Capacitor detection equipment

Abstract

The invention discloses capacitor detection equipment. The capacitor detection equipment comprises a conveying device, a detection device, a positioning device and a controller, the conveying mechanism comprises first conveying belts, the first conveying belts are arranged at the front end and the rear end of the positioning device, the positioning device is used for fixing the positions of a plurality of capacitors, the detection device comprises a capacitance value detection assembly and an appearance detection assembly, the capacitance value detection assembly is used for detecting the capacitance values of the capacitors, and the appearance detection assembly is used for detecting the appearance of the capacitors. The capacitance value detection assembly comprises a capacitance tester and a plurality of detection electrodes, and each detection electrode is connected with different measurement channels of the capacitance tester; the appearance detection assembly is used for detecting appearance defects of the capacitor; the first conveying belt and the capacitance tester are electrically connected with the controller; the controller is provided with a conveying control module and a capacitance value error detection module, the conveying control module comprises a conveying belt control unit, and the capacitance value error detection module comprises a capacitance value detection unit.

Description

Technical Field

[0001] The invention belongs to the technical field of capacitor detection, and in particular refers to a capacitor detection device. Background Art

[0002] Capacitors play a vital role in electronic devices and are widely used in various fields. The quality of capacitors directly affects the performance and reliability of the entire electronic system. Therefore, high-quality testing of capacitors is an indispensable part of the electronic production process.

[0003] However, the existing capacitor detection technology has many significant shortcomings, the most prominent of which include low detection efficiency, separation of capacitance value detection and appearance detection, and reliance on manual labor for some appearance detection.

[0004] In terms of detection efficiency, traditional capacitor detection methods often fail to meet the needs of modern large-scale production. At present, most detection processes are to detect capacitors one by one. Whether it is using conventional capacitance measuring instruments to measure capacitance values ​​or performing appearance inspections, efficient batch processing cannot be achieved. For example, on a medium-sized capacitor production line, a large number of capacitors need to be tested every day. The traditional one-by-one detection method is not only slow, but also requires a lot of time and labor costs. This seriously restricts production progress, increases production costs, and makes companies face tremendous pressure in market competition.

[0005] Capacitance detection and appearance detection are usually performed separately. This separate detection mode makes the entire detection process cumbersome and incoherent. In terms of capacitance detection, special instruments are generally used to measure the electrical parameters of the capacitor, while appearance detection may use other equipment or methods. This requires frequent switching of equipment and operating procedures during the detection process, increasing the complexity and time cost of the detection. Moreover, since there may be a time interval between the two tests, it is easy to cause some information to be lost or inconsistent, affecting the accurate judgment of the overall quality of the capacitor.

[0006] Another serious problem is that some appearance inspections rely on manual operations. Manual inspections are highly subjective and have poor consistency. Different inspectors may have different judgment criteria for appearance defects. For example, the judgment of tiny scratches on the surface of capacitors, color differences, or clarity of markings may vary from person to person. This not only greatly reduces the reliability of the test results, but may also lead to a large number of misjudgments and missed judgments. In addition, manual inspections are relatively slow and difficult to cope with large-scale capacitor inspection tasks. At the same time, long-term manual inspections can easily fatigue inspectors, further reducing the accuracy and efficiency of inspections.

[0007] In summary, the shortcomings of existing capacitor detection technology in terms of detection efficiency, integration of detection processes, and appearance detection methods have seriously affected the quality and speed of capacitor detection. In order to meet the needs of the modern electronics industry for high-quality and high-efficiency detection of capacitors, it is urgent to develop an innovative capacitor detection equipment to overcome the shortcomings of these existing technologies. Summary of the invention

[0008] In order to overcome the problems of the prior art, the present invention designs a capacitor detection device, which can efficiently perform capacitance value error detection and appearance defect detection on batch capacitors and eliminate unqualified capacitors.

[0009] In order to solve the above technical problems, the technical solution adopted by the present invention is as follows: a capacitor detection device, including a conveying device, a detection device, a positioning device and a controller; the conveying mechanism includes a first conveyor belt, the first conveyor belt is provided at both ends of the positioning device, the first conveyor belt is used to convey capacitors, the positioning device is used to simultaneously fix the positions of multiple capacitors during detection, the detection device includes a capacitance value detection component and an appearance detection component, the capacitance value detection component is used to detect the capacitance value of the capacitor, the capacitance value detection component includes a capacitance tester and a plurality of detection electrodes, each of the detection electrodes is connected to a different measurement channel of the capacitance tester; the appearance detection component is used to detect the appearance defects of the capacitor; the first conveyor belt and the capacitance tester are both electrically connected to the controller; the controller is provided with a conveying control module and a capacitance value error detection module, the conveying control module includes a conveyor belt control unit, the conveyor belt control unit is used to control the operation of the first conveyor belt, the capacitance value error detection module includes a capacitance value detection unit, the capacitance value detection unit is used to obtain the capacitance values ​​of different capacitors measured by the capacitance tester.

[0010] Furthermore, the positioning device includes a fixed bottom plate, a side plate, a lifting support plate and a lifting drive member. The fixed bottom plate is arranged with a plurality of positioning grooves, each of which is provided with the lifting support plate, and the lifting drive member is used to drive all the lifting support plates to rise and fall synchronously; a notch is provided on one side of the positioning groove for the pins of the capacitor to pass through. When testing is required, all the lifting support plates are lowered so that the capacitors entering the positioning device fall into the positioning grooves. The spacing between the capacitors falling into the positioning grooves is fixed, which is convenient for subsequent testing; a retaining edge is also provided on the fixed bottom plate to limit the displacement of the capacitor, and the notch passes through the retaining edge to ensure that the capacitor falls into the positioning groove. The retaining edge at the front end of the positioning device is also connected to an arc-shaped guide edge, and the arc-shaped guide edge is used to guide the movement of the capacitor on the first conveyor belt.

[0011] Furthermore, the positioning device also includes an angle adjustment member, which includes a mounting plate, a first hydraulic push rod, a motor and a baffle. The mounting plate is fixed to the push rod end of the first hydraulic push rod, and a plurality of motors are arranged on the mounting plate. The baffle is arranged at the end of the rotating shaft of the motor, and the width of the baffle is greater than the spacing between two pins of the capacitor. The width of the baffle is greater than the spacing between two pins of the capacitor. The first hydraulic push rod and the motor are both electrically connected to the controller, and the controller is provided with an angle adjustment module, and the angle adjustment module includes a push rod control unit and an angle control unit. The push rod control unit is used to control the extension and retraction of the first hydraulic push rod, and the angle control unit is used to control the angle of the rotating shaft of the motor. When the lifting support plate moves to the lowest point and the capacitor falls into the positioning groove, the rotating shaft of the motor is concentric with the capacitor, the first hydraulic push rod pushes the mounting plate close to the capacitor, the baffle is inserted between the two pins of the capacitor, the angle control unit controls the rotation angle of the rotating shaft of the motor, the motor drives the baffle to rotate, and the baffle drives the capacitor to rotate by pushing the two pins of the capacitor, so that the positive and negative pins of the capacitor can be aligned in the correct direction, which is convenient for the capacitance value detection component to connect the positive and negative pins.

[0012] Furthermore, the appearance inspection component includes an inspection camera, and a plurality of the inspection cameras are arranged above the positioning device. The inspection camera is used to take images of the capacitor. When the angle adjustment member drives the capacitor to rotate, the inspection camera can take images of the capacitor at different angles. The inspection camera is electrically connected to the controller, and the controller is provided with an image detection module, and the image detection module is used to perform image recognition on the images taken by the inspection camera. It is used to evaluate the appearance defects of the capacitor.

[0013] Furthermore, the capacitance value detection component also includes an electrode plate and a first electromagnetic push rod, the detection electrodes are all arranged on the electrode plate, one detection electrode includes two positive and negative electrodes, the bottom of the electrode plate is installed on the top of the push rods of several first electromagnetic push rods, the first electromagnetic push rod drives the electrode plate to rise and fall, when the electrode plate rises, the detection electrode contacts the pins of the capacitor, the first electromagnetic push rod is electrically connected to the controller, and the capacitance value error detection module also includes an electromagnetic push rod control unit, which is used to control the first electromagnetic push rod. The top of the detection electrode has a horizontal plane, and even if the two pins of the capacitor are not completely horizontal, they will be pushed flat by the detection electrode.

[0014] Furthermore, the lifting drive component includes a second hydraulic push rod, a lifting base plate and a push rod. There are two second hydraulic push rods, which are respectively arranged at both ends of the fixed base plate. The push rod of the second hydraulic push rod is connected to the lifting base plate. A plurality of push rods are arranged on the lifting base plate. The lifting support plate is fixed to the top of the push rod. The second hydraulic push rod is electrically connected to the controller. The controller is also provided with a lifting control module. The lifting control module is used to control the extension length of the push rod of the second hydraulic push rod.

[0015] Furthermore, the conveying mechanism also includes a lifting baffle, a third hydraulic push rod, a push-out baffle, a slide rail, a track slider, a cross frame and a slider driving member. The lifting baffle is arranged at the front and rear ends of the positioning device, and the lifting baffle can be lifted and lowered under the drive of the third hydraulic push rod. A photoelectric sensor is arranged at the lifting baffle, and the photoelectric sensor is used to detect the number of capacitors passing through; the tops of the two side plates are provided with the slide rails, and the track sliders are installed on the slide rails. The two ends of the cross frame are installed on the two track sliders, and the push-out baffle is installed on one side of the cross frame. The slider driving member is used to drive the track slider to move along the slide rail; the third hydraulic push rod, the slider driving member, and the photoelectric sensor are all electrically connected to the controller, and the conveying control module is provided with a counting unit, a baffle control unit and a push-out control unit. The counting unit calculates the number of capacitors passing through according to the data measured by the photoelectric sensor, the baffle control unit is used to control the third hydraulic push rod, and the push-out control unit is used to control the slider driving member. The slider driving member adopts a screw rod and a motor, and a threaded hole is provided on the track slider. The screw rod cooperates with the threaded hole, and the electrode drives the screw rod to rotate, and the screw rod rotates to drive the track slider to move; when the capacitor enters the positioning groove for detection, the push-out baffle moves to the front end of the positioning device, and when the capacitor completes the detection, the lifting baffle at the rear end of the positioning device rises and opens, and the lifting support plate lifts the capacitor to be flush with the fixed bottom plate, at this time, the push-out baffle moves to the rear end of the positioning device to push the capacitor out, and the photoelectric sensor of the lifting baffle at the rear end detects the number of capacitors passing by, when the capacitor completely leaves the positioning device, the lifting baffle at the rear end is lowered and closed, and the lifting baffle at the front end is raised and opened, and the next batch of capacitors enter, and the photoelectric sensor of the lifting baffle at the front end detects the number of capacitors passing by, and when the number of capacitors passing by reaches the upper limit, the lifting baffle at the front end is lowered. It is also possible not to set the push-out baffle, and the device is tilted as a whole, and the capacitor will automatically roll down.

[0016] Furthermore, it also includes an exclusion device, which includes a second conveyor belt, a fourth hydraulic push rod and a vacuum suction cup, and the exclusion device is electrically connected to the controller; the second conveyor belt is arranged on one side of the positioning device, and a side of the positioning groove close to the second conveyor belt is provided with an exclusion hole for the capacitor to pass through, and a plurality of fourth hydraulic push rods are arranged above the second conveyor belt, and the vacuum suction cup is fixed to the push rod end of the fourth hydraulic push rod, and when the fourth hydraulic push rod is extended, the vacuum suction cup can pass through the exclusion hole to absorb the capacitor. When the capacitor is detected to be unqualified, the fourth hydraulic push rod at the corresponding position is extended, and the vacuum suction cup absorbs the capacitor and pulls it out, and the capacitor falls on the second conveyor belt and is recycled.

[0017] Furthermore, when the capacitor is located above the fixed bottom plate, the height of the capacitor axis is H, and when the capacitor is located in the positioning groove for detection, the height of the capacitor axis is h, and the height of the axis of the exclusion hole is lower than H and higher than h. When a capacitor is detected to be unqualified, the lifting support plate lifts the capacitor to be flush with the exclusion hole, and the capacitor can be sucked out by the vacuum suction cup at this time. The edge of the exclusion hole close to one end of the positioning groove is chamfered.

[0018] The beneficial effects of a capacitor detection device of the present invention are as follows: the positioning device can fix multiple capacitors at the same time, and multiple capacitors are detected synchronously, which greatly improves the detection efficiency; multiple detection cameras shoot from different angles, and the angle adjustment member rotates the capacitor to comprehensively detect the appearance of the capacitor; the image detection module accurately identifies appearance defects through an image processing algorithm to reduce human errors; when unqualified capacitors are detected, it responds quickly, and the exclusion device automatically excludes and recycles the unqualified capacitors, which is conducive to recycling analysis and improvement, and ensures product quality consistency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of a capacitor detection device of the present invention Figure 1 ;

[0020] Figure 2 A schematic diagram of the structure of a capacitor detection device of the present invention Figure 2 ;

[0021] Figure 3 A schematic diagram of the structure of a capacitor detection device of the present invention Figure 3 ;

[0022] Figure 4 A schematic diagram of the structure of a capacitor detection device of the present invention Figure 4 ;

[0023] Figure 5 A schematic diagram of the structure of a capacitor detection device of the present invention Figure 5 ;

[0024] Figure 6 The present invention is a schematic diagram of the connection structure of a controller of a capacitor detection device.

[0025] Among them, 1-conveyor device, 11-first conveyor belt, 12-lifting baffle, 121-photoelectric sensor, 13-third hydraulic push rod, 14-push baffle, 15-slide rail, 16-track slider, 17-cross frame, 18-slide driver, 2-detection device, 21-capacitance detection component, 211-capacitance tester, 212-detection electrode, 213-electrode plate, 214-first electromagnetic push rod, 22-appearance detection component, 221-detection camera, 3-positioning device, 31-fixed bottom plate, 311-positioning groove, 3111-notch, 312-rib, 3121-arc guide edge, 313-exclusion hole, 32-side plate, 33-lifting support plate, 34-lifting driver, 341-second hydraulic push rod, 342-lifting bottom plate , 343-rod, 35-angle adjustment member, 351-mounting plate, 352-first hydraulic push rod, 353-motor, 354-baffle, 4-capacitor, 41-pin, 5-controller, 51-conveying control module, 511-conveyor belt control unit, 512-counting unit, 513-baffle control unit, 514-push control unit, 52-capacitance value error detection module, 521-capacitance value detection unit, 522-electromagnetic push rod control unit, 53-angle adjustment module, 531-push rod control unit, 532-angle control unit, 54-image detection module, 55-lifting control module, 56-elimination control module, 561-6-elimination device, 61-second conveyor belt, 62-fourth hydraulic push rod, 63-vacuum suction cup. DETAILED DESCRIPTION

[0026] The technical solution of the present invention will be described clearly and completely below 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 creative work are within the scope of protection of the present invention.

[0027] like Figure 1-6As shown, the present invention is a capacitor detection device, comprising a conveying device 1, a detection device 2, a positioning device 3 and a controller 5; the conveying mechanism 1 comprises a first conveying belt 11, the first conveying belt 11 is provided at both ends of the positioning device 3, the first conveying belt 11 is used to convey capacitors 4, the positioning device 3 is used to simultaneously fix the positions of multiple capacitors 4 during detection, the detection device 2 comprises a capacitance value detection component 21 and an appearance detection component 22, the capacitance value detection component 21 is used to detect the capacitance value of the capacitor 4, the capacitance value detection component 21 comprises a capacitance tester 211 and a plurality of detection electrodes 212, each of the detection electrodes 212 Connect different measurement channels of the capacitance tester 211; the appearance detection component 22 is used to detect appearance defects of the capacitor 4; the first conveyor belt 11 and the capacitance tester 211 are both electrically connected to the controller 5; the controller 5 is provided with a conveying control module 51 and a capacitance value error detection module 52, the conveying control module 51 includes a conveyor belt control unit 511, the conveyor belt control unit 511 is used to control the operation of the first conveyor belt 11, the capacitance value error detection module 52 includes a capacitance value detection unit 521, the capacitance value detection unit 521 is used to obtain the capacitance values ​​of different capacitors 4 measured by the capacitance tester 211.

[0028] Furthermore, the positioning device 3 includes a fixed base plate 31, a side plate 32, a lifting support plate 33 and a lifting drive member 34. A plurality of positioning grooves 311 are arranged on the fixed base plate 31. Each of the positioning grooves 311 is provided with a lifting support plate 33. The lifting drive member 34 is used to drive all the lifting support plates 33 to rise and fall synchronously. A notch 3111 is provided on one side of the positioning groove 311 for the pin 41 of the capacitor 4 to pass through. When inspection is required, all the lifting plates 33 are lowered so that the capacitor 4 entering the positioning device 3 falls into the positioning groove 311. The spacing between the capacitors 4 falling into the positioning groove 311 is fixed, which is convenient for subsequent inspection; the fixed bottom plate 31 is also provided with a rib 312 for limiting the displacement of the capacitor 4, and the notch 3111 passes through the rib 312 to ensure that the capacitor 4 falls into the positioning groove 311. The rib 312 located at the front end of the positioning device 3 is also connected to an arc guide edge 3121, and the arc guide edge 3121 is used to guide the movement of the capacitor 4 on the first conveyor belt 11.

[0029] Furthermore, the positioning device 3 also includes an angle adjustment member 35, which includes a mounting plate 351, a first hydraulic push rod 352, a motor 353 and a baffle 354. The mounting plate 351 is fixed to the push rod end of the first hydraulic push rod 352, and a plurality of motors 353 are provided on the mounting plate 351. The end of the rotating shaft of the motor 353 is provided with a baffle 354, and the width of the baffle 354 is greater than the spacing between the two pins 41 of the capacitor 4. The width of the baffle 354 is greater than the spacing between the two pins 41 of the capacitor 4. The first hydraulic push rod 352 and the motor 353 are both electrically connected to the controller 5. The controller 5 is provided with an angle adjustment module 53. The angle adjustment module 53 includes a push rod control unit 531 and an angle control unit 532. The push rod control unit 531 is used to control the extension and retraction of the first hydraulic push rod 352, and the angle control unit 532 is used to control the angle of the rotating shaft of the motor 353. When the lifting support plate 33 moves to the lowest point and the capacitor 4 falls into the positioning groove 311, the rotating shaft of the motor 353 is concentric with the capacitor 4, the first hydraulic push rod 352 pushes the mounting plate 351 close to the capacitor 4, the baffle 354 is inserted between the two pins 41 of the capacitor 4, and the angle control unit 322 controls the rotation angle of the rotating shaft of the motor 353. The motor 353 drives the baffle 354 to rotate. The baffle 354 drives the capacitor 4 to rotate by pushing the two pins 41 of the capacitor 4, so that the positive and negative pins 41 of the capacitor 4 can be aligned in the correct direction, which is convenient for the capacitance value detection component 21 to connect the positive and negative pins 41.

[0030] Furthermore, the appearance inspection component 22 includes an inspection camera 221, and a plurality of the inspection cameras 221 are arranged above the positioning device 3. The inspection camera 221 is used to take images of the capacitor 4. When the angle adjustment member 35 drives the capacitor 4 to rotate, the inspection camera 221 can take images of the capacitor 4 at different angles. The inspection camera 221 is electrically connected to the controller 5, and the controller 5 is provided with an image inspection module 54, and the image inspection module 54 is used to perform image recognition on the images taken by the inspection camera 221. It is used to evaluate the appearance defects of the capacitor 4.

[0031] The specific steps of image recognition and defect detection are as follows:

[0032] Step S1: When the angle adjustment member 35 drives the capacitor 4 to rotate, the detection camera 221 takes images of the capacitor 4 at certain angles and feeds the image data back to the controller 5 in real time.

[0033] Step S2: preprocess the image, perform grayscale processing on the received image, convert the color image into a grayscale image, and reduce the amount of data and the complexity of subsequent calculations;

[0034] Step S3: Perform noise reduction processing to remove noise interference in the image and improve image quality. For example, use algorithms such as median filtering to remove salt and pepper noise;

[0035] Step S4: using edge detection algorithms (such as Canny edge detection) and other techniques to identify the outline of the capacitor in the image;

[0036] Step S5: According to the contour information, useless pixels other than the capacitor in the image are cut out to obtain an image region containing only the capacitor;

[0037] Step S6: feature matching and fusion of the multiple photos taken, for example, an image stitching algorithm based on feature points, such as SIFT (Scale Invariant Feature Transform) or SURF (Speeded Up Robust Feature) algorithm, can be used to find the correspondence between the images, and then the images are fused and stitched together to finally form a complete image of the side of the capacitor;

[0038] Step S7: Use the pre-trained defect detection model to detect the capacitor image to determine whether there are appearance defects such as scratches, damage, worn text information, bent and broken or missing pins;

[0039] Step S8: The text recognition submodule of the image detection module recognizes the text information on the side of the capacitor and reads the capacitance value and other related information;

[0040] Step S9: sending the capacitance value obtained by text recognition to the capacitance value error detection module 52 to compare it with the capacitance value actually measured to calculate the capacitance value error.

[0041] The specific training steps of the defect detection model are as follows:

[0042] Step S1: Obtain a large number of known qualified capacitor images from the production line or sample library. Ensure that these images cover qualified capacitor samples of different models, different batches, different angles and different production environments to increase the generalization ability of the model;

[0043] These images are labeled with the label information as "qualified". The labeling method can be to mark them in the image file name or related data record file so that they can be recognized during subsequent model training.

[0044] Step S2: also collect various capacitor images with appearance defects from actual production or a specially set defect sample library, the defect types include scratches, breakage, text information wear, bent, broken or missing pins, etc.

[0045] Step S3: Detailed annotation of the unqualified image, including the defect type and specific location. For example, for an image of a capacitor with a scratch, it is labeled as "scratch, located in the middle of the side of the capacitor", and a box can be used to frame the defect location. The contour recognition algorithm can also be used to determine the defect location later.

[0046] Step S4: normalize all collected images (qualified and unqualified) and adjust the size of the images to a size suitable for model input;

[0047] Step S5: Divide the pixel value by 255 to achieve normalization to [0, 1]. Use random rotation (such as -45° to 45°), flipping, cropping, brightness adjustment (±15% range) and contrast adjustment to enhance data diversity and model adaptability, generate more diverse samples, and allow the model to better adapt to capacitor images in different situations;

[0048] Step S6: Select or fine-tune the appropriate model architecture based on the task characteristics, and build the model structure using a deep learning framework;

[0049] Step S7: Dataset division and parameter setting: divide the data set into training set and validation set in proportion, and set training parameters such as learning rate and batch size;

[0050] Step S8: input the training set data into the model in batches to obtain the test results;

[0051] Step S9: Obtain the detected defect category or value, compare it with the actual defect category and value of the training set data, and evaluate the detection accuracy;

[0052] Step S10: Continuously adjust the model parameters to make the prediction results closer to the true labels, save the model parameters regularly (such as once every 10 rounds), and monitor the performance indicators such as the accuracy and loss value of the model on the training set in real time.

[0053] Further, the capacitance value detection component 21 also includes an electrode plate 213 and a first electromagnetic push rod 214, the detection electrodes 212 are all arranged on the electrode plate 213, one detection electrode 212 includes two positive and negative electrodes, the bottom of the electrode plate 213 is installed on the top of the push rods of several first electromagnetic push rods 214, the first electromagnetic push rod 214 drives the electrode plate 213 to rise and fall, when the electrode plate 213 rises, the detection electrode 212 contacts the pin 41 of the capacitor 4, the first electromagnetic push rod 214 is electrically connected to the controller 5, and the capacitance value error detection module 52 also includes an electromagnetic push rod control unit 522, and the electromagnetic push rod control unit 522 is used to control the first electromagnetic push rod 214. The top of the detection electrode 212 has a horizontal surface, even if the two pins 41 of the capacitor 4 are not completely horizontal, they will be flattened by the detection electrode 212.

[0054] Furthermore, the lifting drive component 34 includes a second hydraulic push rod 341, a lifting base plate 342 and a push rod 343. There are two second hydraulic push rods 341, and the two second hydraulic push rods 341 are respectively arranged at both ends of the fixed base plate 31. The push rod of the second hydraulic push rod 341 is connected to the lifting base plate 342. A plurality of push rods 343 are arranged on the lifting base plate 342. The lifting support plate 33 is fixed to the top of the push rod 343; the second hydraulic push rod 341 is electrically connected to the controller 5, and the controller 5 is also provided with a lifting control module 55, and the lifting control module 55 is used to control the extension length of the push rod of the second hydraulic push rod 341.

[0055] Furthermore, the conveying mechanism 1 also includes a lifting baffle 12, a third hydraulic push rod 13, a push-out baffle 14, a slide rail 15, a track slider 16, a cross frame 17 and a slider driving member 18. The lifting baffle 12 is arranged at the front and rear ends of the positioning device 3. The lifting baffle 12 can be lifted and lowered under the drive of the third hydraulic push rod 13. A photoelectric sensor 121 is arranged at the lifting baffle 12. The photoelectric sensor 121 is used to detect the number of capacitors 4 passing through; the slide rail 15 is arranged on the top of the two side plates 32, and the track slider 16 is installed on the slide rail 15. The two ends of the cross frame 17 are installed on the two track sliders 16. The baffle 14 is installed on one side of the cross frame 17, and the slider driving component 18 is used to drive the track slider 16 to move along the slide rail 15; the third hydraulic push rod 13, the slider driving component 18, and the photoelectric sensor 121 are all electrically connected to the controller 5, and the conveying control module 51 is provided with a counting unit 512, a baffle control unit 513 and an ejection control unit 514, the counting unit 512 calculates the number of capacitors 4 passing through according to the data measured by the photoelectric sensor 121, the baffle control unit 513 is used to control the third hydraulic push rod 13, and the ejection control unit 514 is used to control the slider driving component 18. The slider driving member 18 adopts a screw rod and a motor, a threaded hole is provided on the track slider 16, the screw rod cooperates with the threaded hole, the electrode drives the screw rod to rotate, and the screw rod rotation drives the track slider 16 to move; when the capacitor 4 enters the positioning groove 311 for detection, the push-out baffle 14 moves to the front end of the positioning device 3, when the capacitor 4 completes the detection, the lifting baffle 12 at the rear end of the positioning device 3 rises and opens, and the lifting support plate 33 lifts the capacitor 4 to be flush with the fixed bottom plate 31, at this time, the push-out baffle 14 moves to the front end of the positioning device 3, and when the capacitor 4 completes the detection, the lifting baffle 12 at the rear end of the positioning device 3 rises and opens, and the lifting support plate 33 lifts the capacitor 4 to be flush with the fixed bottom plate 31. The exit baffle 14 moves toward the rear end of the positioning device 3 to push out the capacitor 4. The photoelectric sensor 121 of the lifting baffle 12 at the rear end detects the number of capacitors 4 that have passed. When the capacitors 4 have completely left the positioning device 3, the lifting baffle 12 at the rear end is lowered and closed, and the lifting baffle 12 at the front end is raised and opened, and the next batch of capacitors 4 enter. The photoelectric sensor 121 of the lifting baffle 12 at the front end detects the number of capacitors 4 that have passed. When the number of capacitors 4 that have passed reaches the upper limit, the lifting baffle 12 at the front end is lowered. The ejection baffle 14 may also be omitted, and the device may be tilted as a whole, so that the capacitors 4 will automatically roll off.

[0056] Furthermore, it also includes an exclusion device 6, which includes a second conveyor belt 61, a fourth hydraulic push rod 62 and a vacuum suction cup 63, and the exclusion device 6 is electrically connected to the controller 5; the second conveyor belt 61 is arranged on one side of the positioning device 3, and the side of the positioning groove 311 close to the second conveyor belt 61 is provided with an exclusion hole 313 for the capacitor 4 to pass through, and a plurality of fourth hydraulic push rods 62 are arranged above the second conveyor belt 61, and the push rod end of the fourth hydraulic push rod 62 is fixed with the vacuum suction cup 63, and when the fourth hydraulic push rod 62 is extended, the vacuum suction cup 63 can pass through the exclusion hole 313 to absorb the capacitor 4. When the capacitor 4 is detected to be unqualified, the fourth hydraulic push rod 62 at the corresponding position is extended, and the vacuum suction cup 63 sucks the capacitor 4 to pull it out, and the capacitor 4 falls on the second conveyor belt 61 and is recovered.

[0057] Furthermore, when the capacitor 4 is located above the fixed bottom plate 31, the height of the axis of the capacitor 4 is H, and when the capacitor 4 is located in the positioning groove 311 for detection, the height of the axis of the capacitor 4 is h, and the height of the axis of the exclusion hole 313 is lower than H and higher than h. When a capacitor 4 is detected to be unqualified, the lifting support plate 33 lifts the capacitor 4 to be flush with the exclusion hole 313, and the capacitor 4 can be sucked out by the vacuum suction cup 63 at this time. The edge of the exclusion hole 313 close to one end of the positioning groove 311 is chamfered.

[0058] The beneficial effects of a capacitor detection device of the present invention are as follows: the positioning device can fix multiple capacitors at the same time, and multiple capacitors are detected synchronously, which greatly improves the detection efficiency; multiple detection cameras shoot from different angles, and the angle adjustment member rotates the capacitor to comprehensively detect the appearance of the capacitor; the image detection module accurately identifies appearance defects through an image processing algorithm to reduce human errors; when unqualified capacitors are detected, it responds quickly, and the exclusion device automatically excludes and recycles the unqualified capacitors, which is conducive to recycling analysis and improvement, and ensures product quality consistency.

[0059] The present invention and its embodiments are described above, which is not restrictive. What is shown in the accompanying drawings is only one of the embodiments of the present invention, and the actual content is not limited to this. In short, if ordinary technicians in this field are inspired by it and do not deviate from the purpose of the invention, they can creatively design structural methods and embodiments similar to the technical scheme, which should all fall within the scope of protection of the present invention.

Claims

1. A capacitor detection device, characterized in that: The invention comprises a conveying device (1), a detection device (2), a positioning device (3) and a controller (5); the conveying mechanism (1) comprises a first conveying belt (11), the first conveying belt (11) is provided at both the front and rear ends of the positioning device (3), the first conveying belt (11) is used to convey capacitors (4), the positioning device (3) is used to simultaneously fix the positions of a plurality of capacitors (4) during detection, the detection device (2) comprises a capacitance value detection component (21) and an appearance detection component (22), the capacitance value detection component (21) is used to detect the capacitance value of the capacitor (4), the capacitance value detection component (21) comprises a capacitance tester (211) and a plurality of detection electrodes (212), each of the detection electrodes (212) being connected to the capacitor The invention relates to a capacitor (4) having a first conveyor belt (11) and a second conveyor belt tester (211); the first conveyor belt (11) and the capacitance tester (211) are both electrically connected to the controller (5); the controller (5) is provided with a conveyor control module (51) and a capacitance value error detection module (52); the conveyor control module (51) comprises a conveyor belt control unit (511); the conveyor belt control unit (511) is used to control the operation of the first conveyor belt (11); the capacitance value error detection module (52) comprises a capacitance value detection unit (521); the capacitance value detection unit (521) is used to obtain the capacitance values ​​of different capacitors (4) measured by the capacitance tester (211).

2. A capacitor detection device according to claim 1, characterized in that: The positioning device (3) comprises a fixed base plate (31), a side plate (32), a lifting support plate (33) and a lifting drive member (34); a plurality of positioning grooves (311) are arranged on the fixed base plate (31); each of the positioning grooves (311) is provided with the lifting support plate (33); the lifting drive member (34) is used to drive all the lifting support plates (33) to rise and fall synchronously; a notch (3111) is provided on one side of the positioning groove (311) for a pin (41) of the capacitor (4) to pass through.

3. A capacitor detection device according to claim 2, characterized in that: The positioning device (3) further comprises an angle adjustment member (35), the angle adjustment member (35) comprising a mounting plate (351), a first hydraulic push rod (352), a motor (353) and a baffle (354), the mounting plate (351) being fixed to the push rod end of the first hydraulic push rod (352), a plurality of motors (353) being arranged on the mounting plate (351), the baffle (354) being arranged at the end of the rotating shaft of the motor (353), the width of the baffle (354) being greater than the spacing between the two pins (41) of the capacitor (4), and the baffle (354) being arranged at the end of the rotating shaft of the motor (353). The width of (354) is greater than the spacing between the two pins (41) of the capacitor (4); the first hydraulic push rod (352) and the motor (353) are both electrically connected to the controller (5), and the controller (5) is provided with an angle adjustment module (53), and the angle adjustment module (53) includes a push rod control unit (531) and an angle control unit (532), the push rod control unit (531) is used to control the extension and retraction of the first hydraulic push rod (352), and the angle control unit (532) is used to control the angle of the motor (353) shaft.

4. A capacitor detection device according to claim 3, characterized in that: The appearance detection component (22) comprises a detection camera (221). A plurality of the detection cameras (221) are arranged above the positioning device (3). The detection cameras (221) are used to capture images of the capacitor (4). When the angle adjustment member (35) drives the capacitor (4) to rotate, the detection cameras (221) can capture images of the capacitor (4) at different angles. The detection cameras (221) are electrically connected to the controller (5). The controller (5) is provided with an image detection module (54). The image detection module (54) is used to perform image recognition on images captured by the detection cameras (221).

5. A capacitor detection device according to claim 2, characterized in that: The capacitance value detection component (21) further comprises an electrode plate (213) and a first electromagnetic push rod (214); the detection electrodes (212) are all arranged on the electrode plate (213); one detection electrode (212) comprises two positive and negative electrodes; the bottom of the electrode plate (213) is mounted on the top of a plurality of push rods of the first electromagnetic push rods (214); the first electromagnetic push rod (214) drives the electrode plate (213) to rise and fall; when the electrode plate (213) rises, the detection electrode (212) contacts the pin (41) of the capacitor (4); the first electromagnetic push rod (214) is electrically connected to the controller (5); the capacitance value error detection module (52) further comprises an electromagnetic push rod control unit (522); the electromagnetic push rod control unit (522) is used to control the first electromagnetic push rod (214).

6. A capacitor detection device according to claim 2, characterized in that: The lifting drive member (34) comprises a second hydraulic push rod (341), a lifting base plate (342) and a push rod (343). There are two second hydraulic push rods (341), which are respectively arranged at two ends of the fixed base plate (31). The push rod of the second hydraulic push rod (341) is connected to the lifting base plate (342). The lifting base plate (342) is provided with a plurality of push rods (343). The lifting support plate (33) is fixed to the top of the push rod (343). The second hydraulic push rod (341) is electrically connected to the controller (5). The controller (5) is also provided with a lifting control module (55). The lifting control module (55) is used to control the extension length of the push rod of the second hydraulic push rod (341).

7. A capacitor detection device according to claim 2, characterized in that: The conveying mechanism (1) further comprises a lifting baffle (12), a third hydraulic push rod (13), a push-out baffle (14), a slide rail (15), a track slider (16), a cross frame (17) and a slider driving member (18); the lifting baffle (12) is arranged at the front and rear ends of the positioning device (3); the lifting baffle (12) can be lifted and lowered under the drive of the third hydraulic push rod (13); a photoelectric sensor (121) is arranged at the lifting baffle (12); the photoelectric sensor (121) is used to detect the number of capacitors (4) passing through; the slide rail (15) is arranged at the top of the two side plates (32); the track slider (16) is installed on the slide rail (15); the two ends of the cross frame (17) are installed on the two track sliders (16); the push-out baffle (14) is arranged at the top of the two side plates (32); the track slider (16) is installed on the slide rail (15); the two ends of the cross frame (17) are installed on the two track sliders (16); the push-out baffle (14) is arranged at the front and rear ends of the positioning device (3); the lifting baffle (12) is arranged at the rear ... The baffle (14) is installed on one side of the cross frame (17); the slider driving member (18) is used to drive the track slider (16) to move along the slide rail (15); the third hydraulic push rod (13), the slider driving member (18) and the photoelectric sensor (121) are all electrically connected to the controller (5); the conveying control module (51) is provided with a counting unit (512), a baffle control unit (513) and an ejection control unit (514); the counting unit (512) calculates the number of capacitors (4) passing through according to data measured by the photoelectric sensor (121); the baffle control unit (513) is used to control the third hydraulic push rod (13); and the ejection control unit (514) is used to control the slider driving member (18).

8. A capacitor detection device according to claim 2, characterized in that: It also includes an exclusion device (6), which includes a second conveyor belt (61), a fourth hydraulic push rod (62) and a vacuum suction cup (63), and the exclusion device (6) is electrically connected to the controller (5); the second conveyor belt (61) is arranged on one side of the positioning device (3), and a side of the positioning groove (311) close to the second conveyor belt (61) is provided with an exclusion hole (313) for the capacitor (4) to pass through, and a plurality of fourth hydraulic push rods (62) are arranged above the second conveyor belt (61), and the vacuum suction cup (63) is fixed to the push rod end of the fourth hydraulic push rod (62). When the fourth hydraulic push rod (62) is extended, the vacuum suction cup (63) can pass through the exclusion hole (313) to adsorb the capacitor (4).

9. A capacitor detection device according to claim 8, characterized in that: When the capacitor (4) is located above the fixed bottom plate (31), the axial height of the capacitor (4) is H; when the capacitor (4) is located in the positioning groove (311) for detection, the axial height of the capacitor (4) is h; and the axial height of the exclusion hole (313) is lower than H and higher than h.

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