Full-automatic test equipment for aging test of capacitor

Abstract

The invention relates to the technical field of capacitor aging test, and discloses full-automatic test equipment for capacitor aging test, which comprises a test board, a conveyor, a first straightening mechanism, a second straightening mechanism and a material moving mechanism, a capacitance test circuit board is embedded in one side of the top of the test board, a capacitance waveform monitoring display is arranged beside the test board, and the capacitance waveform monitoring display is electrically connected with the capacitance test circuit board through a wire; the conveyor is arranged on the other side of the top of the test board and is used for conveying the capacitor; a first straightening mechanism and a second straightening mechanism are sequentially arranged on the upstream of the conveyor in the conveying direction of the conveyor. The first straightening mechanism is used for adjusting positive and negative pins of each capacitor on the conveyor to the same horizontal plane; the second straightening mechanism is used for adjusting the positive electrode pin direction or the negative electrode pin direction of each capacitor on the conveyor to the same side of the capacitor; the test efficiency is improved, and the test automation degree is improved.

Description

Technical Field

[0001] The invention relates to the technical field of capacitor aging test, in particular to a fully automatic test device for capacitor aging test. Background Art

[0002] Since the two pins of the capacitor have positive and negative terminals, and incorrect connection of the positive and negative terminals of the capacitor on the aging tester will cause test failure, when performing batch capacitor aging tests, it is necessary to make the positive terminals of each capacitor on the same side and the negative terminals of each capacitor on the other side.

[0003] In the prior art, a manual identification and installation method is usually used to accurately install capacitors on a capacitor test circuit board. This installation method involves the identification of the positive and negative pins of the capacitor, and the corresponding insertion of the positive and negative pins of the capacitor on the capacitor test circuit board. Since the aging test of the capacitor requires batch testing to obtain valid test data, the manual identification and installation method brings about the problems of low efficiency and low automation in the batch capacitor aging test. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a fully automatic capacitor aging test device, which can effectively solve the problems raised in the background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a fully automatic test device for capacitor aging test, comprising a test bench, a conveyor, a first straightening mechanism, a second straightening mechanism and a material moving mechanism;

[0006] A capacitor test circuit board is embedded on one side of the top of the test bench, and a capacitor waveform monitoring display is arranged on the side of the test bench, and the capacitor waveform monitoring display is electrically connected to the capacitor test circuit board through a wire; the conveyor is arranged on the other side of the top of the test bench; the first swaying mechanism and the second swaying mechanism are arranged in sequence upstream of the conveyor and along the conveying direction of the conveyor, and the material moving mechanism is arranged downstream of the conveyor; the material moving mechanism is used to move the capacitor to the capacitor test circuit board;

[0007] The conveyor is used to convey capacitors and move the capacitors to the first straightening mechanism, the second straightening mechanism and the material moving mechanism in sequence; the first straightening mechanism is used to adjust the positive and negative pins of the capacitor to the same horizontal plane, and the second straightening mechanism is used to adjust the positive pin of the capacitor to the upstream or downstream close to the conveyor.

[0008] Preferably, the conveyor includes a frame and a conveyor belt arranged on the inner side of the frame, and a plurality of carriers are fixedly installed on the surface of the conveyor belt at uniform intervals along the rotating conveying direction, and a groove matching the capacitor housing is arranged on the carrier; the first alignment mechanism includes a baffle plate 1 and an adjustment frame respectively fixed on both sides of the frame, a baffle plate 2 is arranged between the baffle plate 1 and the adjustment frame, the baffle plate 2 is connected and fixed to the baffle plate 1 through a U-shaped connecting plate, a gap is left between the baffle plate 2 and the frame, a guide groove and an adjustment groove are provided on the adjustment frame, the adjustment groove is an open groove, and the narrow mouth of the adjustment groove is connected to the guide groove.

[0009] Preferably, the second straightening mechanism includes a movable plate one and a movable plate two respectively arranged on both sides of the frame, a plurality of turntables are embedded on the movable plate two, the turntables and the movable plate two are rotatably matched, a conduit is eccentrically arranged on the end of the turntable facing the movable plate one, the conduit is matched with the positive electrode pin of the capacitor, a plurality of pneumatic selection devices are installed on the movable plate two, the plurality of pneumatic selection devices correspond one-to-one to the plurality of turntables, when the positive electrode pin of the capacitor is inserted into place in the conduit, the corresponding pneumatic selection device drives the turntable to rotate 180 degrees; a push rod two is fixed on the end of each turntable facing the movable plate one, a plurality of push rods one are rotatably installed on the movable plate one, the plurality of push rods one correspond one-to-one to the plurality of push rods two, and the push rod one and the push rod two are respectively used to press the axial ends of the capacitor housing.

[0010] Preferably, a circle of air guide grooves is provided on the outer circumferential surface of the turntable, an air cavity and an airway are provided inside the turntable, the air cavity is connected to the inner cavity of the catheter, and the airway is connected to the air cavity and the air guide groove; the pneumatic selection device includes an air supply pipe, a sealing ring, a cylinder, a plug rod and a linkage mechanism; the air supply pipe is used to supply high-pressure gas into the air guide groove, the sealing ring is embedded in the inner circumferential surface of the catheter, the inner diameter of the sealing ring is smaller than the diameter of the positive electrode pin of the capacitor, the cylinder is fixed at the other end of the turntable, the inner cavity of the cylinder is connected to the airway, one end of the plug rod is arranged in the inner cavity of the cylinder, and the other end is located outside the cylinder and connected to the linkage mechanism, and the linkage mechanism is connected to the cylinder in a transmission manner.

[0011] Preferably, the linkage mechanism includes a linkage rod, a linkage shaft and a linkage cylinder. One end of the linkage rod is rotatably sleeved on the outer surface of the plug rod, and the other end of the linkage rod is connected to and fixed on the linkage shaft. The linkage cylinder is sleeved on the outer surface of the linkage shaft, and a spiral matching mechanism is formed between the linkage shaft and the linkage cylinder. The linkage cylinder and the cylinder body are connected together by gear transmission.

[0012] Preferably, the linkage cylinder is rotatably mounted on the movable plate 2 through a support, an elastic member is arranged between the linkage cylinder and the support, and a brake member is arranged between the turntable and the movable plate 2; after the turntable is driven by the pneumatic selection device to rotate 180 degrees, the elastic member drives the turntable to rotate and reset; after the turntable is reset, the brake member is used to prevent the turntable from continuing to rotate in the reset rotation direction.

[0013] Preferably, the material moving mechanism comprises a three-axis mechanical arm and a capacitor ejecting device, a capacitor fixture is installed at the output end of the three-axis mechanical arm, and the capacitor ejecting device is used to push the capacitor on the conveyor into the capacitor fixture.

[0014] Compared with the prior art, the present invention provides a fully automatic capacitor aging test device, which has the following beneficial effects:

[0015] 1. When conducting capacitor aging tests, it can realize automatic and continuous transportation of capacitors, which is suitable for batch aging detection of capacitors and improves the capacitor installation efficiency during batch aging tests of capacitors.

[0016] 2. When placing multiple capacitors on the conveyor continuously, there is no need to adjust the positive or negative pins of each capacitor to the same side in advance, which improves the convenience of capacitor placement.

[0017] 3. When the conveyor continuously conveys multiple capacitors, the positive and negative machine pins of the multiple capacitors can be adjusted to the same horizontal plane by passing the positive and negative machine pins of the multiple capacitors through the adjustment groove and the guide groove in turn; after the multiple capacitors are moved to the second alignment mechanism, the multiple catheters are moved close to the corresponding multiple capacitors so that the catheters are sleeved on the positive pins opposite thereto (when the positive pins are not facing the catheters, the catheters cannot be moved to be sleeved on the positive pins by moving the catheters), and the capacitors whose positive pins are located in the catheters are rotated 180 degrees through the pneumatic selection device, and the capacitors whose positive pins are not in the catheters do not rotate, thereby achieving the adjustment of the positive pins or negative pins of the multiple capacitors to the same side, so that the multiple capacitors can be quickly and accurately inserted into the capacitor test circuit board at the same time, thereby achieving the improvement of the test efficiency and the improvement of the degree of test automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the cooperation between the present invention and a capacitor;

[0019] Figure 2 It is a structural schematic diagram of the conveyor and the first straightening mechanism;

[0020] Figure 3 is a structural schematic diagram of the second straightening mechanism;

[0021] Figure 4 It is a schematic diagram of the cooperation between the moving plate 2 and the turntable;

[0022] Figure 5 It is a structural diagram of the linkage mechanism;

[0023] Figure 6 Schematic diagram of the internal structure of the turntable.

[0024] Among them: 1. test bench; 2. conveyor; 3. first straightening mechanism; 4. second straightening mechanism; 5. air delivery pipe; 6. material transfer mechanism; 7. capacitor test circuit board; 8. capacitor waveform monitoring display; 21. rack; 22. conveyor belt; 23. carrier; 231. groove; 31. baffle plate 1; 32. adjustment frame; 33. baffle plate 2; 321. guide groove; 322. adjustment groove; 34. U-shaped connecting plate; 41. moving plate 1; 411. ejector rod 1; 4 12. Ejector rod 2; 41. Moving plate 1; 42. Moving plate 2; 43. Turntable; 431. Air guide groove; 432. Air cavity; 433. Airway; 44. Conduit; 441. Sealing ring; 45. Cylinder; 451. Plug rod; 46. Linkage rod; 47. Linkage shaft; 48. Linkage cylinder; 481. Support; 482. Elastic member; 483. Braking member; 49. Driving device; 61. Three-axis robotic arm; 62. Capacitor ejection device; 63. Capacitor fixture. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] See also Figure 1 , a fully automatic test equipment for capacitor aging test, comprising a test bench 1, a conveyor 2, a first straightening mechanism 3, a second straightening mechanism 4 and a material moving mechanism 6;

[0027] A capacitor test circuit board 7 is embedded on one side of the top of the test bench 1, and a capacitor waveform monitoring display 8 is arranged on the side of the test bench 1, and the capacitor waveform monitoring display 8 is electrically connected to the capacitor test circuit board 7 through a wire; the conveyor 2 is arranged on the other side of the top of the test bench 1; the first straightening mechanism 3 and the second straightening mechanism 4 are arranged in sequence upstream of the conveyor 2 and along the conveying direction of the conveyor 2, and the material moving mechanism 6 is arranged downstream of the conveyor 2; the material moving mechanism 6 is used to move the capacitor to the capacitor test circuit board 7;

[0028] The conveyor 2 is used to convey capacitors and move the capacitors to the first straightening mechanism 3, the second straightening mechanism 4 and the material moving mechanism 6 in sequence; the first straightening mechanism 3 is used to adjust the positive and negative pins of the capacitor to the same horizontal plane, and the second straightening mechanism 4 is used to adjust the positive pin of the capacitor to the upstream or downstream close to the conveyor 2.

[0029] As a further explanation of the above technical solution, Figure 2As shown, the conveyor 2 includes a frame 21 and a conveyor belt 22 arranged inside the frame 21. The frame 21 is fixed on the upper surface of the test bench 1. The frame 21 has a power unit for driving the conveyor belt 22 to rotate and move on the frame 21. The power unit can be a motor, a hydraulic motor, etc. A plurality of carriers 23 are evenly and fixedly installed on the surface of the conveyor belt 22 along the rotating conveying direction. The carrier 23 is provided with a groove 231 matching the capacitor housing, and the length of the groove 231 is slightly smaller than the length of the capacitor housing; when the conveyor belt 22 rotates and moves, the carrier 23 moves in a circular motion. When the groove 231 faces upward, the carrier 23 carries the capacitor and moves the capacitor. When the groove 231 faces downward, the carrier 23 is in an empty state.

[0030] The first alignment mechanism 3 includes a baffle plate 1 31 and an adjustment frame 32 respectively fixed on both sides of the frame 21, a baffle plate 2 33 is arranged between the baffle plate 1 31 and the adjustment frame 32, the baffle plate 2 33 is connected and fixed to the baffle plate 1 31 through a U-shaped connecting plate 34, the distance between the opposite surfaces of the baffle plate 1 31 and the baffle plate 2 33 is slightly larger than the axial length of the capacitor housing, a gap is left between the baffle plate 2 33 and the frame 21, and the baffle plate 2 33 is located above the capacitor pin to facilitate the movement of the capacitor in the first alignment mechanism 3; the adjustment frame 32 is provided with a guide groove 321 and an adjustment groove 322, and the adjustment The slot 322 is an open slot, the narrow mouth of the adjustment slot 322 is connected to the guide slot 321, and the capacitor pin enters the adjustment slot 322 from the wide mouth of the adjustment slot 322; as the capacitor moves in the first alignment mechanism 3, the capacitor pin moves from the wide mouth to the narrow mouth of the adjustment slot 322, and in this process, the pin contacts the upper and lower slot walls of the adjustment slot 322, driving the electric motor to rotate in the groove 231 until the positive and negative pins of the electric motor are moved into the guide slot 321; in the guide slot 321, the positive and negative pins of the capacitor are maintained at the same horizontal plane.

[0031] As a further explanation of the above technical solution, Figure 3As shown, the second straightening mechanism 4 includes a moving plate 1 41 and a moving plate 2 42 respectively arranged on both sides of the frame 21, and a driving device 49 is installed between the moving plate 1 41 and the moving plate 2 42. The driving device 49 is arranged below the conveyor 2 and installed on the upper surface of the test bench 1. The driving device 49 is used to drive the moving plate 1 41 and the moving plate 2 42 to move closer to or away from each other; in this embodiment, the driving device 49 includes a dual-output shaft motor, two screw rods and a guide rod with opposite rotation directions, wherein the dual-output shaft motor housing and the guide rod are fixed to the upper part of the test bench 1, and the two output ends of the dual-output shaft motor are respectively fixedly connected to a screw rod, and the two screw rods respectively penetrate the moving plate 1 41 and the moving plate 2 42, and a threaded fit is formed between the screw rod and the moving plate 1 41, and between the screw rod and the moving plate 2 42. The moving plate 1 41 and the moving plate 2 42 are both slidably sleeved on the outer surface of the guide rod, and the two rotations are driven by the dual-output shaft motor to make the moving plate 1 41 and the moving plate 2 42 slide on the guide rod and move closer to or away from each other.

[0032] Furthermore, if Figure 4 As shown, a plurality of turntables 43 are embedded on the movable plate 42, and the turntables 43 are rotatably matched with the movable plate 42. A conduit 44 is eccentrically arranged on one end of the turntable 43 facing the movable plate 1 41, and the conduit 44 is matched with the positive pin of the capacitor. Specifically, since the finished capacitor can distinguish the positive and negative poles through two pins of different lengths, that is, the length of the positive pin is greater than that of the negative pin, when the positive pin is facing the conduit 44, the conduit 44 can be moved to be sleeved on the positive pin and matched with the positive pin, and when the negative pin is facing the conduit 44, the conduit 44 moves the same distance and cannot be sleeved on the negative pin, or is sleeved on the negative pin but does not form a match with the negative pin. Figure 6 As shown, the inner cavity of the conduit 44 is composed of a cylindrical inner cavity and a truncated cone inner cavity. The cylindrical inner cavity is located on the side close to the turntable 43, and the cylindrical inner cavity is connected to the narrow opening of the truncated cone inner cavity. The wide opening of the truncated cone inner cavity faces the conveyor 2, and the capacitor pin enters the conduit 44 through the wide opening of the truncated cone inner cavity. It should be noted that although Figure 6 The length of the cylindrical inner cavity shown is shorter than that of the truncated cone inner cavity, but in fact, the length relationship between the cylindrical inner cavity and the truncated cone inner cavity may not be the same. Figure 6 As shown, the cylindrical inner cavity and the truncated cone inner cavity can have the same length, and the length of the cylindrical inner cavity can also be greater than the length of the truncated cone inner cavity; the selection of the length relationship between the cylindrical inner cavity and the truncated cone inner cavity can be made according to the material of the capacitor pin, that is, when the material of the capacitor pin is relatively hard and not easy to bend and deform, the length of the cylindrical inner cavity can be less than or equal to the length of the truncated cone inner cavity; when the material of the capacitor pin is relatively soft, the length of the cylindrical inner cavity should be greater than the length of the truncated cone inner cavity, so that the length of the capacitor pin located in the cylindrical inner cavity is longer, so that the capacitor pin is not easy or will not bend and deform when the second straightening mechanism 4 is working.

[0033] A plurality of pneumatic selection devices are installed on the movable plate 42, and the plurality of pneumatic selection devices correspond one-to-one to the plurality of turntables 43. When the positive pin of the capacitor is inserted into place in the conduit 44, the corresponding pneumatic selection device drives the turntable 43 to rotate 180 degrees; a push rod 2 412 is fixed on one end of each turntable 43 facing the movable plate 41, and a plurality of push rods 1 411 are rotatably installed on the movable plate 41, and the plurality of push rods 1 411 correspond one-to-one to the plurality of push rods 2 412 respectively. The push rod 1 411 and the push rod 2 412 are respectively used to press against the axial ends of the capacitor housing. When the turntable 43 rotates, the push rod 2 412 is driven to rotate, so that the capacitor and the push rod 1 411 rotate together.

[0034] Furthermore, if Figure 5 and Figure 6 As shown, a circle of air guide grooves 431 are provided on the outer circumference of the turntable 43, and an air cavity 432 and an air channel 433 are provided inside the turntable 43. The air cavity 432 is connected to the inner cavity of the conduit 44, and the air channel 433 is connected to the air cavity 432 and the air guide groove 431. The air in the air guide groove 431 enters the air cavity 432 through the air channel 433, and then can be discharged through the conduit 44; when the positive pin of the capacitor is located in the conduit 44, the air will not be discharged from the conduit 44, and when the positive pin of the capacitor is moved out of the conduit 44 or is located outside the conduit 44, the air is discharged through the conduit 44. The pneumatic selection device includes an air supply pipe 5, a sealing ring 441, a cylinder 45, a plug rod 451 and a linkage mechanism; the air supply pipe 5 is fixed on the movable plate 2 42, the air inlet of the air supply pipe 5 is connected to the air source (not shown in the figure), and the air outlet of the air supply pipe 5 is connected to the air guide groove 431, and the high-pressure air from the air source enters the air guide groove 431 through the air supply pipe 5; the sealing ring 441 is embedded in the inner circumferential surface of the guide tube 44, specifically, the sealing ring 441 is embedded in the cavity wall surface of the cylindrical inner cavity, and is located between the turntable 43 and the sealing ring 441. The length of the cylindrical inner cavity between the sealing ring 441 and the truncated cone-shaped inner cavity is smaller than the length of the cylindrical inner cavity between the sealing ring 441 and the truncated cone-shaped inner cavity, and the positive pin of the capacitor is located in the cylindrical inner cavity between the sealing ring 441 and the truncated cone-shaped inner cavity; the inner diameter of the sealing ring 441 is smaller than the diameter of the positive pin of the capacitor. When the positive pin of the capacitor is inserted into the conduit 44, the positive pin of the capacitor presses against the sealing ring 441 and forms a partition with the sealing ring 441, dividing the cylindrical inner cavity into two, so that the air in the air cavity 432 cannot be discharged through the conduit 44. The cylinder 45 is fixed to the other end of the turntable 43. The cylinder 45 and the turntable 43 have the same central axis. The inner cavity of the cylinder 45 is connected to the airway 433. One end of the plug rod 451 is arranged in the inner cavity of the cylinder 45, and the other end is located outside the cylinder 45 and connected to the linkage mechanism. The linkage mechanism is connected to the cylinder 45 in a transmission manner. When the cylindrical inner cavity is separated by a partition, the air in the air guide groove 431 enters the cylinder 45 through the airway 433, pushing the plug rod 451 out of the cylinder 45, causing the linkage mechanism to operate, driving the turntable 43 to rotate, thereby realizing the rotation of the capacitor.

[0035] like Figure 5 and Figure 6 As shown, the linkage mechanism includes a linkage rod 46, a linkage shaft 47 and a linkage cylinder 48. One end of the linkage rod 46 is rotatably sleeved on the outer surface of the plug rod 451, and the other end of the linkage rod 46 is connected to and fixed to the linkage shaft 47. The linkage cylinder 48 is sleeved on the outer surface of the linkage shaft 47, and a spiral matching mechanism is formed between the linkage shaft 47 and the linkage cylinder 48; the plug rod 451 slides out of the cylinder body 45 to drive the linkage rod 46 to move to the side away from the movable plate 42, and the linkage shaft 47 is pulled out of the linkage cylinder 48, and the linkage cylinder 48 is driven to rotate by means of the spiral matching formed between the linkage shaft 47 and the linkage cylinder 48; the linkage cylinder 48 and the cylinder body 45 are connected together by a gear transmission, and the linkage cylinder 48 rotates, and the cylinder body 45 is driven to rotate through the gear transmission mechanism to realize the rotation of the turntable 43.

[0036] The linkage cylinder 48 is rotatably mounted on the second moving plate 42 through a support 481. Specifically, the support 481 is fixed to one end of the second moving plate 42 away from the first moving plate 41, and the linkage cylinder 48 penetrates and rotatably connects the support 481. An elastic member 482 is arranged between the linkage cylinder 48 and the support 481. When the plug rod 451 slides out of the cylinder body 45, the elastic member 482 undergoes elastic deformation and accumulates elastic potential energy. A brake member 483 is arranged between the turntable 43 and the second moving plate 42. After the turntable 43 is driven by the pneumatic selection device to rotate 180 degrees, the elastic member 482 drives the turntable 43 to rotate and reset. After the turntable 43 is reset, the brake member 483 is used to prevent the turntable 43 from continuing to rotate along the reset rotation direction.

[0037] In this embodiment, the elastic member 482 can be any one of a coil spring, a torsion spring and a spring, and the coil spring, torsion spring or spring is sleeved on the linkage cylinder 48, one end of the coil spring, one end of the torsion spring or one end of the spring is connected to the fixed support 481, and the other end of the coil spring, the other end of the torsion spring or the other end of the spring is connected to the fixed linkage cylinder 48. In the process of the positive electrode pin of the capacitor moving out of the guide tube 44, the elastic member 482 drives the linkage cylinder 48 to rotate, so that the cylinder body 45 and the rotating disk 43 rotate and reset, and the linkage shaft 47 is retracted into the linkage cylinder 48, so that the plug rod 451 is retracted into the cylinder body 45.

[0038] In this embodiment, the brake member 483 includes a brake column and two brake plates. The brake column is fixed to one end of the moving plate 2 42 facing the moving plate 1 41, and the two brake plates are fixed to one end of the rotating disk 43 facing the moving plate 1 41. Figure 4In the initial state, one brake plate abuts against the brake column, and the other brake plate is away from the brake column. After the rotating disk 43 is driven by the pneumatic selection device to rotate 180 degrees, the brake plate that originally abuts against the brake column is separated from the brake column, and the brake plate that originally separated from the brake column abuts against the brake column, so that the rotating disk 43 will not be driven by the pneumatic selection device to continue to rotate; after the rotating disk 43 is rotated and reset by the elastic member 482, the brake member 483 returns to the initial state.

[0039] The material moving mechanism 6 includes a three-axis mechanical arm 61 and a capacitor ejection device 62. A capacitor fixture 63 is installed at the output end of the three-axis mechanical arm 61. The capacitor ejection device 62 is used to push the capacitor on the conveyor 2 into the capacitor fixture 63. The conveying direction of the conveyor 2 is defined as the X direction. The three-axis mechanical arm 61 provides movement along the Y axis, movement along the Z axis and rotation around the X axis, so that the capacitor fixture 63 has three degrees of freedom; the capacitor ejection device 62 includes multiple cylinders and multiple ejection racks, and the multiple ejection racks are fixed to the output ends of the multiple cylinders in a one-to-one correspondence. The cylinders are fixed on the test bench 1; when the capacitor inlet of the capacitor fixture 63 is horizontally facing the groove 231, the cylinder drives the ejection rack to move, and pushes the capacitor shell into the capacitor fixture 63. After that, the capacitor fixture 63 clamps and fixes the capacitor, and then, the capacitor is moved to the top of the capacitor test circuit board 7 by the three-axis mechanical arm 61, and the capacitor is inserted on the capacitor test circuit board 7.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fully automatic test equipment for capacitor aging test, characterized in that: It comprises a test bench (1), a conveyor (2), a first straightening mechanism (3), a second straightening mechanism (4) and a material transfer mechanism (6); A capacitance test circuit board (7) is embedded on one side of the top of the test bench (1); a capacitance waveform monitoring display (8) is arranged on the side of the test bench (1); the capacitance waveform monitoring display (8) is electrically connected to the capacitance test circuit board (7) through a wire; the conveyor (2) is arranged on the other side of the top of the test bench (1); the first squaring mechanism (3) and the second squaring mechanism (4) are arranged in sequence upstream of the conveyor (2) and along the conveying direction of the conveyor (2); the material moving mechanism (6) is arranged downstream of the conveyor (2); the material moving mechanism (6) is used to move the capacitor onto the capacitance test circuit board (7); The conveyor (2) is used to convey capacitors and to move the capacitors to a first alignment mechanism (3), a second alignment mechanism (4) and a material transfer mechanism (6) in sequence; the first alignment mechanism (3) is used to adjust the positive and negative pins of the capacitor to the same horizontal plane, and the second alignment mechanism (4) is used to adjust the positive pin of the capacitor to be close to the upstream or downstream of the conveyor (2).

2. The fully automatic capacitor aging test equipment according to claim 1 is characterized by: The conveyor (2) comprises a frame (21) and a conveyor belt (22) arranged inside the frame (21); a plurality of carriers (23) are evenly and fixedly installed on the surface of the conveyor belt (22) along the rotary conveying direction; the carriers (23) are provided with grooves (231) matching the capacitor housing; the first alignment mechanism (3) comprises a baffle plate 1 (31) and an adjustment frame (32) respectively fixed on both sides of the frame (21); a baffle plate 2 (33) is arranged between the baffle plate 1 (31) and the adjustment frame (32); the baffle plate 2 (33) is connected and fixed to the baffle plate 1 (31) through a U-shaped connecting plate (34); a gap is left between the baffle plate 2 (33) and the frame (21); a guide groove (321) and an adjustment groove (322) are provided on the adjustment frame (32); the adjustment groove (322) is an open groove; the narrow mouth of the adjustment groove (322) is connected to the guide groove (321).

3. The fully automatic capacitor aging test equipment according to claim 2 is characterized by: The second alignment mechanism (4) comprises a first movable plate (41) and a second movable plate (42) respectively arranged on both sides of the frame (21); a plurality of rotating disks (43) are embedded on the second movable plate (42); the rotating disks (43) are rotatably matched with the second movable plate (42); a guide tube (44) is eccentrically arranged on one end of the rotating disk (43) facing the first movable plate (41); the guide tube (44) is matched with the positive electrode pin of the capacitor; a plurality of pneumatic selection devices are installed on the second movable plate (42); the plurality of pneumatic selection devices are connected to the plurality of rotating disks ( 43) correspond one to one, when the positive pin of the capacitor is inserted into the conduit (44), the corresponding pneumatic selection device drives the turntable (43) to rotate 180 degrees; a push rod 2 (412) is fixed on one end of each turntable (43) facing the movable plate 1 (41), and a plurality of push rods 1 (411) are rotatably mounted on the movable plate 1 (41), and the plurality of push rods 1 (411) correspond one to one with the plurality of push rods 2 (412), and the push rods 1 (411) and the push rods 2 (412) are respectively used to press the two axial ends of the capacitor housing.

4. The fully automatic capacitor aging test equipment according to claim 3 is characterized by: The outer circumferential surface of the rotating disk (43) is provided with a circle of air guide grooves (431); the rotating disk (43) is provided with an air cavity (432) and an air passage (433); the air cavity (432) is connected to the inner cavity of the guide tube (44); the air passage (433) is connected to the air cavity (432) and the air guide grooves (431); the pneumatic selection device comprises an air supply pipe (5), a sealing ring (441), a cylinder (45), a plug rod (451) and a linkage mechanism; the air supply pipe (5) is used to supply air to the air guide grooves (431), the sealing ring (441) is embedded in the inner circumference of the conduit (44), the inner diameter of the sealing ring (441) is smaller than the diameter of the positive electrode pin of the capacitor, the cylinder (45) is fixed to the other end of the turntable (43), the inner cavity of the cylinder (45) is connected to the airway (433), one end of the plug rod (451) is arranged in the inner cavity of the cylinder (45), and the other end is located outside the cylinder (45) and connected to the linkage mechanism, and the linkage mechanism is connected to the cylinder (45) in a transmission manner.

5. The fully automatic capacitor aging test equipment according to claim 4 is characterized in that: The linkage mechanism comprises a linkage rod (46), a linkage shaft (47) and a linkage cylinder (48); one end of the linkage rod (46) is rotatably sleeved on the outer surface of the plug rod (451); the other end of the linkage rod (46) is connected to and fixed to the linkage shaft (47); the linkage cylinder (48) is sleeved on the outer surface of the linkage shaft (47); a spiral matching mechanism is formed between the linkage shaft (47) and the linkage cylinder (48); and the linkage cylinder (48) and the cylinder body (45) are connected together through gear transmission.

6. The fully automatic capacitor aging test equipment according to claim 5, characterized in that: The linkage cylinder (48) is rotatably mounted on the second movable plate (42) via a support (481); an elastic member (482) is provided between the linkage cylinder (48) and the support (481); a brake member (483) is provided between the turntable (43) and the second movable plate (42); after the turntable (43) is driven by the pneumatic selection device to rotate 180 degrees, the elastic member (482) drives the turntable (43) to rotate and reset; after the turntable (43) is reset, the brake member (483) is used to prevent the turntable (43) from continuing to rotate along the reset rotation direction.

7. The fully automatic capacitor aging test equipment according to claim 1 is characterized by: The material transfer mechanism (6) comprises a three-axis mechanical arm (61) and a capacitor ejection device (62); a capacitor fixture (63) is installed at the output end of the three-axis mechanical arm (61); and the capacitor ejection device (62) is used to push the capacitor on the conveyor (2) into the capacitor fixture (63).

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