Lithium battery CT scanning imaging mechanism

Abstract

The utility model provides a lithium battery CT scanning imaging mechanism which comprises a rotary feeding mechanism, a rotary discharging mechanism, a radiation source assembly, a marble base, a detector assembly, a right side multi-axis transferring mechanism and a left side multi-axis transferring mechanism. The rotary feeding mechanism and the rotary discharging mechanism are symmetrically placed with the central axis in the width direction of the marble base as the center, the right side multi-axis transferring mechanism and the left side multi-axis transferring mechanism are symmetrically installed on the marble base with the central axis in the length direction of the marble base as the center, and the ray source assembly directly faces the central position of the marble base. A plurality of rectangular grooves are formed in the bottom of the marble base, and rectangular adjusting sizing blocks are installed in the rectangular grooves. The lithium battery CT scanning imaging mechanism improves the detection efficiency, adapts to products of different sizes by replacing the clamping jaw at the tail end, and can be compatible with CT detection of four corners, positive and negative electrode tabs and a large surface of a battery.

Description

Technical Field

[0001] The utility model belongs to the field of CT detection, and in particular relates to a lithium battery CT scanning imaging mechanism. 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 a full rotation scan of the battery to obtain sufficient data to reconstruct a three-dimensional image of the battery's internal structure. As a result, lithium battery inspection efficiency is low for large or high-capacity lithium batteries and it is difficult to adapt to products of different sizes. Utility Model Content

[0004] In view of this, the present invention aims to propose a lithium battery CT scanning imaging mechanism to solve the problems of low lithium battery detection efficiency and difficulty in adapting 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 a lithium battery CT scanning imaging mechanism, comprising a rotary loading mechanism, a rotary unloading mechanism, a ray source assembly, a marble base, a detector assembly, a right-side multi-axis transfer mechanism, and a left-side multi-axis transfer mechanism; the rotary loading mechanism and the rotary unloading mechanism are symmetrically placed with the central axis in the width direction of the marble base as the center, the right-side multi-axis transfer mechanism and the left-side multi-axis transfer mechanism are symmetrically installed on the marble base with the central axis in the length direction of the marble base as the center, the ray source assembly is directly opposite to the center position of the marble base, a plurality of rectangular grooves are provided at the bottom of the marble base, and rectangular adjustment shims are installed in the rectangular grooves.

[0007] Furthermore, the rotary loading mechanism includes a bottom frame, an adjustment mechanism, a lower-layer transfer mechanism, a rotating mechanism, an upper-layer transfer mechanism, and an end clamping mechanism. The four corners of the bottom frame are connected to the adjustment mechanism, the lower-layer transfer mechanism is fixed on the upper part of the bottom frame, the lower-layer transfer mechanism is connected to the upper-layer transfer mechanism through the rotating mechanism, and the end clamping mechanism is symmetrically fixed on the upper part of the upper-layer transfer mechanism about its central axis; the rotary loading mechanism and the rotary unloading mechanism have the same structure.

[0008] Furthermore, the lower-level transfer mechanism includes a first motor, a first screw rod, and a first slide rail. The first motor controls the first screw rod to drive the rotating mechanism fixed to it to move along the first slide rail; the rotating mechanism includes a second motor, a servo rotating platform, a rotating drag chain, and a fixed plate. The second motor controls the rotation of the servo rotating platform. The control cable passes through the rotating drag chain and locks the fixed plate at the top. The fixed plate is connected to the bottom of the upper-level transfer mechanism; the third motor in the upper-level transfer mechanism controls the linear module to drive the end clamping mechanism to move; the electric clamp and the machined parts in the end clamping mechanism are connected.

[0009] Furthermore, the radiation source assembly includes a fixed frame, a radiation source and a protective light curtain. The protective light curtain is fixed on the fixed frame and includes an upper fixed frame and a side fixed frame. The upper fixed frame is hollow inside and is used to fix the radiation source. The side fixed frame is connected to the front and back faces of the upper fixed frame. The protective light curtain is fixed inside the side fixed frame, and the protective light curtain is connected to the second motor in the rotating mechanism.

[0010] Furthermore, the detector assembly includes a fixed frame and a height adjustment mechanism. The height adjustment mechanism drives the screw to rotate through a belt, driving the movable plate connected to the screw nut to slide along the first guide rail. The height adjustment mechanism is fixed on the fixed frame, and the center of the movable plate is opposite to the center of the ray source of the ray source assembly.

[0011] Furthermore, the internal structure of the right-side multi-axis transfer mechanism is consistent with that of the left-side multi-axis transfer mechanism; the right-side multi-axis transfer mechanism includes a transfer X-axis, a transfer Y-axis, a transfer Z-axis, a fine-tuning mechanism rotation R-axis, a sample rotation center adjustment X1 axis, a sample rotation center adjustment Y1 axis, a sample clamping rotation mechanism, and an electric clamp; the transfer X-axis, the transfer Y-axis, the transfer Z-axis, the sample rotation center adjustment X1 axis, and the sample rotation center adjustment Y1 axis are all driven by a motor to move the lead screw, so that the parts fixed on the corresponding axis move along the linear guide rail connected to the bottom sliding connection; the fine-tuning mechanism rotation R-axis drives the sample rotation clamping rotation mechanism to rotate as a whole through the fourth motor; the electric clamp in the sample clamping rotation mechanism is connected through a stepper motor, and the stepper motor drives the synchronous wheel to rotate and drives the rotating axis at the electric clamp through the synchronous belt.

[0012] Compared with the existing technology, the lithium battery CT scanning imaging mechanism described in this utility model has the following advantages:

[0013] (1) The CT scanning imaging mechanism for lithium batteries described in this invention places the radiation source and detector perpendicular to a marble base (ground), and the battery sample rotates. By placing battery samples in two workstations, samples at both workstations can be inspected simultaneously, thereby improving inspection efficiency. By replacing the end grippers, it can accommodate products of different sizes. This mechanism is compatible with CT inspection of battery corners, positive and negative tabs, and large surfaces. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] 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.

[0015] In the attached figure:

[0016] Figure 1 This is an overall axial schematic diagram of the lithium battery CT scanning imaging mechanism according to an embodiment of the present invention;

[0017] Figure 2 This is a schematic diagram of the axial connection between the marble base and the adjustment pad in the lithium battery CT scanning imaging mechanism according to an embodiment of the present invention;

[0018] Figure 3 This is an axial schematic diagram of the rotary feeding mechanism in the lithium battery CT scanning imaging mechanism according to an embodiment of the present utility model;

[0019] Figure 4 This is an axial schematic diagram of the radiation source assembly in the lithium battery CT scanning imaging mechanism according to an embodiment of the present invention;

[0020] Figure 5 This is an axial schematic diagram of a detector assembly in a lithium battery CT scanning imaging mechanism according to an embodiment of the present invention;

[0021] Figure 6 This is a schematic axial view of the right-side multi-axis transfer mechanism in the lithium battery CT scanning imaging mechanism described in an embodiment of the present utility model.

[0022] Description of reference numerals:

[0023] 1. Rotating loading mechanism; 2. Rotating unloading mechanism; 3. X-ray source assembly; 4. Marble base; 5. Detector assembly; 6. Multi-axis transfer mechanism on the right side; 7. Multi-axis transfer mechanism on the left side; 8. Bottom frame; 9. Adjustment mechanism; 10. Lower-layer transfer mechanism; 11. Rotation structure; 12. Upper-layer transfer mechanism; 13. End clamping mechanism; 14. Electric clamping jaw; 15. First fixed frame; 16. X-ray source; 17. Protective light curtain; 18. Second fixed frame; 19. Height adjustment mechanism; 20. Transfer X-axis; 21. Transfer Y-axis; 22. Transfer Z-axis; 23. Rotation R-axis; 24. Sample rotation center adjustment X1 axis; 25. Sample rotation center adjustment Y1 axis; 26. Sample clamping and rotating mechanism; 27. Stepper motor; 28. Adjustment shim. DETAILED DESCRIPTION

[0024] 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.

[0025] 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.

[0026] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0027] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0028] See Figure 1-6As shown, this embodiment provides a lithium battery CT scanning imaging mechanism, including a rotary loading mechanism 1, a rotary unloading mechanism 2, a radiation source assembly 3, a marble base 4, a detector assembly 5, a right-side multi-axis transfer mechanism 6, and a left-side multi-axis transfer mechanism 7; the rotary loading mechanism 1 and the rotary unloading mechanism 2 are symmetrically placed with the central axis in the width direction of the marble base 4 as the center, the right-side multi-axis transfer mechanism 6 and the left-side multi-axis transfer mechanism 7 are symmetrically installed on the marble base 4 with the central axis in the length direction of the marble base 4 as the center, the radiation source assembly 3 is directly opposite to the center position of the marble base 4, and a plurality of rectangular grooves are provided at the bottom of the marble base 4, and rectangular adjustment shims 28 are installed in the rectangular grooves.

[0029] In the embodiment, six adjustment shims are installed under the marble base 4 to adjust the overall level of the detection mechanism.

[0030] Specifically, in this embodiment, the rotary loading mechanism 1 includes a bottom frame 8, an adjustment mechanism 9, a lower-layer transfer mechanism 10, a rotating mechanism 11, an upper-layer transfer mechanism 12, and an end clamping mechanism 13. The four corners of the bottom frame 8 are connected to the adjustment mechanism 9. The lower-layer transfer mechanism 10 is fixed on the upper part of the bottom frame 8. The lower-layer transfer mechanism 10 is connected to the upper-layer transfer mechanism 12 through the rotating mechanism 11. The end clamping mechanism 13 is symmetrically fixed on the upper part of the upper-layer transfer mechanism 12 about its central axis; the rotary loading mechanism 1 and the rotary unloading mechanism 2 have the same structure.

[0031] Specifically, in this embodiment, the lower-level transfer mechanism 10 includes a first motor, a first screw rod, and a first slide rail. The first motor controls the first screw rod to drive the rotating mechanism 11 fixed to it to move along the first slide rail; the rotating mechanism 11 includes a second motor, a servo rotating platform, a rotating drag chain, and a fixed plate. The second motor controls the rotation of the servo rotating platform, and the control cable passes through the rotating drag chain, locking the fixed plate at the top, and the fixed plate is connected to the bottom of the upper-level transfer mechanism 12; the third motor in the upper-level transfer mechanism 12 controls the linear module to drive the end clamping mechanism 13 to move; the electric clamp 14 in the end clamping mechanism 13 is connected to the machined parts.

[0032] Specifically, in this embodiment, the radiation source assembly 3 includes a fixed frame 15, a radiation source 16 and a protective light curtain 17. The protective light curtain 17 is fixed on the fixed frame 15 and includes an upper fixed frame and a side fixed frame. The upper fixed frame is hollow inside and is used to fix the radiation source 16. The side fixed frame is connected to the front and back faces of the upper fixed frame. The protective light curtain 17 is fixed inside the side fixed frame, and the protective light curtain 17 is connected to the second motor in the rotating mechanism 11.

[0033] In the embodiment, the function of the protective light curtain 17 is to stop the system when the corner of the battery exceeds the safe position during rotation, thereby avoiding collision with the radiation source 16 .

[0034] Specifically, in this embodiment, the detector assembly 5 includes a fixed frame 18, a height adjustment mechanism 19, the height adjustment mechanism 19 drives the moving plate connected with the screw nut to slide along the first guide rail by driving the screw rod through the belt, and the height adjustment mechanism 19 is fixed on the fixed frame 18, and the center of the moving plate is opposite to the center of the ray source 16 of the ray source assembly 3.

[0035] The height adjustment mechanism 19 is used for adjusting the SDD (ray source to detector distance) and the SOD (ray source to detection object distance), so as to accurately control the irradiation area of the rays, improve the detection accuracy and reliability, and thus adapt to different detection requirements.

[0036] Specifically, in this embodiment, the right multi-axis transfer mechanism 6 and the left multi-axis transfer mechanism 7 have the same internal structure; the right multi-axis transfer mechanism 6 includes a transfer X-axis 20, a transfer Y-axis 21, a transfer Z-axis 22, a fine adjustment mechanism rotating R-axis 23, a sample rotating center adjustment X1-axis 24, a sample rotating center adjustment Y1-axis 25, a sample clamping rotating mechanism 26, and an electric clamp jaw 14; the transfer X-axis 20, the transfer Y-axis 21, the transfer Z-axis 22, the sample rotating center adjustment X1-axis 24, and the sample rotating center adjustment Y1-axis 25 are driven by the motor to drive the screw rod to move, so that the components fixed on the corresponding shafts move along the linear guide rail connected at the bottom; the fine adjustment mechanism rotating R-axis 23 drives the sample clamping rotating mechanism 26 to rotate as a whole through the fourth motor; the electric clamp jaw 14 in the sample clamping rotating mechanism 26 is connected through the stepping motor 27, and the stepping motor 27 drives the synchronous wheel to rotate and drives the rotating shaft at the electric clamp jaw 14 to move through the synchronous belt.

[0037] Device operation process: step 1: in the rotating feeding mechanism 1, the battery is clamped by the end clamp jaw mechanism 13 and is in the state of just taking the material. The lower transfer mechanism 10 and the upper transfer mechanism 12 are retracted at the same time to reach the rotating safety position (a position where other components will not be touched during the rotating process, which is also the initial rotating position), the rotating mechanism 11 rotates 180°, and then the lower transfer mechanism 10 and the upper transfer mechanism 12 are extended at the same time to send the battery to the clamping intermediate position of the sample clamping rotating mechanism 26.

[0038] Step 2: the electric clamp jaw 14 in the sample clamping rotating mechanism 26 is closed and clamped; the electric clamp jaw 14 in the end clamp jaw mechanism 13 is loosened. The lower transfer mechanism 10 and the upper transfer mechanism 12 in the rotating feeding mechanism 1 are retracted to the rotating position at the same time (which is the position after the rotating mechanism 11 rotates 180° from the rotating safety position in step 1), the rotating mechanism 11 rotates 180° to prepare for the next clamping (at this time, the rotating mechanism 11 returns to the position of taking the material in step 1, and the end clamp jaw mechanism 13 is in the state of waiting for clamping).

[0039] Step 3: The right multi-axis transfer mechanism 6 and the left multi-axis transfer mechanism 7 are moved to the detection position by the transfer X-axis 20, the transfer Y-axis 21, and the transfer Z-axis 22. At the same time, the sample rotation center adjustment X1 axis 24 and the sample rotation center adjustment Y1 axis 25 adjust the point of the battery to be inspected and the rotation center of the fine-tuning mechanism rotation R axis 23 to the same straight line.

[0040] Step 4: The fine-tuning mechanism rotates the R-axis 23 and starts to rotate 360° to complete the detection of the first point of the battery; then the stepper motor in the sample clamping rotation mechanism 26 rotates 90°, and at the same time the sample rotation center adjusts the X1 axis 24 and the sample rotation center adjusts the Y1 axis 25 to adjust the second point of the battery to be inspected and the rotation center of the fine-tuning mechanism rotating R-axis 23 to the same straight line, and the fine-tuning mechanism rotating R-axis 23 rotates 360° to complete the detection of the second point of the battery; according to needs, this mechanism can continuously detect multiple points of the battery.

[0041] Step 5: After the battery inspection is completed, the right multi-axis transfer mechanism 6 and the left multi-axis transfer mechanism 7 move the battery to the unloading position through multi-axis transfer.

[0042] Step 6: The lower transfer mechanism 10 and the upper transfer mechanism 12 in the rotary unloading mechanism 2 extend simultaneously, the end clamping mechanism 13 reaches the battery position, the electric clamping jaws 14 close, clamping the battery, and the electric clamping jaws 14 in the sample clamping rotation mechanism 26 release. Then, the lower transfer mechanism 10 and the upper transfer mechanism 12 simultaneously retract to the safe position, and the rotary mechanism 11 rotates 180° to deliver the battery to the unloading position.

[0043] The lithium battery CT scanning imaging mechanism places the radiation source and detector perpendicular to a marble base (the floor), while the battery sample rotates. Dual-station battery sample placement allows simultaneous testing of samples at both locations, improving inspection efficiency. The end grippers can be interchanged to accommodate products of varying sizes. This mechanism is compatible with CT inspection of battery corners, positive and negative tabs, and large surfaces.

[0044] 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 CT scanning imaging mechanism, characterized in that: The invention comprises a rotary loading mechanism (1), a rotary unloading mechanism (2), a ray source assembly (3), a marble base (4), a detector assembly (5), a right multi-axis transfer mechanism (6), and a left multi-axis transfer mechanism (7); the rotary loading mechanism (1) and the rotary unloading mechanism (2) are symmetrically placed with the central axis in the width direction of the marble base (4) as the center, the right multi-axis transfer mechanism (6) and the left multi-axis transfer mechanism (7) are symmetrically installed on the marble base (4) with the central axis in the length direction of the marble base (4) as the center, the ray source assembly (3) is directly opposite to the center position of the marble base (4), and a plurality of rectangular grooves are provided at the bottom of the marble base (4), and rectangular adjustment pads (28) are installed in the rectangular grooves.

2. The lithium battery CT scanning imaging mechanism according to claim 1, characterized in that: The rotary loading mechanism (1) comprises a bottom frame (8), an adjustment mechanism (9), a lower-layer transfer mechanism (10), a rotation mechanism (11), an upper-layer transfer mechanism (12), and an end clamping mechanism (13); the four corners of the bottom frame (8) are connected to the adjustment mechanism (9); the lower-layer transfer mechanism (10) is fixed to the upper portion of the bottom frame (8); the lower-layer transfer mechanism (10) is connected to the upper-layer transfer mechanism (12) through the rotation mechanism (11); the end clamping mechanism (13) is fixed to the upper portion of the upper-layer transfer mechanism (12) symmetrically about its central axis; the rotary loading mechanism (1) and the rotary unloading mechanism (2) have the same structure.

3. The lithium battery CT scanning imaging mechanism according to claim 2, characterized in that: The lower-layer transfer mechanism (10) includes a first motor, a first screw rod, and a first slide rail. The first motor controls the first screw rod to drive the rotating mechanism (11) fixed thereto to move along the first slide rail. The rotating mechanism (11) includes a second motor, a servo rotating platform, a rotating drag chain, and a fixed plate. The second motor controls the rotation of the servo rotating platform. The control cable passes through the rotating drag chain and locks the fixed plate at the top. The fixed plate is connected to the bottom of the upper-layer transfer mechanism (12). The third motor in the upper-layer transfer mechanism (12) controls the linear module to drive the end clamping mechanism (13) to move. The electric clamping mechanism (14) in the end clamping mechanism (13) is connected to the machined part.

4. The lithium battery CT scanning imaging mechanism according to claim 1, characterized in that: The ray source assembly (3) includes a fixed frame (15), a ray source (16) and a protective light curtain (17). The protective light curtain (17) is fixed on the fixed frame (15) and includes an upper fixed frame and a side fixed frame. The upper fixed frame is hollow inside and is used to fix the ray source (16). The side fixed frames are connected to the front and back surfaces of the upper fixed frame. The protective light curtain (17) is fixed inside the side fixed frames. The protective light curtain (17) is connected to the second motor in the rotating mechanism (11).

5. The lithium battery CT scanning imaging mechanism according to claim 1, characterized in that: The detector assembly (5) includes a fixed frame and a height adjustment mechanism (19). The height adjustment mechanism (19) drives a screw to rotate via a belt, driving a movable plate connected to a screw nut to slide along a first guide rail. The height adjustment mechanism (19) is fixed to the fixed frame, and the center of the movable plate faces the center of the ray source (16) of the ray source assembly (3).

6. The lithium battery CT scanning imaging mechanism according to claim 1, characterized in that: The right multi-axis transfer mechanism (6) has the same internal structure as the left multi-axis transfer mechanism (7); the right multi-axis transfer mechanism (6) includes a transfer X-axis (20), a transfer Y-axis (21), a transfer Z-axis (22), a fine-tuning mechanism rotation R-axis (23), a sample rotation center adjustment X1 axis (24), a sample rotation center adjustment Y1 axis (25), a sample clamping rotation mechanism (26), and an electric clamp (14); the transfer X-axis (20), the transfer Y-axis (21), the transfer Z-axis (22), the sample rotation center adjustment The entire X1 axis (24) and the sample rotation center adjustment Y1 axis (25) are driven by a motor to move the lead screw, so that the fixed parts on the corresponding axis move along the linear guide rail connected to the bottom sliding connection; the fine-tuning mechanism rotates the R axis (23) through the fourth motor to drive the sample rotation clamping rotation mechanism (26) to rotate as a whole; the electric clamping jaws (14) in the sample clamping rotation mechanism (26) are connected through a stepping motor (27), and the stepping motor (27) drives the synchronous wheel to rotate and drives the rotating axis at the electric clamping jaws (14) to move through the synchronous belt.

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