Self-adaptive detector applied to lithium battery diaphragm

Abstract

The invention relates to the technical field of optical detection, in particular to a self-adaptive detection machine applied to a lithium battery diaphragm, which comprises a main detection frame and a detection camera, a plurality of strip-shaped translation guide rails are arranged on the upper surface of the main detection frame in a staggered manner; an electric control type translation seat used for installing a detection camera is assembled in the strip-shaped translation guide rail in a sliding mode. According to the self-adaptive detection machine applied to the lithium battery diaphragm, an electrically-controlled translation seat for mounting a detection camera is slidably assembled in a strip-shaped translation guide rail, and a bottom one-to-two lens matched with the detection camera is movably assembled on the lower surface of the electrically-controlled translation seat; the bottom one-to-two lens can be automatically rotated according to the width of the diaphragm, so that the detection width of the detection camera is adjusted, the detection camera is automatically adaptive to different diaphragms, and the automation level and the applicability are greatly enhanced; and by adopting the one-to-two lens at the bottom, secondary reinspection can be carried out after initial inspection, so that the detection precision is greatly improved, and the intelligent level is improved.

Description

Technical Field

[0001] This invention relates to the field of optical inspection technology, and in particular to a self-adaptive inspection machine for lithium battery separators. Background Technology

[0002] The separator is one of the key components of a lithium battery. It physically separates the positive and negative electrodes, preventing direct contact and short circuits, provides a channel for lithium-ion transport allowing them to freely move between the electrodes during charging and discharging, and provides both mechanical support and chemical stability. It maintains the integrity of the battery structure and prevents reactions with the electrolyte, serving as a core barrier to ensure normal battery operation. Therefore, the quality of the separator directly affects the performance and safety of the lithium battery. Consequently, it is necessary to test the separator's mechanical properties, porosity, thermal properties, wettability, and chemical stability during the manufacturing process.

[0003] Currently, lithium battery separator testing machines are commonly used in the market for optical testing of separators. However, these machines simply use a linear array camera structure and a light source structure to perform a single-layer scan of the separator surface to determine its surface performance. However, because separators come in various sizes, a large number of cameras need to be prepared in advance, which greatly increases the cost. Moreover, because the cameras are arranged in a linear array, they cannot be re-tested when problems occur during the initial inspection, nor can they be adaptively adjusted according to separators of different widths. The cost of intelligent testing is relatively low. In addition, the existing equipment has a fixed structure, occupies a lot of space, and is very inconvenient to store and transport. Summary of the Invention

[0004] The technical problem this invention aims to solve is that the current diaphragm testing machine structure cannot be adjusted according to diaphragm specifications, has a low level of intelligence, occupies a large space, and is very inconvenient to store and transport.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a self-adaptive testing machine for lithium battery separators, including a main testing frame and a testing camera. The upper surface of the main testing frame is provided with a plurality of strip-shaped translation guide rails offset from each other. An electrically controlled translation base for mounting the testing camera is slidably assembled inside the strip-shaped translation guide rails. A bottom-mounted two-way lens that cooperates with the testing camera is movably assembled on the lower surface of the electrically controlled translation base. An X-shaped bottom support guide frame is movably assembled at the lower end of the main testing frame. A detachable upper guide roller is movably assembled inside the bottom support guide frame.

[0006] The electrically controlled translation base includes an inner electrically controlled lead screw, an inner guide rod, an inner adjusting seat, a longitudinal adjusting cylinder installed inside the inner adjusting seat, and an inner adjusting motor for controlling the longitudinal adjusting cylinder.

[0007] The bottom split-type lens is fixedly installed inside the lower opening of the vertical adjustment cylinder. The outer surface of the vertical adjustment cylinder has an integral ring gear. The inner adjustment motor is driven by the adjustment gear on the adjustment shaft meshing with the ring gear.

[0008] The bottom-mounted dual-lens system includes an upper main lens fixed to the lower opening of the vertically oriented adjustment cylinder, a lower first secondary lens fixed to both sides of the lower end of the upper main lens, and a lower second secondary lens.

[0009] The lower end of the main detection frame has an inwardly bent, integrally structured bottom bending guide rail.

[0010] A bottom-mounted electric control screw is installed on the bottom-bent guide rail, and a translation assembly frame is threaded inside the bottom-mounted electric control screw.

[0011] The bottom support guide frame includes a first control arm, a second control arm, a lateral support rod, a bottom support wheel, and a magnetically controlled upper assembly cover, all of which are movably mounted on the assembly shaft inside the translation assembly frame.

[0012] The magnetically controlled upper mounting cover includes a side-mounted motor movably mounted inside the first control arm and the second control arm, an external rotating seat axially fixed to the outside of the side-mounted motor, a lateral mounting cover axially fixed to the external rotating seat, and an electrically controlled locking arm mounted on the lateral mounting cover.

[0013] The lateral mounting cover has a plurality of staggered arc-shaped flip-up openings and annular adjustment grooves connected to the arc-shaped flip-up openings. An arc-shaped control groove is provided on the inner wall of the annular adjustment groove.

[0014] The electrically controlled locking arm includes an arc-shaped clamping arm hinged inside the arc-shaped flip-out opening, an annular internal gear ring for controlling the arc-shaped clamping arm, an embedded electromagnet and an iron spring installed inside the arc-shaped control groove.

[0015] The beneficial effects of this invention are: (1) The self-adaptive testing machine for lithium battery separators of the present invention has an electrically controlled translation base for mounting a testing camera that is slidably assembled inside a strip-shaped translation guide rail. A bottom one-to-two lens that cooperates with the testing camera is movably assembled on the lower surface of the electrically controlled translation base. The bottom one-to-two lens can be automatically rotated according to the width of the separator, thereby adjusting the testing width of the testing camera and making it automatically adapt to different separators. The level of automation and applicability are greatly enhanced. (2) By adopting a bottom-mounted two-in-one lens, a second inspection can be performed after the initial inspection, which greatly improves the detection accuracy and enhances the level of intelligence; (3) By movably assembling the bottom support guide frame with an X-shaped structure at the lower end of the main detection frame, it can be expanded outward when in use and contracted inward when stored, making the structure of the entire equipment adjustable and convenient for handling and storage. (4) A detachable upper guide roller is installed inside the bottom support guide frame, which can be quickly replaced as needed, making replacement convenient and reducing the cost of use; (5) The electric translation seat and the bottom support guide frame adopt linkage control, which makes the control method simpler and more convenient. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the structure of the present invention.

[0018] Figure 2 This is a schematic diagram of the internal structure of the electrically controlled translation seat in this invention.

[0019] Figure 3 This is a schematic diagram of the internal structure of the bottom bent guide rail in this invention.

[0020] Figure 4 This is a schematic diagram of the internal structure of the magnetically controlled upper assembly cover in this invention.

[0021] In the diagram: 1. Main detection frame; 2. Detection camera; 3. Strip-shaped translation guide rail; 4. Electrically controlled translation base; 5. Bottom-mounted dual-lens camera; 6. Bottom-supported material guide frame; 7. Detachable upper-mounted guide roller; 8. Bottom-mounted bending guide rail; 41. Inner electrically controlled lead screw; 42. Inner guide rod; 43. Internal adjusting base; 44. Vertically placed adjusting cylinder; 45. Inner adjusting motor; 46. Ring gear; 47. Adjusting gear; 51. Upper-mounted main lens; 52. Lower-mounted first secondary lens; 53. Lower-mounted second secondary lens; 61. First control... 62. Second control arm; 63. Lateral support rod; 64. Bottom support wheel; 65. Magnetic control upper assembly cover; 651. Side-mounted motor; 652. External rotating seat; 653. Lateral mounting cover; 654. Electrically controlled locking arm; 6531. Arc-shaped flip opening; 6532. Annular adjustment groove; 6533. Arc-shaped control groove; 6541. Arc-shaped clamping arm; 6542. Annular internal gear ring; 6543. Embedded electromagnet; 6544. Iron spring; 81. Bottom-mounted electrical control screw; 82. Translation assembly frame. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0023] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0024] Figure 1 , Figure 2 , Figure 3 and Figure 4 The self-adaptive testing machine for lithium battery separators shown includes a main testing frame 1 and a testing camera 2. The upper surface of the main testing frame 1 is provided with a plurality of strip-shaped translation guide rails 3 offset from each other. The strip-shaped translation guide rails 3 are slidably fitted with an electrically controlled translation seat 4 for mounting the testing camera 2. The lower surface of the electrically controlled translation seat 4 is movably fitted with a bottom-mounted two-way lens 5 that cooperates with the testing camera 2. The lower end of the main testing frame 1 is movably fitted with an X-shaped bottom support guide frame 6. The bottom support guide frame 6 is movably fitted with a detachable upper guide roller 7.

[0025] In order to adjust the gap between different detection cameras 2, the electrically controlled translation base 4 includes an inner electrically controlled lead screw 41, an inner guide rod 42, an inner adjusting base 43, a longitudinal adjusting cylinder 44 installed inside the inner adjusting base 43, and an inner adjusting motor 45 for controlling the longitudinal adjusting cylinder 44.

[0026] The inner electric control screw 41 rotates, driving the internal adjusting seat 43, which is threadedly fitted with it, to move and adjust along the strip-shaped translation guide rail 3. Simultaneously, it works with the inner guide rod 42 for sliding guidance, thereby controlling the translation adjustment of the detection camera 2 mounted on the internal adjusting seat 43. This allows for simultaneous adjustment based on the position of the bottom support guide frame 6, and also synchronizes the displacement of the gap between the detection cameras 2. This provides sufficient bottom clearance for the bottom-mounted dual-lens 5.

[0027] To accommodate the angle adjustment, the bottom splitter lens 5 is fixedly installed inside the lower opening of the vertical adjustment cylinder 44. The outer surface of the vertical adjustment cylinder 44 has an integrated ring gear 46, and the inner adjustment motor 45 is driven by the meshing of the adjustment gear 47 on the adjustment shaft with the ring gear 46.

[0028] To facilitate the splitting of the detection lens into two, the bottom split-lens 5 includes an upper main lens 51 fixed to the lower opening of the vertical adjustment cylinder 44, a lower first secondary lens 52 fixed to both sides of the lower end of the upper main lens 51, and a lower second secondary lens 53.

[0029] A center lens is provided at the lower end of the upper main lens 51. Side lenses that cooperate with the center lens are provided on the inner top surface of the lower first secondary lens 52 and the lower second secondary lens 53. The light brought in by the light inlet at the lower end of the lower first secondary lens 52 and the lower second secondary lens 53 is refracted to the center lens through the side lens, and then refracted upward to the detection camera 2 by the center lens.

[0030] When the diaphragm is narrow, the lower first secondary lens 52 and the lower second secondary lens 53 of the bottom split-lens 5 are arranged in the same direction as the diaphragm's movement. Then, the detection camera 2 performs a preliminary inspection through the lower first secondary lens 52 and a secondary inspection through the lower second secondary lens 53 to complete the secondary inspection. When the width of the diaphragm increases, the inner adjustment motor 45 drives the vertical adjustment cylinder 44 and the ring gear 46 to rotate through the adjustment gear 47 on the adjustment shaft. This controls the bottom split-lens 5 to flip, and the arrangement of the lower first secondary lens 52 and the lower second secondary lens 53 is flipped and misaligned, thereby expanding the detection range of the detection camera 2.

[0031] To accommodate the bottom support and guidance, the lower end of the main detection frame 1 has an inwardly bent, integrally structured bottom bending guide rail 8.

[0032] To facilitate lead screw adjustment, a bottom-mounted electrically controlled lead screw 81 is installed on the bottom bent guide rail 8, and a translation assembly frame 82 is threaded inside the bottom-mounted electrically controlled lead screw 81.

[0033] The bottom-mounted electric control screw 81 can be rotated to control the translation of the assembly frame 82 along the bottom bent guide rail 8 for translation adjustment.

[0034] To facilitate flipping, support, and guidance, the bottom support guide frame 6 includes a first control arm 61, a second control arm 62, a lateral support rod 63, a bottom support wheel 64, and a magnetically controlled upper assembly cover 65, all of which are movably mounted on the assembly axis inside the translation assembly frame 82.

[0035] The two ends of the lateral support rod 63 are respectively connected between the translation assembly frame 82 and the first control arm 61, and between the translation assembly frame 82 and the second control arm 62. The angle adjustment of the first control arm 61 and the second control arm 62 is controlled by extension and retraction. Then, the bottom support wheel 64 can support and move the bottom of the equipment. The magnetically controlled upper assembly cover 65 is used to assemble the detachable upper guide roller 7, and can also drive the detachable upper guide roller 7 to rotate.

[0036] To facilitate adjustment, the magnetically controlled upper mounting cover 64 includes a side-mounted motor 641 movably mounted inside the first control arm 61 and the second control arm 62, an external rotating seat 642 axially fixed outside the side-mounted motor 641, a lateral mounting cover 643 axially fixed on the external rotating seat 642, and an electrically controlled locking arm 644 disposed on the lateral mounting cover 643.

[0037] First, the bottom-mounted electric control screw 81 drives the translation assembly frame 82 to move to the outermost side of the bottom bending guide rail 8. Then, the detachable upper guide roller 7 is inserted into the side mounting cover 643. Next, the bottom-mounted electric control screw 81 drives the translation assembly frame 82 to move inward, inserting both ends of the detachable upper guide roller 7 into the side mounting cover 643. Finally, the electric locking arm 644 fixes the detachable upper guide roller 7 inside the side mounting cover 643. To facilitate assembly and control, the side mounting cover 643 is provided with a plurality of staggered arc-shaped flip-out openings 6431 and annular adjustment grooves 6432 connected to the arc-shaped flip-out openings 6431. An arc-shaped control groove 6433 is provided on the inner wall of the annular adjustment groove 6432.

[0038] To facilitate magnetic adjustment and flipping clamping, the electrically controlled locking arm 644 includes an arc-shaped clamping arm 6441 hinged inside the arc-shaped flipping opening 6431, an annular internal gear ring 6442 for controlling the arc-shaped clamping arm 6441, an embedded electromagnet 6443 installed inside the arc-shaped control groove 6433, and an iron spring 6444.

[0039] The embedded electromagnet 6443 is activated by power, controlling the contraction of the iron spring 6444. The iron spring 6444 then drives the control block inside the annular internal gear ring 6442 to slide along the arc-shaped control groove 6433, thereby causing the annular internal gear ring 6442 to slide and adjust along the annular adjustment groove 6432. One side of the arc-shaped clamping arm 6441 has a side gear that meshes with the annular internal gear ring 6442. The rotation of the annular internal gear ring 6442 drives the side gear to rotate synchronously, which in turn drives the arc-shaped clamping arm 6441 to flip, clamping and fixing the detachable upper guide roller 7 located inside the side mounting cover 643.

[0040] Equipment working principle (including detailed explanation of the function and mechanism of each component) This equipment is designed with "adaptive adjustment + high-precision re-inspection + retractable support" as its core design logic. It achieves efficient testing of lithium battery separators of different specifications through the collaboration of multiple components. The working principle of each core system is as follows: The detection width adaptive adjustment system consists of an electronically controlled translation mount 4 and a bottom-mounted two-in-one lens 5. The inner electric control screw 41 inside the electrically controlled translation seat 4 drives the inner adjustment seat 43 mounted on it to slide stably along the inner guide rod 42 through threaded transmission, thereby controlling the detection camera 2 mounted on the inner adjustment seat 43 to translate along the strip translation guide rail 3, realizing the initial adjustment of the distance between the detection cameras 2; at the same time, the ring gear 46 on the outer side of the vertical adjustment cylinder 44 meshes with the adjustment gear 47 on the output shaft of the inner adjustment motor 45. When the inner adjustment motor 45 is started, it can drive the vertical adjustment cylinder 44 to rotate around its own axis, thereby causing the bottom one-to-two lens 5 fixed at the lower end of the vertical adjustment cylinder 44 to flip. The bottom one-to-two lens 5 includes the upper main lens 51 (with built-in middle lens) and the lower first secondary lens 52 and the lower second secondary lens 53 (both with built-in side lenses). When the lens flips, it can change the layout angle of the lower first secondary lens 52 and the lower second secondary lens 53. With the translation of the detection camera 2, the detection width can be adaptively matched to the diaphragm of different widths.

[0041] The dual-precision assurance system of initial inspection + re-inspection relies on the special optical structure of the bottom one-to-two lens 5. When the diaphragm enters the inspection area, the LED lights on both sides of the inner wall of the main inspection frame 1 are turned on for illumination. The side lenses of the lower first secondary lens 52 and the lower second secondary lens 53 first receive the optical signal from the surface of the diaphragm and refract the signal to the central lens of the upper main lens 51. The central lens then transmits the integrated signal to the inspection camera 2. If only initial inspection is required, the inspection camera 2 compares the optical data transmitted by the lower first secondary lens 52 (initial inspection) and the lower second secondary lens 53 (re-inspection) to eliminate the risk of misjudgment in a single inspection, thus greatly improving the inspection accuracy.

[0042] Retractable support and material guiding system: The core consists of an X-shaped bottom support and material guiding frame 6 and a bottom bending guide rail 8. The bottom bending guide rail 8 at the lower end of the main detection frame 1 provides a sliding track for the translation assembly frame 82. The bottom-mounted electric control screw 81 drives the translation assembly frame 82 to translate along the bottom bending guide rail 8 through threaded transmission, thereby changing the unfolding range of the bottom support and material guiding frame 6. The first control arm 61 and the second control arm 62 of the bottom support and material guiding frame 6 are movably connected to the translation assembly frame 82 through an assembly shaft. The two ends of the lateral support rod 63 are respectively hinged to the translation assembly frame 82 and the first control arm 61, and the translation assembly frame 82 and the second control arm 62. When the control arm 62 and the lateral support rod 63 extend or retract, they can push the first control arm 61 and the second control arm 62 to rotate around the assembly axis, realizing the switching of the bottom support guide frame 6 from "expanded (use state) to "retracted (storage state)". At the same time, after the side-mounted motor 651 inside the magnetically controlled upper assembly cover 65 is started, it can drive the lateral mounting cover 653 to rotate through the external rotating seat 652, thereby driving the detachable upper guide roller 7 installed inside the lateral mounting cover 653 to rotate, providing stable power for diaphragm conveying.

[0043] Quick disassembly and locking system: Implemented by an electrically controlled locking arm 654 of a magnetically controlled upper mounting cover 65. The arc-shaped flip-up opening 6531 of the side mounting cover 653 provides flipping space for the arc-shaped clamping arm 6541, and the annular adjustment groove 6532 allows the annular internal gear ring 6542 to slide. When it is necessary to fix the detachable upper guide roller 7, the embedded electromagnet 6543 in the arc-shaped control groove 6533 is energized to generate magnetic force, attracting the iron spring 6544 to contract. The iron spring 6544 drives the annular internal gear ring 6542 to slide along the annular adjustment groove 6532. The internal gear ring 6542 meshes with the side gear on one side of the arc-shaped clamping arm 6541, thereby driving the arc-shaped clamping arm 6541 to rotate inward around the hinge point along the arc-shaped flipping opening 6531, firmly clamping the detachable upper guide roller 7 inside the side mounting cover 653; when disassembling, the embedded electromagnet 6543 is de-energized, the iron spring 6544 is reset, driving the annular internal gear ring 6542 to slide in the opposite direction, and the arc-shaped clamping arm 6541 to rotate outward, releasing the guide roller.

[0044] Linkage control logic: The inner electric control screw 41 of the electric translation seat 4 and the bottom electric control screw 81 of the bottom support guide frame 6 are linked through the same control system. When the bottom electric control screw 81 drives the translation assembly frame 82 to change the unfolded width of the bottom support guide frame 6, the inner electric control screw 41 simultaneously drives the internal adjustment seat 43 to adjust the spacing of the detection camera 2, ensuring that the detection range always matches the diaphragm conveying width. No manual adjustment is required, simplifying the operation process.

[0045] Equipment working process The working process of this equipment can be divided into four stages: "Preparation Stage → Adjustment Stage → Testing Stage → Storage Stage". The specific operation and component actions of each stage are as follows: 1. Preparation stage: Complete the installation of guide rollers and pre-deployment of support frame. Step 1: Start the bottom-mounted electric control screw 81. The bottom-mounted electric control screw 81 drives the translation assembly frame 82 to slide outward along the bottom bending guide rail 8 through the thread transmission until the translation assembly frame 82 reaches the outermost end of the bottom bending guide rail 8. At this time, the first control arm 61 and the second control arm 62 are in a natural hanging state, and the opening of the side mounting cover 653 is fully exposed.

[0046] Step 2: Manually insert one end of the detachable upper guide roller 7 into the center hole of the side mounting cover 653, then start the bottom electric control screw 81 to rotate in the opposite direction, driving the translation assembly frame 82 to slide inward along the bottom bending guide rail 8 until the other end of the detachable upper guide roller 7 is fully inserted into the center hole of the other side mounting cover 653, and both ends of the guide roller are wrapped by the side mounting cover 653.

[0047] Step 3: Activate the embedded electromagnet 6543. When the embedded electromagnet 6543 is energized, it generates magnetic force, which attracts the iron spring 6544 in the arc-shaped control groove 6533 to contract. The iron spring 6544 pulls the annular internal gear ring 6542 to slide clockwise along the annular adjustment groove 6532. The annular internal gear ring 6542 meshes with the side gear of the arc-shaped clamping arm 6541, causing the arc-shaped clamping arm 6541 to rotate inward around the hinge point along the arc-shaped flipping opening 6531 until the inner side wall of the arc-shaped clamping arm 6541 is tightly attached to the outer surface of the detachable upper guide roller 7, thus completing the locking and fixing of the guide roller.

[0048] Step 4: Activate the lateral support rod 63. The lateral support rod 63 slowly extends, pushing the first control arm 61 and the second control arm 62 to rotate outward around the assembly axis of the translation assembly frame 82 until the bottom support guide frame 6 unfolds to the preset angle (at this time, the bottom support wheel 64 contacts the ground, providing stable support for the main detection frame 1). Turn off the power source of the lateral support rod 63 and maintain the support state.

[0049] 2. Adjustment stage: Adapt testing parameters according to diaphragm width. Scenario 1: Testing narrow-gauge diaphragms (width ≤ preset threshold) Step 1: Start the inner adjustment motor 45. The inner adjustment motor 45 drives the adjustment gear 47 to rotate. The adjustment gear 47 meshes with the ring gear 46, driving the vertical adjustment cylinder 44 to rotate around the axis until the lower first sub-lens 52 and the lower second sub-lens 53 of the bottom one-to-two lens 5 are arranged in a "front and back" layout along the diaphragm travel direction (lower first sub-lens 52 in front, lower second sub-lens 53 behind). Then turn off the inner adjustment motor 45.

[0050] Step 2: Activate the inner electric control screw 41. The inner electric control screw 41 drives the inner adjusting seat 43 to slide along the inner guide rod 42, adjusting the distance between adjacent detection cameras 2 so that the detection range of the detection camera 2 just covers the width of the narrow diaphragm. Then close the inner electric control screw 41.

[0051] Scenario 2: Testing wide-gauge diaphragms (width > preset threshold) Step 1: Start the inner adjustment motor 45 to rotate in the opposite direction. The adjustment gear 47 drives the ring gear 46 and the vertical adjustment cylinder 44 to rotate in the opposite direction, so that the lower first sub-lens 52 and the lower second sub-lens 53 of the bottom one-to-two lens 5 are staggered in the left and right directions along the width of the diaphragm (the lower first sub-lens 52 is on the left and the lower second sub-lens 53 is on the right). At this time, the detection range of the two lenses overlaps and can cover the width of the wide diaphragm. Then turn off the inner adjustment motor 45.

[0052] Step 2: Simultaneously start the inner electric control screw 41 and the bottom electric control screw 81. The inner electric control screw 41 drives the detection camera 2 to move outward along the strip-shaped translation guide rail 3. The bottom electric control screw 81 drives the translation assembly frame 82 to slide slightly outward along the bottom bending guide rail 8, further expanding the unfolded width of the bottom support guide frame 6, ensuring that the diaphragm conveying path is completely aligned with the detection range. Simultaneously turn off the power source of the two screws.

[0053] 3. Testing stage: Achieving initial inspection, re-inspection, and diaphragm delivery. Step 1: Start the side-mounted motor 651. The side-mounted motor 651 drives the external rotating seat 652 to rotate. The external rotating seat 652 drives the side mounting cover 653 to rotate synchronously with the detachable upper guide roller 7. Place one end of the diaphragm to be tested on the detachable upper guide roller 7. The guide roller drives the diaphragm to be conveyed to the testing area at a uniform speed.

[0054] Step 2: Start the inspection camera 2. When the diaphragm enters the inspection area, it first passes through the inspection range of the lower first secondary lens 52. The side lens of the lower first secondary lens 52 receives the optical signals (such as defects, uneven thickness, etc.) on the surface of the diaphragm and refracts the signals to the center lens of the upper main lens 51. The center lens transmits the signals to the inspection camera 2 to complete the initial inspection. After the initial inspection, the diaphragm continues to be transported and enters the inspection range of the lower second secondary lens 53. The lower second secondary lens 53 repeats the above optical signal acquisition and transmission process, and the inspection camera 2 receives the re-inspection signal.

[0055] Step 3: The inspection camera 2 transmits the optical data of the initial inspection and re-inspection to the control system. The system compares the two sets of data. If the data are consistent (no defects or the location / size of defects are consistent), the diaphragm is deemed qualified. If the data are inconsistent (defects in the initial inspection / no defects in the re-inspection, or vice versa), the diaphragm is deemed to need to be re-examined. At the same time, the system records the location and type of defects, and the inspection is completed.

[0056] Step 4: The inspected diaphragm is conveyed to the subsequent receiving device by the detachable upper guide roller 7. If continuous inspection is required, repeat steps 1-3.

[0057] 4. Storage Phase: Shrink frame and equipment handling Step 1: Turn off the side-mounted motor 651 and the detection camera 2, and remove the remaining diaphragm from the detachable upper guide roller 7.

[0058] Step 2: When the embedded electromagnet 6543 is powered off, the iron spring 6544 returns to its original position after losing its magnetic attraction, pushing the annular inner gear ring 6542 to slide in the opposite direction along the annular adjustment groove 6532. The annular inner gear ring 6542 drives the arc-shaped clamping arm 6541 to flip outward along the arc-shaped flipping opening 6531, releasing the detachable upper guide roller 7. The guide roller is then manually removed from the side mounting cover 653.

[0059] Step 3: Initiate the retraction of the lateral support rod 63. The lateral support rod 63 pulls the first control arm 61 and the second control arm 62 to rotate inward around the assembly axis until the bottom support guide frame 6 retracts to its minimum volume (overlapping with the projection of the main detection frame 1), and then close the lateral support rod 63.

[0060] Step 4: Push the main detection frame 1, and the bottom support wheel 64 will roll to move the equipment to the designated storage location; if long-term storage is required, the brake device of the bottom support wheel 64 can be further fixed to prevent the equipment from sliding.

[0061] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A self-adaptive detection machine applied to lithium battery separator, comprising a main detection frame (1) and a detection camera (2), characterized in that: The upper surface of the main detection frame (1) is provided with a plurality of strip-shaped translation rails (3) in staggered manner, the inside of the strip-shaped translation rail (3) is slidably provided with an electric control type translation seat (4) for mounting a detection camera (2), the lower surface of the electric control type translation seat (4) is movably provided with a bottom one-to-two lens (5) matched with the detection camera (2), the lower end of the main detection frame (1) is movably provided with an X-shaped bottom supporting material guiding frame (6), and the inside of the bottom supporting material guiding frame (6) is movably provided with a detachable overlying mold guiding roller (7).

2. The self-adapting detection machine for lithium battery diaphragm according to claim 1, characterized in that: The electric control type translation seat (4) comprises an inside electric control screw rod (41) mounted in the inside of the strip-shaped translation rail (3), an inside guide rod (42), an inside adjusting seat (43), a longitudinally arranged adjusting cylinder (44) mounted in the inside of the inside adjusting seat (43), and an inside adjusting motor (45) for controlling the longitudinally arranged adjusting cylinder (44).

3. The self-adapting detection machine for lithium battery separators according to claim 2, characterized in that: The bottom one-to-two lens (5) is fixedly mounted in the inside of the lower end opening of the longitudinally arranged adjusting cylinder (44), the outside of the longitudinally arranged adjusting cylinder (44) is provided with an integral annular gear (46), and the inside adjusting motor (45) is in meshing transmission with the annular gear (46) through an adjusting gear (47) on the adjusting shaft.

4. The self-adapting detection machine for lithium battery separators according to claim 3, characterized in that: The bottom one-to-two lens (5) comprises an overlying main lens (51) fixed in the lower end opening of the longitudinally arranged adjusting cylinder (44), a lower first auxiliary lens (52) and a lower second auxiliary lens (53) fixed on both sides of the lower end of the overlying main lens (51).

5. The self-adapting detection machine for lithium battery separators according to claim 1, characterized in that: The lower end of the main detection frame (1) has an integral bottom bending guide rail (8) which is inwardly bent.

6. The self-adapting detection machine for lithium battery separators according to claim 5, characterized in that: The bottom bending guide rail (8) is provided with a bottom electric control screw rod (81), and the inside of the bottom electric control screw rod (81) is threadedly provided with a translation assembly frame (82).

7. The self-adapting detection machine for lithium battery separators according to claim 6, characterized in that: The bottom supporting material guiding frame (6) comprises a first control arm (61), a second control arm (62), a lateral support rod (63), a bottom supporting wheel (64), and a magnetic control type overlying assembly shell (65) which are movably assembled on the assembly shaft in the inside of the translation assembly frame (82).

8. The self-adapting detection machine for lithium battery separators according to claim 7, characterized in that: The magnetic control type overlying assembly shell (65) comprises a side hanging motor (651) movably mounted in the inside of the first control arm (61) and the second control arm (62), an outer rotating seat (652) axially fixed on the outside of the side hanging motor (651), a lateral installation cover (653) axially fixed on the outer rotating seat (652), and an electric control type locking arm (654) provided on the lateral installation cover (653).

9. The self-adapting detection machine for lithium battery separators according to claim 8, characterized in that: The lateral installation cover (653) is provided with a plurality of staggered arc-shaped overturning openings (6531) and annular adjusting grooves (6532) which are in communication with the arc-shaped overturning openings (6531), and the inner wall of the annular adjusting groove (6532) is provided with an arc-shaped control groove (6533).

10. The self-adapting detection machine for lithium battery separators according to claim 9, characterized in that: The electric control type locking arm (654) comprises an arc-shaped clamping arm (6541) hinged in the inside of the arc-shaped overturning opening (6531), an annular inner gear ring (6542) for controlling the arc-shaped clamping arm (6541), an embedded electromagnet (6543) mounted in the inside of the arc-shaped control groove (6533), and a ferromagnetic spring (6544).

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