A capacitor testing device

Abstract

The present invention provides a capacitor detection device, comprising a workbench, a first detection mechanism for detecting characters, a second detection mechanism, a third detection mechanism, and a fourth detection mechanism for detecting the capacitor body, and a plurality of placement seats, wherein the plurality of placement seats are sequentially distributed in a straight line on the workbench, wherein three adjacent placement seats are respectively provided with a first detection station, a second detection station, and a third detection station, the first detection mechanism faces the second detection station, the detection ends of the second detection mechanism are respectively vertically directed toward the placement seats provided with the detection stations, the detection ends of the third detection mechanism are respectively directed toward the opposite sides of the first detection station, and the fourth detection mechanism faces the third detection station. The present invention achieves excellent detection results and improves the yield by performing all-round detection of the lead capacitor surface through the first detection mechanism, the second detection mechanism, the third detection mechanism, and the fourth detection mechanism.

Description

Technical Field

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

[0002] With the continuous development of electronic information, the demand for capacitors is getting higher and higher. Capacitor components include lead capacitors. At present, the surface quality inspection of large quantities of fine lead capacitors in China is mostly carried out by human eyes under high-power microscopes. Some product defect inspections have strict optical requirements and are difficult to judge with the naked eye under a microscope. They are judged by touching with fingers.

[0003] Moreover, due to the large output of lead capacitors, large-scale product testing often requires a large number of employees to perform highly repetitive work in the capacitor industry, which seriously damages the human eye. Manually picking up products continuously may also cause secondary damage to the capacitor products. The demand for replacing manual inspection with automated equipment has existed for many years, but the provided testing equipment cannot test a variety of different models of products, which has great limitations. The lead capacitors are driven to move slowly through the transmission line, and the moving lead capacitors are tested by the testing device. However, the detection results of the moving lead capacitors may have certain deviations. The detection of surface defects and characters on the lead capacitors requires the use of different equipment for two-step testing, which is inconvenient and has poor detection effect.

[0004] In view of this, it is indeed necessary to provide a technical solution to the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a capacitor detection device to solve the problem that the detection is convenient but the detection effect is poor in the above detection devices.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A capacitor detection device includes a workbench, a first detection mechanism for detecting characters, a second detection mechanism, a third detection mechanism and a fourth detection mechanism for detecting a capacitor body, and at least five placement seats, wherein the five placement seats are distributed in a straight line on the workbench, three of which are respectively provided with a first detection station, a second detection station and a third detection station, the first detection mechanism faces the second detection station, the detection ends of the second detection mechanism are respectively vertically directed toward the placement seats with the detection stations, the detection ends of the third detection mechanism are respectively directed toward the opposite sides of the first detection station, and the fourth detection mechanism faces the third detection station.

[0008] As an improvement to the capacitor detection equipment, the first detection mechanism includes three first visual cameras and a curved plate, the inner side of the curved plate is close to the second detection station, the detection ends of two of the first visual cameras pass through the curved plate and illuminate the second detection station, and the two first visual cameras are symmetrically arranged, and the other first visual camera is located diagonally above the second detection station.

[0009] As an improvement to the capacitor detection equipment, the second detection mechanism includes a slide rail and a second visual camera. There are at least three second visual cameras and at least two slide rails. The second visual cameras whose detection ends are irradiated at the second detection station and the third detection station are both provided with sliders, and the sliders are slidably connected to the corresponding slide rails.

[0010] As an improvement to the capacitor detection equipment, the third detection mechanism includes a third visual camera and a baffle. There are at least two third visual cameras and at least two baffles, which are evenly arranged on both sides of the first detection station. The third visual camera cooperates with the baffle on the opposite side.

[0011] As an improvement to the capacitor detection equipment, the fourth detection mechanism includes a fourth visual camera and a first fixing bracket, a second fixing bracket and a third fixing bracket for mounting the fourth visual camera. There are at least six fourth visual cameras, all located on the same side, for detecting multiple angles on the same side of the capacitor. The first fixing bracket intersects the illumination directions of the four fourth visual cameras at the third detection station. The second fixing bracket and the third fixing bracket set the heights of the other two fourth visual cameras to be unequal, and both are lower than the height of the fourth visual camera on the first fixing bracket.

[0012] As an improvement to the capacitor detection device, a fifth detection mechanism is further included, and the fifth detection mechanism is used to detect the bottom surface of the capacitor.

[0013] As an improvement to the capacitor detection equipment, the fifth detection mechanism includes multiple fifth visual cameras, which are respectively located below the first detection station, the second detection station and the third detection station for detecting the bottom of the capacitor.

[0014] As an improvement to the capacitor testing equipment, a rotating assembly is installed between the placement seat where the second testing station and the third testing station are provided and the workbench, and the rotating assembly is used to drive the capacitor to rotate during the testing process.

[0015] As an improvement to the capacitor detection device, the rotating assembly drives the placement seat to rotate by using a servo motor as a power source.

[0016] As an improvement to the capacitor detection equipment, the transmission component is arranged on the workbench, and the transmission component is used to move the capacitor from the first detection station in sequence to the placement seat away from the first detection station for final discharge.

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

[0018] The present invention uses the first detection mechanism, the second detection mechanism, the third detection mechanism and the fourth detection mechanism to perform comprehensive detection on the characters and surface defects of the lead capacitor, so that the detection results are more accurate and a better detection effect is achieved. When detecting the lead capacitor, there is no need for frequent manual picking up, and no secondary damage is caused to it. At the same time, the yield of the lead capacitor is also improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of a capacitor detection device provided by the present invention.

[0020] Figure 2 This is one of the partial three-dimensional structural schematic diagrams of a capacitor detection device provided by the present invention.

[0021] Figure 3 This is a second partial three-dimensional structural diagram of a capacitor detection device provided by the present invention.

[0022] Figure 4 This is a schematic diagram of the three-dimensional structure of the second detection mechanism, the third detection mechanism and the fifth detection mechanism of the capacitor detection equipment provided by the present invention.

[0023] Figure 5 A schematic diagram of the three-dimensional structure of a third detection mechanism of a capacitor detection device provided by the present invention.

[0024] Figure 6 This is the third partial three-dimensional structural schematic diagram of a capacitor detection device provided by the present invention.

[0025] In the figure: 1-workbench, 2-placing seat, 3-first detection mechanism, 301-first visual camera, 302-arc plate, 4-second detection mechanism, 401-second visual camera, 402-slide rail, 403-slider, 5-third detection mechanism, 501-third visual camera, 502-baffle, 6-fourth detection mechanism, 601-fourth visual camera, 602-first fixed frame, 603-second fixed frame, 604-third fixed frame, 7-fifth detection mechanism, 701-fifth visual camera, 8-rotation assembly, 9-transmission assembly, 10-display. DETAILED DESCRIPTION

[0026] To make the technical solutions and advantages of the present invention more clear, the present invention and its beneficial effects will be described in further detail below with reference to specific implementation methods and accompanying drawings, but the implementation methods of the present invention are not limited thereto.

[0027] In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0028] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0029] The items that this capacitor testing equipment can detect include safety valve bulge, safety valve leakage, safety valve damage, sleeve warping, sleeve edge too long / too short, sleeve damage, polarization, bald head, color mixing, size mixing, character mixing (cycle, series, batch, temperature, voltage, capacity), body depression, side burst bulge, sleeve shrinkage, scalp damage, white exposure, skin head leakage, skin head paper leakage, skin head dirty, untied waist, convex skin head, slanted skin head, burnt pins and missing pins.

[0030] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6As shown, a capacitor detection device includes a workbench 1, a first detection mechanism 3 for detecting characters, a second detection mechanism 4, a third detection mechanism 5 and a fourth detection mechanism 6 for detecting the capacitor body, and a plurality of placement seats 2. The plurality of placement seats 2 are distributed in a straight line on the workbench 1, wherein three adjacent placement seats 2 are respectively provided with a first detection station, a second detection station and a third detection station, the first detection mechanism 3 faces the second detection station, the detection ends of the second detection mechanism 4 are respectively vertically facing the placement seats 2 with the detection stations, the detection ends of the third detection mechanism 5 are respectively facing the opposite sides of the first detection station, and the fourth detection mechanism 6 faces the third detection station. Specifically, the capacitor is a lead capacitor. First, the lead capacitor to be tested is placed on the rightmost placement seat 2, that is, the first testing station. The third testing mechanism 5 operates to perform side testing on the lead capacitor when it is in the first testing station and when it is moving to the second testing station to detect defects on the side of the lead capacitor or protrusions at both ends. After the lead capacitor moves to the second testing station, the third testing mechanism 5 operates to detect the characters on the side and end of the lead capacitor to prevent the production of incorrect characters or defective products with mixed characters. After the characters are tested, the lead capacitor moves to the third testing station, and then the fourth testing mechanism 6 operates to perform multi-angle detection on the side protrusions, convex skin heads and body depressions of the lead capacitor. At the same time, the second testing mechanism 4 operates to perform multi-angle detection on the first testing station, the second testing station and the third testing station respectively. The upper end surface of the lead capacitor is inspected, and the convexity or concaveness of the upper end surface of the lead capacitor is further inspected to judge the degree of the convexity or concaveness, so as to determine whether the lead capacitor is qualified. There are five placement seats 2 in total, and the remaining two placement seats 2 are located on the left side of the third inspection station. The lead capacitors inspected on the third inspection station are moved to the last two placement seats 2 on the left side in turn, and finally discharged, and the unqualified ones are placed separately from the qualified ones; the present invention uses the first inspection mechanism 3, the second inspection mechanism 4, the third inspection mechanism 5 and the fourth inspection mechanism 6 to perform all-round inspection on the characters and surface defects of the lead capacitor, so that the inspection result is more accurate and achieves a better inspection effect. In addition, when inspecting the lead capacitor, it is not necessary to manually pick it up frequently, which will not cause secondary damage to it, and also improves the yield of the lead capacitor.

[0031] The capacitor detection equipment is also provided with a display 10, which is electrically connected to the first detection mechanism 3, the second detection mechanism 4, the third detection mechanism 5 and the fourth detection mechanism 6. The detected result data are calculated by the industrial computer and finally displayed by the display 10, which is more intuitive. The display 10 has a storage function and can store the detected lead capacitance data for later viewing. Two placement seats 2 are set on the left side of the third detection station, which also have a buffering effect to avoid the lead capacitance being discharged and classified after the detection at the third detection station. It is necessary to stay on the two placement seats 2 in turn to give the display 10 time to calculate the detection data.

[0032] More preferably, the first detection mechanism 3 includes three first visual cameras 301 and a curved plate 302, the inner side of the curved plate 302 is close to the second detection station, and the detection ends of two first visual cameras 301 pass through the curved plate 302 to illuminate the second detection station, and the two first visual cameras 301 are symmetrically arranged, and the other first visual camera 301 is located diagonally above the second detection station. Specifically, the curved plate 302 is located on the front side of the second inspection station, and the two first vision cameras 301 are located on the front side of the curved plate 302, and the two first vision cameras 301 are symmetrical on the left and right. With this arrangement, the two first vision cameras 301 can better detect the characters on the front half of the side of the lead capacitor. The remaining first vision camera 301 is located directly above the curved plate 302 to detect the characters on the upper end surface of the lead capacitor. After the detection, the lead capacitor is rotated 180 degrees to be able to detect the lead capacitor in 360 degrees; and each first vision camera 301 is provided with a flash light. The flash light is on during detection to assist the first vision camera 301 in detection and prevent the light from being too dark to affect the detection results, thereby achieving a good detection effect.

[0033] More preferably, the second inspection mechanism 4 includes a slide rail 402 and a second visual camera 401, at least three second visual cameras 401 are provided, and at least two slide rails 402 are provided. The second visual cameras 401 whose detection ends are irradiated at the second inspection station and the third inspection station are both provided with a slider 403, and the slider 403 is slidably connected to the corresponding slide rail 402. Specifically, the second visual camera 401 is used to detect depressions or defects on the upper end surface of the lead capacitor. The second visual camera 401 is provided at each of the three inspection stations to detect whether the lead capacitor is damaged during the inspection process. The slide rail 402 is fixedly connected to the workbench 1. The two second visual cameras 401 on the left slide up and down on the slide rail 402 through the slider 403, and the slider 403 is fixed to the slide rail 402 by bolts. The height of the second visual camera 401 is adjusted to adapt to the detection of different types of lead capacitors, and each second visual camera 401 is also provided with a flash to prevent the light from being too dark.

[0034] More preferably, the third inspection mechanism 5 includes a third vision camera 501 and a baffle 502. At least two third vision cameras 501 and baffles 502 are provided, evenly spaced on either side of the first inspection station. The third vision cameras 501 cooperate with the baffles 502 on the opposite side. Specifically, the third vision cameras 501 are orthogonal cameras. The cooperation between the third vision cameras 501 and the baffles 502 on the opposite side ensures that the inspection results from the third vision cameras 501 are planar images, enabling better visualization of the locations of unqualified lead capacitors. Each third vision camera 501 is also equipped with a flashlight to prevent excessive light levels.

[0035] More preferably, the fourth detection mechanism 6 includes a fourth visual camera 601 and a first fixing frame 602, a second fixing frame 603 and a third fixing frame 604 for installing the fourth visual camera 601. There are at least six fourth visual cameras 601, and they are all located on the same side, for detecting multiple angles on the same side of the capacitor. The first fixing frame 602 intersects the illumination directions of the four fourth visual cameras 601 at the third detection station, and the second fixing frame 603 and the third fixing frame 604 set the heights of the other two fourth visual cameras 601 to be unequal, and both are lower than the height of the fourth visual camera 601 on the first fixing frame 602. Specifically, the detection ends of the four fourth vision cameras 601 on the first fixed frame 602 are slightly gathered together, and the detection directions of the four fourth vision cameras 601 intersect at the third detection station. The illumination directions of the four fourth vision cameras 601 are different, and the heights and illumination angles of the other two fourth vision cameras 601 arranged on the second fixed frame 603 and the third fixed frame 604 are different, and the heights of both are lower than the height of the fourth vision camera 601 on the first fixed frame 602. Such a structural design makes it possible to detect the lead capacitance of the third detection station from six different angles, so as to calculate the degree of protrusion or depression of the lead capacitance, thereby achieving a more accurate detection effect; and each fourth vision camera 601 is also provided with a flash to prevent the light from being too dark.

[0036] More preferably, a fifth detection mechanism 7 is further included, and the fifth detection mechanism 7 is used to detect the bottom surface of the capacitor.

[0037] More preferably, the fifth inspection mechanism 7 includes a plurality of fifth visual cameras 701, which are respectively located below the first inspection station, the second inspection station, and the third inspection station for inspecting the bottom of the capacitor. Specifically, the number of the fifth visual cameras 701 is four, and the four fifth visual cameras 701 are respectively located on the right side of the first inspection station, between the first inspection station and the second inspection station, between the second inspection station and the third inspection station, and on the left side of the third inspection station. The fifth visual camera 701 located between the first inspection station and the second inspection station is tilted from bottom to top, so as to detect the moving lead capacitor, thereby achieving the detection of the lead capacitor both when stationary and when moving, which can further ensure the quality and qualified rate of the lead capacitor, and each fifth visual camera 701 is also provided with a flash to prevent the light from being too dark.

[0038] More preferably, a rotating assembly 8 is installed between the placement seat 2 where the second inspection station and the third inspection station are provided and the workbench 1, and the rotating assembly 8 is used to drive the capacitor to rotate during the inspection process.

[0039] More preferably, the rotating assembly 8 uses a servo motor as a power source to drive the placement base 2 to rotate. Specifically, at the second and third inspection stations, only the front half of the lead capacitor can be inspected. Therefore, after the inspection is completed, the rotating assembly 8 drives the placement base 2 to automatically rotate 180 degrees, and the lead capacitor also rotates accordingly, so that both halves of the lead capacitor can be inspected.

[0040] More preferably, a transmission component 9 is provided on the workbench 1, and the transmission component 9 is used to move the capacitor from the first inspection station to the placement seat 2 away from the first inspection station in sequence for final discharge. Specifically, the transmission component 9 can be a transmission component 9 of a manipulator or other structure, which takes the lead capacitor to be inspected from the storage area to the first inspection station, moves the lead capacitor of the first inspection station to the second inspection station, moves the lead capacitor of the second inspection station to the third inspection station, and then discharges the lead capacitor of the third inspection station from the two placement seats 2 on the left in sequence, thereby completing the sequential transmission of the lead capacitor.

[0041] More specifically, the transmission component 9 includes a grabbing component, a loading component and a unloading transmission component. The grabbing component is driven by a motor module or a cylinder module to perform reciprocating linear motion. The grabbing component grabs the lead capacitors on the five placement seats 2 and a single lead capacitor that needs to be tested at the same time, and all six lead capacitors are moved to the left. The lead capacitor on the far left is qualified and is grabbed to the unloading transmission component. If it is unqualified, a defective accommodating slot is provided on the right side of the unloading transmission component, and the unqualified lead capacitor is grabbed to the defective accommodating slot. From right to left, the lead capacitor on the fourth placement seat 2 is grabbed to the fifth placement seat 2, the lead capacitor on the third detection station is grabbed to the fourth placement seat 2, and the lead capacitor on the second detection station is grabbed to the third The lead capacitor on the first detection station is placed on a placement seat 2, and the lead capacitor on the leftmost side of the loading component is grabbed and placed on the first detection station. The loading components are a vibration plate and a direct vibration, and the unloading transmission component is a conveyor belt. There are two storage slots in the defective receiving slot. A partition plate is rotatably arranged on the defective receiving slot, and the partition plate is driven to rotate by a motor. The motor is electrically connected to the display 10. Through the calculation of the industrial computer, the display 10 divides the defective lead capacitors into two categories based on the detection calculation data of the lead capacitors, determines the defective category of the lead capacitors, and sends a signal to the motor on the defective receiving slot. After receiving the signal, the motor drives the partition plate to rotate and tilt to one side, and the fallen lead capacitors fall into the corresponding storage slot as the partition plate tilts.

[0042] Based on the disclosure and teachings of the above description, those skilled in the art will be able to make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the above specific embodiments. Any obvious improvements, substitutions, or modifications made by those skilled in the art based on the present invention fall within the scope of protection of the present invention. In addition, although certain specific terms are used in this description, these terms are only for convenience of description and do not constitute any limitation to the present invention.

Claims

1. A capacitor detection device, characterized in that: The device comprises a workbench, a first detection mechanism for detecting characters, a second detection mechanism, a third detection mechanism, and a fourth detection mechanism for detecting a capacitor body, and a plurality of placement seats, wherein the plurality of placement seats are sequentially distributed in a straight line on the workbench, wherein three adjacent placement seats are respectively provided with a first detection station, a second detection station, and a third detection station, the first detection mechanism faces the second detection station, the detection ends of the second detection mechanism are respectively vertically directed toward the placement seats provided with the detection stations, the detection ends of the third detection mechanism are respectively directed toward opposite sides of the first detection station, and the fourth detection mechanism faces the third detection station; The first detection mechanism includes three first visual cameras and a curved plate, the inner side of the curved plate is close to the second detection station, wherein the detection ends of two of the first visual cameras pass through the curved plate and illuminate the second detection station, and the two first visual cameras are symmetrically arranged, and the other first visual camera is located obliquely above the second detection station; The capacitor detection equipment also includes a fifth detection mechanism, which includes multiple fifth visual cameras. The fifth visual cameras are used to detect the bottom surface of the capacitor. The fifth visual cameras are arranged between the first detection station and the second detection station.

2. A capacitor detection device according to claim 1, characterized in that: The second detection mechanism includes a slide rail and a second visual camera. There are at least three second visual cameras and at least two slide rails. The second visual cameras whose detection ends are irradiated at the second detection station and the third detection station are both provided with sliders, and the sliders are slidably connected to the corresponding slide rails.

3. The capacitor detection device according to claim 1, characterized in that: The third detection mechanism includes a third visual camera and a baffle. There are at least two third visual cameras and at least two baffles, which are evenly arranged on both sides of the first detection station. The third visual camera cooperates with the baffle on the opposite side.

4. The capacitor detection device according to claim 1, characterized in that: The fourth detection mechanism includes a fourth visual camera and a first fixing bracket, a second fixing bracket and a third fixing bracket for mounting the fourth visual camera. There are at least six fourth visual cameras, all located on the same side, for detecting multiple angles on the same side of the capacitor. The first fixing bracket intersects the illumination directions of the four fourth visual cameras at the third detection station. The second fixing bracket and the third fixing bracket set the heights of the other two fourth visual cameras to be unequal and both are lower than the height of the fourth visual camera on the first fixing bracket.

5. The capacitor detection device according to claim 1, characterized in that: A plurality of fifth visual cameras are respectively located below the first inspection station, the second inspection station and the third inspection station, and are used to inspect the bottom of the capacitor.

6. The capacitor detection device according to claim 1, characterized in that: A rotating assembly is installed between the placement seat where the second inspection station and the third inspection station are provided and the workbench, and the rotating assembly is used to drive the capacitor to rotate during the inspection process.

7. The capacitor detection device according to claim 6, characterized in that: The rotating assembly drives the placement seat to rotate by using a servo motor as a power source.

8. The capacitor detection device according to claim 1, characterized in that: The device further comprises a transmission component, which is arranged on the workbench and is used to sequentially move the capacitors from the first inspection station to the placement seat away from the first inspection station for final discharge.

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