Automatic online CT (Computed Tomography) scanning imaging system for lithium battery

Abstract

The utility model provides a lithium battery automatic on-line CT scanning imaging system which comprises an anti-radiation box body, a CT detection system, a right side protective cover, a left side protective cover, a feeding mechanism and a discharging mechanism, the right side protective cover is arranged on the right side of the anti-radiation box body, the discharging mechanism is arranged on the front side of the right side protective cover, the feeding mechanism is arranged on the front side of the left side protective cover, and the right side protective cover is arranged on the right side of the anti-radiation box body. A maintenance door is arranged in front of the radiation-proof box body, a double-open maintenance door is arranged behind the radiation-proof box body, a feeding outer pneumatic door is arranged on the connecting portion of the right side and the right side protective cover, a discharging outer pneumatic door is arranged on the connecting portion of the left side and the left side protective cover, the electric cabinets are arranged at four corners of the radiation-proof box body, a feeding inner pneumatic door is arranged on the side of the feeding outer pneumatic door, and a discharging inner pneumatic door is arranged on the side of the discharging outer pneumatic door. A CT detection system is arranged in the middle of the anti-radiation box body and fixed to the marble base. According to the automatic online CT scanning imaging system for the lithium battery, the detection efficiency and the adaptability of the system are improved in a mode that battery samples are placed at double stations.

Description

Technical Field

[0001] The utility model belongs to the field of CT detection, and in particular relates to an automatic online CT scanning imaging system for a lithium battery. Background Art

[0002] The lithium battery CT scanning imaging mechanism is a device that uses computed tomography (CT) technology to detect the internal structure of lithium batteries. It uses X-ray computed tomography (CT) technology to obtain high-resolution three-dimensional images of the internal structure of lithium batteries, thereby detecting the quality of lithium batteries.

[0003] Currently, CT scanning requires rotating the battery in all directions to obtain sufficient data to reconstruct a three-dimensional image of the battery's internal structure. However, current lithium battery CT scanning systems have low detection efficiency and are difficult to adapt to products of different sizes. Utility Model Content

[0004] In view of this, the utility model aims to propose an automatic online CT scanning and imaging system for lithium batteries to solve the problems that the lithium battery CT scanning and imaging system has low detection efficiency and is difficult to adapt to products of different sizes.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the utility model is achieved as follows:

[0006] The utility model provides an automatic online CT scanning and imaging system for lithium batteries, comprising a radiation protection box, a CT detection system, a right side protective cover, a left side protective cover, a loading mechanism, and an unloading mechanism. The right side protective cover is arranged on the right side of the radiation protection box, the unloading mechanism is arranged on the front side of the right side protective cover, the loading mechanism is arranged on the front side of the left side protective cover, a maintenance door is arranged on the front of the radiation protection box, a double-opening maintenance door is arranged on the back, a feeding outer pneumatic door is arranged on the right side connecting with the right side protective cover, a discharging outer pneumatic door is arranged on the left side connecting with the left side protective cover, an electric control box is arranged at the four corners of the radiation protection box, a feeding inner pneumatic door is arranged on the side of the feeding outer pneumatic door, and a discharging inner pneumatic door is arranged on the side of the discharging outer pneumatic door, a CT detection system is arranged in the middle of the radiation protection box, and the CT detection system is fixed on a marble base.

[0007] Further, the inside of the radiation-proof box is sequentially provided with an inlet buffer, an internal inlet transfer, a CT detection system, an internal outlet transfer and an outlet buffer from right to left; the right side shield cover is internally provided with a feeding three-axis and a double-layer inlet mechanism, the inlet buffer and the outlet buffer are symmetrically arranged along the center axis of the marble base, the internal inlet transfer and the internal outlet transfer are symmetrically arranged along the center axis of the marble base, the inlet buffer is arranged at the right side of the inlet inner pneumatic door, the outlet buffer is arranged at the left side of the outlet inner pneumatic door, and the double-layer inlet mechanism is arranged at the right side of the inlet outer pneumatic door; the left side shield cover is internally provided with a double-layer outlet mechanism and a discharging three-axis, the double-layer outlet mechanism is arranged at the left side of the outlet outer pneumatic door, and the discharging three-axis is arranged at the left side of the double-layer outlet mechanism close to the feeding mechanism; the feeding mechanism comprises an outlet OK line body, an outlet NG line body and a sorting module, the sorting module is provided with a sorting transfer mechanism and a terminal vacuum assembly connected with the sorting transfer mechanism, the terminal vacuum assembly in the sorting module is used for sorting defective products to the outlet NG line body in the battery detection process, the profiled steel support in the sorting transfer mechanism is arranged at the edge of the platform of the outlet OK line body and the outlet NG line body, the outlet OK line body and the outlet NG line body are installed side by side, the sorting transfer mechanism is connected with the CT detection system and the outlet NG line body, and an inlet line body is arranged at the discharging mechanism.

[0008] Further, the feeding three-axis and the discharging three-axis are the same and symmetrical to each other, the feeding three-axis comprises an X-Y-Z three-axis transfer mechanism and a terminal vacuum assembly, and the X-Y-Z three-axis transfer mechanism is connected with the terminal vacuum assembly; in the feeding three-axis, the terminal vacuum assembly is used for sucking the battery, and the X-Y-Z three-axis transfer mechanism is used for transferring the battery to the upper side of the double-layer inlet mechanism; in the discharging three-axis, the terminal vacuum assembly is used for sucking the positioning jig with the battery, and the X-Y-Z three-axis transfer mechanism is used for transferring the battery to the sorting module, and the X-Y-Z three-axis transfer mechanism is connected with the CT detection system.

[0009] Further, the double-layer inlet mechanism and the double-layer outlet mechanism are the same in structure, the double-layer inlet mechanism comprises a support frame arranged at the lower side and a double-layer transfer module connected with the support frame, and the double-layer transfer module comprises an upper module and a lower mechanism; the inlet buffer and the outlet buffer are the same in structure, a positioning jig driven by an electric cylinder is moved along a guide shaft in the inlet buffer, and a positioning plate group is arranged at the lower part of the positioning jig; in the double-layer inlet mechanism, the double-layer transfer module is connected with the inlet outer pneumatic door; in the double-layer outlet mechanism, the double-layer transfer module is connected with the outlet buffer, the outlet outer pneumatic door, the outlet inner pneumatic door and the inlet buffer.

[0010] Furthermore, the internal material feeding and transferring structure is consistent with the internal material discharging and transferring structure; the bottom of the internal material feeding and transferring is fixed with a support frame, the lower layer transfer is fixed above the support frame, and the lower layer transfer is connected to the upper layer transfer through a rotating shaft; the internal material feeding and transferring is connected to the external pneumatic door of the feed and the internal pneumatic door of the feed.

[0011] Furthermore, the CT detection system includes a radiation source assembly, a detector assembly and two multi-axis systems. The radiation source assembly is located at the center of the marble base, the detector assembly is located directly below the radiation source assembly, and the multi-axis systems are located on the front and back sides of the marble base. The multi-axis system located on the right side of the marble base clamps the battery to be tested through the material picking claw, and the multi-axis system located on the left side clamps the tested battery through the material picking claw and passes it to the discharge transfer.

[0012] Furthermore, the multi-axis system includes a transfer X-axis, a transfer Y-axis, a transfer Z-axis, a rotating R-axis of the fine-tuning mechanism, a sample adjustment X1 axis, a sample adjustment Y1 axis, and a sample rotation R1 axis. The rotating R-axis is directly connected to the fixed plate by a motor and a reducer. The sample rotation R1 axis is driven by a motor-driven synchronous wheel to drive the synchronous belt. The transfer X-axis, the transfer Y-axis, the transfer Z-axis, the sample adjustment X1 axis, and the sample adjustment Y1 axis are all driven by a motor-driven screw to drive the fixed parts on the axis to move along the linear guide rail; the multi-axis system is connected to the external pneumatic feed door and the internal pneumatic feed door.

[0013] Compared with the existing technology, the lithium battery automatic online CT scanning imaging system described in this utility model has the following advantages:

[0014] (1) During the inspection process, the automatic online CT scanning and imaging system for lithium batteries described in the present invention keeps the radiation on throughout the entire process, and uses a transfer mechanism for transportation throughout the entire process, thereby enabling single sample inspection and multiple stacked sample inspection, so that each group of battery samples can be continuously inspected;

[0015] (2) The automatic online CT scanning imaging system for lithium batteries described in the present invention can realize batch detection of the four corners of the battery in the form of a production line. Not only can CT detection be performed on the four corners of the battery, but the rest of the battery can also be CT detected by switching the fixtures. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention.

[0017] In the attached figure:

[0018] Figure 1 This is an overall axial schematic diagram of the automatic online CT scanning and imaging system for lithium batteries according to an embodiment of the present utility model;

[0019] Figure 2 This is an enlarged schematic diagram of point B in the automatic online CT scanning imaging system for lithium batteries according to an embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram of the main view of the radiation protection box in the lithium battery automatic online CT scanning imaging system according to an embodiment of the present utility model;

[0021] Figure 4 This is a schematic diagram of the main view AA of the radiation protection box in the lithium battery automatic online CT scanning imaging system according to an embodiment of the present invention;

[0022] Figure 5 This is a schematic top view of the entire interior of the automatic online CT scanning and imaging system for lithium batteries according to an embodiment of the present utility model;

[0023] Figure 6 This is an axial schematic diagram of a sorting module in the automatic online CT scanning and imaging system for lithium batteries according to an embodiment of the present invention;

[0024] Figure 7 This is a schematic diagram of the three-axis side view of the loading system for the automatic online CT scanning and imaging of lithium batteries according to an embodiment of the present invention;

[0025] Figure 8 This is an axial schematic diagram of a double-layer feeding mechanism in the automatic online CT scanning and imaging system for lithium batteries according to an embodiment of the present invention;

[0026] Figure 9 This is a schematic diagram of the feed buffer axis side of the automatic online CT scanning and imaging system for lithium batteries according to an embodiment of the present invention;

[0027] Figure 10 This is a schematic diagram of the internal feeding and loading axis in the automatic online CT scanning and imaging system for lithium batteries according to an embodiment of the present invention;

[0028] Figure 11 This is an axial schematic diagram of a CT detection system in the automatic online CT scanning imaging system for lithium batteries according to an embodiment of the present invention;

[0029] Figure 12 This is a schematic diagram of the axial side of the multi-axis system in the lithium battery automatic online CT scanning imaging system according to an embodiment of the present invention.

[0030] Description of reference numerals:

[0031] 1. Radiation-proof box; 2. Right protective cover; 3. Left protective cover; 4. Loading mechanism; 5. Unloading mechanism; 6. Maintenance door; 7. Double-opening maintenance door; 8. External pneumatic door for feeding; 9. Internal pneumatic door for feeding; 10. Internal pneumatic door for discharging; 11. External pneumatic door for discharging; 12. Electric control box; 13. Feeding line; 14. CCD camera positioning; 15. Three-axis loading mechanism; 16. Double-layer feeding mechanism; 17. Feeding buffer; 18. Internal feeding transfer; 19. CT detection system; 20. Internal discharging transfer; 21. Discharging buffer; 22. Double-layer discharging mechanism; 23. Three-axis unloading mechanism; 24. Discharging OK line; 25. Discharging NG line ; 26. Sorting module; 28. Radiation source assembly; 29. ​​Detector assembly; 30. Multi-axis system; 31. Transfer X-axis; 32. Transfer Y-axis; 33. Transfer Z-axis; 34. Rotation R-axis; 35. Sample adjustment X1 axis; 36. Sample adjustment Y1 axis; 37. Sample rotation R1 axis; 38. Electric gripper; 39. XYZ three-axis transfer mechanism; 40. End vacuum assembly; 42. Double-layer transfer module; 43. Electric cylinder; 44. Guide shaft; 45. Positioning plate; 46. Support frame; 47. Upper-layer transfer; 48. Upper rotation axis; 49. Upper-layer transfer; 50. Positioning fixture; 51. Sorting transfer mechanism; 52. Material picking gripper. DETAILED DESCRIPTION

[0032] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0034] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, the term "installation", "link", "connection" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can pass through intermediate medium indirectly connect, can be two element inside the intercommunication.For ordinary skilled person in the art, the above-mentioned terms can be understood by the specific meaning in the utility model through specific circumstances.

[0035] The utility model will be described in detail below with reference to the drawings and in combination with embodiments.

[0036] Referring to Figures 1-12 The embodiment provides a kind of lithium battery automatic online CT scanning imaging system, radiation-proof box 1, CT detection system 19, right side shield 2, left side shield 3, feeding mechanism 4, discharging mechanism 5, right side shield 2 is located in the right side of radiation-proof box 1, discharging mechanism 5 is located in the front side of right side shield 2, feeding mechanism 4 is located in the front side of left side shield 3, the front of radiation-proof box 1 is equipped with maintenance door 6, rear is equipped with double open maintenance door 7, right side and the right side shield 2 interface part is equipped with feeding outer pneumatic door 8, left side and the left side shield 3 interface part is equipped with discharge outer pneumatic door 11, Electric control box 12 is located in the four corners of radiation-proof box 1, feeding outer pneumatic door 8 side is equipped with feeding inner pneumatic door 9, discharge outer pneumatic door 11 side is equipped with discharge inner pneumatic door 10, the middle part of radiation-proof box 1 is equipped with CT detection system 19, CT detection system 19 is fixed on marble pedestal.

[0037] Specifically, in this embodiment, the radiation protection box 1 is provided with a feed buffer 17, an internal feed transfer 18, a CT detection system 19, an internal discharge transfer 20, and a discharge buffer 21 from right to left; the right protective cover 2 is provided with a feeding three-axis 15 and a double-layer feeding mechanism 16, the feed buffer 17 and the discharge buffer 21 are symmetrically arranged with respect to the central axis of the marble base, the internal feed transfer 18 and the internal discharge transfer 20 are symmetrically arranged with respect to the central axis of the marble base, the feed buffer 17 is arranged on the right side of the feeding inner pneumatic door 9, the discharge buffer 21 is arranged on the left side of the discharge inner pneumatic door 10, and the double-layer feeding mechanism 16 is arranged on the right side of the feeding outer pneumatic door 8; the left protective cover 3 is provided with a double-layer discharge mechanism 22 and a blanking three-axis 23, the double-layer discharge mechanism 22 is arranged on the left side of the discharge outer pneumatic door 11, and the blanking three-axis 23 is arranged on the double-layer discharge mechanism 2 2 is located on the left side near the loading mechanism 4; the loading mechanism 4 includes an OK discharge line 24, an NG discharge line 25, and a sorting module 26. The sorting module 26 is provided with a sorting transfer mechanism 51 and a terminal vacuum component 40 connected to the sorting transfer mechanism 51. The terminal vacuum component 40 in the sorting module 26 is used to sort defective products in the battery inspection process to the NG discharge line 25. The steel support in the sorting transfer mechanism 51 is provided on the platform edge of the OK discharge line 24 and the NG discharge line 25. The OK discharge line 24 and the NG discharge line 25 are installed in parallel. The sorting transfer mechanism 51 is connected to the CT detection system 19 and the NG discharge line 25; a feeding line 13 is provided at the unloading mechanism 5. The battery is transmitted to the CCD camera positioning 14 through the feeding line 13. The CCD camera positioning 14 is connected to the loading three-axis 15.

[0038] Specifically, in this embodiment, the loading three-axis 15 and the unloading three-axis 23 have the same composition and are symmetrical to each other. The loading three-axis 15 includes an XYZ three-axis transfer mechanism 39 and an end vacuum component 40, and the XYZ three-axis transfer mechanism 39 is connected to the end vacuum component 40; in the loading three-axis 15, the end vacuum component 40 is used to absorb the battery, and the XYZ three-axis transfer mechanism 39 is used to transfer the battery to the top of the double-layer feeding mechanism 16; in the unloading three-axis 23, the end vacuum component 40 is used to absorb the positioning fixture 50 with the battery, and the XYZ three-axis transfer mechanism 39 is used to transfer the battery to the sorting module 26, and the XYZ three-axis transfer mechanism 39 is connected to the CT detection system 19.

[0039] Specifically, in this embodiment, the double-layer feeding mechanism 16 has the same structure as the double-layer discharging mechanism 22. The double-layer feeding mechanism 16 includes a support frame 41 provided at the bottom and a double-layer transfer module 42 connected thereto, and the double-layer transfer module 42 includes an upper module and a lower mechanism; the feeding buffer 17 has the same structure as the discharging buffer 21. The electric cylinder 43 in the feeding buffer 17 drives the lifting positioning fixture 50 to move along the guide shaft 44, and the positioning fixture 50 is composed of a positioning plate 45 at the bottom; in the double-layer feeding mechanism 16, the double-layer transfer module 42 is connected to the feeding external pneumatic door 8; in the double-layer discharging mechanism 22, the double-layer transfer module 42 is connected to the discharging buffer 21, the discharging external pneumatic door 11, the discharging internal pneumatic door 10, and the feeding buffer 17.

[0040] Specifically, in this embodiment, the internal material feeding transfer 18 has the same structure as the internal material discharging transfer 20; the support frame 46 is fixed at the bottom of the internal material feeding transfer 18, and the lower layer transfer 47 is fixed above the support frame 46, and the lower layer transfer 47 is connected to the upper layer transfer 49 through the rotating shaft 48; the internal material feeding transfer 18 is connected to the external pneumatic door 8 for feeding and the internal pneumatic door 9 for feeding.

[0041] Specifically, in this embodiment, the CT detection system 19 includes a radiation source assembly 28, a detector assembly 29 and two sets of multi-axis systems 30. The radiation source assembly 28 is arranged at the center of the marble base, the detector assembly 29 is arranged directly below the radiation source assembly 28, and the multi-axis systems 30 are arranged on the front and back sides of the marble base. The multi-axis system 30 arranged on the right side of the marble base clamps the battery to be tested through the material picking clamp 52, and the multi-axis system 30 arranged on the left side clamps the tested battery through the material picking clamp 52 and passes it to the discharge transfer 20.

[0042] Specifically, in this embodiment, the multi-axis system 30 includes a transfer X-axis 31, a transfer Y-axis 32, a transfer Z-axis 33, a rotating R-axis 34 of the fine-tuning mechanism, a sample adjustment X1 axis 35, a sample adjustment Y1 axis 36, and a sample rotation R1 axis 37. The rotating R-axis 34 is directly connected to the fixed plate by a motor and a reducer. The sample rotation R1 axis 37 is driven by a motor-driven synchronous wheel to drive the synchronous belt. The transfer X-axis 31, the transfer Y-axis 32, the transfer Z-axis 33, the sample adjustment X1 axis 35, and the sample adjustment Y1 axis 36 are all driven by a motor-driven screw to drive the fixed components on the axis to move along the linear guide rail; the multi-axis system 30 is connected to the external pneumatic feed door 8 and the internal pneumatic feed door 9.

[0043] In the embodiment, the operation process of the equipment is as follows: (1) The battery is placed on the feeding line 13 and moves with the line. After scanning the code to identify the product information, it arrives at the CCD photo positioning area 14. After the CCD takes the photo, the loading three-axis 15 guides the loading three-axis 15 to absorb the sample and automatically correct the deviation according to the position deviation of the product. (2) The loading three-axis 15 moves downward to absorb the sample, then rises and transfers the sample to the top of the double-layer feeding mechanism 16, and descends to place the sample into the positioning fixture (according to the actual setting, the sample is placed in multiple times). (3) The external pneumatic door 8 of the feed is lowered, the feed port is opened, and the upper module of the double-layer transfer module 42 in the double-layer feeding mechanism 16 moves toward the lead room, and the positioning fixture 50 (including the sample) is moved to the top of the feeding buffer 17. The feeding buffer 17 rises to lift the positioning fixture 50 (including the sample) off the upper module of the double-layer transfer module 42; at the same time, the fixture lifting module rises to lift the positioning fixture 50 (excluding the sample) to the highest point. The upper module of the double-layer transfer module 42 retracts into position, the fixture lifting module descends, and the positioning fixture 50 (without the sample) is placed on the upper module of the double-layer transfer module 42, and is positioned by the guide shaft. (4) The external pneumatic door 8 of the feed rises, the internal pneumatic door 9 of the feed descends, and the internal feed port opens. The internal feed transfer 18 moves toward the sample, the material removal clamp 52 clamps the sample, and the internal feed transfer 18 moves to the designated position in the lead room, and then the rotating shaft 48 rotates 180°; at the same time, the internal pneumatic door 9 of the feed rises, and then the external pneumatic door 8 of the feed descends. (5) The lower transfer 47 and upper transfer 49 in the internal feed transfer 18 move toward the CT detection system 19, moving the sample to the center of the electric clamp 38. The electric clamp 38 closes to clamp the sample, and the material removal clamp 52 is released. Then the multi-axis system 30 moves the sample to the position to be tested. At the same time, the pneumatic door 9 inside the feed rises, the pneumatic door 8 outside the feed falls, the lower mechanism of the double-layer transfer module 42 extends into the lead room, the feed buffer 17 falls, the positioning fixture 50 (without the sample) falls onto the lower mechanism, the lower mechanism of the double-layer transfer module 42 retracts, and the positioning fixture 50 (without the sample) returns to the waiting position. (6) The rotating R axis 34 rotates one circle to complete the CT detection of the first corner of the sample; the sample adjustment X1 axis 35, the sample adjustment Y1 axis 36, and the sample rotation R1 axis 37 adjust the positions of the remaining three corners in turn for CT detection. (7) After the sample CT inspection is completed, the multi-axis system 30 moves the sample to the unloading position; the internal discharge transfer 20 moves to the material collection position, the clamp 52 clamps the sample, the electric clamp 38 is released, the lower layer transfer 47 and the upper layer transfer 49 in the internal discharge transfer 20 retract to the specified position, the rotating shaft 48 rotates 180°, and then the lower layer transfer 47 and the upper layer transfer 49 extend (at this time the pneumatic door 10 inside the discharge is in the open state and the pneumatic door 11 outside the discharge is in the closed state), and the sample is moved to the top of the discharge buffer 21.(8) The discharge buffer 21 rises, so that the bottom of the sample contacts the positioning fixture 50 (without the sample), the sample removal clamp 52 releases the sample, the internal discharge transfer 20 retracts into the lead room, the internal discharge pneumatic door 10 rises and closes, and the external discharge pneumatic door 11 descends and opens. (9) The upper module of the double-layer transfer module 42 extends and enters the lead room, the discharge buffer 21 descends, and the positioning fixture 50 (with the sample) is placed on the upper module, and then the discharge buffer 21 continues to descend to the lowest position; the upper module of the double-layer transfer module 42 retracts, and at the same time the lower module extends, and the positioning fixture 50 (without the sample) is moved to the top of the discharge buffer 21; then the discharge buffer 21 rises to lift the positioning fixture 50 (without the sample), the lower module of the double-layer transfer module 42 retracts, the external discharge pneumatic door 11 rises and closes, and the internal discharge pneumatic door 10 descends and opens. (10) The unloading triaxial axis 23 sucks the sample that has been tested in the positioning fixture 50 (including the sample) and moves it to the discharge OK line 24, puts the sample down, and the sample moves to the unloading position along with the line; if the sample test result is NG, it is transferred to the discharge NG line 25 through the sorting module 26.

[0044] The radiation-proof box 1 is a lead room, which is also composed of several emergency stop switches and several cameras. During the inspection process of the automatic online CT scanning and imaging system for lithium batteries, the rays are turned on throughout the process, and the transfer mechanism is used for transportation throughout the transportation process, which can realize single sample inspection and multiple stacked inspection, so that each group of battery samples can be continuously inspected. The automatic online CT scanning and imaging system for lithium batteries realizes batch inspection of the four corners of the battery in the form of a production line. Not only can CT inspection of the four corners of the battery be carried out, but the rest of the battery can also be CT inspected, and the two are achieved by switching fixtures. The system is customized for lithium battery samples. The double-station placement of battery samples improves the inspection efficiency. By replacing the fixtures and changing the inspection method, the system adaptability is improved to meet different production needs.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A lithium battery automatic online CT scanning imaging system, characterized in that: The invention comprises a radiation protection box (1), a CT detection system (19), a right side protective cover (2), a left side protective cover (3), a loading mechanism (4), and a unloading mechanism (5), wherein the right side protective cover (2) is arranged on the right side of the radiation protection box (1), the unloading mechanism (5) is arranged on the front side of the right side protective cover (2), the loading mechanism (4) is arranged on the front side of the left side protective cover (3), the radiation protection box (1) is provided with a maintenance door (6) at the front and a double-opening maintenance door (7) at the back, and the right side is connected to the right side. An external pneumatic door (8) is provided at the portion where the side protective cover (2) is connected, and an external pneumatic door (11) is provided at the portion where the left side is connected to the left protective cover (3). An electric control box (12) is provided at the four corners of the radiation protection box (1). An internal pneumatic door (9) is provided at the side of the external pneumatic door (8), and an internal pneumatic door (10) is provided at the side of the external pneumatic door (11). A CT detection system (19) is provided in the middle of the radiation protection box (1), and the CT detection system (19) is fixed on a marble base.

2. The lithium battery automatic online CT scanning imaging system according to claim 1, characterized in that: The radiation protection box (1) is provided with a feed buffer (17), an internal feed transfer (18), a CT detection system (19), an internal discharge transfer (20), and a discharge buffer (21) from right to left. The right side protective cover (2) is provided with a feeding three-axis (15) and a double-layer feeding mechanism (16). The feed buffer (17) and the discharge buffer (21) are symmetrically arranged with respect to the central axis of the marble base. The internal feed transfer (18) and the internal discharge transfer (20) are symmetrically arranged with respect to the central axis of the marble base. The central axis is symmetrically arranged, the feed buffer (17) is arranged on the right side of the feed inner pneumatic door (9), the discharge buffer (21) is arranged on the left side of the discharge inner pneumatic door (10), and the double-layer feed mechanism (16) is arranged on the right side of the feed outer pneumatic door (8); the left protective cover (3) is provided with a double-layer discharge mechanism (22) and a discharge three-axis (23), the double-layer discharge mechanism (22) is arranged on the left side of the discharge outer pneumatic door (11), and the discharge three-axis (23) is arranged on the left side of the double-layer discharge mechanism (22). Close to the feeding mechanism (4); the feeding mechanism (4) includes a discharge OK line body (24), a discharge NG line body (25), and a sorting module (26); the sorting module (26) is provided with a sorting transfer mechanism (51) and a terminal vacuum component (40) connected to the sorting transfer mechanism (51); the terminal vacuum component (40) in the sorting module (26) is used to sort defective products in the battery inspection process to the discharge NG line body (25); the terminal vacuum component (40) in the sorting transfer mechanism (51) is used to sort defective products in the battery inspection process to the discharge NG line body (25); The steel support is arranged at the platform edge of the discharge OK line (24) and the discharge NG line (25). The discharge OK line (24) and the discharge NG line (25) are installed in parallel. The sorting and transferring mechanism (51) is connected to the CT detection system (19) and the discharge NG line (25). The feeding line (13) is provided at the unloading mechanism (5). The battery is transmitted to the CCD camera positioning (14) through the feeding line (13). The CCD camera positioning (14) is connected to the feeding three axes (15).

3. The lithium battery automatic online CT scanning imaging system according to claim 2, characterized in that: The loading triaxial shaft (15) and the unloading triaxial shaft (23) have the same composition and are symmetrical to each other. The loading triaxial shaft (15) includes an XYZ triaxial transfer mechanism (39) and a terminal vacuum component (40), and the XYZ triaxial transfer mechanism (39) is connected to the terminal vacuum component (40); in the loading triaxial shaft (15), the terminal vacuum component (40) is used to absorb batteries, and the XYZ triaxial transfer mechanism (39) is used to transfer batteries to the top of the double-layer feeding mechanism (16); in the unloading triaxial shaft (23), the terminal vacuum component (40) is used to absorb the positioning fixture (50) with batteries, and the XYZ triaxial transfer mechanism (39) is used to transfer batteries to the sorting module (26), and the XYZ triaxial transfer mechanism (39) is connected to the CT detection system (19).

4. The lithium battery automatic online CT scanning imaging system according to claim 2, characterized in that: The double-layer feeding mechanism (16) is consistent in structure with the double-layer discharging mechanism (22), and the double-layer feeding mechanism (16) includes a supporting frame arranged at the bottom and a double-layer transfer module (42) connected thereto, and the double-layer transfer module (42) includes an upper module and a lower mechanism; the feeding buffer (17) is consistent in structure with the discharging buffer (21), and the electric cylinder (43) in the feeding buffer (17) drives the lifting positioning fixture (50) to move along the guide shaft (44), and the lower part of the positioning fixture (50) is composed of a positioning plate (45); in the double-layer feeding mechanism (16), the double-layer transfer module (42) is connected to the feeding outer pneumatic door (8); in the double-layer discharging mechanism (22), the double-layer transfer module (42) is connected to the discharging buffer (21), the discharging outer pneumatic door (11), the discharging inner pneumatic door (10), and the feeding buffer (17).

5. The lithium battery automatic online CT scanning imaging system according to claim 2, characterized in that: The internal material feeding transfer (18) and the internal material discharging transfer (20) have the same structure; a support frame (46) is fixed at the bottom of the internal material feeding transfer (18), a lower layer transfer (47) is fixed above the support frame (46), and the lower layer transfer (47) is connected to the upper layer transfer (49) through a rotating shaft (48); the internal material feeding transfer (18) is connected to the external pneumatic door (8) and the internal pneumatic door (9).

6. The lithium battery automatic online CT scanning imaging system according to claim 2, characterized in that: The CT detection system (19) includes a ray source assembly (28), a detector assembly (29) and two sets of multi-axis systems (30). The ray source assembly (28) is located at the center of the marble base, the detector assembly (29) is located directly below the ray source assembly (28), and the multi-axis systems (30) are located on the front and back sides of the marble base. The multi-axis system (30) located on the right side of the marble base clamps the battery to be detected through the material picking claw (52), and the multi-axis system (30) located on the left side clamps the detected battery through the material picking claw (52) and transfers it to the discharge transfer (20).

7. The lithium battery automatic online CT scanning imaging system according to claim 6, characterized in that: The multi-axis system (30) includes a transfer X-axis (31), a transfer Y-axis (32), a transfer Z-axis (33), a rotating R-axis (34) of a fine-tuning mechanism, a sample adjustment X1-axis (35), a sample adjustment Y1-axis (36), and a sample rotation R1-axis (37). The rotating R-axis (34) is directly connected to a fixed plate by a motor, a reducer, and the sample rotation R1-axis (37). The motor drives a synchronous wheel to drive a synchronous belt to move. The transfer X-axis (31), the transfer Y-axis (32), the transfer Z-axis (33), the sample adjustment X1-axis (35), and the sample adjustment Y1-axis (36) are all driven by a motor to drive a lead screw to drive the fixed components on the axis to move along a linear guide rail. The multi-axis system (30) is connected to an external pneumatic door (8) for feeding and an internal pneumatic door (9) for feeding.

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