A fully automatic capacitor appearance detection device and its detection method

Abstract

The present invention relates to the technical field of appearance detection equipment, and particularly relates to a full-automatic capacitance appearance detection equipment, which includes a feeding mechanism, a first conveying mechanism, a second conveying mechanism, a third conveying mechanism, a first detection mechanism, a second detection mechanism, a third detection mechanism, a discharging mechanism and a control and analysis mechanism electrically connected to them. The first conveying mechanism is connected to the feeding mechanism, one end of the second conveying mechanism is connected to the first conveying mechanism, the other end of the second conveying mechanism is connected to the third conveying mechanism, the discharging mechanism is connected to the third conveying mechanism, the first detection mechanism detects the products conveyed on the first conveying mechanism, the second detection mechanism detects the products conveyed on the second conveying mechanism, the third detection mechanism detects the products conveyed on the third conveying mechanism, and the positions of the first conveying mechanism and the third conveying mechanism are both higher than the position of the second conveying mechanism. This equipment improves the efficiency, accuracy and versatility of capacitance appearance detection. In addition, the present invention also discloses a detection method.

Description

Technical Field

[0001] The present invention relates to the technical field of appearance detection equipment, and in particular to a full-automatic capacitor appearance detection equipment and its detection method. Background Art

[0002] Two conductors close to each other with a non-conductive insulating medium sandwiched in the middle form a capacitor. When a voltage is applied between the two plates of the capacitor, the capacitor will store charge. The capacitance of the capacitor numerically equals the ratio of the charge quantity on one conductive plate to the voltage between the two plates. After the production of the capacitor, it is necessary to detect its appearance to prevent the outflow of capacitors with mixing specifications, leakage, bulging, reverse polarity, holes, poor sealing, and other defects, which will ultimately (increase) affect the quality of the finished product.

[0003] In Chinese Patent Application No.: CN201821770443.9, there is disclosed an electrolytic capacitor appearance detection structure. The device includes a substrate, a rotating main machine, a capacitor guide groove, a main machine heightening bracket, a qualified product basin, and a defective product basin. The substrate is horizontally arranged, the main machine heightening bracket is arranged on the substrate, the rotating main machine is arranged on the main machine heightening bracket, the capacitor guide groove is inclinedly arranged on the substrate and is located on one side of the rotating main machine. One end of the capacitor guide groove is the high end, and the other end is the low end. During the use of this device, the capacitor is rotated to detect its appearance. During the operation of the machine, the rotation speed of the capacitor is relatively fast, which is not conducive to discovering its appearance defects and is prone to the phenomenon of missed detection. Moreover, during the capacitor detection process of this device, the detection efficiency is relatively low during the capacitor transmission process, which is not conducive to popularization and use.

[0004] To solve the above technical problems, an automatic capacitor full-inspection machine (patent number: 202020118579.2) is disclosed in China, which includes a feeding device, a first conveying device, a second conveying device, a vision inspection device and a discharging device. The feeding device, the first conveying device, the second conveying device and the discharging device are arranged in sequence and connected end to end. The vision inspection device corresponds to the first conveying device and the second conveying device. The feeding device is used to individually place capacitors onto the first conveying device. The first conveying device is used to convey the capacitors to the second conveying device. The vision inspection device is used to conduct vision inspection on the capacitors on the first conveying device and the second conveying device. The discharging device is used to discharge the capacitors inspected on the second conveying device. Although the vision inspection device disclosed in this patent realizes comprehensive inspection around the capacitors, there are still some deficiencies: 1. During actual use, when the capacitors vibrate and are transported from the feeding device to the first conveying device, the capacitors will bounce up and down under the vibration of the feeding device, which is not conducive to the stable transportation of the capacitors. Most of the time, they are off-position, thus affecting subsequent appearance inspection; 2. It does not have a light-shielding device, resulting in poor inspection effect and unable to accurately inspect the defects on the side of the capacitor body; 3. The structure is not compact, the lens distribution is disordered, and it is inconvenient to adjust the machine, affecting the inspection efficiency and accuracy; 4. Although the existing discharging device realizes discharging of the capacitors, it does not classify and filter the good products, re-inspection products and defective products, and the degree of automation needs to be improved. Summary of the Invention

[0005] One of the purposes of the present invention is to provide a full-automatic capacitor appearance inspection device for the deficiencies of the prior art, which can improve the appearance inspection efficiency, accuracy and versatility of capacitors.

[0006] To solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A fully automatic capacitor appearance detection device, comprising a feeding mechanism, a first conveying mechanism, a second conveying mechanism, a third conveying mechanism, a first detection mechanism, a second detection mechanism, a third detection mechanism, a discharging mechanism and a control and analysis mechanism electrically connected thereto. The first conveying mechanism is connected to the feeding mechanism, one end of the second conveying mechanism is connected to the first conveying mechanism, the other end of the second conveying mechanism is connected to the third conveying mechanism, the discharging mechanism is connected to the third conveying mechanism, the first detection mechanism detects the products conveyed on the first conveying mechanism, the second detection mechanism detects the products conveyed on the second conveying mechanism, the third detection mechanism detects the products conveyed on the third conveying mechanism, and the positions of the first conveying mechanism and the third conveying mechanism are both higher than the position of the second conveying mechanism. Generally, the appearance detection of the capacitor is carried out in three sections: the upper surface, the periphery and the lower surface. The present invention is provided with three conveying mechanisms and three detection mechanisms, and their rapid and efficient cooperation realizes the appearance detection of the capacitor, improving the efficiency, accuracy, versatility and automation degree of the capacitor appearance detection; among them, the first detection mechanism and the third detection mechanism can detect the upper surface or the lower surface according to needs. When checking the lower surface, the corresponding detection mechanism can also detect the lead part at the lower end of the capacitor, which can be realized only by changing their positions. When it is necessary to detect the upper surface of the capacitor, the corresponding detection mechanism is arranged above, and when it is necessary to detect the lower surface of the capacitor, the corresponding detection mechanism is arranged below. This greatly improves the versatility of the capacitor appearance detection and is applicable to capacitor products of various specifications and sizes.

[0008] As an improvement of the fully automatic capacitor appearance detection device of the present invention, the feeding mechanism includes a feeding vibrating disk and a conveying buffer transition mechanism connected to the feeding vibrating disk. The conveying buffer transition mechanism includes a feeding mechanism and a linear vibrating mechanism connected to the feeding mechanism. The feeding mechanism includes a left non-powered mechanism, a right non-powered mechanism in clearance fit with the left non-powered mechanism, and a height limiting mechanism arranged on the left non-powered mechanism and the right non-powered mechanism; the left non-powered mechanism includes a left fixing plate and a left baffle guardrail arranged on the left fixing plate, the right non-powered mechanism includes a right fixing plate and a right baffle guardrail arranged on the right fixing plate, there is a gap between the left fixing plate and the right fixing plate, and the left baffle guardrail and the right baffle guardrail are arranged in parallel.

[0009] As an improvement of the fully automatic capacitor appearance detection device of the present invention, the left fixing plate and the right fixing plate are on the same horizontal plane, and a plurality of guiding mechanisms are evenly distributed at intervals on the left fixing plate and the right fixing plate. Two adjacent guiding mechanisms are respectively arranged on both sides of the gap; each guiding mechanism includes a guiding seat and a magnet bar inserted into the guiding seat.

[0010] As an improvement of the full-automatic capacitance appearance detection device described in the present invention, the height-limiting mechanism includes a height-limiting mounting base and an adjusting block arranged on the height-limiting mounting base. The height-limiting mounting base is arranged in an "n" shape structure. One end of the feeding mechanism is provided with a docking mechanism, which includes an adjusting bottom plate, a mounting block connected to the top of the adjusting bottom plate, and a left support plate and a right support plate fixedly arranged on the mounting block. The linear vibration mechanism includes a mounting bottom plate, an up-and-down adjusting block fixedly arranged on the mounting bottom plate, and a linear vibration feeder fixedly arranged on the up-and-down adjusting block.

[0011] As an improvement of the full-automatic capacitance appearance detection device described in the present invention, the second detection mechanism includes at least two light-blocking devices arranged on the second conveying mechanism, a detection device corresponding to the light-blocking device, and a mounting plate. The mounting plate is erected above the light-blocking device. The detection device is installed on the mounting plate. The detection device is provided with a vision camera, and the light-blocking device is provided with a penetration hole corresponding to the vision camera. The light-blocking device includes a first body and a second body hinged to the first body. The number of the penetration holes is multiple, and the multiple penetration holes are evenly distributed at the bottom of the second body. The first body and the second body form a cylindrical hollow structure. The number of the light-blocking devices and the detection devices is two, and the two light-blocking devices are arranged side by side. One of the detection devices is arranged on one side of the mounting plate, and the other detection device is arranged on the other side of the mounting plate.

[0012] As an improvement of the full-automatic capacitance appearance detection device described in the present invention, the detection device includes a semi-circular bottom plate, an arc adjusting plate, a front-and-rear adjusting slide, a slide plate, an up-and-down adjusting plate, and a camera fixing plate. The camera fixing plate is fixed at the end of the up-and-down adjusting plate, and the vision camera is fixedly arranged on the bottom surface of the camera fixing plate. The semi-circular bottom plate is fixed above the light-blocking device. The arc adjusting plate is arranged on the arc bottom plate. The slide plate is slidably connected to the arc adjusting plate through the front-and-rear adjusting slide. One end of the up-and-down adjusting plate is connected to the slide plate, and the other end of the up-and-down adjusting plate is connected to the vision camera. The up-and-down adjusting plate is provided with an adjusting groove, and the end of the slide plate is fixedly connected to the adjusting groove. The number of the semi-circular bottom plate, the arc adjusting plate, the front-and-rear adjusting slide, the slide plate, and the up-and-down adjusting plate is at least four, and the semi-circular bottom plate, the arc adjusting plate, the front-and-rear adjusting slide, the slide plate, and the up-and-down adjusting plate are arranged in an arc shape.

[0013] As an improvement of the full-automatic capacitor appearance detection device described in the present invention, the blanking mechanism includes a rejection mechanism and a classification and filtering mechanism docked with the rejection mechanism and the third conveying mechanism. The classification and filtering mechanism includes a good product collection mechanism, a re-inspection product collection mechanism, and a defective product collection mechanism. The good product collection mechanism is arranged at the end of the third conveying mechanism. The re-inspection product collection mechanism and the defective product collection mechanism are both arranged below the rejection mechanism. The good product collection mechanism, the re-inspection product collection mechanism, and the defective product collection mechanism are integrated into a box structure. The good product collection mechanism includes a first good product collection box and a second good product collection box arranged side by side adjacent to the first good product collection box. The re-inspection product collection mechanism includes a re-inspection product box and a re-inspection aisle corresponding to the re-inspection product box. The defective product collection mechanism includes a defective product box and a defective product aisle corresponding to the defective product box.

[0014] As an improvement of the full-automatic capacitor appearance detection device described in the present invention, the rejection mechanism includes a defective product rejection mechanism and a re-inspection product rejection mechanism arranged side by side with the defective product rejection mechanism. The structures of the defective product rejection mechanism and the re-inspection product rejection mechanism are the same. Both the defective product rejection mechanism and the re-inspection product rejection mechanism include a fixed frame, a rejection cylinder arranged on the fixed frame, a middle protection member fixed on the fixed frame, and a rejection part connected to the output end of the rejection cylinder and inserted through the middle protection member.

[0015] As an improvement of the full-automatic capacitor appearance detection device described in the present invention, the blanking mechanism further includes a material distribution mechanism arranged at the end of the third conveying mechanism. The material distribution mechanism includes a material distribution frame, a material distribution cylinder arranged on the material distribution frame, a rotating shaft connected to the output end of the material distribution cylinder, a material distribution block arranged at the end of the rotating shaft, and a connecting block connecting the rotating shaft and the material distribution cylinder. The material distribution block is located above the space between the first good product collection box and the second good product collection box. The material distribution frame is fixedly connected to the fixed frame. Both the fixed frame and the material distribution frame are arranged above the third conveying mechanism.

[0016] Another object of the present invention is to provide a full-automatic capacitor appearance detection method, including the following steps:

[0017] Step 1, place the capacitor to be detected in the loading mechanism, and vibrate the capacitor through the loading mechanism to enter the first conveying mechanism;

[0018] Step 2, after entering the first conveying mechanism, the first detection mechanism performs an upper surface or lower surface detection on the capacitor, and the data obtained after the detection is fed back to the control and analysis mechanism. Then the capacitor flows into the second conveying mechanism.

[0019] Step 3: After entering the second conveying mechanism, the second detection mechanism performs a peripheral appearance inspection on the capacitor, and the data obtained after the inspection is fed back to the control and analysis mechanism. Then, the capacitor flows into the third conveying mechanism;

[0020] Step 4: After entering the third conveying mechanism, the third detection mechanism performs an inspection on the lower surface or the upper surface of the capacitor, and the data obtained after the inspection is fed back to the control and analysis mechanism. Finally, the capacitor flows into the blanking mechanism;

[0021] Step 5: After entering the blanking mechanism, the blanking mechanism classifies and filters the capacitors to form qualified products, products to be reinspected, and defective products. Description of the Drawings

[0022] The drawings described herein are used to provide a further understanding of the present invention and form a part of the present invention. The schematic embodiments and descriptions thereof of the present invention are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0023] Figure 1 is a schematic structural diagram of the present invention.

[0024] Figure 2 is a schematic structural diagram of the loading mechanism and the first conveying mechanism of the present invention.

[0025] Figure 3 is Figure 2 one of the partial structural diagrams in

[0026] Figure 4 is Figure 2 the second of the partial structural diagrams in

[0027] Figure 5 is Figure 2 the third of the partial structural diagrams in

[0028] Figure 6 is a schematic structural diagram of the second detection mechanism and the second conveying mechanism of the present invention.

[0029] Figure 7 is Figure 6 a schematic structural diagram of the light blocking device in

[0030] Figure 8 is a schematic structural diagram of the blanking mechanism and the third conveying mechanism of the present invention.

[0031] Figure 9 is Figure 8 an enlarged view of part A in Detailed Embodiments

[0032] As used in the specification and claims, certain terms are used to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. The specification and claims do not distinguish components by the difference in names, but by the difference in functions of the components. As used throughout the specification and claims, the term "comprising" is an open-ended term and should be interpreted as "comprising but not limited to". "Substantially" means within an acceptable error range. Those skilled in the art can solve the technical problems within a certain error range and basically achieve the technical effects.

[0033] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0034] In the present invention, unless otherwise clearly specified and defined, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] The present invention will be further described in detail below with reference to the accompanying drawings, but it is not a limitation of the present invention.

[0036] Embodiment 1

[0037] Such as Figures 1 to 9As shown, a fully automatic capacitor appearance detection device includes a feeding mechanism 1, a first conveying mechanism 2, a second conveying mechanism 3, a third conveying mechanism 4, a first detection mechanism 5, a second detection mechanism 6, a third detection mechanism 7, a discharging mechanism 8, and a control and analysis mechanism 9 electrically connected to them. The first conveying mechanism 2 is connected to the feeding mechanism 1. One end of the second conveying mechanism 3 is connected to the first conveying mechanism 2, and the other end of the second conveying mechanism 3 is connected to the third conveying mechanism 4. The discharging mechanism 8 is connected to the third conveying mechanism 4. The first detection mechanism 5 detects the products conveyed on the first conveying mechanism 2, the second detection mechanism 6 detects the products conveyed on the second conveying mechanism 3, and the third detection mechanism 7 detects the products conveyed on the third conveying mechanism 4. The positions of the first conveying mechanism 2 and the third conveying mechanism 4 are both higher than the position of the second conveying mechanism 3, and the position heights of the first conveying mechanism 2 and the third conveying mechanism 4 are quite the same. The best state is that they are on the same horizontal plane. When detecting the upper surface or the lower surface of the capacitor, the corresponding first detection mechanism 5 and third detection mechanism 7 do not need to adjust the machine anymore, which improves the detection accuracy and efficiency of the capacitor appearance. The first conveying mechanism 2 and the third conveying mechanism 4 are used to clamp the capacitor body part, and the upper surface and the lower surface of the capacitor are detected through the first detection mechanism 5 and the third detection mechanism 7. Specifically, which of the first detection mechanism 5 and the third detection mechanism 7 detects the upper surface or the lower surface depends on the demand. If the first detection mechanism 5 first detects the lower surface, then the third detection mechanism 7 will detect the upper surface subsequently; if the first detection mechanism 5 first detects the upper surface, then the third detection mechanism 7 will detect the lower surface subsequently. In addition, the first detection mechanism 5 and the third detection mechanism 7 can also be set to detect the upper surface or the lower surface simultaneously, and corresponding lenses can be set below the corresponding conveying mechanisms. The second conveying mechanism 3 is used to clamp the pins of the capacitor, and the second detection mechanism 6 performs a full-range detection on the periphery of the capacitor body, so as to realize the detection of the appearance periphery of the capacitor.

[0038] Preferably, the feeding mechanism 1 includes a feeding vibrating bowl 11 and a conveying buffer transition mechanism 12 connected to the feeding vibrating bowl 11. The conveying buffer transition mechanism 12 includes a material conveying mechanism 121 and a linear vibrating mechanism 122 connected to the material conveying mechanism 121. The material conveying mechanism 121 includes a left non-powered mechanism 1211, a right non-powered mechanism 1212 that is in clearance fit with the left non-powered mechanism 1211, and a height limiting mechanism 1213 disposed between the left non-powered mechanism 1211 and the right non-powered mechanism 1212. The left non-powered mechanism 1211 includes a left fixing plate 12111 and a left baffle guardrail 12112 disposed on the left fixing plate 12111. The right non-powered mechanism 1212 includes a right fixing plate 12121 and a right baffle guardrail 12122 disposed on the right fixing plate 12121. There is a gap between the left fixing plate 12111 and the right fixing plate 12121, and the left baffle guardrail 12112 and the right baffle guardrail 12122 are arranged in parallel. When detecting the appearance of the capacitor, the capacitor enters the material conveying mechanism 121 of the present invention from the feeding mechanism 1, and the capacitor slowly flows through the gap between the left non-powered mechanism 1211 and the right non-powered mechanism 1212, realizing the correction of the position of the capacitor, so as to be smoothly transported to the first conveying mechanism 2, thereby improving the appearance detection efficiency and accuracy of the capacitor.

[0039] Preferably, the left fixing plate 12111 and the right fixing plate 12121 are on the same horizontal plane. Of course, the left fixing plate 12111 and the right fixing plate 12121 may not be on the same horizontal plane, as long as the capacitor can be smoothly guided and conveyed under the vibration of the linear vibrating mechanism 122. A plurality of guiding mechanisms 1214 are evenly distributed at intervals on the left fixing plate 12111 and the right fixing plate 12121. Two adjacent guiding mechanisms 1214 are respectively disposed on both sides of the gap. Each guiding mechanism 1214 includes a guiding seat 12141 and a magnet bar 12142 inserted into the guiding seat 12141. Since the capacitor has pin feet made of iron material, the corresponding magnet bar 12142 can be used to align the capacitor, thereby realizing the efficient detection of the appearance of the capacitor.

[0040] Preferably, the height-limiting mechanism 1213 includes a height-limiting mounting base 12131 and an adjusting block 12132 disposed on the height-limiting mounting base 12131. The height-limiting mounting base 12131 is arranged in an "n" shape, which is convenient for the capacitor to be conveyed from below the height-limiting mounting base 12131 to the subsequent workstations. The adjusting block 12132 is used to adjust the passing height of the capacitor detection. Of course, the height-limiting mounting base 12131 can also be arranged in other structures according to requirements, and no specific restrictions are made here. One end of the feeding mechanism 121 is provided with a docking mechanism 123. The docking mechanism 123 includes an adjusting bottom plate 1231, a mounting block 1232 connected to the top of the adjusting bottom plate 1231, and a left support plate 1233 and a right support plate 1234 fixedly arranged on the mounting block 1232. A first conveying mechanism 2 is installed above the docking mechanism 123, so as to realize the perfect docking of the feeding mechanism 121 and the first conveying mechanism 2, so that the capacitor can smoothly flow into the first conveying mechanism 2 from the feeding mechanism 121 without any interference. The linear vibration mechanism 122 includes a mounting bottom plate 1221, an up-and-down adjusting block 1222 fixedly arranged on the mounting bottom plate 1221, and a linear vibration feeder 1223 fixedly arranged on the up-and-down adjusting block 1222. The linear vibration feeder 1223 is used to provide a vibration source for the feeding mechanism 121, and the up-and-down adjusting block 1222 realizes the adjustment of the up-and-down positions of the linear vibration feeder 1223 and the feeding mechanism 121. The mounting bottom plate 1221 is used to be mounted on the whole machine.

[0041] During the use process, when multiple capacitors enter the feeding mechanism 121 from the feeding mechanism 1, the multiple capacitors slowly flow between the gaps of the left non-powered mechanism 1211 and the right non-powered mechanism 1212, and are arranged one by one and slowly flow to the end of the feeding mechanism 121. During the conveying process, the position correction of the capacitors is realized. Finally, each corrected capacitor is smoothly transported into the first conveying mechanism 2, so as to realize the detection of the appearance of the capacitors, make full preparations for the subsequent appearance detection of the capacitors, and make each capacitor entering the first conveying mechanism 2 belong to the standard introduction position, thereby greatly improving the appearance detection efficiency and accuracy of the capacitors.

[0042] Preferably, the second detection mechanism 6 includes at least two light-blocking devices 51 disposed on the second conveying mechanism 3, a detection device 52 corresponding to the light-blocking device 51, and a mounting plate 53. The mounting plate 53 is erected above the light-blocking device 51. The detection device 52 is mounted on the mounting plate 53. The detection device 52 is provided with a vision camera 521. The light-blocking device 51 is provided with a through hole 511 corresponding to the vision camera 521. The light-blocking device 51 includes a first body 512 and a second body 513 hinged to the first body 512. The number of through holes 511 is multiple, and the multiple through holes 511 are evenly distributed at the bottom of the second body 513. The number of the light-blocking devices 51 and the detection devices 52 is two. The two light-blocking devices 51 are arranged side by side. One detection device 52 is disposed on one side of the mounting plate 53, and the other detection device 52 is disposed on the other side of the mounting plate 53. One light-blocking device 51 and one detection device 52 form a first detection system, which first detects the appearance of a 180-degree area of the capacitor. The other light-blocking device 51 and the other detection device 52 form a second detection system. The second detection system is used to detect the product after being detected by the first detection system, detect the remaining 180-degree area of the capacitor, and finally complete the detection of the entire appearance periphery of the capacitor. The present invention is provided with two detection systems to facilitate the all-round detection of the appearance periphery of the capacitor. In addition, if only one detection system is provided, the structure will become complicated, and corresponding light-blocking problems will also occur, which is not conducive to the detection of the corresponding product appearance. Of course, the present invention can also set the detection system to multiple, such as three or four, which is set according to the actual use situation.

[0043] In this embodiment, the first body 512 and the second body 513 are set as a cylindrical hollow structure. The setting of the cylindrical hollow structure facilitates the detection of the appearance of circular products. When taking pictures, the image display is more uniform, and there will be no phenomenon of uneven brightness, which is convenient for the rapid analysis and calculation of subsequent appearance detection parameters. When using the light-blocking device 51 with the above cylindrical hollow structure to detect the capacitor, when the capacitor enters the central position of the cylindrical hollow structure, the photographing task is executed, so as to quickly complete the detection of the capacitor appearance (the general algorithm test time is 180 - 220 ms, and the photographing time is 15 - 25 ms). During the process of detecting the capacitor, the part of the light-blocking device 51 without the through hole 511 can achieve the function of light blocking, improving the shooting effect of the vision camera 521.

[0044] Preferably, the detection device 52 includes a semi-circular bottom plate 522, an arc adjustment plate 523, a front-back adjustment slide 524, a slide plate 525, an up-down adjustment plate 526, and a camera fixing plate 527. The camera fixing plate 527 is fixed to the end of the up-down adjustment plate 526, and the vision camera 521 is fixedly arranged on the bottom surface of the camera fixing plate 527. The vision camera 521 can move along with the movement of the up-down adjustment plate 526, which is convenient for the positioning of the vision camera 521. The semi-circular bottom plate 522 is fixed above the light shielding device 51. The arc adjustment plate 523 is arranged on the semi-circular bottom plate 522. The slide plate 525 is slidably connected to the arc adjustment plate 523 through the front-back adjustment slide 524. One end of the up-down adjustment plate 526 is connected to the slide plate 525, and the other end of the up-down adjustment plate 526 is connected to the vision camera 521. The up-down adjustment plate 526 is provided with an adjustment groove 528, and the end of the slide plate 525 is fixedly connected to the adjustment groove 528. Due to the cooperative adjustment of the front-back adjustment slide 524 and the up-down adjustment plate 526, the positioning of the position of the vision camera 521 can be realized, so that the vision camera 521 can quickly locate and align with the position of the penetration hole 511, thereby realizing the photographing of the appearance of the corresponding product by the vision camera 521. The number of the semi-circular bottom plate 522, the arc adjustment plate 523, the front-back adjustment slide 524, the slide plate 525, and the up-down adjustment plate 526 is at least four, and the semi-circular bottom plate 522, the arc adjustment plate 523, the front-back adjustment slide 524, the slide plate 525, and the up-down adjustment plate 526 are arranged in an arc shape. The above structural arrangement enables the four vision cameras 521 installed at one end of the up-down adjustment plate 526 to detect at least 180-degree area around the capacitor. The four vision cameras 521 in this embodiment are evenly distributed on one side of the light shielding device 51, and the distances from them to the central position of the light shielding device 51 are equal, so that the photographing effects of the respective vision cameras 521 are the same.

[0045] Through the cooperative adjustment of the front-back adjustment slide 524 and the up-down adjustment plate 526, the vision camera 521 of the present invention is aligned with the corresponding penetration hole 511, and the distance between the lens and the central position of the light shielding device 51 is adjusted (generally 105 - 149 mm) so that the vision camera 521 reaches the best photographing effect. At this time, the machine adjustment is basically completed. Then, the second conveying mechanism 3 is started to make the capacitor flow through the light shielding device 51 in the first detection system. When the capacitor reaches the central position of the light shielding device 51, the corresponding vision camera 521 is started to take a photo, record the corresponding data, upload it and calculate. Then it flows through the light shielding device 51 in the second detection system, and the corresponding steps of the first detection system are executed to complete the detection of the remaining capacitor appearance. The data is continuously uploaded and calculated, and finally the detection data around the entire capacitor appearance is obtained, thereby completing the detection of the capacitor appearance around.

[0046] Preferably, the blanking mechanism 8 includes a rejection mechanism 81 and a classification and filtering mechanism 82 that interfaces with the rejection mechanism 81 and the third conveying mechanism 4. The classification and filtering mechanism 82 includes a good product collection mechanism 821, a re-inspection product collection mechanism 822, and a defective product collection mechanism 823. The good product collection mechanism 821 is disposed at the end of the third conveying mechanism 4, and both the re-inspection product collection mechanism 822 and the defective product collection mechanism 823 are disposed below the rejection mechanism 81. The good product collection mechanism 821, the re-inspection product collection mechanism 822, and the defective product collection mechanism 823 are integrated into a box structure. The good product collection mechanism 821 includes a first good product collection box 8211 and a second good product collection box 8212 arranged adjacent to and side by side with the first good product collection box 8211. Arranging the first good product collection box 8211 and the second good product collection box 8212 adjacent to each other facilitates subsequent material separation. When the first good product collection box 8211 is full of good products, they are introduced into the second good product collection box 8212. The re-inspection product collection mechanism 822 includes a re-inspection product box 8221 and a re-inspection aisle 8222 corresponding to the re-inspection product box 8221. Re-inspection products can flow into the re-inspection product box 8221 through the re-inspection aisle 8222, thereby achieving the classification of re-inspection products. The defective product collection mechanism 823 includes a defective product box 8231 and a defective product aisle 8232 corresponding to the defective product box 8231. Defective products can flow into the defective product box 8231 through the defective product aisle 8232, thereby achieving the classification of defective products.

[0047] Preferably, the rejection mechanism 81 includes a defective product rejection mechanism 811 and a re-inspection product rejection mechanism 812 arranged side by side with the defective product rejection mechanism 811. The defective product rejection mechanism 811 and the re-inspection product rejection mechanism 812 have the same structure. Both the defective product rejection mechanism 811 and the re-inspection product rejection mechanism 812 include a fixed frame 813, a rejection cylinder 814 disposed on the fixed frame 813, a middle protection member 815 fixed to the fixed frame 813, and a rejection portion 816 connected to the output end of the rejection cylinder 814 and inserted through the middle protection member 815. When it is necessary to reject defective products or re-inspection products, the corresponding rejection cylinder 814 drives the rejection portion 816 to act, so that the defective products or re-inspection products are rejected. The middle protection member 815 is to ensure that the rejection portion 816 is not offset, making the rejection more accurate and improving the rejection efficiency. The rejection portion 816 is set as a square structure, which is convenient for rejecting the corresponding capacitors.

[0048] Preferably, the blanking mechanism 8 further includes a material distribution mechanism 83 disposed at the end of the third conveying mechanism 4. The material distribution mechanism 83 includes a material distribution frame 831, a material distribution cylinder 832 disposed on the material distribution frame 831, a rotating shaft 833 connected to the output end of the material distribution cylinder 832, a material distribution block 834 disposed at the end of the rotating shaft 833, and a connecting block 835 connecting the rotating shaft 833 and the material distribution cylinder 832. The material distribution block 834 is located above the first good product collection box 8211 and the second good product collection box 8212. The material distribution efficiency of good products can be improved by the material distribution mechanism 83 of this embodiment. The first good product collection box 8211 and the second good product collection box 8212 can store good products by switching with each other, improving the overall detection efficiency. The material distribution frame 831 is fixedly connected to the fixed frame 813, and both the fixed frame 813 and the material distribution frame 831 are disposed above the third conveying mechanism 4, facilitating the docking of products.

[0049] After the capacitor product is detected on the upper part, periphery and lower part, it is then conveyed by the third conveying mechanism 4 of the present invention to the corresponding position below the rejection mechanism 81. If the product is a defective product, the defective product rejection mechanism 811 starts to work and rejects the defective product into the defective product box 8231. If the product is a reinspection product, the reinspection product rejection mechanism 812 starts to work and rejects the reinspection product into the reinspection product box 8221. If the product is a good product, the product will not stay at the rejection mechanism 81 and directly flows through the rejection mechanism 81 to the position of the material distribution block 834. At this time, if the products in the first good product collection box 8211 are not full, the material distribution mechanism 83 does not work. If the products in the first good product collection box 8211 are full, the material distribution mechanism 83 will work. The material distribution cylinder 832 drives the rotating shaft 833 to drive the material distribution block 834 to dock with the second good product collection box 8212, so that the good products flow into the second good product collection box 8212. In summary, the present invention can efficiently classify and filter good products, reinspection products and defective products, greatly improving the automation degree of blanking.

[0050] Embodiment 2

[0051] As Figures 1 to 9 shown, the equipment of Embodiment 1 is used for the capacitor appearance detection method, including the following steps:

[0052] Step 1, place the capacitor to be detected in the feeding mechanism 1, and vibrate and convey the capacitor through the feeding mechanism 1 into the first conveying mechanism 2.

[0053] Step 2, after entering the first conveying mechanism 2, the first detection mechanism 5 performs the detection on the upper surface or the lower surface of the capacitor, and the data obtained after the detection is fed back to the control and analysis mechanism 9, and then the capacitor flows into the second conveying mechanism 3.

[0054] Step 3: After entering the second conveying mechanism 3, the second detection mechanism 6 performs a peripheral appearance inspection on the capacitor. The data obtained after the inspection is fed back to the control and analysis mechanism 9, and then the capacitor flows into the third conveying mechanism 4;

[0055] Step 4: After entering the third conveying mechanism 4, the third detection mechanism 7 performs an inspection on the lower surface or the upper surface of the capacitor. The data obtained after the inspection is fed back to the control and analysis mechanism 9, and finally the capacitor flows into the blanking mechanism 8;

[0056] Step 5: After entering the blanking mechanism 8, the blanking mechanism 8 classifies and filters the capacitors to form qualified products, products to be reinspected, and defective products.

[0057] By using the above detection method to detect capacitors, the detection efficiency is increased by 10-20%, and capacitors of different sizes can be detected. The corresponding conveying mechanism and detection mechanism are adjustable, improving the versatility of the detection.

[0058] The above description shows and describes several preferred embodiments of the present invention. However, as mentioned above, it should be understood that the present invention is not limited to the form disclosed herein, should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications, and environments, and can be changed within the scope of the inventive concept described herein through the above teachings or the techniques or knowledge in related fields. Any changes and variations made by those skilled in the art without departing from the spirit and scope of the present invention shall fall within the protection scope of the appended claims of the present invention.

Claims

1. An automatic capacitor appearance detection device, characterized in that: It includes a feeding mechanism, a first conveying mechanism, a second conveying mechanism, a third conveying mechanism, a first detection mechanism, a second detection mechanism, a third detection mechanism, a discharging mechanism and a control and analysis mechanism electrically connected to them. The first conveying mechanism is docked to the feeding mechanism. One end of the second conveying mechanism is docked to the first conveying mechanism, and the other end of the second conveying mechanism is docked to the third conveying mechanism. The discharging mechanism is docked to the third conveying mechanism. The first detection mechanism detects the products conveyed on the first conveying mechanism, the second detection mechanism detects the products conveyed on the second conveying mechanism, and the third detection mechanism detects the products conveyed on the third conveying mechanism. The positions of the first conveying mechanism and the third conveying mechanism are both higher than the position of the second conveying mechanism; the position heights of the first conveying mechanism and the third conveying mechanism are quite equivalent; the first conveying mechanism and the third conveying mechanism are used to clamp the body part of the capacitor, and the upper and lower surfaces of the capacitor are detected by the first detection mechanism and the third detection mechanism; the second conveying mechanism is used to clamp the lead pins of the capacitor. The feeding mechanism includes a feeding vibrating disk and a conveying buffer transition mechanism docked to the feeding vibrating disk. The conveying buffer transition mechanism includes a feeding mechanism and a linear vibrating mechanism connected to the feeding mechanism. The feeding mechanism includes a left non-powered mechanism, a right non-powered mechanism that is in clearance fit with the left non-powered mechanism, and a height limiting mechanism erected on the left non-powered mechanism and the right non-powered mechanism; the left non-powered mechanism includes a left fixing plate and a left baffle guardrail arranged on the left fixing plate, the right non-powered mechanism includes a right fixing plate and a right baffle guardrail arranged on the right fixing plate. There is a gap between the left fixing plate and the right fixing plate, and the left baffle guardrail and the right baffle guardrail are arranged in parallel. The left fixing plate and the right fixing plate are on the same horizontal plane, and a plurality of guiding mechanisms are evenly distributed at intervals on the left fixing plate and the right fixing plate. Two adjacent guiding mechanisms are respectively arranged on both sides of the gap; each guiding mechanism includes a guiding seat and a magnet bar inserted into the guiding seat. The second detection mechanism includes at least two light blocking devices arranged on the second conveying mechanism, a detection device corresponding to the light blocking device, and a mounting plate. The mounting plate is erected above the light blocking device, the detection device is installed on the mounting plate, the detection device is provided with a vision camera, and the light blocking device is provided with a penetration hole corresponding to the vision camera; the light blocking device includes a first body and a second body hinged to the first body. The number of the penetration holes is multiple, and multiple penetration holes are evenly distributed at the bottom of the second body; the first body and the second body form a cylindrical hollow structure; the number of the light blocking devices and the detection devices is two, and the two light blocking devices are arranged side by side. One of the detection devices is arranged on one side of the mounting plate, and the other detection device is arranged on the other side of the mounting plate. The detection device includes a semi-circular bottom plate, an arc adjustment plate, a front-back adjustment slide, a slide plate, an up-down adjustment plate, and a camera fixing plate. The camera fixing plate is fixed to the end of the up-down adjustment plate, and the vision camera is fixedly arranged on the bottom surface of the camera fixing plate. The semi-circular bottom plate is fixed above the light shielding device. The arc adjustment plate is arranged on the arc bottom plate. The slide plate is slidably connected to the arc adjustment plate through the front-back adjustment slide. One end of the up-down adjustment plate is connected to the slide plate, and the other end of the up-down adjustment plate is connected to the vision camera. The up-down adjustment plate is provided with an adjustment groove, and the end of the slide plate is fixedly connected to the adjustment groove. The number of the semi-circular bottom plate, the arc adjustment plate, the front-back adjustment slide, the slide plate, and the up-down adjustment plate is at least four, and the semi-circular bottom plate, the arc adjustment plate, the front-back adjustment slide, the slide plate, and the up-down adjustment plate are arranged in an arc shape.

2. The fully automatic capacitor appearance detection device according to claim 1, wherein: The height limiting mechanism includes a height limiting mounting seat and an adjustment block arranged on the height limiting mounting seat. The height limiting mounting seat is arranged in an "n" shape structure. One end of the material conveying mechanism is provided with a docking mechanism. The docking mechanism includes an adjustment bottom plate, a mounting block connected to the top of the adjustment bottom plate, and a left support plate and a right support plate fixedly arranged on the mounting block. The linear vibration mechanism includes a mounting bottom plate, an up-down adjustment block fixedly arranged on the mounting bottom plate, and a linear vibration feeder fixedly arranged on the up-down adjustment block.

3. The fully automatic capacitor appearance detection device according to claim 1, characterized in that: The blanking mechanism includes a rejection mechanism and a classification and filtering mechanism docked with the rejection mechanism and the third conveying mechanism. The classification and filtering mechanism includes a good product collection mechanism, a re-inspection product collection mechanism, and a defective product collection mechanism. The good product collection mechanism is arranged at the end of the third conveying mechanism. The re-inspection product collection mechanism and the defective product collection mechanism are both arranged below the rejection mechanism. The good product collection mechanism, the re-inspection product collection mechanism, and the defective product collection mechanism are integrated into a box structure. The good product collection mechanism includes a first good product collection box and a second good product collection box arranged adjacent to and side by side with the first good product collection box. The re-inspection product collection mechanism includes a re-inspection product box and a re-inspection aisle corresponding to the re-inspection product box. The defective product collection mechanism includes a defective product box and a defective product aisle corresponding to the defective product box.

4. The fully automatic capacitor appearance detection device according to claim 3, characterized in that: The rejection mechanism includes a defective product rejection mechanism and a re-inspection product rejection mechanism arranged side by side with the defective product rejection mechanism. The structures of the defective product rejection mechanism and the re-inspection product rejection mechanism are the same. The defective product rejection mechanism and the re-inspection product rejection mechanism both include a fixed frame, a rejection cylinder arranged on the fixed frame, a middle protection part fixed on the fixed frame, and a rejection part connected to the output end of the rejection cylinder and inserted through the middle protection part.

5. The fully automatic capacitor appearance detection device according to claim 4, wherein: The blanking mechanism further includes a material distribution mechanism disposed at the end of the third conveying mechanism. The material distribution mechanism includes a material distribution frame, a material distribution cylinder disposed on the material distribution frame, a rotating shaft connected to the output end of the material distribution cylinder, a material distribution block disposed at the end of the rotating shaft, and a connecting block connecting the rotating shaft and the material distribution cylinder. The material distribution block is located above the first good product collection box and the second good product collection box. The material distribution frame is fixedly connected to the fixed frame, and both the fixed frame and the material distribution frame are disposed above the third conveying mechanism.

6. A detection method for a fully automatic capacitor appearance detection device according to any one of claims 1-5, characterized in that, It includes the following steps: Step 1: Place the capacitor to be detected in the feeding mechanism, and the vibrating feeding of the feeding mechanism conveys the capacitor into the first conveying mechanism. Step 2: After entering the first conveying mechanism, the first detection mechanism performs the detection on the upper surface or the lower surface of the capacitor, and the data obtained after the detection is fed back to the control and analysis mechanism. Then the capacitor flows into the second conveying mechanism. Step 3: After entering the second conveying mechanism, the second detection mechanism performs the detection on the peripheral appearance of the capacitor, and the data obtained after the detection is fed back to the control and analysis mechanism. Then the capacitor flows into the third conveying mechanism. Step 4: After entering the third conveying mechanism, the third detection mechanism performs the detection on the lower surface or the upper surface of the capacitor, and the data obtained after the detection is fed back to the control and analysis mechanism. Finally, the capacitor flows into the blanking mechanism. Step 5: After entering the blanking mechanism, the blanking mechanism classifies and filters the capacitor to form good products, products to be reinspected, and defective products.

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