motor 221 is fixedly installed at the end of one of the transportation side frames 21. The driving end of the fourth motor 221 and the shaft end of one of the transportation rollers 22 are fixedly installed. During use, multiple new energy vehicle battery cell cases to be flaw detected are freely placed on the transportation belt 23. By controlling the opening of the fourth motor 221 to drive one of the transportation rollers 22 to rotate, the transportation belt 23 is controlled to transport, thereby driving multiple new energy vehicle battery cell cases to be flaw detected to be automatically transported, and gradually transporting the new energy vehicle battery cell cases into the protective outer frame 1.

[0035] The positioning device 6 includes a positioning side frame 61 and a plurality of positioning push frames 62. The positioning side frame 61 is fixedly installed on one side of the top of one of the transport side frames 21 in the feeding device 2 close to the protective outer frame 1. The plurality of positioning push frames 62 are located on one side of the top of the other transport side frame 21 close to the protective outer frame 1. Cylinder brackets 63 are provided at the bottom ends of the positioning push frames 62. The cylinder brackets 63 are fixedly installed on one side of the side end of the other transport side frame 21 close to the protective outer frame 1. A telescopic cylinder 64 is fixedly installed at the top of the cylinder bracket 63. The driving end of the telescopic cylinder 64 is fixedly installed with the corresponding positioning push frame 62. When the new energy vehicle battery cell case is transported to the positions of the plurality of positioning push frames 62, the corresponding plurality of telescopic cylinders 64 are controlled to be turned on, driving the corresponding plurality of positioning push frames 62 to perform translational sliding, so that the new energy vehicle battery cell case is pushed flat onto the positioning side frame 61, assisting in pushing and positioning the new energy vehicle battery cell case, and straightening the new energy vehicle battery cell case, facilitating subsequent flaw detection of the new energy vehicle battery cell case.

[0036] The structure of the bottom retracting device 3 is the same as that of the feeding device 2. One end of the transport side frame 21 in the bottom retracting device 3 extends into the protective outer frame 1. One end of the transport side frame 21 in the feeding device 2 is fixedly installed on one side of the top of the transport side frame 21 in the bottom retracting device 3. By controlling the fourth motor 221 in the bottom retracting device 3, one of the transport rollers 22 is driven to rotate, and then the transport belt 23 in the bottom retracting device 3 is controlled to be transmitted.

[0037] The structure of the top retracting device 4 is the same as that of the feeding device 2. One end of the transport side frame 21 in the top retracting device 4 extends into the protective outer frame 1. The upper surface of the transport belt 23 in the top retracting device 4 is flush with the upper surface of the transport belt 23 in the feeding device 2. The transport belts 23 in the feeding device 2 and the top retracting device 4 correspond to the positions of the plurality of bottom transport rollers 77. One end of the transport side frame 21 in the top retracting device 4 is fixedly installed on the top of the transport side frame 21 in the bottom retracting device 3. By controlling the fourth motor 221 in the top retracting device 4, one of the transport rollers 22 is driven to rotate, and then the transport belt 23 in the top retracting device 4 is controlled to be transmitted.

[0038] Working principle: During use, the end of the paint spraying branch pipe 882 in the plurality of flaw detection parts 8 is connected to the output port of the paint guiding pump machine. The plurality of new energy vehicle battery cell cases to be flaw detected are freely placed on the transport belt 23. By controlling the fourth motor 221 to drive one of the transport rollers 22 to rotate, the transport belt 23 is controlled to be transmitted, thereby driving the plurality of new energy vehicle battery cell cases to be flaw detected to be automatically transmitted, and gradually transporting the new energy vehicle battery cell cases into the protective outer frame 1; When the new energy vehicle battery cell housing is transported to the positions of multiple positioning push frames 62, control the corresponding multiple telescopic cylinders 64 to be activated, drive the corresponding multiple positioning push frames 62 to perform translational sliding, push the new energy vehicle battery cell housing flat onto the positioning side frame 61, assist in pushing and positioning the new energy vehicle battery cell housing, and straighten the new energy vehicle battery cell housing. Subsequently, control the multiple telescopic cylinders 64 again to drive the corresponding multiple positioning push frames 62 to perform reverse translational sliding; After the new energy vehicle battery cell housing is straightened, continue to transport multiple new energy vehicle battery cell housings, so that the new energy vehicle battery cell housings are sequentially transported into the protective outer frame 1 and transported between multiple top conveying rollers 76 and multiple bottom conveying rollers 77 in the corresponding material control member 7. During this period, control the second motor 79 to be activated to drive one of the bottom conveying rollers 77 to rotate. With the transmission of the sprocket transmission group 78, drive the multiple bottom conveying rollers 77 to rotate synchronously, and convey the new energy vehicle battery cell housing between the multiple top conveying rollers 76 and the multiple bottom conveying rollers 77 until multiple new energy vehicle battery cell housings are transported between the multiple top conveying rollers 76 and the multiple bottom conveying rollers 77 in the multiple material control members 7, and perform automatic feeding of multiple new energy vehicle battery cell housings; Subsequently, control the linear electric rail 81 to be activated to drive the mounting seat 82 to perform translation, so that the detection insertion tube 83 drives the eddy current flaw detector probe 84 to translate and insert into the corresponding new energy vehicle battery cell housing. Through the eddy current flaw detector probe 84 from the inside of the new energy vehicle battery cell housing, perform eddy current flaw detection on the new energy vehicle battery cell housing. With the transmission of the new energy vehicle battery cell housing between the multiple top conveying rollers 76 and the multiple bottom conveying rollers 77, the eddy current flaw detector probe 84 performs comprehensive automatic eddy current flaw detection on the new energy vehicle battery cell housing. And by setting multiple flaw detection members 8, comprehensive automatic eddy current flaw detection can be performed on multiple new energy vehicle battery cell housings, effectively improving the eddy current flaw detection efficiency of the new energy vehicle battery cell housing; When one of the new energy vehicle battery cell housings is detected as unqualified, immediately, control the paint pump machine and the pump head 862 in the corresponding flaw detection member 8 inside the new energy vehicle battery cell housing to be activated. The marking paint is introduced into the corresponding paint spray head 861 through the paint spray branch pipe 882, the connector 881, the outer ring frame 88, the inner ring frame 87, the connecting pipe 871, and the paint spray conduit 86 in the corresponding flaw detection member 8, and is sprayed out through the paint spray head 861, and sprayed on the unqualified position of the inner wall flaw detection of the new energy vehicle battery cell housing, automatically marking the unqualified position of the new energy vehicle battery cell housing flaw detection, which is convenient for subsequent repair and processing of the new energy vehicle battery cell housing; After marking is completed, control is used to activate the linear electric rail 81 to drive the mounting support 82 for reverse translation and reset. Subsequently, control the first motor 723 in the material control part 7 at the position of the unqualified new energy vehicle battery cell case to drive the worm 722 to drive the worm wheel 721 to rotate, thereby driving the rotating horizontal shaft 72 and the rotating bracket 73 to rotate, and then controlling the multiple top rollers 76 and the multiple bottom rollers 77 to rotate, so that the multiple top rollers 76 and the multiple bottom rollers 77 are in an inclined state. Subsequently, control the second motor 79 at this position to drive the multiple bottom rollers 77 to rotate synchronously again, and convey the new energy vehicle battery cell case between the multiple top rollers 76 and the multiple bottom rollers 77, directly convey the unqualified new energy vehicle battery cell case to the bottom discharge device 3 below, and convey it through the conveyor belt 23 in the bottom discharge device 3; Subsequently, immediately reset the states of the multiple top rollers 76 and the multiple bottom rollers 77 at this position; The remaining qualified new energy vehicle battery cell cases are sequentially conveyed to the top discharge device 4 under the conveying action of the multiple bottom rollers 77, and conveyed through the conveyor belt 23 in the top discharge device 4, so as to realize the immediate automatic sorting and discharging of the unqualified new energy vehicle battery cell cases and the classified transportation of the qualified new energy vehicle battery cell cases, further improving the processing efficiency of the new energy vehicle battery cell cases.

[0039] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flaw detection mechanism based on a new energy vehicle battery cell shell, comprising a protective outer frame (1), characterized in that: One side of the protective outer frame (1) is provided with a feeding device (2), the bottom of the side of the protective outer frame (1) far from the feeding device (2) is provided with a bottom retracting device (3), the top of the bottom retracting device (3) is fixedly installed with a top retracting device (4), a detection device (5) is arranged in the protective outer frame (1), the detection device (5) is located between the feeding device (2) and the top retracting device (4), the detection device (5) is located above the bottom retracting device (3), and a positioning device (6) is arranged on one side of the top of the feeding device (2) close to the protective outer frame (1); The detection device (5) includes a mounting cross frame (51), the mounting cross frame (51) is fixedly installed on one side of the inner wall of the protective outer frame (1), multiple flaw detection components (8) are fixedly installed at the top of the mounting cross frame (51), and a material control component (7) is arranged at one end of the flaw detection component (8) far from the mounting cross frame (51).

2. The flaw detection mechanism for a new energy vehicle battery cell case according to claim 1, characterized in that: The material control component (7) includes a mounting longitudinal frame (71), the mounting longitudinal frame (71) is fixedly installed on one side of the inner upper wall of the protective outer frame (1) far from the mounting cross frame (51), a rotating horizontal shaft (72) is rotatably installed at the bottom of the mounting longitudinal frame (71), a rotating bracket (73) is fixedly installed at one end of the rotating horizontal shaft (72), a group of top conveying side frames (74) are fixedly installed at the top of the rotating bracket (73), a plurality of top conveying rollers (76) evenly distributed are rotatably installed between the two top conveying side frames (74), a group of bottom conveying side frames (75) are fixedly installed at the bottom end of the rotating bracket (73), a plurality of bottom conveying rollers (77) evenly distributed are rotatably installed between the two bottom conveying side frames (75), protective sleeves (701) are movably sleeved on the outer sides of the top conveying rollers (76) and the bottom conveying rollers (77), a sprocket transmission group (78) is arranged in one of the bottom conveying side frames (75), the sprocket transmission group (78) includes sprockets, a plurality of sprockets corresponding to the bottom conveying rollers (77) are provided, chains are meshed and connected to the outer sides of the plurality of sprockets, the sprockets are respectively fixedly installed at the shaft ends of the corresponding bottom conveying rollers (77), and a second motor (79) is fixedly installed at the side end of the other bottom conveying side frame (75), and the driving end of the second motor (79) is fixedly installed with the shaft end of one of the bottom conveying rollers (77).

3. The flaw detection mechanism based on the battery cell case of a new energy vehicle according to claim 1, wherein: The flaw detection and inspection component (8) includes a linear electric rail (81), the linear electric rail (81) is fixedly installed at the top of the installation cross-frame (51), a mounting seat (82) is fixedly installed at the driving end of the linear electric rail (81), a detection insertion tube (83) is fixedly installed on the mounting seat (82), an eddy current flaw detector probe (84) is fixedly installed at one end of the detection insertion tube (83) away from the mounting seat (82), a rotating frame (85) is rotatably installed at one end of the detection insertion tube (83) close to the eddy current flaw detector probe (84), a mounting seat (851) is fixedly installed on one side of the outer wall of the rotating frame (85) close to the eddy current flaw detector probe (84), a paint spraying conduit (86) is fixedly installed on the mounting seat (851), a paint spraying head (861) is fixedly installed at one end of the paint spraying conduit (86), a stabilizing seat (852) is fixedly installed on one side of the paint spraying conduit (86) away from the paint spraying head (861), the stabilizing seat (852) is fixedly installed on the outside of the rotating frame (85), a pump head (862) is fixedly installed at one end of the paint spraying conduit (86) away from the paint spraying head (861), an inner ring frame (87) is arranged on one side of the pump head (862) away from the paint spraying conduit (86), an outer ring frame (88) is arranged on one side of the inner ring frame (87) away from the pump head (862), the outer ring frame (88) is fixedly installed on the outside of the detection insertion tube (83), a sealing rotating member (89) is fixedly clamped inside the outer ring frame (88), the inner ring frame (87) is fixedly installed in the sealing rotating member (89), a connecting pipe (871) is fixedly installed on one side of the inner ring frame (87) away from the outer ring frame (88), one end of the connecting pipe (871) away from the inner ring frame (87) is fixedly installed with the pump head (862), and a connecting head (881) is fixedly installed on one side of the outer ring frame (88) away from the inner ring frame (87).

4. A flaw detection mechanism based on a new energy vehicle battery cell shell according to claim 3, characterized in that: A paint spraying branch pipe (882) is fixedly installed at one end of the connecting head (881) away from the outer ring frame (88), a clamping seat (831) is fixedly installed on one side of the detection insertion tube (83) close to the mounting seat (82), and one end of the paint spraying branch pipe (882) away from the connecting head (881) is fixedly installed on the clamping seat (831).

5. The flaw detection mechanism based on a new energy vehicle battery cell shell according to claim 2, wherein: A worm gear (721) is fixedly installed at one end of the rotating horizontal shaft (72) away from the rotating bracket (73), a worm (722) is meshed and connected to the outside of the worm gear (721), the worm (722) is rotatably installed on the outside of the installation vertical frame (71), a first motor (723) is fixedly installed on one side of the outer wall of the installation vertical frame (71) close to the worm (722), and the driving end of the first motor (723) is fixedly installed with the top of the worm (722).

6. The flaw detection mechanism based on a new energy vehicle battery cell case according to claim 3, characterized in that: A toothed ring (853) is fixedly sleeved on the middle part of the outer side of the rotating frame (85). A gear (854) is meshed and connected to the bottom of the toothed ring (853). A driving horizontal shaft (8541) is fixedly installed in the middle of the gear (854). A rotating seat (8542) is fixedly installed at one end of the detection insertion tube (83) close to the rotating frame (85). The driving horizontal shaft (8541) is rotatably installed at the bottom of the rotating seat (8542). A third motor (855) is fixedly installed on the outer side of the rotating seat (8542). The driving end of the third motor (855) and one end of the driving horizontal shaft (8541) are fixedly installed.

7. The flaw detection mechanism based on a new energy vehicle battery cell shell according to claim 2, characterized in that: The feeding device (2) includes two symmetrically distributed transport side frames (21). One end of the transport side frame (21) extends into the protective outer frame (1). Transport rollers (22) are rotatably installed at both ends of the two transport side frames (21). A transport belt (23) is movably sleeved on the outer sides of the two transport rollers (22). A fourth motor (221) is fixedly installed at the end of one of the transport side frames (21). The driving end of the fourth motor (221) and the shaft end of one of the transport rollers (22) are fixedly installed.

8. The flaw detection mechanism based on a new energy vehicle battery cell shell according to claim 7, characterized in that: The positioning device (6) includes a positioning side frame (61) and a plurality of positioning push frames (62). The positioning side frame (61) is fixedly installed on one side of the top of one of the transport side frames (21) in the feeding device (2) close to the protective outer frame (1). The plurality of positioning push frames (62) are located on one side of the top of the other transport side frame (21) close to the protective outer frame (1). Cylinder brackets (63) are provided at the bottoms of the positioning push frames (62). The cylinder brackets (63) are fixedly installed on one side of the side end of the other transport side frame (21) close to the protective outer frame (1). A telescopic cylinder (64) is fixedly installed on the top of the cylinder bracket (63). The driving end of the telescopic cylinder (64) and the corresponding positioning push frame (62) are fixedly installed.

9. The flaw detection mechanism based on the battery cell case of a new energy vehicle according to claim 7, characterized in that: The structure of the bottom retreat device (3) is the same as that of the feeding device (2). One end of the transport side frame (21) in the bottom retreat device (3) extends into the protective outer frame (1). One end of the transport side frame (21) in the feeding device (2) is fixedly installed on one side of the top of the transport side frame (21) in the bottom retreat device (3).

10. A flaw detection mechanism based on a new energy vehicle battery cell shell according to claim 9, characterized in that: The structure of the top retreat device (4) is the same as that of the feeding device (2). One end of the transport side frame (21) in the top retreat device (4) extends into the protective outer frame (1). The upper surface of the transport belt (23) in the top retreat device (4) is flush with the upper surface of the transport belt (23) in the feeding device (2). The transport belts (23) in the feeding device (2) and the top retreat device (4) correspond to the positions of the plurality of bottom transport rollers (77). One end of the transport side frame (21) in the top retreat device (4) is fixedly installed on the top of the transport side frame (21) in the bottom retreat device (3).

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