PTFE membrane micropore defect detection equipment based on machine vision

Abstract

The invention relates to the technical field of PTFE (polytetrafluoroethylene) membrane micropore defect detection, in particular to PTFE membrane micropore defect detection equipment based on machine vision, which comprises symmetrically arranged mounting side plates and sensor assemblies arranged on one sides of the mounting side plates at intervals, and an overturning assembly used for realizing driving is arranged between the two groups of mounting side plates. Adjusting assemblies are arranged on the outer side of the overturning assembly in an array mode, and detection modules used for detecting PTFE membrane micropore defects are arranged on the outer sides of the adjusting assemblies. And the adjusting assembly comprises clamping frames arrayed on the outer side of the overturning assembly, bent plates are symmetrically arranged on the sides, close to the overturning assembly, of the clamping frames, and quick connecting rods are installed on the inner walls of the bent plates at intervals up and down. The device has the beneficial effects that high-resolution imaging is carried out by adopting the intelligent sensor, the white light interferometer and the high-speed line scanning camera, micro-current detection is realized in combination with weak current released by the discharge piece, micropore defects can be accurately identified, and misjudgment or missing detection caused by a single detection mode is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of PTFE membrane micropore defect detection, in particular to a PTFE membrane micropore defect detection device based on machine vision. Background Art

[0002] PTFE (polytetrafluoroethylene) membranes are widely used in medical, filtration, electronics and other fields, and their microporous structure directly affects performance. Microporous defect detection is a key link in ensuring quality. Existing microporous defect detection cannot adapt to the switching detection of single membranes and continuous membranes at the same time, and existing detection devices only use microcurrent detection methods for detection. No intelligent sensors are designed during the detection process, which leads to low accuracy of the test results. At the same time, the expansion of PTFE itself is not taken into account, and there are certain disadvantages when using it.

[0003] For example: The Chinese utility model patent (application number: CN201821248937.0) discloses a "film micropore defect detection system", and its specification discloses: a large number of films with various functions have been widely used. As an important material, films occupy an increasingly important position in the field of materials. With the continuous improvement of plastic processing and modification technology, the application field has expanded rapidly. Different application fields have increasingly enhanced requirements for plastic materials, surface decoration and bonding properties. In order to improve the appearance of the plastic surface and extend the service life of the plastic, various treatments need to be performed on the surface of the plastic parts. In the production process of the film, micropore defects may occur in the film due to various reasons. Therefore, film micropore defect detection has become a basic item for checking film defects. The existing patent number CN102539482A mentions a technology that squeezes a flexible conductive layer into micropores, makes electrical contact with another conductor, achieves conductivity, and measures the current changes generated in the circuit to detect micropore defects in the film. In this patented technology, a flexible material is squeezed into the micropores for testing, which will cause extrusion and friction on the film, causing damage to the surface of the film, and no external output signal. There is no corresponding feedback when micropores are detected, and timely control cannot be made when micropores are detected.

[0004] Therefore, we made improvements to this and proposed a PTFE membrane micropore defect detection device based on machine vision. Summary of the Invention

[0005] The purpose of the present invention is to provide a PTFE membrane micropore defect detection device based on machine vision to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: comprising symmetrically arranged mounting side plates and sensor assemblies spaced apart and arranged on one side of the mounting side plates, a flip assembly for driving is arranged between two sets of the mounting side plates, and an adjustment assembly is arranged on the outer side of the flip assembly, and a detection module for detecting microporous defects of the PTFE membrane is arranged on the outer side of the adjustment assembly;

[0007] The adjustment assembly includes a clamping frame arrayed on the outside of the flip assembly, and the clamping frame is symmetrically provided with bending plates on one side close to the flip assembly, and quick-connect rods are installed at intervals on the upper and lower inner walls of the bending plates. A card slot is provided at the bottom of the bending plate, and card blocks are symmetrically provided at the bottom of the inner side of the clamping frame, and the card blocks match the card slots.

[0008] As a preferred technical solution of the present application, telescopic shafts are symmetrically installed at both ends of the clamping frame close to the flip assembly, a reset spring is fixedly installed at the other end of the telescopic shaft, a sleeve shaft is sleeved on the outer side of the telescopic shaft, and the telescopic shaft is connected to the inner wall of the sleeve shaft through the reset spring, and the other end of the sleeve shaft is connected to the outer side of the flip assembly.

[0009] As a preferred technical solution of the present application, torsion springs are provided on both sides of the top of the bending plate, and the bending plate is sleeved on the top of the inner side of the clamping frame through the torsion spring. The flip assembly includes a flip frame arranged between the clamping frames, and the outer array of the flip frame is sleeved with a rotating plate, and the rotating plate corresponds one-to-one to the clamping frame arranged in the array, and the outer side of the flip frame is fixedly connected to the sleeve shaft.

[0010] As a preferred technical solution of the present application, a pull rope is symmetrically installed at the other end of the rotating plate, the other end of the pull rope extends to the inner cavity of the flip frame, and the other end of the pull rope is connected to the inner cavity of the flip frame through a torsion spring.

[0011] As a preferred technical solution of the present application, the flip assembly also includes a rotating shaft arranged in the middle of the flip frame cavity, a second electrode rod is arranged in an array at one end of the rotating shaft, and a third electrode rod is installed obliquely at the middle and lower part of the other end of the rotating shaft.

[0012] As a preferred technical solution of the present application, the outer side of one end of the rotating shaft on which the second electrode rod is mounted is sleeved with a fixed collar, the other end of the fixed collar is fixedly connected to a set of the mounting side plates, a servo motor is fixedly mounted in the middle of the inner cavity of the fixed collar, and the output end of the servo motor is fixedly connected to the middle of the side wall of the rotating shaft.

[0013] As a preferred technical solution of the present application, a first electrode rod is provided in the middle and lower part of the inner cavity of the fixed ring. The first electrode rod is located at the bottom of the servo motor, and the first electrode rod passes through a group of the mounting side plates and is connected to an external power supply.

[0014] As a preferred technical solution of the present application, the rotating shaft is equipped with a third electrode rod, one end of which is sleeved with a fixed seat on the outer side, the inner array of the fixed seat is equipped with electrode sheets, the outer fixed array of the rotating shaft is equipped with a connecting plate, the other end of the connecting plate is fixedly connected to the inner wall of the flip frame, and the connecting plate is made of heat dissipation material.

[0015] As the preferred technical solution of the present application, the detection module includes a detection component arranged on the outside of the adjustment component, the detection component includes a detection plate in contact with the outside of the clamping frame, the inner side of the detection plate is symmetrically installed with clamping columns, the outer side of the clamping columns is clamped with clamping claws, and the other end of the clamping claw is fixedly connected to the quick-connect rod, and the four corners of the outer side of the detection component are installed with clamping shafts, and the middle part of the clamping shaft is provided with a discharge plate.

[0016] As a preferred technical solution of the present application, a second arc-shaped support plate is fixedly installed at the bottom of the two groups of mounting side panels, and the detection module includes a central limit plate arranged on the inner side of the adjustment component, and the inner side of the central limit plate is fixedly connected to the quick-connect rod.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. By using intelligent sensors, white light interferometers and high-speed line scan cameras for high-resolution imaging, combined with the discharge sheet to release weak current to achieve micro-current detection, micro-hole defects can be accurately identified, avoiding misjudgment or missed detection by a single detection method;

[0019] 2. By designing two working modes, Example 1 and Example 2, it can adapt to the detection requirements of single PTFE membrane and continuous PTFE membrane respectively, with high flexibility, and adopts a linkage design of the flip component and the adjustment component. The servo motor drives the rotating shaft to drive the clamping frame and the detection plate to automatically complete the clamping, flipping and release operations, realizing an automated detection process and reducing manual intervention. The clamping frame realizes elastic clamping through the telescopic shaft, reset spring and quick-connect rod to avoid mechanical damage to the PTFE membrane. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the first embodiment of the PTFE membrane micropore defect detection device based on machine vision provided in this application;

[0021] Figure 2 This is a cross-sectional view of the structure of the first embodiment of the PTFE membrane micropore defect detection device based on machine vision provided by this application;

[0022] Figure 3 Schematic diagram of the internal structure of the PTFE membrane micropore defect detection equipment based on machine vision provided in this application;

[0023] Figure 4 A schematic diagram of the connection structure of the adjustment components of the machine vision-based PTFE membrane micropore defect detection equipment provided in this application;

[0024] Figure 5 An exploded diagram of the connection structure of the detection components of the PTFE membrane micropore defect detection equipment based on machine vision provided in this application;

[0025] Figure 6 A side view of the connection structure of the clamping frame of the machine vision-based PTFE membrane micropore defect detection equipment provided in this application;

[0026] Figure 7 A schematic diagram of the connection structure of the flip frame of the machine vision-based PTFE membrane micropore defect detection equipment provided in this application;

[0027] Figure 8 A cross-sectional view of the shaft structure of the machine vision-based PTFE membrane micropore defect detection equipment provided in this application;

[0028] Figure 9 A cross-sectional view of the connection structure of the rotating shaft of the machine vision-based PTFE membrane micropore defect detection equipment provided in this application;

[0029] Figure 10 An exploded diagram of the connection structure of the rotating shaft of the machine vision-based PTFE membrane micropore defect detection equipment provided in this application;

[0030] Figure 11 A structural side view of the rotating shaft of the PTFE membrane micropore defect detection equipment based on machine vision provided in this application;

[0031] Figure 12 This is a schematic diagram of the structure of the second embodiment of the PTFE membrane micropore defect detection device based on machine vision provided in this application;

[0032] Figure 13 This is a cross-sectional view of the structure of the second embodiment of the PTFE membrane micropore defect detection device based on machine vision provided by this application;

[0033] Figure 14 Schematic diagram of the connection structure of the center limit plate of the PTFE membrane micropore defect detection equipment based on machine vision provided in this application.

[0034] Indicated in the figure:

[0035] 1. Install the side panels;

[0036] 2. Adjustment assembly; 201. Clamping frame; 202. Bending plate; 203. Quick-connect rod; 204. Sleeve shaft; 205. Telescopic shaft; 206. Return spring; 207. Clamping block;

[0037] 3. Flip assembly; 301. Flip frame; 302. Rotating plate; 303. Pull rope; 304. Rotating shaft; 305. Connecting plate; 306. Fixing ring; 307. Servo motor; 308. First electrode rod; 309. Second electrode rod; 310. Third electrode rod; 311. Fixing base; 312. Electrode sheet;

[0038] 4. Detection assembly; 401. Detection board; 402. Clamping post; 403. Clamping claw; 404. Clamping shaft; 405. Discharge plate;

[0039] 5. First support plate; 6. Sensor assembly; 7. Second support plate; 8. Center limit plate. DETAILED DESCRIPTION

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0041] The present invention provides a technical solution:

[0042] Example 1: Figures 1-10 The device is a machine vision-based PTFE membrane microporous defect detection device; it includes symmetrically arranged mounting side panels 1 and sensor assemblies 6 spaced apart on one side of the mounting side panels 1. A flip assembly 3 for driving is provided between two sets of mounting side panels 1, and an adjustment assembly 2 is provided in an array outside the flip assembly 3. A detection module for detecting microporous defects in the PTFE membrane is provided outside the adjustment assembly 2.

[0043] The bottom of the two sets of mounting side panels 1 are fixedly mounted with an arc-shaped first support plate 5, and the first support plate 5 is sleeved with the sensor assembly 6. The adjustment assembly 2 includes a clamping frame 201 arrayed on the outside of the flip assembly 3. The clamping frame 201 is symmetrically provided with a bent plate 202 on one side close to the flip assembly 3, and quick-connect rods 203 are installed at intervals on the inner wall of the bent plate 202. A card slot is provided at the bottom of the bent plate 202, and a card block 207 is symmetrically provided on the bottom of the inner side of the clamping frame 201, and the card block 207 matches the card slot;

[0044] The bending plate 202 is clamped by engaging the clamping block 207 with the clamping slot. At this time, the quick-connect rods 203 installed at intervals above and below the inner wall of the bending plate 202 move to the specified position, and the side end surface of the quick-connect rods 203 is flush with the outer surface of the clamping frame 201.

[0045] Telescopic shafts 205 are symmetrically mounted on both ends of the clamping frame 201 near the flip assembly 3. A return spring 206 is fixedly mounted on the other end of the telescopic shaft 205. A sleeve shaft 204 is sleeved on the outer side of the telescopic shaft 205. The telescopic shaft 205 is connected to the inner wall of the sleeve shaft 204 via the return spring 206. The other end of the sleeve shaft 204 is connected to the outer side of the flip assembly 3.

[0046] The telescopic shaft 205 , the sleeve shaft 204 and the reset spring 206 are provided to facilitate position limiting and reset processing of the bending plate 202 and the clamping frame 201 when they are deflected by external force.

[0047] Torsion springs are provided on both sides of the top of the bending plate 202, and the bending plate 202 is sleeved with the top of the inner side of the clamping frame 201 through the torsion springs;

[0048] The bending plate 202 is tied to the clamping frame 201 through a torsion spring. In a normal state, the bottom of the bending plate 202 is separated from the bending plate 202 , and the outer side of the bending plate 202 is in contact with the outer side of the flip assembly 3 .

[0049] The flip assembly 3 includes a flip frame 301 disposed between the clamping frames 201. The outer side of the flip frame 301 is sleeved with a rotating plate 302 in an array, and the rotating plates 302 correspond one-to-one to the clamping frames 201 arranged in an array. The outer side of the flip frame 301 is fixedly connected to the sleeve shaft 204.

[0050] The rotating plate 302 is made of iron and is only connected to the flip frame 301. As the flip frame 301 continues to rotate, the rotating plates 302 located on the side walls and bottom of the flip frame 301 will rotate outward under the action of gravity, while the rotating plate 302 located at the top will reset and limit the rotating plate 302 under the limit of the bending plate 202 in the normal state.

[0051] A pull rope 303 is symmetrically mounted on the other end of the rotating plate 302. The other end of the pull rope 303 extends to the inner cavity of the flip frame 301. The other end of the pull rope 303 is connected to the inner cavity of the flip frame 301 through a torsion spring.

[0052] When the rotating plate 302 rotates, it drives the pull rope 303 and compresses the torsion spring fixedly connected to the pull rope 303, thereby facilitating the reset of the rotating plate 302.

[0053] The flip assembly 3 further includes a rotating shaft 304 disposed in the middle of the inner cavity of the flip frame 301. A second electrode rod 309 is arranged in an array at one end of the rotating shaft 304, and a third electrode rod 310 is obliquely installed at the middle and lower part of the other end of the rotating shaft 304.

[0054] The second electrode rods 309 arranged in an array are all connected to the third electrode rods 310 for conducting an electrification operation on both ends of the rotating plate 302 .

[0055] A fixed collar 306 is sleeved on the outer side of one end of the rotating shaft 304, on which the second electrode rod 309 is mounted. The other end of the fixed collar 306 is fixedly connected to a set of mounting side plates 1. A servo motor 307 is fixedly mounted in the middle of the inner cavity of the fixed collar 306, and the output end of the servo motor 307 is fixedly connected to the middle of the side wall of the rotating shaft 304.

[0056] The servo motor 307 drives the rotating shaft 304 to rotate, and the fixing ring 306 limits the position of the rotating shaft 304 when the rotating shaft 304 rotates.

[0057] A first electrode rod 308 is provided in the middle and lower part of the inner cavity of the fixed collar 306. The first electrode rod 308 is located at the bottom of the servo motor 307. The first electrode rod 308 passes through a set of mounting side plates 1 and is connected to an external power supply.

[0058] The first electrode rod 308 is provided to facilitate powering the second electrode rod 309 and the third electrode rod 310 , and the power supply is prevented from being turned on for a long time by rotating the first electrode rod 308 .

[0059] The rotating shaft 304 is provided with a third electrode rod 310, one end of which is sleeved with a fixing seat 311, and an electrode sheet 312 is installed in an array on the inner side of the fixing seat 311;

[0060] The interior of the fixing seat 311 is filled with electromagnets, which are distributed vertically. By rotating the rotating shaft 304, the electrode sheet 312 is intermittently powered, and the electromagnet is intermittently started, so that the rotating plate 302 located at the lower side of the flip frame 301 can be intermittently adsorbed.

[0061] A connecting plate 305 is fixedly mounted on the outer side of the rotating shaft 304. The other end of the connecting plate 305 is fixedly connected to the inner wall of the flip frame 301. The connecting plate 305 is made of heat dissipation material.

[0062] The connection plate 305 is provided to facilitate the transmission of rotation, and can also cooperate with the cooling fan at the discharge end of the drying furnace to achieve rapid cooling of the entire device;

[0063] The detection module includes a detection component 4 arranged on the outside of the adjustment component 2, the detection component 4 includes a detection plate 401 in contact with the outside of the clamping frame 201, and the inner side of the detection plate 401 is symmetrically installed with a clamping column 402, the outer side of the clamping column 402 is clamped with a clamping claw 403, and the other end of the clamping claw 403 is fixedly connected to the quick-connect rod 203. The four corners of the outer side of the detection component 4 are all installed with a clamping shaft 404, and the middle part of the clamping shaft 404 is provided with a discharge plate 405. By using four groups of clamping shafts 404 to limit and fix a single PTFE membrane, and through the discharge plate 405, micro-current detection is achieved.

[0064] Working principle: When in use, first take out the device and place it in an appropriate position. At this time, take out the single PTFE membrane that needs to be tested. The PTFE membrane can be manually placed on the outside of the test plate 401 so that the reserved holes on the side of the PTFE membrane are connected to the outside of the clamping shaft 404. Then, the test plate 401 is manually (or a lifting robot can be used) transported to the outside of the clamping frame 201 and the servo motor 307 is started.

[0065] Flipping: At this time, the servo motor 307 drives the rotating shaft 304 connected to its output end to rotate, and drives the flip frame 301 to rotate through the connecting plate 305 installed in an array outside the rotating shaft 304. When the flip frame 301 rotates, it synchronously drives the rotating shaft 304 sleeved on its outside to rotate. Since the rotating shaft 304 only rotates with the rotating shaft 304, when the flip frame 301 and the rotating shaft 304 rotate, the rotating shaft 304 located on the side wall and bottom of the flip frame 301 will flip outward under the action of gravity, and drive the pull rope 303 to extend. The other end of the pull rope 303 extends to the inner wall of the flip frame 301, and the other end of the pull rope 303 is connected to the inside of the flip frame 301 through a torsion spring;

[0066] Clamping: When the rotating shaft 304 rotates outward, it will continuously squeeze the corresponding sleeve shaft 204 and make the bending plate 202 rotate around its top. At the same time, the clamping frame 201 is pushed outward by pushing the bending plate 202 until the self-contained slot at the bottom of the bending plate 202 is engaged with the block 207 at the bottom inner side of the clamping frame 201. At this time, the quick-connect rod 203 installed on the inner wall of the bending plate 202 moves into place. With the continuous pushing of the bending plate 202, the clamping frame 201 continues to extend outward and pulls the return spring 206 outward through the telescopic shaft 205 installed in the array on the inner wall of the clamping frame 201 until the rotating shaft 304 is fully rotated. At this time, the clamping frame 201 moves into place and clamps the clamping posts 402 symmetrically installed on the inner side of the detection plate 401 through the quick-connect rod 203 of the array and the clamping claws 403 fixed on its outer side.

[0067] Detection: After clamping, the servo motor 307 continues to rotate, and drives the clamped substrate to rotate, and uses the sensor assembly 6 to detect defects during the rotation. While rotating, the discharge piece 405 releases a weak current, and then combines with the sensor assembly 6 to fully detect it. (The sensor assembly 6 is internally integrated with an intelligent sensor, a white light interferometer, and a high-speed line scan camera) After rotating sixty degrees, the third electrode rod 310 installed on one side of the rotating shaft 304 is connected to a group of electrode pieces 312 on the inner wall of the fixed seat 311, and then the electromagnet inside the fixed seat 311 is energized, thereby generating a magnetic force. At this time, the generated magnetic force magnetically attracts the rotating plate 302 that has just been clamped and rotated sixty degrees, and resets it. At this time, after the clamping frame 201 is not squeezed by the rotating plate 302, it will be reset on the reset spring 2 06, and drives the substrate to retract. By retracting, the rotation radius of the bottom of the adjustment component 2 can be shortened, thereby facilitating the reduction of the installation space. The substrate retracts and rotates the moving angle until the electromagnet inside the fixed seat 311 is powered off and the magnetic force disappears. At this time, the above steps are repeated. The rotating shaft 304 hits the clamping frame 201 and the quick-connect rod 203 under the action of gravity, forcing the quick-connect rod 203 and the clamping claw 403 to separate from the substrate under the action of the impact. Since the substrate is clamped by the quick-connect rod 203, the substrate is light in weight, and the clamping claw 403 is made of elastic rubber. After clamping, clamping can be achieved without external interference. Once there is an external force impact, the substrate will use inertia to separate from the clamping claw 403 after being impacted, thereby completing the disengagement operation of the detection plate 401. This reciprocating process can synchronously detect multiple groups of PTFE membranes.

[0068] Example 2, please refer to Figure 11-14 As shown, an arc-shaped second support plate 7 is fixedly installed at the bottom of the two sets of mounting side plates 1, and the detection module includes a central limiting plate 8 arranged on the inner side of the adjustment component 2. The inner side of the central limiting plate 8 is fixedly connected to the quick-connect rod 203. The central limiting plate 8 can be set to limit the PTFE membrane when the adjustment component stretches it to prevent it from shrinking into the interior of the adjustment component 2.

[0069] The working principle is different from the working principle in Example 1 in that the PTFE membrane to be detected at this time is continuous. The PTFE membrane first passes through the top of the device, passes through the sensor component 6 and the adjustment component 2 along the side wall, and extends to the bottom of the adjustment component 2. At this time, the adjustment component 2 will stretch the PTFE membrane under the push of the flip component 3, and under the limitation of the center limit plate 8, the PTFE membrane is flattened, thereby cooperating with the sensor component 6 to realize detection in a stretched state.

[0070] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0071] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A PTFE membrane micropore defect detection device based on machine vision, comprising a symmetrically arranged mounting side plate (1) and a sensor assembly (6) spaced apart and arranged on one side of the mounting side plate (1), characterized in that: A flip assembly (3) for realizing driving is provided between the two groups of the mounting side plates (1), and an adjustment assembly (2) is provided on the outer side of the flip assembly (3), and a detection module for detecting microporous defects of the PTFE membrane is provided on the outer side of the adjustment assembly (2); The adjustment component (2) comprises a clamping frame (201) arrayed on the outside of the flip component (3); a bending plate (202) is symmetrically arranged on one side of the clamping frame (201) close to the flip component (3); and quick-connect rods (203) are installed at intervals on the upper and lower inner walls of the bending plate (202); a card slot is provided at the bottom of the bending plate (202); and a card block (207) is symmetrically arranged on the bottom of the inner side of the clamping frame (201), and the card block (207) matches the card slot.

2. The PTFE membrane micropore defect detection device based on machine vision according to claim 1, characterized in that: A first arc-shaped support plate (5) is fixedly installed at the bottom of the two groups of mounting side plates (1), and the first support plate (5) is sleeved with the sensor assembly (6). Telescopic shafts (205) are symmetrically installed at both ends of the clamping frame (201) close to the flip assembly (3), and a return spring (206) is fixedly installed at the other end of the telescopic shaft (205). A sleeve shaft (204) is sleeved on the outer side of the telescopic shaft (205), and the telescopic shaft (205) is connected to the inner wall of the sleeve shaft (204) through the return spring (206). The other end of the sleeve shaft (204) is connected to the outer side of the flip assembly (3).

3. The PTFE membrane micropore defect detection device based on machine vision according to claim 2, characterized in that: Torsion springs are provided on both sides of the top of the bending plate (202), and the bending plate (202) is sleeved with the top of the inner side of the clamping frame (201) through the torsion springs. The flip assembly (3) includes a flip frame (301) arranged between the clamping frames (201), and the outer side of the flip frame (301) is sleeved with a rotating plate (302) in an array, and the rotating plate (302) corresponds to the clamping frame (201) arranged in an array one by one. The outer side of the flip frame (301) is fixedly connected to the sleeve shaft (204).

4. The PTFE membrane micropore defect detection device based on machine vision according to claim 3, characterized in that: A pull rope (303) is symmetrically mounted on the other end of the rotating plate (302), and the other end of the pull rope (303) extends to the inner cavity of the flip frame (301), and the other end of the pull rope (303) is connected to the inner cavity of the flip frame (301) through a torsion spring.

5. The PTFE membrane micropore defect detection device based on machine vision according to claim 4, characterized in that: The flip assembly (3) further comprises a rotating shaft (304) arranged in the middle of the inner cavity of the flip frame (301), a second electrode rod (309) being arranged in an array at one end of the rotating shaft (304), and a third electrode rod (310) being obliquely mounted at the middle and lower part of the other end of the rotating shaft (304).

6. The PTFE membrane micropore defect detection device based on machine vision according to claim 5, characterized in that: The outer side of one end of the rotating shaft (304) on which the second electrode rod (309) is mounted is sleeved with a fixed collar (306), the other end of the fixed collar (306) is fixedly connected to a set of mounting side plates (1), a servo motor (307) is fixedly mounted in the middle of the inner cavity of the fixed collar (306), and the output end of the servo motor (307) is fixedly connected to the middle of the side wall of the rotating shaft (304).

7. The PTFE membrane micropore defect detection device based on machine vision according to claim 6, characterized in that: A first electrode rod (308) is provided in the middle and lower part of the inner cavity of the fixed collar (306). The first electrode rod (308) is located at the bottom of the servo motor (307). The first electrode rod (308) passes through a set of the mounting side plates (1) and is connected to an external power supply.

8. The machine vision-based PTFE membrane micropore defect detection device according to claim 7, characterized in that: The rotating shaft (304) is provided with a third electrode rod (310) mounted on one end thereof, and a fixing seat (311) is sleeved on the outer side thereof; an electrode sheet (312) is mounted in an array on the inner side of the fixing seat (311); a connecting plate (305) is mounted on the fixed array on the outer side of the rotating shaft (304); the other end of the connecting plate (305) is fixedly connected to the inner wall of the flip frame (301); and the connecting plate (305) is made of a heat dissipation material.

9. The machine vision-based PTFE membrane micropore defect detection device according to claim 8, characterized in that: The detection module comprises a detection component (4) arranged on the outside of the adjustment component (2), the detection component (4) comprises a detection plate (401) in contact with the outside of the clamping frame (201), a clamping column (402) is symmetrically installed on the inner side of the detection plate (401), a clamping claw (403) is clamped on the outer side of the clamping column (402), and the other end of the clamping claw (403) is fixedly connected to the quick-connect rod (203), and a clamping shaft (404) is installed at the four corners of the outer side of the detection component (4), and a discharge plate (405) is provided in the middle of the clamping shaft (404).

10. The PTFE membrane micropore defect detection device based on machine vision according to claim 1, characterized in that: A second arc-shaped support plate (7) is fixedly mounted on the bottom of the two sets of mounting side plates (1); the detection module comprises a central limiting plate (8) arranged on the inner side of the adjustment assembly (2); the inner side of the central limiting plate (8) is fixedly connected to the quick-connect rod (203).

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