Equipment for automatically testing capacitor core
By designing automated capacitive core detection equipment, using visual positioning and measuring instruments, the problem of inefficient manual detection is solved, and efficient and accurate capacitive core detection and data storage are achieved.
Patent Information
- Application Number
- CN202422413942.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-09-30
AI Technical Summary
In the prior art, the detection of capacitor cores mainly relies on manual operation, and is inefficient, and there are problems such as missed detection, error detection, data recording errors and loss.
An automatic testing equipment including product pre-pressure shaping, visual positioning and material collection, visual measurement and capacitance measurement is designed. The visual positioning mechanism and measuring instrument are used to perform automatic detection of capacitance cores, integrating multiple freely combined modules, using servo control and visual detection technology.
It realizes automatic detection of capacitor cores, improves detection efficiency, reduces manual errors, ensures product quality, and supports multi-function machines, with compact structure and automatic storage of detection data.
Smart Images
Figure CN223234447U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of product testing, in particular to a device for automatic testing of capacitor cores. Background Art
[0002] The core of a film capacitor is made of thin film wound into a cylindrical shape. To ensure the quality of the capacitor, the core's quality must be controlled during the production process. Therefore, the capacitance of the wound core, as well as its length, width, and thickness, must be measured using measuring tools, with the data recorded and stored. Currently, these parameters and indicators are mostly measured manually, but manual labor is inefficient, with inconsistent procedures, and can lead to problems such as missed detections, false detections, data recording errors, and data loss. Therefore, automated testing of capacitor cores is of great significance. Utility Model Content
[0003] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a device for automatic testing of capacitor cores which can automatically perform appearance size detection and capacitance value measurement.
[0004] The utility model is realized through the following technical solutions:
[0005] A device for automatically testing capacitor cores, comprising a frame and a product pre-pressing and shaping portion, a visual positioning and picking portion, a visual measurement portion, a capacitance measurement portion, and a blanking and discharging portion disposed on the frame. The product pre-pressing and shaping portion is used to pre-press a capacitor core to be tested with a circular cross-section into an elliptical shape.
[0006] The visual positioning and picking part includes a product carrier, a moving mechanism, a visual positioning mechanism, and a grabbing mechanism. The product carrier is used to store products transferred from the flattening mechanism. The visual positioning mechanism and the grabbing mechanism are arranged on the moving mechanism and are located above the product carrier. The visual positioning mechanism is used to visually locate the product on the product carrier. The grabbing mechanism is used to grab the product on the product carrier to the visual measurement station of the visual measurement part according to the visual positioning data.
[0007] The visual measurement part includes a first industrial camera and a first transfer mechanism. The first industrial camera is arranged next to the visual measurement station and is used to measure the size of the product on the visual measurement station using visual technology. The first transfer mechanism is used to transfer the product on the visual measurement station to the capacitance measurement station of the capacitance measurement part.
[0008] The capacitance measuring part includes a capacitance measuring instrument and a clamping mechanism. The clamping mechanism is used to clamp the product on the capacitance measuring station, and the capacitance measuring instrument is used to measure the capacitance of the capacitor core after clamping. The unloading and discharging part includes a second transferring mechanism and a receiving mechanism. The second transferring mechanism is used to transfer the product on the capacitance measuring station to the receiving mechanism, and the receiving mechanism is used to store the measured product.
[0009] Furthermore, the clamping mechanism includes an upper and lower clamping mechanism and a horizontal clamping mechanism, the upper and lower clamping mechanism includes upper and lower clamping jigs and upper and lower clamping cylinders, the two upper and lower clamping jigs are respectively arranged above and below the capacitance measuring station, the upper and lower clamping cylinders are connected to the upper and lower clamping jigs, and are used to drive the upper and lower clamping jigs to move closer to each other to clamp the product on the capacitance measuring station; the horizontal clamping mechanism includes a copper brush jig and a horizontal clamping cylinder, the two copper brush jigs are respectively arranged on both sides of the capacitance measuring station, the two horizontal clamping cylinders are respectively connected to the copper brush jigs to drive the copper brush jigs on both sides to clamp the two sides of the capacitor core, and the capacitance measuring instrument is connected to the copper brush jig through a wire.
[0010] Furthermore, the upper and lower clamping fixtures include a mounting seat and a plurality of clamping rods radially mounted on the mounting seat. The end faces of the clamping rods have different dimensions to accommodate capacitor cores of different specifications to be tested. The mounting seat is connected to the movable ends of the upper and lower clamping cylinders.
[0011] Furthermore, the product pre-pressing and shaping part includes a stand, a product flattening jig and a flattening mechanism. The product flattening jig includes an upper pressure plate and a lower pressure plate. The lower pressure plate is fixed on the stand, and the product is placed on the lower pressure plate. The upper pressure plate can be raised and lowered on the stand. The flattening mechanism is connected to the upper pressure plate to drive the upper pressure plate to move closer to the lower pressure plate, thereby applying pressure to the capacitor core to be tested, and pre-pressing the capacitor core to be tested with a circular cross-section into an elliptical shape.
[0012] Furthermore, the flattening mechanism includes a support column, a hand crank, a gear rack assembly and a connecting block. The gear rack assembly is installed on the stand through the support column. The gear rack assembly includes a gear and a rack. The hand crank is connected to the gear to drive the gear to rotate. The connecting block is connected to the rack, and the connecting block is also connected to the upper pressure plate. The hand crank drives the upper pressure plate to move up and down through the gear rack assembly and the connecting block.
[0013] Furthermore, the upper pressing plate can be lifted and lowered on the platform through guide rods and linear bearings passing through the four corners of the upper pressing plate, and a buffer spring is provided between the upper pressing plate and the lower pressing plate.
[0014] Furthermore, the moving mechanism includes a second transverse movement mechanism, a first lifting mechanism and a mounting plate, the first lifting mechanism is arranged on the second transverse movement mechanism, the mounting plate is arranged on the first lifting mechanism, and the visual positioning mechanism and the grasping mechanism are installed on the mounting plate; the visual positioning mechanism includes a second industrial camera and a first light source; the grasping mechanism is an electric gripper or a pneumatic gripper.
[0015] Furthermore, the first removing mechanism includes a third transverse movement mechanism, a second lifting mechanism and a first vacuum suction cup, the second lifting mechanism is arranged on the third transverse movement mechanism, the first vacuum suction cup is arranged on the second lifting mechanism, and the first vacuum suction cup is used to suck the capacitor core.
[0016] Furthermore, the second removing mechanism includes a fourth transverse movement mechanism, a third lifting mechanism and a second vacuum suction cup, the third lifting mechanism is arranged on the fourth transverse movement mechanism, the second vacuum suction cup is arranged on the third lifting mechanism, and the second vacuum suction cup is used to suck the capacitor core.
[0017] Furthermore, the clamping mechanism includes a first transverse movement mechanism, and the clamping mechanism is installed on the first transverse movement mechanism; the first transverse movement mechanism, the third transverse movement mechanism and the fourth transverse movement mechanism are the same transverse movement mechanism, that is, these three transverse movement mechanisms share a transverse movement mechanism, and the transverse movement mechanism includes a mounting frame, which moves laterally under the drive of the driving component, and the clamping mechanism, the second removing mechanism and the first removing mechanism are installed on the mounting frame and are arranged in sequence along the direction toward the pre-pressing and shaping part of the product.
[0018] Furthermore, the material receiving mechanism includes a slide and a material receiving tray, the bottom of the slide is docked with the material receiving tray, and the slide is used to receive the product removed by the second removing mechanism and transport the product to the material receiving tray.
[0019] The utility model sets up a visual positioning material picking part, a visual measurement part and a capacitance measurement part. These processes are automatically connected by a removal mechanism, thereby realizing automatic detection of product indicators such as the size and capacitance value of the capacitor core, which can replace the work of manual detection and transmission, realize unmanned detection operation, reduce labor costs, avoid mistakes and deviations caused by manual detection, improve detection efficiency, and ensure product quality; the product pre-pressing and shaping part can pre-press and shape the product, can simulate the final shape of the product, and improve the credibility of the product detection value; the entire equipment integrates multiple freely combinable modules, which can realize the multi-functionality of the machine, and at the same time has a compact structure, the detection data can be automatically saved, and the servo control technology and visual detection technology are used, and the efficiency is much higher than the traditional process. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1It is a structural schematic diagram of an embodiment of the present utility model.
[0021] Figure 2 This is a schematic diagram of the appearance of an embodiment of the utility model
[0022] Figure 3 This is a structural diagram of the product pre-pressing and shaping part in an embodiment of the present utility model.
[0023] Figure 4 This is a schematic structural diagram of the visual positioning and material taking part in an embodiment of the present utility model.
[0024] Figure 5 This is a partial structural diagram of the capacitance measurement part in an embodiment of the present utility model.
[0025] Figure 6 It is a partial front view of the capacitance measurement part in the embodiment of the present utility model.
[0026] Figure 7 This is another structural diagram of the capacitance measurement part in the embodiment of the utility model.
[0027] Reference numerals: 1-frame; 2-product pre-pressing and shaping part; 3-visual positioning and material removal part; 4-visual measurement part; 5-capacitance measurement part; 6-discharging part; 7-capacitor core; 8-transverse movement assembly; 10-bench; 11-upper pressure plate; 12-lower pressure plate; 13-guide rod; 14-linear bearing; 15-buffer spring; 16-support column; 17-hand crank; 18-gear rack assembly; 19-connecting block; 31-product carrier; 32-second transverse movement machine Structure; 33-first lifting mechanism; 34-mounting plate; 35-grabbing mechanism; 36-second industrial camera; 41-first industrial camera; 42-first removing mechanism; 51-copper brush fixture; 52-horizontal pressing cylinder; 53-mounting seat; 54-pressing rod; 55-upper and lower pressing cylinders; 61-slide; 62-receiving tray; 63-second removing mechanism; 81-mounting frame; 20-operating box; 30-display screen; 40-protective plate; 50-electrical cabinet; 60-industrial computer. DETAILED DESCRIPTION
[0028] A device for automatic testing of capacitor cores, such as Figure 1 As shown, it includes a frame 1 and a product pre-pressing and shaping part 2, a visual positioning and picking part 3, a visual measurement part 4, a capacitance measurement part 5 and a blanking and discharging part 6 arranged on the frame 1. In this embodiment, Figure 2, also includes an operation box 20, a protective plate 40, an electrical cabinet 50, an industrial computer 60, a display screen 30, etc. The product pre-pressing and shaping part 2 is located on the right side of the front section of the equipment, the visual positioning and material taking part 3 is located on the left side of the equipment, the visual measurement part 4 is located in the middle of the equipment, the capacitance measurement part 5 is located on the right side of the visual measurement part 4, the blanking and discharging part 6 is located on the right side of the equipment, the industrial computer 60 and the electrical cabinet 50 are located at the bottom of the rack 1, the protective plate 40 is maintained outside the rack 1, the operation box 20 and the display are located on the outer frame of the equipment for easy viewing and operation.
[0029] The capacitor core 7 to be tested is first pre-pressed and shaped, and then after visual positioning, it is first placed on the visual measurement station for dimensional measurement, and then placed on the capacitance measurement station for capacitance measurement before being collected in a container. After the film capacitor core 7 is just wound, it is generally cylindrical with a circular cross-section. In order to meet the measurement and final forming requirements, it is generally required to be pre-pressed and shaped. The product pre-pressing and shaping part 2 is used to pre-press the capacitor core 7 to be tested with a circular cross-section into an elliptical shape.
[0030] like Figure 4 The visual positioning and picking part 3 is mainly used for positioning and transporting products. It includes a product carrier 31, a moving mechanism, a visual positioning mechanism and a grabbing mechanism 35. The product carrier 31 is used to store products transferred from the flattening mechanism. The product carrier 31 can be high-strength tempered glass and can accommodate multiple products in sequence, such as four capacitor cores 7 placed side by side. The products can be manually transferred from the product pre-pressing and shaping station to the visual positioning and picking station, or they can be automatically grabbed by setting a manipulator. The visual positioning mechanism and the grabbing mechanism 35 are arranged on the moving mechanism, and the visual positioning mechanism and the grabbing mechanism 35 are located above the product carrier 31. As the moving mechanism moves horizontally and upwards, the visual positioning mechanism is used to visually position the product on the product carrier 31. The grabbing mechanism 35 is used to grab the product on the product carrier 31 to the visual measurement station of the visual measurement part 4 according to the visual positioning data.
[0031] In this embodiment, the visual positioning mechanism includes a second industrial camera 36 and a first light source. The lens of the second industrial camera 36 is downwardly directed toward the product carrier 31, and the first light source can be located in front of the second industrial camera 36. The gripping mechanism 35 is an electric or pneumatic gripper, with two jaws of the gripper relatively close together to grasp the capacitor core 7.
[0032] The visual measurement section 4 includes a first industrial camera 41 and a first transfer mechanism 42. The first industrial camera 41 is positioned adjacent to the visual measurement station and is used to measure the dimensions of products placed there using visual technology, primarily measuring their width and height. The first transfer mechanism 42 is used to transfer products from the visual measurement station to the capacitance measurement station of the capacitance measurement section 5. The visual measurement section 4 may also include a second light source, positioned at the front end of the lens of the second industrial camera 36. In this embodiment, the second industrial camera 36 is positioned horizontally.
[0033] The capacitance measuring part 5 includes a capacitance measuring instrument and a pressing mechanism. The pressing mechanism is used to press the product on the capacitance measuring station. The capacitance measuring instrument is used to measure the capacitance of the capacitor core 7 after pressing.
[0034] The material discharge part 6 includes a second transfer mechanism 63 and a material receiving mechanism. The second transfer mechanism 63 is used to transfer the product on the capacitance measurement station to the material receiving mechanism, and the material receiving mechanism is used to store the measured products.
[0035] As one implementation method, in this embodiment, Figures 5 to 7 The clamping mechanism of the capacitance measuring part 5 includes a first transverse movement mechanism, an upper and lower clamping mechanism, and a horizontal clamping mechanism. The upper and lower clamping mechanism includes upper and lower clamping jigs and upper and lower clamping cylinders 55. The upper and lower clamping jigs are respectively arranged above and below the capacitance measuring station. The upper and lower clamping cylinders 55 are connected to the upper and lower clamping jigs and are used to drive the upper and lower clamping jigs to move together to clamp the product of the capacitance measuring station. The lower upper and lower clamping jigs can be set to be fixed, and only the upper upper and lower clamping jigs are driven to move. The upper and lower clamping mechanisms located above the capacitance measuring station are installed on the first transverse movement mechanism. The upper upper and lower clamping mechanisms move linearly under the drive of the first transverse movement mechanism, which can avoid the removal action of the first removal mechanism 42.
[0036] The horizontal pressing mechanism includes a copper brush jig 51 and a horizontal pressing cylinder 52. The two copper brush jigs 51 are respectively arranged on both sides of the capacitance measurement station. The two horizontal pressing cylinders 52 are respectively connected to the copper brush jigs 51 to drive the copper brush jigs 51 on both sides to press the two sides of the capacitor core 7. The copper brush jig 51 is a pure copper jig. The capacitance measuring instrument is connected to the copper brush jig 51 through a wire. First, the capacitor core 7 is pressed up and down by the upper and lower pressing mechanisms, and then the two sides of the capacitor core 7 are pressed by the horizontal pressing mechanism, and then the capacitance detection is performed. Figure 7 In this embodiment, two types of horizontal pressing mechanisms are provided on the frame 1 at the same time, and the sizes of the copper brush jigs 51 thereof are quite different, and they can respectively correspond to the pressing and testing of capacitor cores 7 of different specifications.
[0037] In this embodiment, the upper and lower pressing fixtures include a mounting base 53 and a plurality of pressing rods 54 radially mounted on the mounting base 53. The end faces of the pressing rods 54 have different dimensions to accommodate capacitor cores 7 of varying sizes to be tested. The mounting base 53 is connected to the movable ends of upper and lower pressing cylinders 55. In this embodiment, six pressing rods 54 are provided to accommodate six different sizes of capacitor cores 7, pressing downward according to the specifications of the machine model. Similarly, the bottom structure is the same.
[0038] The function of the product pre-pressing shaping part 2 is to apply a predetermined pressure to the capacitor core 7. It can be a manual or automatic structure. The automatic structure can be a hydraulic cylinder or a pneumatic cylinder, and the stroke or pressure value of the hydraulic cylinder or the cylinder can be preset. As one of the implementation methods, in this embodiment, if Figure 3 The product pre-pressing and shaping part 2 includes a stand 10, a product flattening jig and a flattening mechanism. The product flattening jig includes an upper pressing plate 11 and a lower pressing plate 12. The lower pressing plate 12 is fixed on the stand 10, and the product is placed on the lower pressing plate 12. The upper pressing plate 11 can be lifted and lowered on the stand 10. In this embodiment, the upper pressing plate 11 is installed on the stand 10 through a guide rod 13 and a linear bearing 14. The four guide rods 13 pass through the four corners of the upper pressing plate 11 and are installed through an axial bearing. A buffer spring 15 is provided between the upper pressing plate 11 and the lower pressing plate 12. The flattening mechanism is connected to the upper pressing plate 11 to drive the upper pressing plate 11 to move closer to the lower pressing plate 12, thereby applying pressure to the capacitor core 7 to be tested, and pre-pressing the capacitor core 7 to be tested with a circular cross-section into an elliptical shape. Multiple products can be pre-pressed at one time.
[0039] As one embodiment, in this embodiment, the flattening mechanism includes a support column 16, a hand crank 17, a gear rack assembly 18 and a connecting block 19. The gear rack assembly 18 is mounted on the platform 10 through the support column 16. The gear rack assembly 18 includes a gear and a rack. The hand crank 17 is connected to the gear to drive the gear to rotate. The connecting block 19 is connected to the rack. The connecting block 19 is connected to the upper pressure plate 11. The hand crank 17 drives the upper pressure plate 11 to move up and down through the gear rack assembly 18 and the connecting block 19. The flattening mechanism can also be a screw structure in which a handle drives a screw to move up and down, a motor-driven lifting and retracting rod downward pressing structure, or a downward pressing structure driven by a hydraulic cylinder or a pneumatic cylinder.
[0040] As one implementation method, in this embodiment, Figure 4 The moving mechanism includes a second transverse movement mechanism 32, a first lifting mechanism 33 and a mounting plate 34. The first lifting mechanism 33 is arranged on the second transverse movement mechanism 32, the mounting plate 34 is arranged on the first lifting mechanism 33, and the visual positioning mechanism and the grasping mechanism 35 are installed on the mounting plate 34.
[0041] As one embodiment, the first transfer mechanism 42 includes a third transverse mechanism, a second lifting mechanism, and a first vacuum suction cup (not shown in the figure), the second lifting mechanism is arranged on the third transverse mechanism, the first vacuum suction cup is arranged on the second lifting mechanism, and the first vacuum suction cup is used to pick up the capacitor core 7. The second transfer mechanism 63 includes a fourth transverse mechanism, a third lifting mechanism, and a second vacuum suction cup (not shown in the figure), the third lifting mechanism is arranged on the fourth transverse mechanism, the second vacuum suction cup is arranged on the third lifting mechanism, and the second vacuum suction cup is used to pick up the capacitor core 7.
[0042] In this embodiment, the first transverse movement mechanism (located on the capacitance measurement part 5), the third transverse movement mechanism (located on the visual measurement part 4) and the fourth transverse movement mechanism (located on the blanking and discharging part 6) are the same transverse movement mechanism, that is, these three transverse movement mechanisms share a transverse movement mechanism, which is referred to as a transverse movement assembly 8. The transverse movement assembly 8 includes a mounting frame 81, which moves laterally under the drive of the driving member. The clamping mechanism, the second removing mechanism 63 and the first removing mechanism 42 are mounted on the mounting frame 81 and are arranged in sequence along the direction toward the product pre-pressing and shaping part. Their positions and mutual spacing are respectively relative to the positions and mutual spacing of the visual measurement station, the capacitance measurement station and the blanking and discharging station. In response, under the drive of the transverse moving assembly 8, the clamping mechanism, the second removing mechanism 63 and the first removing mechanism 42 move at the same time and cooperate with each other. For example, the second removing mechanism 63 and the first removing mechanism 42 are driven by the transverse moving assembly 8 to respectively arrive at the capacitance measurement station and the visual measurement station, and absorb the capacitor core after descending. They are driven by the transverse moving assembly 8 to move transversely at the same time and arrive at the unloading and discharging station and the capacitance measurement station respectively. In this way, the product can be moved from the capacitance measurement station to the unloading and discharging station for unloading and discharging, and at the same time, the product on the visual measurement station can be moved to the capacitance measurement station for capacitance measurement. In the gap of material transfer, the clamping mechanism can be driven by the transverse moving assembly 8 to the capacitance measurement station to clamp the product. Both the traverse assembly 8 and the second traverse mechanism 32 can be an electric cylinder structure, i.e., a structure in which a motor drives a lead screw nut. The visual positioning and material collection part 3, the visual measurement part 4, the capacitance measurement part 5, and the material discharge part 6 are arranged in a straight line. The traverse assembly 8 and the second traverse mechanism 32 share a traverse guide rail, and their servo motors are independently driven. The lifting mechanism can be a pneumatic cylinder or electric cylinder driven structure.
[0043] As one implementation method, in this embodiment, Figure 1 The material receiving mechanism includes a slide 61 and a material receiving tray 62. The bottom of the slide 61 is docked with the material receiving tray 62. The slide 61 is used to receive the product removed by the second removing mechanism 63 and transport the product to the material receiving tray 62.
[0044] The working process of this embodiment is as follows:
[0045] 1. Manually place the wound capacitor core 7 on the product pre-pressing and shaping part 2 for pre-pressing. The product with a circular cross-section is pre-pressed into the shape of a formed product, generally an ellipse. Then, the pre-pressed products are placed on the product carrier 31 of the visual positioning and material removal part 3, four at a time.
[0046] 2. The visual positioning and picking part 3 is activated. The moving mechanism drives the second industrial camera 36 to move, taking pictures of the products on the product carrier 31, identifying the position of each product, and transmitting the positioning data to the PLC. The PLC drives the moving mechanism to move, driving the electric gripper to move, and grasp the product according to the positioning data and angle correction;
[0047] 3. The electric gripper places the product on the visual measurement station, and the vision starts to trigger the recognition data, measure the width and height of the product, and save the data;
[0048] 4. The first transfer mechanism 42 moves and picks up the product to the capacitance measurement station. The upper and lower pressing mechanisms move horizontally to press the product up and down. The horizontal pressing cylinder 52 drives the copper brush fixture 51 to press both sides of the product, triggering the capacitance tester to read the current product capacitance value, upload and save it.
[0049] 5. After the capacity is measured, the second removal mechanism 63 sucks the product and places it on the slide 61 , and the product is discharged into the receiving tray 62 .
[0050] The above process is a single process, with four products inspected in a group. The first and second transfer mechanisms 42 and 63, driven by the same transverse mechanism, simultaneously remove products. To enable quick, one-touch switching between models, all product-contacting components utilize servo and visual mechanisms. The product visual inspection program is stored and input by software on the industrial computer 60. The servo position is determined by pre-setting the servo parameters for the specific model. This makes the device compatible with multiple product types. By simply logging in to each model number on the touchscreen, the corresponding position parameters are automatically imported, ensuring ease of use and wide applicability.
[0051] The above detailed description is a specific description of a feasible embodiment of the present invention. The embodiment is not intended to limit the patent scope of the present invention. Any equivalent implementation or modification that does not depart from the present invention should be included in the patent scope of this case.
Claims
1. A device for automatic testing of capacitor cores, characterized in that: It includes a frame and a product pre-pressing and shaping part, a visual positioning and picking part, a visual measurement part, a capacitance measurement part and a blanking and discharging part arranged on the frame. The product pre-pressing and shaping part is used to pre-press the capacitor core to be tested with a circular cross-section into an elliptical shape; the visual positioning and picking part includes a product carrier, a moving mechanism, a visual positioning mechanism and a grabbing mechanism. The product carrier is used to store the product transferred from the flattening mechanism. The visual positioning mechanism and the grabbing mechanism are arranged on the moving mechanism, and the visual positioning mechanism and the grabbing mechanism are located above the product carrier. The visual positioning mechanism is used to visually locate the product on the product carrier, and the grabbing mechanism is used to grab the product on the product carrier to the visual measurement tool of the visual measurement part according to the visual positioning data. The visual measurement part includes a first industrial camera and a first transferring mechanism. The first industrial camera is arranged next to the visual measurement station and is used to measure the size of the product on the visual measurement station by visual technology. The first transferring mechanism is used to transfer the product on the visual measurement station to the capacitance measurement station of the capacitance measurement part. The capacitance measurement part includes a capacitance measuring instrument and a clamping mechanism. The clamping mechanism is used to clamp the product on the capacitance measurement station. The capacitance measuring instrument is used to measure the capacitance of the capacitor core after clamping. The blanking and discharging part includes a second transferring mechanism and a receiving mechanism. The second transferring mechanism is used to transfer the product on the capacitance measurement station to the receiving mechanism. The receiving mechanism is used to store the measured products.
2. The device for automatic testing of capacitor cores according to claim 1, characterized in that: The clamping mechanism includes an upper and lower clamping mechanism and a horizontal clamping mechanism. The upper and lower clamping mechanism includes an upper and lower clamping jig and an upper and lower clamping cylinder. The two upper and lower clamping jigs are respectively arranged above and below the capacitance measuring station. The upper and lower clamping cylinders are connected to the upper and lower clamping jigs to drive the upper and lower clamping jigs to move closer to each other to clamp the product on the capacitance measuring station; the horizontal clamping mechanism includes a copper brush jig and a horizontal clamping cylinder. The two copper brush jigs are respectively arranged on both sides of the capacitance measuring station. The two horizontal clamping cylinders are respectively connected to the copper brush jigs to drive the copper brush jigs on both sides to clamp the two sides of the capacitor core. The capacitance measuring instrument is connected to the copper brush jig through a wire.
3. The device for automatic testing of capacitor cores according to claim 2, characterized in that: The upper and lower pressing fixtures include a mounting seat and a plurality of pressing rods radially mounted on the mounting seat. The end faces of the pressing rods have different dimensions to accommodate capacitor cores of different specifications to be tested. The mounting seat is connected to the movable ends of the upper and lower pressing cylinders.
4. The device for automatic testing of capacitor cores according to claim 1, characterized in that: The product pre-pressing and shaping part includes a stand, a product flattening jig and a flattening mechanism. The product flattening jig includes an upper pressing plate and a lower pressing plate. The lower pressing plate is fixed on the stand, and the product is placed on the lower pressing plate. The upper pressing plate can be raised and lowered on the stand. The flattening mechanism is connected to the upper pressing plate to drive the upper pressing plate to move closer to the lower pressing plate, thereby applying pressure to the capacitor core to be tested, and pre-pressing the capacitor core to be tested with a circular cross-section into an elliptical shape.
5. The device for automatic testing of capacitor cores according to claim 4, characterized in that: The flattening mechanism includes a support column, a hand crank, a gear rack assembly and a connecting block. The gear rack assembly is installed on the platform through the support column. The gear rack assembly includes a gear and a rack. The hand crank is connected to the gear to drive the gear to rotate. The connecting block is connected to the rack, and the connecting block is also connected to the upper pressure plate. The hand crank drives the upper pressure plate to move up and down through the gear rack assembly and the connecting block.
6. The device for automatic testing of capacitor cores according to claim 4, characterized in that: The upper pressing plate is installed on the platform in a lifting manner through guide rods and linear bearings passing through the four corners of the upper pressing plate, and a buffer spring is provided between the upper pressing plate and the lower pressing plate.
7. The device for automatic testing of capacitor cores according to claim 1, characterized in that: The moving mechanism includes a second transverse movement mechanism, a first lifting mechanism and a mounting plate. The first lifting mechanism is arranged on the second transverse movement mechanism, the mounting plate is arranged on the first lifting mechanism, and the visual positioning mechanism and the grasping mechanism are mounted on the mounting plate; the visual positioning mechanism includes a second industrial camera and a first light source; the grasping mechanism is an electric clamp or a pneumatic clamp.
8. The device for automatic testing of capacitor cores according to claim 1, characterized in that: The first transferring mechanism includes a third transverse moving mechanism, a second lifting mechanism and a first vacuum suction cup, the second lifting mechanism is arranged on the third transverse moving mechanism, the first vacuum suction cup is arranged on the second lifting mechanism, and the first vacuum suction cup is used to suck the capacitor core; the second transferring mechanism includes a fourth transverse moving mechanism, a third lifting mechanism and a second vacuum suction cup, the third lifting mechanism is arranged on the fourth transverse moving mechanism, the second vacuum suction cup is arranged on the third lifting mechanism, and the second vacuum suction cup is used to suck the capacitor core.
9. The device for automatic testing of capacitor cores according to claim 8, characterized in that: The clamping mechanism includes a first transverse movement mechanism, and the clamping mechanism is installed on the first transverse movement mechanism; the first transverse movement mechanism, the third transverse movement mechanism and the fourth transverse movement mechanism are the same transverse movement mechanism, and the transverse movement mechanism includes a mounting frame that moves laterally under the drive of a driving member, and the clamping mechanism, the second removing mechanism and the first removing mechanism are installed on the mounting frame and are arranged in sequence along the direction toward the pre-pressing and shaping part of the product.
10. The device for automatic testing of capacitor cores according to claim 1, characterized in that: The material receiving mechanism includes a slide and a material receiving tray. The bottom of the slide is connected to the material receiving tray. The slide is used to receive the product removed by the second removal mechanism and transport the product to the material receiving tray.