Capacitor testing device and testing method

Abstract

The present invention relates to the field of capacitance detection technology, and specifically to a capacitor testing device and testing method, comprising: a bottom disc, an outer circular end of which is rotatably connected to a rotating table, and five first slots are arranged on the circumference of the top of the rotating table; a transmission motor, a transmission plate is fixedly connected to the main shaft of the transmission motor, and the top of the transmission plate is fixedly connected to the rotating table; a top transmission structure is fixedly connected to the bottom disc; a bottom transmission structure is on the bottom disc; a capacitance detection blanking module is fixedly connected to each first slot, and the capacitance detection blanking module is transmission-connected to the top transmission structure; each capacitance detection blanking module is correspondingly provided with a transmission assembly, and the transmission assembly is fixedly connected to the upper end of the inner bottom of the rotating table, each transmission assembly is located directly below the corresponding capacitance detection blanking module, and each transmission assembly is transmission-connected to the bottom transmission structure; the present invention eliminates unqualified capacitors and performs cyclic detection.

Description

Technical Field

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

[0002] Capacitance (or capacitance) is a physical quantity that describes a capacitor's ability to hold an electric charge. Physically speaking, capacitors are static charge storage media, characterized by the potential for permanent charge retention. They are widely used and indispensable components in the electronics and power sectors. They are primarily used in circuits for power filtering, signal filtering, signal coupling, resonance, filtering, compensation, charging and discharging, energy storage, and DC isolation.

[0003] As an indispensable component in circuit boards, capacitors are in great demand. Among mass-produced capacitors, some do not work properly and need to be eliminated to ensure the quality of the capacitors being cut. Therefore, testing of capacitors is extremely important. Publication number CN116203289A discloses a capacitor insulation resistance testing device that can detect capacitors through a detection system coordinated with a robotic arm, a suction nozzle, and a clamping member. However, the device has a large driving force and poor linkage. For mass-produced products such as capacitors, its detection efficiency is low, making it difficult to efficiently eliminate unqualified capacitors. Summary of the Invention

[0004] In view of this, an object of the present invention is to provide a capacitor testing device and a testing method to solve the above-mentioned problems.

[0005] Based on the above objectives, the present invention provides a capacitor testing device, comprising:

[0006] The bottom disc has an outer circular end rotatably connected to a rotating circular platform, and the top of the rotating circular platform is provided with five first slots on an equal circumference;

[0007] A transmission motor is fixedly connected to the top center of the bottom disc, a transmission plate is fixedly connected to the main shaft of the transmission motor, and the top of the transmission plate is fixedly connected to the rotating table;

[0008] A top transmission structure, fixedly connected to the bottom disc;

[0009] A bottom transmission structure, on the bottom disc;

[0010] Each of the first slots is fixedly connected to a capacitance detection blanking module, and the capacitance detection blanking module is transmission-connected to the top transmission structure;

[0011] Each of the capacitance detection and blanking modules is correspondingly provided with a transmission assembly, the transmission assembly being fixedly connected to the upper end of the inner bottom of the rotating circular table, each of the transmission assemblies being located directly below the corresponding capacitance detection and blanking module, and each of the transmission assemblies being in transmission connection with the bottom transmission structure;

[0012] Corresponding to the three adjacent capacitance detection blanking modules, a first flexible contact mechanism, a second flexible contact mechanism and a third flexible contact mechanism are respectively provided. The bottoms of the first flexible contact mechanism, the second flexible contact mechanism and the third flexible contact mechanism are fixedly connected to the bottom disc. The first flexible contact mechanism is externally connected to the discharge mechanism, the second flexible contact mechanism is externally connected to the charging power supply, and the third flexible contact mechanism is electrically connected to the transmission assembly. The first flexible contact mechanism, the second flexible contact mechanism and the third flexible contact mechanism have the same structure.

[0013] As an optional embodiment, the top transmission structure includes a support bracket fixedly connected to the outer circular end of the bottom disc, the top of the support bracket extends to the upper end of the center of the transmission plate, and a cam disc is fixedly connected to the bottom side of the top of the support bracket. The cam disc is provided with five protrusions on its circumference, and each of the protrusions corresponds to one of the first slots.

[0014] As an optional embodiment, the bottom transmission structure includes a cam ring fixedly connected to the top of the bottom disc, the cam ring is cocentric with the main shaft of the transmission motor, and the cam ring is provided with two raised edges, each of the raised edges corresponds to two adjacent first slots.

[0015] As an optional embodiment, the capacitance detection blanking module includes a limit slide fixedly connected to the top of the rotating table, a second slot hole is opened at the bottom of the limit slide corresponding to the first slot hole, a slider is slidably connected in the limit slide, and two first tension springs are fixedly connected between the ends of the slider facing the center of the rotating table, and the other ends of the two first tension springs are fixedly connected to the inner side of the limit slide near the center of the rotating table, the top of the slider is fixedly connected to a tube seat, the top of the tube seat is fixedly connected to a first rotating wheel bracket, a movable wheel is rotatably connected to the first rotating wheel bracket, the movable wheel abuts against the outer circular end of the cam disk, a accommodating tube is fixedly connected to the tube seat, and a blanking mechanism is fixedly connected to the side of the accommodating tube near the center of the rotating table.

[0016] As an optional embodiment, the unloading mechanism includes a propulsion member fixedly connected to one side of the accommodating tube near the center of the rotating table, two sliding cavities are provided at the upper and lower ends of the propulsion member, each of the sliding cavities is slidably connected to a movable rod, and each of the sliding cavities is provided with a second tension spring, one end of each second tension spring is fixedly connected to the corresponding tail end of the sliding cavity, and the other end is fixedly connected to the corresponding tail end of the movable rod, a ring-shaped cavity is connected between the two sliding cavities, and an air inlet channel is provided at the bottom of the ring-shaped cavity that passes through the propulsion member, the accommodating tube, the tube seat and the slider, and the head ends of the two movable rods are fixedly connected to flexible push plates.

[0017] As an optional embodiment, the flexible push plate includes a support ring plate fixedly connected to the head end of the movable rod, and two movable cavities are provided at the upper and lower ends of the support ring plate. A movable block is slidably connected to each movable cavity, and a compression spring is abutted between each movable block and the corresponding movable cavity. The head ends of the two movable blocks are fixedly connected to a push ring plate.

[0018] As an optional embodiment, the transmission assembly includes a cylinder fixedly connected to the upper end of the bottom inner side of the rotating table, a piston movably connected in the cylinder, the end of the piston is fixedly connected to a second rotary wheel bracket, the second rotary wheel bracket is rotatably connected to a contact wheel, the contact wheel abuts against the outer circular end of the cam ring, and an air hole is also provided on the cylinder, the air hole is located at the rear end of the extreme point of the piston contraction stroke, an air supply pipeline is fixedly connected to the air hole, and an electromagnetic two-way valve is fixedly connected to the other end of the air supply pipeline, one end of the air supply pipeline is communicated with the air hole, and the other end is communicated with the air inlet of the electromagnetic two-way valve, the top of the electromagnetic two-way valve is fixedly connected to the bottom of the slider, and the air outlet of the electromagnetic two-way valve is communicated with the air inlet channel.

[0019] As an optional embodiment, the first flexible contact mechanism includes a support plate frame fixedly connected to the edge of the bottom disc, and two movable contacts are arranged on the support plate frame in a mirror-image manner. The movable contact includes a torsion spring shaft rotatably connected to the support plate frame, and a contact plate is fixedly connected to the top of the torsion spring shaft. The two movable contacts are in an inverted "eight" shape when not under force.

[0020] As an optional embodiment, two blanking slide bridges are provided outside the bottom disc, and the two blanking slide bridges correspond to the two raised edges respectively. The bottom disc is also fixedly connected with a first guide plate, a second guide plate and a third guide plate, and the first guide plate, the second guide plate and the third guide plate are arranged in an array at equal angles clockwise relative to the bottom disc, and the third guide plate is located between the third flexible mechanism and the second flexible contact mechanism, and the second guide plate is located between the second flexible contact mechanism and the first flexible contact mechanism. The first guide plate, the second guide plate and the third guide plate have the same structure, the top of the first guide plate is inclined, and the height gradually increases from the clockwise direction, the lowest point of the top of the first guide plate is lower than the height of the two pins of the capacitor in the horizontal state, and the highest point of the top of the first guide plate is horizontally fitted with the two pins of the capacitor in the horizontal state.

[0021] As an optional embodiment, a capacitor insulation testing method is characterized by comprising:

[0022] S1: According to the five raised parts of the cam disc, the loading station, discharging station, charging station, qualified product unloading station, and unqualified product unloading station are adapted and set;

[0023] S2: At the loading station, the loading robot places the capacitor into the holding tube and presses it against the push ring plate;

[0024] S3: After the loading is completed, the main shaft of the transmission motor is driven to rotate, driving the rotating table to start rotating. When it runs to the discharge station, the capacitor rotates under the limit of the first guide plate, so that the two pins of the capacitor become horizontal. Then it reaches the next station. The slider is pushed forward by the protrusion and moves forward in the limit slide. The pins of the capacitor contact the first flexible contact mechanism, and the first flexible contact mechanism is electrically connected to the discharge mechanism to discharge the capacitor.

[0025] S4: After the discharge is completed, the drive motor continues to rotate, driving the rotating table to start rotating, causing the slider to move backward in the limit slide, causing the pins of the capacitor to shrink. Before moving to the charging station, the capacitor is rotated under the limit of the second guide plate, so that the two pins of the capacitor become horizontal. Then, when it reaches the charging station, it is pushed out by the protrusion, causing the slider to move forward in the limit slide, causing the pins of the capacitor to contact the second flexible contact mechanism. The second flexible contact mechanism is electrically connected to the capacitor, as shown in the figure, and the second flexible contact mechanism is electrically connected to the charging power supply to charge the capacitor;

[0026] S5: After charging is completed, the drive motor continues to rotate and drives the rotating table to start rotating, so that the slider moves backward in the limit slide, so that the pins of the capacitor shrink. Before moving to the next station, the capacitor rotates under the limit of the third guide plate, so that the two pins of the capacitor become horizontal. Then it reaches the next station and is pushed out by the raised part, so that the slider moves forward in the limit slide, so that the pins of the capacitor contact the third flexible contact mechanism. The intact capacitor has normal resistance and the circuit is intact. It is charged and electrically connected by the third flexible contact mechanism. The electromagnetic two-way valve corresponding to the capacitor detection and blanking module is connected to the electromagnetic two-way valve at this time, so that the cylinder compressed by the raised edge allows the pressurized gas in the gas pipeline to pass through the electromagnetic two-way valve, and through the air intake channel and the ring cavity, pushes the two movable rods to drive the flexible push plate to push out the qualified capacitor to discharge the material, and the capacitor after being pushed out is disconnected from the circuit of the third flexible contact mechanism. The electromagnetic two-way valve is not powered and switches to a one-way flow that only allows flow from the air intake channel to the gas pipeline, so that the two movable rods drive the flexible push plate to retract for the next discharge;

[0027] S6: After completing the unloading of qualified products, the machine rotates to the unloading station for unqualified products. For unqualified capacitors, when the machine rotates to this station, the electromagnetic two-way valve is energized and the pushing process of S is repeated; unqualified capacitors are unloaded. Beneficial effects of the present invention: The present invention is designed to detect the availability of capacitors and realize the multi-station process of capacitor discharge, charging, unloading of qualified products, and unqualified products through the unidirectional rotation of the transmission motor, so as to eliminate unqualified capacitors and conduct cyclic testing. The operation process of different stations consumes time overlaps, and the work efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 This is a schematic diagram of the three-dimensional structure of an embodiment of the present invention;

[0030] Figure 2 It is a front view of an embodiment of the present invention;

[0031] Figure 3 This is a cross-sectional view of the internal structure of an embodiment of the present invention;

[0032] Figure 4 It is a schematic diagram of a partial structure of an embodiment of the present invention;

[0033] Figure 5 This is a three-dimensional schematic diagram of the internal structure of an embodiment of the present invention;

[0034] Figure 6 This is a partially enlarged schematic diagram of a capacitance detection blanking module according to an embodiment of the present invention;

[0035] Figure 7 This is a partial cross-sectional view of a capacitance detection blanking module according to an embodiment of the present invention;

[0036] Figure 8 A partial cross-sectional view of a transmission assembly according to an embodiment of the present invention;

[0037] Figure 9 This is a schematic diagram of a capacitor charging circuit according to an embodiment of the present invention;

[0038] Figure 10 This is a schematic diagram of a circuit for cutting qualified capacitors according to an embodiment of the present invention;

[0039] Figure 11 Schematic diagram of the circuit for removing defective capacitors according to an embodiment of the present invention.

[0040] The following are marked in the figure:

[0041] 1. Bottom disc; 11. Rotating table; 12. First slot; 13. Transmission motor; 14. Transmission plate; 15. Blanking slide bridge; 16. First guide plate; 17. Second guide plate; 18. Third guide plate; 2. Top transmission structure; 21. Support bracket; 22. Cam plate; 23. Raised portion; 3. Bottom transmission structure; 31. Cam ring; 32. Raised edge; 4. Capacitive detection blanking module; 41. Limiting slide; 42. Second slot; 43. Sliding block; 44. First tension spring; 45. Tube seat; 46. Accommodating tube; 47. First rotating wheel bracket; 48. Movable wheel; 5. Blanking mechanism; 51. Propeller; 52. Sliding block Cavity; 53. movable rod; 54. second tension spring; 55. ring-shaped cavity; 56. air inlet channel; 6. flexible push plate; 61. support ring plate; 62. movable cavity; 63. movable block; 64. compression spring; 65. push ring plate; 7. transmission assembly; 71. cylinder; 72. piston; 73. second runner bracket; 74. contact wheel; 75. air hole; 76. gas pipeline; 77. electromagnetic two-way valve; 8. first flexible contact mechanism; 81. support plate frame; 82. movable contact; 83. torsion spring shaft; 84. contact plate; 85. second flexible contact mechanism; 86. third flexible contact mechanism; 9. first point power supply; 91. second power supply. DETAILED DESCRIPTION

[0042] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to specific embodiments.

[0043] It should be noted that, unless otherwise defined, the technical or scientific terms used in the present invention should have the usual meanings understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0044] like Figures 1-11 As shown, a capacitor testing device includes:

[0045] The bottom disc 1 has an outer circular end rotatably connected to a rotating platform 11, and the top of the rotating platform 11 is provided with five first slots 12 on an equal circumference;

[0046] A transmission motor 13 is fixedly connected to the top center of the bottom disc 1. A transmission plate 14 is fixedly connected to the main shaft of the transmission motor 13. The top of the transmission plate 14 is fixedly connected to the rotating table 11.

[0047] A top transmission structure 2 is fixedly connected to the bottom disc 1;

[0048] A bottom transmission structure 3, on the bottom disc 1;

[0049] Each of the first slots 12 is fixedly connected to a capacitance detection blanking module 4, and the capacitance detection blanking module 4 is transmission-connected to the top transmission structure 2;

[0050] Each of the capacitance detection blanking modules 4 is correspondingly provided with a transmission assembly 7, and the transmission assembly 7 is fixedly connected to the upper end of the inner bottom of the rotating circular table 11. Each of the transmission assemblies 7 is located directly below the corresponding capacitance detection blanking module 4, and each of the transmission assemblies 7 is in transmission connection with the bottom transmission structure 3;

[0051] Corresponding to the three adjacent capacitance detection blanking modules 4, a first flexible contact mechanism 8, a second flexible contact mechanism 85 and a third flexible contact mechanism 86 are respectively provided. The bottoms of the first flexible contact mechanism 8, the second flexible contact mechanism 85 and the third flexible contact mechanism 86 are fixedly connected to the bottom disc 1. The first flexible contact mechanism 8 is externally connected to the discharge mechanism, the second flexible contact mechanism 85 is externally connected to the charging power supply, and the third flexible contact mechanism 86 is electrically connected to the transmission assembly 7. The first flexible contact mechanism 8, the second flexible contact mechanism 85 and the third flexible contact mechanism 86 have the same structure.

[0052] In this embodiment, the charging power supply and the discharging mechanism are both conventional mechanisms. In actual operation, they can be adapted and selected according to the capacitor model to be tested.

[0053] In this embodiment, the capacitor loading operation is performed by a loading robot. The loading robot adopts a conventional mechanism. During actual operation, it can be adapted and selected according to the capacitor model that needs to be detected.

[0054] As an optional implementation, Figure 1 、 3 As shown, the top transmission structure 2 includes a support bracket 21 fixedly connected to the outer circular end of the bottom disc 1, the top of the support bracket 21 extends to the upper end of the center of the transmission plate 14, and a cam disc 22 is fixedly connected to the bottom side of the top of the support bracket 21. The cam disc 22 is provided with five protrusions 23 on the circumference, and each of the protrusions 23 corresponds to one of the first slots 12;

[0055] Thus, each protrusion 23 corresponds to a work station.

[0056] As an optional implementation, Figure 3 、 4 As shown in , 5, the bottom transmission structure 3 includes a cam ring 31 fixedly connected to the top of the bottom disc 1, the cam ring 31 is coaxial with the main shaft of the transmission motor 13, and the cam ring 31 is provided with two raised edges 32, each of the raised edges 32 corresponds to two adjacent first slots 12;

[0057] Thus, the two raised edges 32 correspond to the workstations for unloading qualified products and unqualified products.

[0058] As an optional implementation, Figure 1 、 5As shown in , 6, and 7, the capacitance detection blanking module 4 includes a limiting slide 41 fixedly connected to the top of the rotating disc, and a second slot 42 is opened at the bottom of the limiting slide 41 corresponding to the first slot 12, and a slider 43 is slidably connected in the limiting slide 41, and two first tension springs 44 are fixedly connected between one end of the slider 43 facing the center of the rotating table 11, and the other ends of the two first tension springs 44 are fixedly connected to the inner side of the limiting slide 41 near the center of the rotating table 11. The top of the slider 43 is fixedly connected to a tube seat 45, and the top of the tube seat 45 is fixedly connected to a first rotating wheel bracket 47, and the first rotating wheel bracket 47 is rotatably connected to a movable wheel 48, and the movable wheel 48 abuts against the outer circular end of the cam disc 22, and a receiving tube 46 is fixedly connected to the tube seat 45, and the blanking mechanism 5 is fixedly connected to the side of the receiving tube 46 near the center of the rotating table 11;

[0059] In this way, when the rotating table 11 rotates, it is limited by the pull of the first tension spring 44, and the movable wheel 48 always contacts the cam plate 22. When the movable wheel 48 is on the raised edge 32, it will contact the slider 43 to move forward in the limiting slide 41. When the movable wheel 48 is not on the raised edge 32, it is pulled by the first tension spring 44, and the slider 43 moves backward in the limiting slide 41.

[0060] As an optional implementation, Figure 7 As shown, the unloading mechanism 5 includes a propulsion member 51 fixedly connected to one side of the accommodating tube 46 near the center of the rotating table 11, and two sliding cavities 52 are provided at the upper and lower ends of the interior of the propulsion member 51, and a movable rod 53 is slidably connected in each of the sliding cavities 52, and a second tension spring 54 is provided in each of the sliding cavities 52, and one end of each second tension spring 54 is fixedly connected to the inner tail end of the corresponding sliding cavity 52, and the other end is fixedly connected to the tail of the corresponding movable rod 53, and a ring-shaped cavity 55 is connected between the two sliding cavities 52, and an air inlet channel 56 is opened at the bottom of the ring-shaped cavity 55, which passes through the propulsion member 51, the accommodating tube 46, the tube seat 45 and the slider 43, and the head ends of the two movable rods 53 are fixedly connected to the flexible push plates 6;

[0061] In this way, when the air intake channel 56 is pressurized, the gas flows from the ring-shaped cavity 55 into the space between the sliding cavity 52 and the tail of the movable rod 53, pushing the movable rod 53 to extend. When there is no pressure, the second tension spring 54 pulls back the movable rod 53 to retract.

[0062] As an optional implementation, Figure 7As shown, the flexible push plate 6 includes a support ring plate 61 fixedly connected to the head end of the movable rod 53, and two movable cavities 62 are provided at the upper and lower ends of the support ring plate 61. A movable block 63 is slidably connected in each movable cavity 62. A compression spring 64 is abutted between each movable block 63 and the corresponding movable cavity 62. A push ring plate 65 is fixedly connected to the head end of the two movable blocks 63.

[0063] In this way, with the loading process, the loaded capacitor is resisted by the compressed spring 64, and the pushing ring plate 65 pushes the capacitor to a specified position.

[0064] As an optional implementation, Figure 7 、 8 As shown, the transmission assembly 7 includes a cylinder 71 fixedly connected to the upper end of the bottom inner side of the rotating circular table 11, a piston 72 is movably connected to the cylinder 71, the end of the piston 72 is fixedly connected to a second rotating wheel bracket 73, the second rotating wheel bracket 73 is rotatably connected to a contact wheel 74, and the contact wheel 74 abuts against the outer circular end of the cam ring 31. The cylinder 71 is also provided with an air hole 75, which is located at the rear end of the contraction stroke of the piston 72. An air supply pipe 76 is fixedly connected to the air hole 75, and an electromagnetic two-way valve 77 is fixedly connected to the other end of the air supply pipe 76. One end of the air supply pipe 76 communicates with the air hole 75, and the other end communicates with the air inlet of the electromagnetic two-way valve 77. The top of the electromagnetic two-way valve 77 is fixedly connected to the bottom of the slider 43, and the air outlet of the electromagnetic two-way valve 77 is connected to the air inlet channel 56.

[0065] When the electromagnetic two-way valve 77 is energized, it allows the gas in the cylinder 71 to flow into the intake channel 56. When the power is off, it only allows the gas in the intake channel 56 to flow into the cylinder 71. The air pressure change in the cylinder 71 depends on the position where the contact wheel 74 contacts the cam ring 31.

[0066] As an optional implementation, Figure 6 As shown, the first flexible contact mechanism 8 includes a support plate frame 81 fixedly connected to the edge of the bottom disc 1, and two movable contacts 82 are provided on the support plate frame 81 in a mirror-symmetrical manner. The movable contacts 82 include a torsion spring shaft 83 rotatably connected to the support plate frame 81, and a contact plate 84 is fixedly connected to the top of the torsion spring shaft 83. When the two movable contacts 82 are not under force, they form an inverted "eight" shape;

[0067] In this way, the two contact plates 84 correspond to the two pins of the capacitor, and the torsion spring shaft 83 can rotate and rebound to a specified position after rotation, so as to be electrically connected to the capacitor without affecting the capacitor cutting.

[0068] As an optional implementation, Figure 1 、 2 As shown, two blanking slide bridges 15 are provided outside the bottom disc 1, and the two blanking slide bridges 15 correspond to the two raised edges 32 respectively. The bottom disc 1 is also fixedly connected with a first guide plate 16, a second guide plate 17 and a third guide plate 18, respectively. The first guide plate 16, the second guide plate 17 and the third guide plate 18 are arranged in an array at equal angles clockwise relative to the bottom disc 1, and the third guide plate 18 is located between the third flexible mechanism and the second flexible contact mechanism 85, and the second guide plate 17 is located between the second flexible contact mechanism 85 and the first flexible contact mechanism 8. The first guide plate 16, the second guide plate 17 and the third guide plate 18 have the same structure. The top of the first guide plate 16 is tilted, and the height gradually increases from the clockwise direction. The lowest point of the top of the first guide plate 16 is lower than the height of the two pins of the capacitor in the horizontal state, and the highest point of the top of the first guide plate 16 is horizontally fitted with the two pins of the capacitor in the horizontal state;

[0069] In this way, when the rotating table 11 rotates, the capacitor placed in the accommodating tube 46 will keep both leads of the capacitor in a horizontal state after passing through the first guide plate 16 , the second guide plate 17 and the third guide plate 18 .

[0070] As an optional implementation, Figure 1-11 As shown, a capacitor insulation testing method is characterized by comprising:

[0071] S1: According to the five protrusions 23 of the cam disc 22, a loading station, a discharging station, a charging station, a qualified product unloading station, and a unqualified product unloading station are adapted and set;

[0072] S2: At the loading station, the loading robot places the capacitor into the receiving tube 46 and presses it against the push ring plate 65;

[0073] S3: After the loading is completed, the main shaft of the driving motor 13 is driven to rotate and the rotating table 11 starts to rotate. When it reaches the discharge station, the capacitor rotates under the limit of the first guide plate 16, so that the two pins of the capacitor become horizontal. Then it reaches the next station. Under the push of the protrusion 23, the slider 43 moves forward in the limit slide 41, so that the pins of the capacitor contact the first flexible contact mechanism 8, and the first flexible contact mechanism 8 is electrically connected to the discharge mechanism to discharge the capacitor;

[0074] S4: After the discharge is completed, the driving motor 13 continues to rotate and drives the rotating table 11 to start rotating, so that the slider 43 moves backward in the limit slide 41, so that the pins of the capacitor shrink. Before running to the charging station, the capacitor rotates under the limit of the second guide plate 17, so that the two pins of the capacitor become horizontal, and then reaches the charging station. Figure 1 As shown, the slider 43 is pushed forward by the protrusion 23, and moves forward in the limiting slide 41, so that the pin of the capacitor contacts the second flexible contact mechanism 85, and the second flexible contact mechanism 85 is electrically connected to the capacitor, as shown in FIG. Figure 9 As shown, the second flexible contact mechanism 85 is electrically connected to a charging power source to charge the capacitor;

[0075] Arriving at the charging station, such as Figure 9 As shown, the wire located at the charging station is electrically connected to the capacitor, and the first power supply 9 charges the capacitor.

[0076] S5: After charging is completed, the drive motor 13 continues to rotate to drive the rotating table 11 to start rotating, so that the slider 43 moves backward in the limit slide 41, so that the pins of the capacitor shrink. Before moving to the next station, the capacitor rotates under the limit of the third guide plate 18, so that the two pins of the capacitor become horizontal, and then arrive at the next station. Figure 1 As shown, the slider 43 is pushed forward by the raised portion 23, so that the slider 43 moves forward in the limit slide 41, so that the pin of the capacitor contacts the third flexible contact mechanism 86. The intact capacitor has normal resistance and a good circuit. After charging, it is charged and electrically connected to the electromagnetic two-way valve 77 corresponding to the capacitor detection and blanking module 4 by the third flexible contact mechanism 86. At this time, the electromagnetic two-way valve 77 is opened, so that the cylinder 71 compressed by the raised edge 32 allows the pressurized gas in the gas pipeline 76 to pass through the electromagnetic two-way valve 77, and through the air inlet channel 56 and the ring cavity 55, push the two movable rods 53 to drive the flexible push plate 6 to push out the qualified capacitor, and the capacitor after being pushed out is disconnected from the circuit of the third flexible contact mechanism 86. The electromagnetic two-way valve 77 is not energized and switches to a unidirectional flow that only allows flow from the air inlet channel 56 to the gas pipeline 76, so that the two movable rods 53 drive the flexible push plate 6 to retract for the next push.

[0077] Arriving at the qualified product unloading station, such as Figure 10 As shown, the movable contact 82 located at the qualified product unloading station is electrically connected to the capacitor, and the capacitor forms a closed circuit with the electromagnetic two-way valve 77 through a wire. If the capacitor is a qualified product, the capacitor contacts the electromagnetic two-way valve 77, and the electromagnetic two-way valve 77 opens. After the capacitor is pushed out, the station circuit is not closed and the electromagnetic two-way valve is closed.

[0078] S6: After completing the unloading of qualified products, turn to the unloading station for unqualified products. For unqualified capacitors, when turning to this station, if Figure 1 As shown, the electromagnetic two-way valve 77 is energized and the pushing process of S5 is repeated; unqualified capacitors are discharged;

[0079] like Figure 11As shown, when the unqualified products arrive at the unloading station, the second power supply 91 is connected to the electromagnetic two-way valve 77 through a wire, so that the electromagnetic two-way valve 77 opens.

[0080] Those skilled in the art will understand that the discussion of any of the above embodiments is merely illustrative and is not intended to limit the scope of the present invention to these examples. Within the spirit and principles of the present invention, the technical features of the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and many other variations exist for the various aspects of the present invention described above, which are not provided in detail for the sake of clarity. Any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A capacitor testing device, characterized in that: include: The bottom disc (1) has an outer circular end rotatably connected to a rotating platform (11), and the top of the rotating platform (11) is provided with five first slots (12) on an equal circumference; A transmission motor (13) is fixedly connected to the top center of the bottom disc (1); a transmission plate (14) is fixedly connected to the main shaft of the transmission motor (13); and a top of the transmission plate (14) is fixedly connected to the rotating table (11); A top transmission structure (2) is fixedly connected to the bottom disc (1), and the top transmission structure (2) includes a support bracket (21) fixedly connected to the outer circular end of the bottom disc (1), the top of the support bracket (21) extends to the upper end of the center of the transmission plate (14), and a cam disc (22) is fixedly connected to the bottom side of the top of the support bracket (21), and the cam disc (22) is provided with five protrusions (23) on the circumference, and each of the protrusions (23) corresponds to one of the first slots (12); A bottom transmission structure (3) is arranged on the bottom disc (1), and the bottom transmission structure (3) includes a cam ring (31) fixedly connected to the top of the bottom disc (1), the cam ring (31) is coaxial with the main shaft of the transmission motor (13), and the cam ring (31) is provided with two raised edges (32), and each of the raised edges (32) corresponds to two adjacent first slots (12); Each of the first slots (12) is fixedly connected to a capacitance detection blanking module (4), the capacitance detection blanking module (4) is transmission-connected to the top transmission structure (2), the capacitance detection blanking module (4) comprises a limit slide (41) fixedly connected to the top of the rotating table (11), a second slot (42) is provided at the bottom of the limit slide (41) corresponding to the first slot (12), a slider (43) is slidably connected in the limit slide (41), and two first tension springs (44) are fixedly connected between one end of the slider (43) facing the center of the rotating table (11) in a mirror-symmetrical manner. ), the other ends of the two first tension springs (44) are fixedly connected to one end of the inner side of the limiting slide (41) close to the center of the rotating table (11), the top of the slider (43) is fixedly connected to a tube seat (45), the top of the tube seat (45) is fixedly connected to a first rotating wheel bracket (47), the first rotating wheel bracket (47) is rotatably connected to a movable wheel (48), the movable wheel (48) abuts against the outer circular end of the cam disc (22), the tube seat (45) is fixedly connected to a receiving tube (46), and the side of the receiving tube (46) close to the center of the rotating table (11) is fixedly connected to a blanking mechanism (5); Each of the capacitance detection blanking modules (4) is correspondingly provided with a transmission assembly (7), the transmission assembly (7) being fixedly connected to the upper end of the inner bottom of the rotating circular table (11), each of the transmission assemblies (7) being located directly below the corresponding capacitance detection blanking module (4), and each of the transmission assemblies (7) being transmission-connected to the bottom transmission structure (3); The transmission assembly (7) includes a cylinder (71) fixedly connected to the upper end of the bottom inner side of the rotating circular table (11), a piston (72) movably connected in the cylinder (71), a second rotating wheel bracket (73) fixedly connected to the end of the piston (72), a contact wheel (74) rotatably connected to the second rotating wheel bracket (73), the contact wheel (74) abutting against the outer circular end of the cam ring (31), and an air hole (75) is also provided on the cylinder (71); The three adjacent capacitance detection blanking modules (4) are respectively provided with a first flexible contact mechanism (8), a second flexible contact mechanism (85) and a third flexible contact mechanism (86); the bottoms of the first flexible contact mechanism (8), the second flexible contact mechanism (85) and the third flexible contact mechanism (86) are all fixedly connected to the bottom disc (1); the first flexible contact mechanism (8) is externally connected to a discharge mechanism; the second flexible contact mechanism (85) is externally connected to a charging power source; the third flexible contact mechanism (86) is electrically connected to the transmission assembly (7); the first flexible contact mechanism (8), the second flexible contact mechanism (85) and the third flexible contact mechanism (86) have the same structure.

2. A capacitor testing device according to claim 1, characterized in that: The unloading mechanism (5) includes a propeller (51) fixedly connected to one side of the accommodating tube (46) near the center of the rotating table (11), two sliding cavities (52) are provided at the upper and lower ends of the interior of the propeller (51), and a movable rod (53) is slidably connected in each sliding cavity (52), and a second tension spring (54) is provided in each sliding cavity (52), and one end of each second tension spring (54) is fixedly connected to the inner tail end of the corresponding sliding cavity (52), and the other end is fixedly connected to the tail end of the corresponding movable rod (53), and a ring-shaped cavity (55) is connected between the two sliding cavities (52), and the bottom of the ring-shaped cavity (55) is provided with an air intake channel (56) that passes through the propeller (51), the accommodating tube (46), the tube seat (45) and the slider (43), and the head ends of the two movable rods (53) are fixedly connected with a flexible push plate (6).

3. A capacitor testing device according to claim 2, characterized in that: The flexible push plate (6) includes a support ring plate (61) fixedly connected to the head end of the movable rod (53), two movable cavities (62) are provided at the upper and lower ends of the support ring plate (61), each of the movable cavities (62) is slidably connected to a movable block (63), each movable block (63) is in contact with the corresponding movable cavity (62), and a compression spring (64) is provided between each movable block (63) and the corresponding movable cavity (62), and the head ends of the two movable blocks (63) are fixedly connected to a push ring plate (65).

4. A capacitor testing device according to claim 3, characterized in that: The air hole (75) is located at the rear end of the extreme point of the contraction stroke of the piston (72), and an air pipeline (76) is fixedly connected to the air hole (75). The other end of the air pipeline (76) is fixedly connected to an electromagnetic two-way valve (77). One end of the air pipeline (76) is communicated with the air hole (75), and the other end is communicated with the air inlet of the electromagnetic two-way valve (77). The top of the electromagnetic two-way valve (77) is fixedly connected to the bottom of the slider (43), and the air outlet of the electromagnetic two-way valve (77) is communicated with the air inlet channel (56).

5. The capacitor testing device according to claim 1, characterized in that: The first flexible contact mechanism (8) comprises a support plate frame (81) fixedly connected to the edge of the bottom disc (1); two movable contacts (82) are arranged on the support plate frame (81) in a mirror-symmetrical manner; the movable contacts (82) comprise a torsion spring shaft (83) rotatably connected to the support plate frame (81); a contact plate (84) is fixedly connected to the top of the torsion spring shaft (83); and the two movable contacts (82) are in an inverted "eight" shape when not under force.

6. A capacitor testing device according to claim 4, characterized in that: Two blanking slide bridges (15) are provided outside the bottom disc (1), and the two blanking slide bridges (15) correspond to the two raised edges (32) respectively. The bottom disc (1) is also fixedly connected with a first guide plate (16), a second guide plate (17) and a third guide plate (18), respectively. The first guide plate (16), the second guide plate (17) and the third guide plate (18) are arranged in an array at equal angles clockwise relative to the bottom disc (1), and the third guide plate (18) is located between the third flexible mechanism and the second flexible contact mechanism. (85), the second guide plate (17) is located between the second flexible contact mechanism (85) and the first flexible contact mechanism (8), the first guide plate (16), the second guide plate (17) and the third guide plate (18) have the same structure, the top of the first guide plate (16) is tilted, and the height gradually increases from the clockwise direction, the lowest point of the top of the first guide plate (16) is lower than the height of the two pins of the capacitor in the horizontal state, and the highest point of the top of the first guide plate (16) is horizontally fitted with the two pins of the capacitor in the horizontal state.

7. A capacitor insulation testing method, applied to the capacitor testing device according to claim 6, characterized in that: The test method includes: S1: According to the five protrusions (23) of the cam disc (22), a loading station, a discharging station, a charging station, a qualified product unloading station, and a unqualified product unloading station are adapted and set; S2: At the loading station, the loading robot places the capacitor into the receiving tube (46) and abuts against the push ring plate (65); S3: After the loading is completed, the main shaft of the driving motor (13) is rotated to drive the rotating table (11) to start rotating. When the rotating table (11) reaches the discharge station, the capacitor rotates under the limit of the first guide plate (16), so that the two pins of the capacitor become horizontal. Then, the capacitor reaches the next station and is pushed out by the protrusion (23), so that the slider (43) moves forward in the limit slide (41), so that the pins of the capacitor contact the first flexible contact mechanism (8), and the first flexible contact mechanism (8) is electrically connected to the discharge mechanism to discharge the capacitor. S4: After the discharge is completed, the driving transmission motor (13) continues to rotate to drive the rotating table (11) to start rotating, so that the slider (43) moves backward in the limit slide (41), so that the pins of the capacitor shrink. Before running to the charging station, the capacitor is rotated under the limit of the second guide plate (17), so that the two pins of the capacitor become horizontal. Then, when it reaches the charging station, it is pushed out by the protrusion (23), so that the slider (43) moves forward in the limit slide (41), so that the pins of the capacitor contact the second flexible contact mechanism (85), the second flexible contact mechanism (85) is electrically connected to the capacitor, and the second flexible contact mechanism (85) is electrically connected to the charging power supply to charge the capacitor; S5: After charging is completed, the driving transmission motor (13) continues to rotate and drives the rotating table (11) to start rotating, so that the slider (43) moves backward in the limit slide (41), so that the pins of the capacitor shrink. Before moving to the next station, the capacitor is rotated under the limit of the third guide plate (18), so that the two pins of the capacitor become horizontal. Then, it reaches the next station and is pushed out by the protrusion (23), so that the slider (43) moves forward in the limit slide (41), so that the pins of the capacitor contact the third flexible contact mechanism (86). The intact capacitor has normal resistance and a good circuit. It is charged and electrically connected to the capacitor detection blanking die by the third flexible contact mechanism (86). The electromagnetic two-way valve (77) corresponding to the group (4) is opened at this time, so that the cylinder (71) compressed by the raised edge (32) allows the pressurized gas in the gas pipeline (76) to pass through the electromagnetic two-way valve (77), and through the air inlet channel (56) and the ring cavity (55), pushes the two movable rods (53) to drive the flexible push plate (6) to push out the qualified capacitor, and the capacitor after pushing out is disconnected from the circuit of the third flexible contact mechanism (86), and the electromagnetic two-way valve (77) is not connected to the power, and switches to a unidirectional flow that only allows the flow from the air inlet channel (56) to the gas pipeline (76), so that the two movable rods (53) drive the flexible push plate (6) to retract for the next push; S6: After completing the unloading of qualified products, the machine moves to the unloading station for unqualified products. When the machine moves to this station, the electromagnetic two-way valve (77) is energized and the pushing process of S5 is repeated; the unqualified capacitors are unloaded.

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