A relay tolerance detection device and method

Abstract

The present invention relates to the technical field of relay detection, and particularly relates to a relay tolerance detection device and method, including a support disk, a transfer disk, an arc-shaped housing and an environment manufacturing mechanism; the present invention can solve the following problems existing in the prior art during the detection of relays: it is impossible to detect the tolerance of the relay to the load in a humid and high-temperature environment, and it is impossible to realize the vibration detection during the load process of the relay, affecting the detection effect and reliability; the present invention can simulate the load operation of the relay to be tested in a humid environment and a high-temperature environment by transporting the relay to be tested to the humidification station and the temperature-raising station respectively, so as to detect the tolerance of the relay to be tested in different environments during the load, and the invention can also simulate the tolerance of the relay to be tested to the vibration effect during the load by vibrating up and down reciprocally, thereby improving the detection effect on the relay to be tested.

Description

Technical Field

[0001] The present invention relates to the technical field of relay detection, and particularly relates to a relay tolerance detection device and method. Background Art

[0002] A relay is an electrical appliance that causes a predetermined step change in a controlled quantity in an electrical output circuit when the change in the input quantity reaches the specified requirement. It is usually used in an automated control circuit. To ensure that the relay can work stably under various conditions, it is necessary to perform corresponding tolerance detection on it, mainly including vibration tests during transportation and use, durability under rated load, and environmental adaptability tests of the relay under different temperature and humidity conditions.

[0003] In the prior art, a large number of relay detections and corresponding devices have also been disclosed. Among them, for example, the Chinese patent with the publication number CN113866629A discloses a comprehensive test bench for relay performance and durability, including a bench frame, a test host arranged on the bench frame, a relay fixing tooling, a relay coil power supply, multi-type loads, a load power supply, and a display electrically connected to the test host. Among them, the multi-type loads include electronic loads, resistive loads, bulb loads, and inductive loads, and different loads in the multi-type loads are installed in different grid layers of the bench frame.

[0004] When in use, the relay to be tested is fixed on the relay fixing tooling. The test host stores test parameters and control timings and is used to issue instructions to control the progress of the test. The relay coil power supply is used to provide energy. Subsequently, different load conditions are simulated for the relay to be tested through the multi-type loads, and the test results are displayed through the display.

[0005] However, in the process of detecting the relay using the above prior art, there are still the following deficiencies:

[0006] 1. Since the relay may be in different working environments such as humidity and high temperature during actual use, it is necessary to detect the tolerance of the relay to load operation in different environments. However, the above prior art can only provide different load conditions through multi-type loads and cannot detect the tolerance of the relay to load in different environments, thus affecting the detection effect and reliability.

[0007] 2. Also, since the above prior art cannot achieve continuous batch detection of relays, it is necessary to frequently install and disassemble the relays, which is cumbersome to operate and affects the detection efficiency.

[0008] 3. In addition, the relay may be vibrated during transportation and use, and the above-mentioned existing technologies cannot detect the vibration during the load process of the relay, which further affects the detection effect, resulting in the situation that the relay after the detection is prone to being unusable after being vibrated during subsequent transportation and use, thereby affecting the use effect.

[0009] Therefore, under the viewpoints stated above, there is still room for improvement in the relay detection means of the existing technologies. Summary of the Invention

[0010] In order to solve the above problems, the present invention provides a relay tolerance detection device, which includes a support disk with a bracket installed at its bottom; a transfer disk rotatably installed at the upper end of the support disk, and a plurality of annularly distributed storage boxes for placing the relay to be tested are installed at the upper end of the transfer disk; an arc-shaped cover installed at the upper end of the support disk and covering the transfer disk, and a fan-shaped opening is provided on any side of the arc-shaped cover for the loading station for installing and removing the relay; an environment manufacturing mechanism installed between the bracket and the support disk for simulating different environments in which the relay is in a load working state in different independent spaces. The environment manufacturing mechanism includes a sprayer and an air pump respectively connected to different independent spaces, and the independent spaces connected to the sprayer and the air pump are respectively a humidifying station and a temperature-rising station for simulating the relay in different environments.

[0011] As a preferred technical solution of the present invention, a hollow shaft is rotatably installed in the middle of the support disk, the hollow shaft passes through the middle of the transfer disk, and a toothed ring is sleeved at the lower end of the hollow shaft. An intermittent motor is provided at the lower end of the support disk through a motor base, and a gear meshing with the toothed ring is sleeved on the output shaft of the intermittent motor.

[0012] As a preferred technical solution of the present invention, a reciprocating plate for dividing the interior of the arc-shaped cover into multiple independent spaces is slidably penetrated on the arc-shaped cover, and a first supporting ring and a second supporting ring on the same axis are installed at the upper end of the transfer disk, and the reciprocating plate is slidably clamped at the upper ends of the first supporting ring and the second supporting ring.

[0013] As a preferred technical solution of the present invention, a plurality of protrusions corresponding to the positions of the storage boxes are installed at the upper ends of the first supporting ring and the second supporting ring. The side of the protrusion close to the rotation direction of the transfer disk gradually slopes downward, and the height of the protrusion is greater than the height of the storage box.

[0014] As a preferred technical solution of the present invention, a pressing plate is hinged to the upper end of the storage box on the side close to the movement direction of the transfer disk through a torsion spring. A plurality of top blocks are installed at the upper end of the transfer disk on the side away from the storage box of the pressing plate, and an execution pressing plate is installed on the side of the pressing plate close to the storage box through a plurality of support spring rods.

[0015] As a preferred technical solution of the present invention, the pressing plate is of an arc-shaped structure, the side of the pressing plate away from the storage box is an arc-shaped convex surface, and a stress elastic sheet is arranged on the side of the pressing plate away from the storage box.

[0016] As a preferred technical solution of the present invention, a notch for the smooth passage of the pressing plate is opened at the lower end of the reciprocating plate, and a baffle for sealing the notch is slidably installed on the inner top wall of the notch.

[0017] As a preferred technical solution of the present invention, the environment manufacturing mechanism further includes a supporting plate installed on the bracket. The supporting plate is located below the supporting disk. A power supply and an electronic load are installed on the upper end of the supporting plate. A power supply socket is arranged inside the storage box, and the power supply socket has a plurality of sockets for adapting to different types of relays.

[0018] As a preferred technical solution of the present invention, a signal receiver and a controller are further installed on the upper end of the supporting plate. The sprayer, the air pump, the power supply, the electronic load and the signal receiver are respectively electrically connected to the controller. A display screen electrically connected to the controller is installed on the supporting plate through a stabilizing frame;

[0019] An input wire and an output wire are installed on the power supply socket. An electric slip ring is installed inside the hollow shaft. One ends of the input wire and the output wire away from the power supply socket are respectively connected to the power supply and the electronic load through the electric slip ring.

[0020] In addition, the present invention also provides a method for detecting the tolerance of a relay, including the following steps:

[0021] S1: Relay installation: First, install the relay to be tested in the storage box;

[0022] S2: Relay transportation: Drive the storage box and the relay to be tested to move circumferentially and intermittently through the transfer disk, and sequentially move to the humidification station and the temperature increase station;

[0023] S3: Environment adjustment: The environment manufacturing mechanism can simulate the humid environment and high temperature environment of the relay to be tested during actual use;

[0024] S4: Detection completion: The transfer disk drives the tested relay back to the loading station, so as to facilitate removing it and installing the relay to be tested in the storage box.

[0025] In summary, the present application includes the following beneficial technical effects:

[0026] 1. The present invention drives the storage box and the relay under test to move circumferentially and intermittently to the humidifying station and the heating station through a transfer disk. The humidifying station can increase the humidity to simulate the load operation of the relay under test in a humid environment, and the heating station can increase the temperature to simulate the load operation of the relay under test in a high-temperature environment, thereby detecting the tolerance of the relay under test in different environments when under load, and continuous batch detection of the relay under test can be achieved, thus improving the detection efficiency.

[0027] 2. When the present invention drives the storage box to move into the arc-shaped housing through the transfer disk, the arc-shaped housing can squeeze the pressing plate from a vertical state to a horizontal state, so that the pressing plate drives the actuating pressing plate to abut against the upper end of the relay under test through the supporting spring rod. In this way, the relay under test is automatically pressed and limited through the linkage effect among the transfer disk, the arc-shaped housing, the pressing plate and the actuating pressing plate. Moreover, the force-receiving elastic piece at the upper end of the pressing plate is in sliding contact with the inner top wall of the arc-shaped housing and always presses the pressing plate downward, so as to ensure that the pressing plate always remains in a horizontal state inside the arc-shaped housing, and further ensure that the actuating pressing plate always presses and limits the relay under test.

[0028] 3. When the present invention drives the storage box to move circumferentially between the feeding station and the humidifying station, the cooperation of the positioning strip and the convex platform can control the up-and-down reciprocating vibration of the storage box, thereby simulating the tolerance of the relay under test to the vibration effect when under load, and further improving the detection effect on the relay under test. Description of the Drawings

[0029] Figure 1 is the structural schematic diagram of the present invention.

[0030] Figure 2 is the internal structural schematic diagram between the support disk and the transfer disk of the present invention.

[0031] Figure 3 is the internal structural schematic diagram of the arc-shaped housing of the present invention.

[0032] Figure 4 is the structural schematic diagram among the arc-shaped housing, the reciprocating plate and the storage box of the present invention.

[0033] Figure 5 is the present invention Figure 4 partial enlarged view of A.

[0034] Figure 6 is the first structural schematic diagram of the environmental manufacturing mechanism of the present invention.

[0035] Figure 7 is the second structural schematic diagram of the environmental manufacturing mechanism of the present invention.

[0036] Figure 8It is a schematic structural diagram among the support plate, transfer plate, convex platform, positioning strip and arc-shaped pad of the present invention.

[0037] Figure 9 It is a schematic structural diagram among the transfer plate, storage box and support wing plate of the present invention.

[0038] In the figure, 1 is the support plate; 11 is the hollow shaft; 12 is the toothed ring; 13 is the intermittent motor; 14 is the gear; 2 is the bracket; 3 is the transfer plate; 31 is the arc-shaped housing; 32 is the loading station; 33 is the reinforcing plate; 34 is the reciprocating plate; 341 is the baffle; 35 is the first supporting ring; 36 is the second supporting ring; 37 is the protrusion; 4 is the storage box; 41 is the pressing plate; 42 is the top block; 43 is the supporting spring rod; 44 is the execution pressing plate; 45 is the stress elastic sheet; 5 is the environmental manufacturing mechanism; 51 is the sprayer; 511 is the water tank; 52 is the air pump; 521 is the air electric heater; 53 is the humidifying station; 54 is the heating station; 55 is the supporting plate; 551 is the power supply; 552 is the electronic load; 553 is the power supply socket; 554 is the signal receiver; 555 is the controller; 556 is the display screen; 557 is the input wire; 558 is the output wire; 559 is the electric slip ring; 61 is the support wing plate; 62 is the reset spring rod; 63 is the convex platform; 64 is the positioning strip; 65 is the arc-shaped pad; 7 is the relay to be tested. Specific embodiments

[0039] The following will be combined with the attached Figures 1 - 9 to describe the embodiments of the present invention in detail.

[0040] The embodiment of the present application discloses a relay tolerance detection device. It should be noted that the relay tolerance detection device of the present application is mainly applied in the process of detecting the tolerance of the relay. In terms of technical effects, it can simulate the environment in the actual working process of the relay to be tested 7, so as to detect the tolerance of the relay to be tested 7 in different environments when loaded; especially during the detection process, it can control the circumferential movement of the relay to be tested 7, and continuous batch detection can be realized, thereby improving the detection efficiency. During this period, the relay to be tested 7 can be pressed and limited to ensure its stability during the detection process. Further, the relay tolerance detection device of the present application can also control the up-and-down reciprocating vibration of the relay to be tested 7 during the circumferential movement, so as to simulate the tolerance of the relay to be tested 7 to the vibration effect when loaded, and further improve the detection effect of the relay to be tested 7.

[0041] Embodiment 1: Refer to Figure 1 and Figure 2As shown in the figure, a relay tolerance detection device includes a support disk 1, with a bracket 2 installed at its bottom; a transfer disk 3, rotatably installed at the upper end of the support disk 1, and a number of annularly distributed storage boxes 4 for placing the relay 7 to be tested are installed at the upper end of the transfer disk 3; an arc-shaped cover 31, installed at the upper end of the support disk 1 and covering the transfer disk 3 from above, and a reinforcing plate 33 is installed between the arc-shaped cover 31 and the support disk 1 to increase the stability of the arc-shaped cover 31. There is a fan-shaped opening on either side of the arc-shaped cover 31, which is a loading station 32 for installing and removing the relay; an environment manufacturing mechanism 5, installed between the bracket 2 and the support disk 1, for simulating different environments when the relay is under load in different independent spaces. The environment manufacturing mechanism 5 includes a sprayer 51 and an air pump 52 that are respectively connected to different independent spaces. The independent spaces connected to the sprayer 51 and the air pump 52 are a humidifying station 53 and a heating station 54 for simulating the relay in different environments respectively.

[0042] Furthermore, in this embodiment, in order to facilitate the continuous detection of the relay, the transfer disk 3 can be automatically rotated in this embodiment. Specifically, a hollow shaft 11 is rotatably installed in the middle of the support disk 1, the hollow shaft 11 is fixedly passed through the middle of the transfer disk 3, and a gear ring 12 is fixedly sleeved at the lower end of the hollow shaft 11. An intermittent motor 13 is arranged at the lower end of the support disk 1 through a motor base, and a gear 14 meshing with the gear ring 12 is fixedly sleeved on the output shaft of the intermittent motor 13.

[0043] During specific operation, first start the intermittent motor 13. The intermittent motor 13 drives the gear 14 to rotate. The gear 14 cooperates with the gear ring 12 to drive the hollow shaft 11 and the transfer disk 3 as a whole to perform intermittent rotation, and the rotation angle of the transfer disk 3 each time is equal to the angle between two adjacent storage boxes 4; when the transfer disk 3 drives the storage box 4 to move to the loading station 32, install the relay 7 to be tested in the storage box 4, and then the intermittent motor 13 drives the transfer disk 3 to continue rotating, and load the relay 7 to be tested. During this period, the environment manufacturing mechanism 5 can simulate the environment of the relay 7 to be tested during actual use. The humidity can be increased through the humidifying station 53 to simulate the relay 7 to be tested working under load in a humid environment, and the temperature can be increased through the heating station 54 to simulate the relay 7 to be tested working under load in a high-temperature environment, so as to detect the tolerance of the relay 7 to be tested in different environments under load; after the detection is completed, the transfer disk 3 drives the detected relay back to the loading station 32 to facilitate removing it and installing the relay 7 to be tested in the storage box 4. Repeating the above steps can realize the continuous batch detection of the relay 7 to be tested, thereby improving the detection efficiency.

[0044] Refer to Figure 1 and Figure 3As shown in the figure, in order to prevent air from entering the inside of the humidifying station 53 and the temperature-raising station 54, which may cause a decrease in the humidity or temperature in the simulated environment of the relay under test 7, in this embodiment, a reciprocating plate 34 is slidably inserted through the arc-shaped housing 31. The reciprocating plate 34 is used to divide the interior of the arc-shaped housing 31 into multiple independent spaces. A first supporting ring 35 and a second supporting ring 36 with the same axis are installed at the upper end of the transfer disk 3. The reciprocating plate 34 is slidably clamped at the upper ends of the first supporting ring 35 and the second supporting ring 36. The storage box 4 is located between the first supporting ring 35 and the second supporting ring 36.

[0045] Furthermore, in this embodiment, a plurality of protrusions 37 corresponding to the position of the storage box 4 are installed at the upper ends of the first supporting ring 35 and the second supporting ring 36. One side of the protrusion 37 close to the rotation direction of the transfer disk 3 gradually slopes downward, and the height of the protrusion 37 is greater than the height of the storage box 4.

[0046] During specific operation, the reciprocating plate 34 can seal the humidifying station 53 and the temperature-raising station 54, preventing the destruction of the humid environment and the high-temperature environment, which may affect the detection accuracy of the relay under test 7. While the transfer disk 3 drives the storage box 4 to move circumferentially, it also drives the first supporting ring 35 and the second supporting ring 36 to rotate synchronously. When the protrusions 37 at the upper ends of the first supporting ring 35 and the second supporting ring 36 come into contact with the reciprocating plate 34, the reciprocating plate 34 can be lifted upward, facilitating the upward movement of the reciprocating plate 34 above the storage box 4 and avoiding interference with the circumferential movement of the storage box 4 by the reciprocating plate 34. After the storage box 4 passes through below the reciprocating plate 34, the protrusions 37 at the upper ends of the first supporting ring 35 and the second supporting ring 36 are separated from the reciprocating plate 34, causing the reciprocating plate 34 to move downward and reset under the action of gravity.

[0047] It should be noted that the transfer disk 3 only pauses when driving the storage box 4 and the relay under test 7 to move circumferentially to the feeding station 32, the humidifying station 53, and the temperature-raising station 54. Therefore, when the transfer disk 3 drives the storage box 4 to pass through below the reciprocating plate 34, it does not pause, ensuring that the storage box 4 quickly passes through the reciprocating plate 34 and preventing the reciprocating plate 34 from remaining in the upward position for a long time, which may damage the simulated environment inside the humidifying station 53 and the temperature-raising station 54. In addition, after each up-and-down reciprocating movement of the reciprocating plate 34, the transfer disk 3 pauses, facilitating the sprayer 51 and the air pump 52 to humidify and raise the temperature inside the humidifying station 53 and the temperature-raising station 54 respectively, so as to maintain the detection environment for the relay under test 7.

[0048] Refer to Figure 4 and Figure 5As shown, in order to ensure the stability of the relay 7 to be tested during the detection process, in this embodiment, the relay 7 to be tested installed inside the storage box 4 can be correspondingly limited and fixed. Specifically, a pressing plate 41 is hinged to one side of the upper end of the storage box 4 close to the moving direction of the transfer disk 3 through a torsion spring. A plurality of top blocks 42 are installed on the upper end of the transfer disk 3 and are respectively located on the side of the pressing plate 41 away from the storage box 4. The torsion spring always applies a driving force to the pressing plate 41, so that the pressing plate 41 rotates to the side away from the storage box 4 and abuts against the side wall of the top block 42 in the initial state. At this time, the pressing plate 41 maintains a vertical state (shown in Figure 4 ). A plurality of support spring rods 43 are installed on the side of the pressing plate 41 close to the storage box 4, and the support spring rods 43 always apply a pushing force to the actuating pressing plate 44 away from the pressing plate 41.

[0049] Furthermore, in this embodiment, the pressing plate 41 is of an arc-shaped structure. The side of the pressing plate 41 away from the storage box 4 is an arc-shaped convex surface, and a stress elastic sheet 45 is arranged on the side of the pressing plate 41 away from the storage box 4.

[0050] During specific operation, after the relay 7 to be tested is installed inside the storage box 4, the transfer disk 3 rotates and drives the storage box 4 to move circumferentially, and the storage box 4 drives the pressing plate 41 to move synchronously. When the storage box 4 moves into the arc-shaped cover 31, the pressing plate 41 abuts against the inner top wall of the arc-shaped cover 31, so that the pressing plate 41 can be squeezed from the vertical state to the horizontal state through the arc-shaped cover 31 (shown in Figure 5 ). At this time, the pressing plate 41 drives the actuating pressing plate 44 to abut against the upper end of the relay 7 to be tested through the support spring rods 43, so as to automatically press and limit the relay 7 to be tested through the linkage effect among the transfer disk 3, the arc-shaped cover 31, the pressing plate 41 and the actuating pressing plate 44. When the transfer disk 3 drives the storage box 4 and the pressing plate 41 to move to the loading station 32, the pressing plate 41 moves out of the arc-shaped cover 31. At this time, the pressing plate 41 resets to the vertical state under the action of the torsion spring and drives the actuating pressing plate 44 to release the limiting effect on the relay.

[0051] In addition, the stress elastic sheet 45 itself has elasticity. When the pressing plate 41 is in the horizontal state, the stress elastic sheet 45 at the upper end of the pressing plate 41 is in sliding contact with the inner top wall of the arc-shaped cover 31. At this time, the stress elastic sheet 45 is pressed by the arc-shaped cover 31 and presses the pressing plate 41 downward after overcoming the elasticity of the torsion spring, so as to ensure that the pressing plate 41 always maintains a horizontal state inside the arc-shaped cover 31, and further ensure that the actuating pressing plate 44 always presses and limits the relay 7 to be tested.

[0052] It should be noted that a notch is provided at the lower end of the reciprocating plate 34 for the pressing plate 41 to pass through smoothly. When the transfer disk 3 drives the storage box 4 to move below the reciprocating plate 34, the reciprocating plate 34 moves upward under the action of the protrusion 37, and the inner top wall of the notch at the bottom of the reciprocating plate 34 is flush with the inner top wall of the arc-shaped housing 31, so that the pressing plate 41 and the stress elastic piece 45 can pass through the notch, and the inner top wall of the notch can also apply a squeezing force to the stress elastic piece 45; in addition, a baffle 341 for sealing the notch is slidably installed on the inner top wall of the notch. When the reciprocating plate 34 moves upward, it drives the baffle 341 to move upward, so that the distance between the baffle 341 and the transfer disk 3 is greater than the height of the top block 42, facilitating the top block 42 to pass through the notch smoothly. Subsequently, when the pressing plate 41 passes through the notch, it can push the baffle 341 upward through the arc-shaped structure, so as to pass through the notch smoothly. Then, the baffle 341 moves downward and resets under the action of gravity.

[0053] Referring to Figure 2 、 Figure 6 and Figure 7 As shown in the figure, in order to facilitate the load detection of the relay 7 to be tested in different environments, in this embodiment, a corresponding environment manufacturing mechanism 5 is also provided. Specifically, the environment manufacturing mechanism 5 further includes a supporting plate 55 installed on the bracket 2. The supporting plate 55 is located below the supporting disk 1. A power supply 551 and an electronic load 552 are installed at the upper end of the supporting plate 55. A power supply socket 553 is arranged inside the storage box 4, and the power supply socket 553 has a plurality of sockets for adapting to different types of relays.

[0054] Furthermore, in this embodiment, a signal receiver 554 and a controller 555 are also installed at the upper end of the supporting plate 55. The sprayer 51, the air pump 52, the power supply 551, the electronic load 552 and the signal receiver 554 are respectively electrically connected to the controller 555. A display screen 556 electrically connected to the controller 555 is installed on the supporting plate 55 through a stabilizing frame; an input wire 557 and an output wire 558 are installed on the power supply socket 553. An electric slip ring 559 is installed inside the hollow shaft 11. One ends of the input wire 557 and the output wire 558 away from the power supply socket 553 are respectively connected to the power supply 551 and the electronic load 552 through the electric slip ring 559.

[0055] It should be noted that the controller 555, the electronic load 552, and the electrical slip ring 559 used in this embodiment are all prior arts. Among them, the controller 555 is a programmable PLC controller 555, which is used to receive and transmit signals and automatically control the power supply 551, the load, the sprayer 51, and the air pump 52 to work; the electronic load 552 is a device that can simulate various load conditions (such as resistive, inductive, capacitive loads, etc.), and is used to load the output end of the relay 7 to be tested to test its switching ability and stability under actual working conditions; the electrical slip ring 559 is used to connect the wires of the upper and lower parts of the hollow shaft 11, and can transmit the power supply 551 and the signal power supply 551 during unlimited continuous rotation. Therefore, when the hollow shaft 11 rotates and the power supply 551 and the electronic load 552 cannot rotate, the electrical slip ring 559 can ensure the electrical connection between the power supply socket 553 and the power supply 551 and the electronic load 552.

[0056] Furthermore, in this embodiment, a water tank 511 for supplying water to the sprayer 51 and an air electric heater 521 are further installed on the supporting plate 55. The air electric heater 521 is connected to the air pump 52 through a conduit.

[0057] During specific operation, the relay 7 to be tested is plugged into the power supply socket 553. The relay 7 to be tested can be made to simulate the operation of the load through the power supply 551 and the electronic load 552. At the same time, the controller 555 makes the sprayer 51 and the air pump 52 be powered on and start. The sprayer 51 pumps water from the water tank 511 and sprays it into the humidification station 53 for humidification. The air pump 52 extracts the heated air from the air electric heater 521 and sprays it into the temperature-raising station 54; subsequently, the transfer disk 3 drives the storage box 4 and the relay 7 to be tested to move circumferentially into the humidification station 53, so as to simulate the operation of the relay 7 to be tested under a humid environment with a load. When the transfer disk 3 drives the storage box 4 and the relay 7 to be tested to move into the temperature-raising station 54, it can simulate the operation of the relay 7 to be tested under a high-temperature environment with a load, thereby detecting the tolerance of the relay 7 to be tested under different environments when loaded, so as to ensure the detection effect and reliability of the tolerance of the relay 7 to be tested; during the detection process, the signal receiver 554 sends the detection results to the display screen 556 in real time through the controller 555, so as to facilitate the detection personnel to view in real time.

[0058] Embodiment Two: Refer to Figure 8 and Figure 9As shown in the figure, based on the first embodiment, since the relay under test 7 is prone to vibration during transportation and use, for this reason, in order to further improve the tolerance detection of the relay under test 7, the relay under test 7 can also be subjected to vibration detection in this embodiment. Specifically, support fins 61 are installed on both side walls in the length direction of the storage box 4. Grooves for accommodating the support fins 61 are provided on the transfer tray 3. A plurality of equally spaced reset spring rods 62 are installed between the upper and lower ends of the support fins 61 and the grooves. The reset spring rods 62 always apply a supporting elastic force to the support fins 61, and equal supporting elastic forces are received on the upper and lower sides of the support fins 61. Therefore, the support fins 61 are located in the middle of the groove in the initial state.

[0059] Furthermore, in this embodiment, a plurality of bosses 63 are equidistantly arranged along the width direction at the lower end of the storage box 4. A plurality of positioning strips 64 are installed on the upper end of the support disk 1 between the loading station 32 and the humidifying station 53, and the positioning strips 64 are staggered with the bosses 63. An arc-shaped pad 65 is installed on the upper end of the support disk 1 below the humidifying station 53, the heating station 54 and the loading station 32. The arc-shaped pad 65 abuts against the bosses 63.

[0060] During specific operation, when the transfer tray 3 drives the storage box 4 to move circumferentially between the loading station 32 and the humidifying station 53, the positioning strips 64 and the plurality of bosses 63 come into contact in sequence. When the positioning strip 64 abuts against the boss 63, it drives the storage box 4 to move upward. When the positioning strip 64 is between two bosses 63, it drives the storage box 4 to move downward and reset under the action of the reset spring rod 62. In this way, through the cooperation of the positioning strip 64 and the boss 63, the up-and-down reciprocating vibration of the storage box 4 can be controlled, so as to simulate the tolerance of the relay under test 7 to the vibration effect when under load, and further improve the detection effect of the relay under test 7; when the transfer tray 3 drives the storage box 4 to move to the humidifying station 53, the heating station 54 and the loading station 32, the positioning strip 64 abuts against the upper end of the arc-shaped pad 65. Therefore, the storage box 4 does not vibrate, ensuring its stability during the movement process.

[0061] In addition, the present invention also provides a method for detecting the tolerance of a relay, including the following steps:

[0062] S1: Relay installation: First, start the intermittent motor 13. The intermittent motor 13 drives the gear 14 to rotate. The gear 14 cooperates with the gear ring 12 to drive the hollow shaft 11 and the transfer tray 3 as a whole to perform intermittent rotation. When the transfer tray 3 drives the storage box 4 to move to the loading station 32, the relay under test 7 is inserted into the power supply socket 553 in the storage box 4. Through the power supply 551 and the electronic load 552, the relay under test 7 can simulate the load operation.

[0063] S2: Relay transportation: The intermittent motor 13 drives the transfer disk 3 to continue rotating, causing the transfer disk 3 to drive the storage box 4 and the relay under test 7 to move circumferentially and sequentially move from the loading station 32 to the humidifying station 53 and the temperature-rising station 54 for tolerance testing; when the transfer disk 3 drives the storage box 4 to move inside the arc-shaped cover 31, the pressing plate 41 contacts the inner top wall of the arc-shaped cover 31 and is squeezed to a horizontal state. At this time, the pressing plate 41 drives the actuating pressing plate 44 to abut against the upper end of the relay under test 7 through the support spring rod 43, thereby automatically pressing and limiting the relay under test 7 to ensure the stability of the relay under test 7 during the detection process.

[0064] S3: Environment adjustment: The controller 555 is used to connect the sprayer 51 and the air pump 52 to power and start them. The sprayer 51 pumps water from the water tank 511 and sprays it into the humidifying station 53 for humidification, and the air pump 52 extracts the heated air from the air electric heater 521 and sprays it into the temperature-rising station 54; then the transfer disk 3 drives the storage box 4 and the relay under test 7 to move circumferentially into the humidifying station 53 to simulate the relay under test 7 working under load in a humid environment. When the transfer disk 3 drives the storage box 4 and the relay under test 7 to move into the temperature-rising station 54, it can simulate the relay under test 7 working under load in a high-temperature environment, thereby detecting the tolerance of the relay under test 7 in different environments when under load; during the detection process, the signal receiver 554 sends the detection results to the display screen 556 in real time through the controller 555 for the inspectors to view in real time.

[0065] S4: Detection completion: After the relay under test 7 is detected, the transfer disk 3 drives the detected relay back to the loading station 32, and the pressing plate 41 moves out of the arc-shaped cover 31. At this time, the pressing plate 41 resets to the vertical state under the action of the torsion spring and drives the actuating pressing plate 44 to release the limiting effect on the relay, so as to remove it and install the relay under test 7 in the storage box 4.

[0066] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms.

[0067] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. The narrative way of this specification is only for clarity. Those skilled in the art should regard this specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A relay tolerance detection device, characterized in that: include: A support plate (1) having a bracket (2) mounted on the bottom thereof; A transfer plate (3) is rotatably mounted on the upper end of the support plate (1), and a plurality of annularly distributed storage boxes (4) for placing the relays (7) to be tested are mounted on the upper end of the transfer plate (3); An arc-shaped cover (31) is mounted on the upper end of the support plate (1) and covers the transfer plate (3). Either side of the arc-shaped cover (31) has a fan-shaped opening for installing and removing a loading station (32) for the relay. An environment manufacturing mechanism (5) is installed between the bracket (2) and the support plate (1) and is used to simulate the relay being in different environments when the load is working in different independent spaces. The environment manufacturing mechanism (5) includes a sprayer (51) and an air pump (52) respectively connected to the different independent spaces. The independent spaces connected to the sprayer (51) and the air pump (52) are respectively a humidification station (53) and a heating station (54) for simulating the relay in different environments. The arc-shaped cover shell (31) is slidably provided with a reciprocating plate (34) for dividing the interior of the arc-shaped cover shell (31) into a plurality of independent spaces; a first top support ring (35) and a second top support ring (36) on the same axis are mounted on the upper end of the transfer plate (3); the reciprocating plate (34) is slidably engaged with the upper ends of the first top support ring (35) and the second top support ring (36); A plurality of protrusions (37) corresponding to the positions of the storage boxes (4) are mounted on the upper ends of the first top support ring (35) and the second top support ring (36); the protrusions (37) are gradually inclined downward on the side close to the rotation direction of the transfer plate (3), and the height of the protrusions (37) is greater than the height of the storage boxes (4); A notch is formed at the lower end of the reciprocating plate (34), and a baffle (341) for sealing the notch is slidably mounted on the top wall of the notch; The environment manufacturing mechanism (5) further comprises a support plate (55) mounted on the bracket (2), the support plate (55) being located below the support plate (1), a power supply (551) and an electronic load (552) being mounted on the upper end of the support plate (55), a power supply socket (553) being arranged inside the storage box (4), and a plurality of sockets for adapting to relays of different models being arranged on the power supply socket (553); A signal receiver (554) and a controller (555) are also installed on the upper end of the support plate (55); the sprayer (51), the air pump (52), the power supply (551), the electronic load (552) and the signal receiver (554) are electrically connected to the controller (555), respectively; and a display screen (556) electrically connected to the controller (555) is installed on the support plate (55) via a stabilizing frame; An input wire (557) and an output wire (558) are installed on the power supply socket (553), an electric slip ring (559) is installed inside the hollow shaft (11), and ends of the input wire (557) and the output wire (558) away from the power supply socket (553) are respectively connected to the power supply (551) and the electronic load (552) through the electric slip ring (559).

2. A relay tolerance detection device according to claim 1, characterized in that: A hollow shaft (11) is rotatably mounted in the middle of the support plate (1), the hollow shaft (11) is inserted into the middle of the transfer plate (3), and a gear ring (12) is sleeved on the lower end of the hollow shaft (11). An intermittent motor (13) is arranged at the lower end of the support plate (1) through a motor seat, and an output shaft sleeve of the intermittent motor (13) is provided with a gear (14) meshing with the gear ring (12).

3. A relay tolerance detection device according to claim 1, characterized in that: A pressure plate (41) is hingedly connected to the upper end of the storage box (4) on the side close to the moving direction of the transfer plate (3) via a torsion spring; a plurality of top blocks (42) are mounted on the upper end of the transfer plate (3) and are located on the side of the pressure plate (41) away from the storage box (4); an execution plate (44) is mounted on the side of the pressure plate (41) close to the storage box (4) via a plurality of supporting spring rods (43).

4. A relay tolerance detection device according to claim 3, characterized in that: The pressing plate (41) is an arc-shaped structure, and the side of the pressing plate (41) away from the storage box (4) is an arc-shaped convex surface, and a force-bearing spring sheet (45) is provided on the side of the pressing plate (41) away from the storage box (4), and the force-bearing spring sheet (45) at the upper end of the pressing plate (41) is in sliding contact with the inner top wall of the arc-shaped cover shell (31) in a horizontal state.

5. A relay tolerance detection method, using a relay tolerance detection device as claimed in any one of claims 1 to 4, characterized in that: The detection method includes the following steps: S1: Relay installation: First, install the relay to be tested (7) in the storage box (4); S2: Relay operation: The transfer plate (3) drives the storage box (4) and the relay to be tested (7) to intermittently move in a circumferential direction, and move to the humidification station (53) and the heating station (54) in sequence; S3: Adjusting the environment: The environment manufacturing mechanism (5) can simulate the humid environment and high temperature environment of the relay to be tested (7) during actual use; S4: Detection completed: The transfer plate (3) drives the relay that has been tested to be transported back to the loading station (32) so that it can be removed and installed in the storage box (4) with the relay to be tested (7).

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