Relay verification device with limiting and fixing mechanism and method

Abstract

The invention discloses a relay verification device and method with a limiting and fixing mechanism, and the method comprises the steps: cleaning and arranging a verification device, guaranteeing the clean environment and enough space for operation, checking whether the verification device is complete and has normal functions, preparing a to-be-verified novel relay, enabling the relay to open a limiting frame in an insertion process, and carrying out the verification of the to-be-verified novel relay. The torsion spring is tightened through the connecting shaft, the torsion spring is reset after complete insertion to achieve primary limiting and positioning, then other relays can be conveniently inserted, operation is convenient, due to the fact that the upper end of the limiting frame is an isosceles triangle, the limiting frame can be expanded by lifting the contact inclined face upwards during taking and placing, taking and placing can be fast, and the device is more convenient and efficient in relay limiting and using. The detection efficiency and convenience are improved, the whole process is smooth and natural, and stable limiting and convenient operation of the relay in the detection process are ensured.

Description

Technical Field

[0001] The invention relates to the technical field of electric power maintenance, in particular to a relay calibration device and method with a limit and fixing mechanism. Background Art

[0002] Relay is an extremely important electrical control component. In essence, it is equivalent to an "automatic switch" that uses a small current to control the operation of a large current. It is usually composed of an iron core, a coil, an armature, a contact spring and other parts. When the coil is energized, it will generate electromagnetic attraction, prompting the armature to move, and then drive the opening and closing of the contacts, thereby realizing the on-off switching of the circuit. Relays play many key roles in the circuit, such as signal conversion, isolation, and amplification. They are widely used in many fields such as power systems, automatic control, communications, and electronic equipment. It has the ability to quickly and accurately control the output circuit state according to the changes in the input signal, providing a strong guarantee for the stable operation and safety and reliability of the circuit. It occupies an indispensable and important position in modern industrial production and daily life. The Chinese patent with the publication number "CN215678662U" discloses a relay calibration device, which includes a bottom box with an opening on the top, and a box cover for closing the opening is hingedly installed on one side of the top of the bottom box. The utility model inserts the terminal of the relay into the socket, and then fixes the relay with the help of a fixing component installed on the outside of the socket, which effectively avoids the situation where the terminal and the socket are disconnected due to external influences. At the same time, the tool storage component can fix the calibration tool, which is convenient for storing the calibration tool in the bottom box, so that it is easy for the staff to carry. In this way, the problem that the terminal is disconnected from the circuit due to external influences during the relay calibration process, thereby affecting the calibration work and reducing the work efficiency, is solved. It also solves the problem that most calibration devices cannot carry calibration tools, so that the staff can only place the calibration tools in the tool bag, which is inconvenient to carry the calibration device and the tool at the same time. However, during actual use, although the above-mentioned device has the advantages of being easy to carry and capable of rapid detection, it still has certain defects and shortcomings in the specific application process. First, during its use, the overall positioning structure is relatively simple, and manual adjustment of bolts is required to perform clamping operations during positioning. The overall positioning operation is relatively cumbersome and inconvenient. Secondly, during its use, only one relay can be tested at a time. When faced with a large number of relay detection needs, they can only be tested one by one. The overall detection operation is relatively complicated and inconvenient, so it needs to be improved and optimized. Summary of the invention

[0003] The present invention provides a relay calibration device and method with a limiting and fixing mechanism, aiming to solve the problem that during the use of the existing calibration device, the overall positioning structure is relatively simple, and manual adjustment of bolts is required to perform clamping operations during positioning, and the overall positioning operation is relatively cumbersome and inconvenient. Secondly, it solves the problem that during the use of the existing calibration device, only one relay can be tested at a time. When faced with the need to detect a large number of relays, they can only be tested one by one, and the overall detection operation is relatively complicated and inconvenient.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: A relay calibration device with a limiting and fixing mechanism comprises a box body, a box cover which can be opened and closed is provided on the top of the box body, one side of the box cover is hingedly connected to one side of the top of the box body by a hinge, a touch-control tablet computer is embedded in the side of the box cover close to the box body, a detection platform is movably embedded in the box body, a lifting mechanism is provided in the middle of the rear side of the box body, and the detection platform and the lifting mechanism form a linkage cooperation, a plurality of groups of concave seats are fixedly installed at equal intervals on the top of the detection platform, a positioning mechanism is provided in the middle of the detection platform, and the positioning mechanism is located on both sides of each group of concave seats and limiting members are provided, each group of concave seats includes two concave seats symmetrically arranged about the positioning mechanism, each of the concave seats is provided with an electrical socket on the inner side, and elastic limiting mechanisms are relatively provided on both sides of each electrical socket, and the positioning mechanism and the lifting mechanism are both electrically connected to the touch-control tablet computer.

[0005] Preferably, a limit plate is provided on one side of the box cover close to the hinge, and the limit plate is flush with the top of the box cover. When the box cover is flipped to an angle of 90° with the box opening, the limit plate and the box body form a limit fit.

[0006] As a more preferred embodiment, a fixing seat is fixedly installed in the middle of the top of the box cover, and a bridge-type handrail is fixedly installed on the top of the fixing seat.

[0007] Furthermore, the lifting mechanism includes a mounting groove and a slide groove, the slide groove is opened in the middle of the inner rear side of the chassis, the mounting groove is opened in the middle of the bottom rear side of the chassis, the mounting groove and the slide groove overlap in the vertical direction, the inner side of the mounting groove is fixedly connected to the first motor, a vertically arranged reciprocating screw is rotatably installed in the inner middle position of the slide groove, the output shaft of the first motor forms a coupling linkage with the reciprocating screw, a slide plate is slidably installed in the slide groove, one end of the slide plate is fixedly matched with the detection table, the reciprocating screw passes through the slide plate, and the slide plate and the reciprocating screw form a linkage.

[0008] Furthermore, the overall cross-sectional shape of the slide groove is convex, and the overall cross-sectional shape of the slide plate is also convex, and the outer surface of the slide plate and the inner wall of the slide groove are fixedly connected with wear-resistant gaskets.

[0009] Specifically, the elastic limiting mechanisms all include an arc-shaped groove, which is opened on both sides of the power socket, a torsion spring is fixedly connected to one end of the inner side of the arc-shaped groove, a turntable is fixedly installed on the other end of the torsion spring, a connecting shaft is fixedly connected to the outer side of the turntable, and the connecting shaft forms a resettable damping rotation fit with the arc-shaped groove through the torsion spring. A limit frame is provided above the torsion spring, and one side of the bottom of the limit frame is fixedly connected to the connecting shaft, and the upper end of the limit frame is arranged in an isosceles triangle.

[0010] More specifically, the positioning mechanism includes a movable groove and a second motor. The movable groove is opened in the middle of the top of the testing platform. The inside of the movable groove is fixedly connected with driving components at equal intervals. The driving components are connected by connecting shafts to form a linkage. The second motor is fixedly installed in the middle of one side of the testing platform. The output shaft of the second motor forms a linkage with the driving component on one side. Limiting parts are installed on both sides of each driving component in a linkage manner.

[0011] In detail, the limiting member includes a concave frame, which is fixedly installed on the inner side of the movable groove at equal intervals. A threaded rod is rotatably connected to the inner side of each concave frame. The outer end of the threaded rod closest to the second motor forms a coupling linkage with the output shaft of the second motor. Couplings are provided between the concave frames, and a coupling linkage is formed between each threaded rod through the coupling. The threads at both ends of the threaded rod have opposite rotation directions, and the two ends of the threaded rod are respectively threadedly connected with movable blocks. Corresponding limiting members are provided on the top of the movable blocks, and the limiting members of the movable blocks on the same threaded rod are arranged relatively.

[0012] In more detail, the limiting member includes a support plate, which is fixedly installed on the top of the movable block, and a splint is fixedly installed on the top of the support plate. A plurality of telescopic springs are fixedly connected to the inner side of the splint at equal intervals, and the other end of the telescopic spring is fixedly installed on the same anti-slip pad. The anti-slip pad is parallel to the splint, and the anti-slip pad forms an elastic support with the splint through the telescopic spring. A support shaft is fixedly connected to the outer side of the anti-slip pad at equal intervals, and the support shaft corresponds to the telescopic spring one by one, and the support shaft is concentrically and coaxially movably embedded in the telescopic spring, and the outer side of the support shaft passes through the splint.

[0013] A method for checking a relay with a limit and fixing mechanism, using the above-mentioned relay checking device with a limit and fixing mechanism to check multiple relays at the same time, comprises the following steps: Step 1: Preparation before calibration. First, you need to clean and arrange the calibration equipment, ensure that the environment is clean and there is enough space for operation, check whether the calibration equipment is complete and functions normally, and prepare the new relays to be calibrated to ensure that the quantity and batch information are accurate. Step 2: Confirm the environmental conditions. Carefully check the temperature, humidity and other parameters of the working environment to ensure that they are within the specified range. If the environmental conditions do not meet the standards, make adjustments. Step 3: Relay grouping and identification: a large number of relays to be inspected are carefully grouped according to model, specification, batch and other characteristics, so as to facilitate the subsequent targeted inspection operation. At the same time, each relay is clearly identified, which can be done by labeling or numbering, to ensure that the specific situation of each relay can be accurately identified and recorded during the entire inspection process; Step 4: Verification parameter setting. According to the technical specifications and verification requirements of the relay, various parameters are accurately set on the verification device through the touch tablet computer, specifically the working voltage, current threshold, action time, and clamping positioning range, etc. The lifting mechanism is controlled by the touch tablet computer to adjust the test table to a suitable height, and the positioning mechanism is controlled to adjust to a suitable position; Step 5: Build the verification circuit. According to the characteristics of the verification device and relay, build the verification circuit reasonably, ensure that all connecting cables are firm and reliable, avoid looseness or poor contact during the test, and carefully check the layout and connection of the circuit to ensure that it meets safety regulations and verification requirements; Step 6: Appearance and initial inspection: Perform a comprehensive appearance inspection on each relay to check whether there is any damage to the shell, deformation of the pins, unclear markings, etc. Then, without power on, conduct a preliminary inspection of the relay pin conductivity, initial contact status, etc. to prepare for subsequent power-on testing; Step 7: Preliminary power-on test: insert the relay into the power socket of the calibration device, and power on the relay to observe its response in the initial power-on state. The preliminary test can help find some obvious faults or abnormal phenomena and deal with them in time; Step 8: Detailed performance verification, start to verify the performance indicators of the relay, such as measuring the action time, using high-precision timing equipment to record the time from the relay receiving the signal to the contact action; detecting the contact resistance, using professional resistance measuring instruments to measure the resistance value between the contacts, and also including verifying the relay's pull-in voltage, release voltage, insulation resistance and other key performance parameters; Step 9: Data recording and organization. During the calibration process of each relay, record the test data and results in detail, including parameter settings, actual measurement values, whether it is qualified, etc., and organize these data into standardized tables or documents to facilitate subsequent analysis and tracing; Step 10: Result analysis and processing. According to the recorded data, conduct in-depth analysis and judgment on the verification results of each relay. For qualified relays, mark them and store them in the designated area. For unqualified relays, clearly record the reasons for their failure and take corresponding treatment measures, such as repair, replacement or scrapping. Finally, summarize and evaluate the results of the entire batch verification to provide reference and improvement direction for subsequent work.

[0014] Beneficial effects of the present invention: First, in the present invention, when testing, the relay can be inserted downward into the power socket. During the insertion process, the relay opens the limit frame, the connecting shaft tightens the torsion spring, and after it is fully inserted, the torsion spring resets to achieve preliminary limit positioning, and then other relays can be easily inserted. The operation is convenient. Because the upper end of the limit frame is an isosceles triangle, the limit frame can be opened by pulling up the contact slope when taking it, and it can be quickly taken and placed, which makes the device more convenient and efficient in limiting and using the relay, improves the detection efficiency and convenience, and the whole process is smooth and natural, ensuring the stable limit and convenient operation of the relay during the detection process; Secondly, in the present invention, by starting the first motor to drive the reciprocating screw to rotate, the slide plate slides in the slide groove, so as to flexibly adjust the height of the detection table, so that the height of the device can be flexibly changed, and the power sockets are arranged at equal intervals, and there are elastic limit and positioning mechanisms on the outside, which can detect multiple groups of relays at the same time, ensuring that they are stable on the top of the power sockets, so that the device has strong detection stability, and multiple groups of power sockets with equal intervals can also detect multiple groups of relays at the same time, improving detection efficiency and convenience of use. This design makes the device more advantageous in use and can meet various needs; Thirdly, in the present invention, if the relay needs to be clamped and positioned more stably, the second motor can be started to drive the threaded rod to rotate. Since the threaded rods are connected by a connecting shaft, the threaded rods in the movable groove all rotate, and the threads at both ends of the threaded rod have opposite rotation directions. The rotation can make the movable block slide against each other in the movable groove, thereby driving the support plate and the clamping plate to move. The displacement of the clamping plate makes the anti-slip pad contact the two ends of the relay. The telescopic spring provides elastic force to allow the anti-slip pad to have a certain extension space. In conjunction with the movable block and the threaded rod drive, it can stably clamp relays of different sizes. In conjunction with the elastic limit mechanism, it can be positioned more stably to avoid falling off. The automatic clamping design improves the stability and convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure in the present invention when viewed from above; Figure 3 It is a schematic diagram of the internal structure of the box in the present invention; Figure 4 It is a schematic diagram of the lifting mechanism structure in the present invention; Figure 5 It is a schematic diagram of the structure of the detection platform and the elastic limiting mechanism in the present invention; Figure 6 It is a schematic diagram of the positioning mechanism structure in the present invention; Figure 7 It is a schematic diagram of the structure of the power socket and the elastic limiting mechanism in the present invention.

[0016] In the figure: 1. Box body; 2. Hinged parts; 3. Box cover; 4. Touch panel computer; 5. lifting mechanism; 51. mounting groove; 52. slide groove; 53. first motor; 54. reciprocating screw; 55. slide plate; 6. Positioning mechanism; 61. Movable slot; 62. Second motor; 63. Positioning member; 631. Support plate; 632. Clamping plate; 633. Telescopic spring; 634. Anti-skid pad; 635. Support shaft; 64. Driving assembly; 641. Concave frame; 642. Threaded rod; 643. Connecting shaft; 644. Movable block; 7. Concave seat; 8. Power socket; 9. elastic limiting mechanism; 91. arc groove; 92. torsion spring; 93. rotating disk; 94. connecting shaft; 95. limiting frame; 10. Testing table; 11. Limiting plate; 12. Fixed seat; 13. Bridge handrail. DETAILED DESCRIPTION

[0017] As follows, embodiments are further described with reference to the accompanying drawings.

[0018] like Figure 1 to Figure 7 As shown, as a preferred embodiment 1, a relay testing device with a limiting and fixing mechanism comprises a box body 1, a box cover 3 which can be opened and closed is provided on the top of the box body 1, one side of the box cover 3 is hingedly connected with one side of the top of the box body 1 through a hinge 2, a touch-controlled tablet computer 4 is embedded on the side of the box cover 3 close to the box body 1, a testing platform 10 is movably embedded in the box body 1, a lifting mechanism 5 is provided in the middle of the rear side of the box body 1, and the testing platform 10 and the lifting mechanism 5 form a linkage, a plurality of groups of concave seats 7 are fixedly installed at equal intervals on the top of the testing platform 10, a positioning mechanism 6 is provided in the middle of the testing platform 10, and the positioning mechanism 6 is located on both sides of each group of concave seats 7. Limiting members 63 are provided, and each group of concave seats 7 includes two concave seats 7 symmetrically arranged about the positioning mechanism 6, and each of the concave seats 7 has a inner side. An electrical socket 8 is provided, and elastic limiting mechanisms 9 are relatively provided on both sides of each electrical socket 8. The positioning mechanism 6 and the lifting mechanism 5 are both electrically connected to the touch tablet computer 4. The top rear side of the box body 1 is connected to the box cover 3 through a hinge 2 for convenient opening and closing. The touch tablet computer 4 on the inside of the box cover 3 is convenient for operation and display. The lifting mechanism 5 in the middle of the inner rear side of the box body 1 can flexibly adjust the height of the test bench 10 to meet different usage requirements. A concave seat 7 and an electrical socket 8 are evenly spaced on the top of the test bench 10 for convenient testing. The elastic limiting mechanism 9 on the inside of the concave seat 7 and the positioning mechanism 6 in the middle can stably clamp and position relays of different sizes to ensure that the relays will not fall off during the detection process, thereby enhancing the stability and safety of the detection. At the same time, its evenly spaced arrangement can also improve the detection efficiency, and the overall use is convenient and efficient.

[0019] The lifting mechanism 5 includes a mounting groove 51 and a slide groove 52. The slide groove 52 is opened in the middle of the rear side of the chassis, and the mounting groove 51 is opened in the middle of the bottom rear side of the chassis. The mounting groove 51 and the slide groove 52 overlap in the vertical direction. The inner side of the mounting groove 51 is fixedly connected with a first motor 53. A vertically arranged reciprocating screw 54 is rotatably installed in the middle position of the inner side of the slide groove 52. The output shaft of the first motor 53 forms a coupling linkage with the reciprocating screw 54. A slide plate 55 is slidably installed in the slide groove 52. One end of the slide plate 55 is fixedly matched with the detection table 10. The reciprocating screw 54 passes through the slide plate 55, and the slide plate 55 is connected to the reciprocating screw 54. The compound screw 54 forms a linkage cooperation, the nut of the reciprocating screw 54 is fixedly matched with the slide plate 55, the reasonable setting of the mounting groove 51 and the slide groove 52 provides space for the operation of the mechanism, and the first motor 53 is fixed in the mounting groove 51 to ensure its stability. The motor drives the reciprocating screw 54 to rotate in the slide groove 52. By using the reciprocating screw 54, the up and down reciprocating operation of the detection platform 10 can be achieved by starting the first motor 53 without changing the rotation direction, thereby driving the detection platform 10 to achieve flexible height adjustment. This lifting method is stable and reliable, and can meet the requirements for the height of the detection platform 10 in different scenarios.

[0020] The overall cross-sectional shape of the slide groove 52 is in a convex shape, and the overall cross-sectional shape of the slide plate 55 is also in a convex shape. The outer surface of the slide plate 55 and the inner wall of the slide groove 52 are fixedly connected with wear-resistant gaskets. The convex shape allows the slide plate 55 to fit well in the slide groove 52, ensuring the stability and directionality of the sliding. At the same time, the outer surfaces and inner walls of both are fixedly connected with wear-resistant gaskets, which greatly enhances the wear resistance of the slide groove 52 and the slide plate 55, reduces friction loss, and extends the service life of the mechanism. In actual use, it can ensure long-term and stable lifting and lowering actions, and will not cause problems such as failures or reduced accuracy due to frequent friction, making the lifting process smoother and more reliable, and also providing a strong guarantee for the stable operation of the entire calibration device.

[0021] The elastic limiting mechanism 9 includes an arc groove 91, which is provided on both sides of the power socket 8. A torsion spring 92 is fixedly connected to one end of the inner side of the arc groove 91, and a turntable 93 is fixedly installed on the other end of the torsion spring 92. A connecting shaft 94 is fixedly connected to the outer side of the turntable 93. The connecting shaft 94 forms a resettable damping rotation cooperation with the arc groove 91 through the torsion spring 92. A limiting frame 95 is provided above the torsion spring 92. One side of the bottom of the limiting frame 95 is fixedly connected to the connecting shaft 94. The upper end of the limiting frame 95 is arranged in an isosceles triangle. The torsion spring 92 is fixed to one end of the inner side of the arc groove 91. The rotating disk 93 is connected to the torsion spring 92, which is connected to the limit frame 95 through the connecting shaft 94, so that the limit frame 95 can move flexibly. The upper end of the limit frame 95 is in an isosceles triangle, which is very clever. It can realize convenient operation when inserting and removing the relay. When the relay is inserted, the limit frame 95 can be propped open and the torsion spring 92 can be used to achieve preliminary limiting. When taking out, it can also be done quickly by cooperating with the triangular inclined surface. Such an elastic limiting mechanism 9 enhances the limiting effect on the relay and ensures the position stability of the relay during the detection process.

[0022] The positioning mechanism 6 includes a movable groove 61 and a second motor 62. The movable groove 61 is opened in the middle of the top of the detection platform 10. The inside of the movable groove 61 is fixedly connected with driving components 64 at equal intervals. The driving components 64 are connected to each other through a connecting shaft 643 to form a linkage. The second motor 62 is fixedly installed in the middle of one side of the detection platform 10. The output shaft of the second motor 62 and the driving component 64 on one side form a linkage. Limiting members 63 are installed on both sides of each driving component 64 in a linkage manner. The second motor 62 is fixed in the middle of one side of the detection platform 10, and its output end is connected to the driving component 64 on one side to provide power for the entire mechanism, ensuring the stability and continuity of the drive. The limiting members 63 on both sides of the top of the driving component 64 can better limit and control the relevant components. This positioning mechanism 6 can accurately and effectively realize the positioning operation of the relay. Through the coordinated action of the driving component 64 and the connecting shaft 643, the positioning action is more accurate and synchronous, which can adapt to the positioning requirements of different relays and improve the reliability and accuracy of the device during the detection process.

[0023] The limiting member 63 includes a concave frame 641, which is fixedly installed on the inner side of the movable groove 61 at equal intervals. A threaded rod 642 is rotatably connected to the inner side of each concave frame 641. The outer end of the threaded rod 642 closest to the second motor 62 forms a coupling linkage with the output shaft of the second motor 62. A coupling shaft 643 is provided between the concave frames 641, and a coupling linkage is formed between each threaded rod 642 through the coupling shaft 643. The threads at both ends of the threaded rod 642 are rotated in opposite directions. The two ends of the threaded rod 642 are respectively threadedly connected with movable blocks 644. The tops of the movable blocks 644 are provided with corresponding limiting members 63. The limiting members 63 of the movable blocks 644 on the same threaded rod 642 are arranged relatively. The concave frames 641 fixedly installed at equal intervals provide stability for the threaded rod 642. The threaded rod 642 is rotatably connected to the inner side of the concave frame 641, and one end is fixedly connected to the output end of the second motor 62, and the linkage between the threaded rods 642 is realized through the connecting shaft 643. This connection method ensures the effective transmission and synchronous action of power. The design of the opposite rotation directions of the threads at both ends of the threaded rod 642 is very clever, so that the movable blocks 644 at both ends can slide inward or outward at the same time under the action of the threads, thereby driving the limit piece 63 connected thereto to achieve precise positioning action. The movable block 644 is fixedly connected to the bottom of the limit piece 63, which ensures the consistency and reliability of the action. Such a limit piece 63 can flexibly and accurately position and adjust the relay to adapt to different detection requirements, thereby improving the positioning performance and efficiency of the entire device.

[0024] The limiting member 63 includes a support plate 631, which is fixedly mounted on the top of the movable block 644. A clamping plate 632 is fixedly mounted on the top of the support plate 631. A plurality of telescopic springs 633 are fixedly connected to the inner side of the clamping plate 632 at equal intervals. The other end of the telescopic spring 633 is fixedly mounted on the same anti-skid pad 634. The anti-skid pad 634 is parallel to the clamping plate 632, and the anti-skid pad 634 forms an elastic support with the clamping plate 632 through the telescopic spring 633. A support shaft 635 is fixedly connected to the outer side of the anti-skid pad 634 at equal intervals. The support shaft 635 corresponds to the telescopic spring 633 one by one, and the support shaft 635 is coaxially and movably embedded in the telescopic spring 633. The outer side of the support shaft 635 all passes through the clamping plate 632. The clamping plate 632 on the top of the support plate 631 plays a fixing and connecting role. The telescopic springs 633 fixed at equal intervals on the inner side of the clamping plate 632 33 is endowed with a certain elastic buffering ability, and the anti-skid pad 634 at its inner end can better contact with the relay and adapt to different shapes through the telescopic spring 633, thereby increasing the stability and adaptability of the clamping. The support shafts 635 at equal intervals on the outside of the anti-skid pad 634 penetrate the clamping plate 632, thereby ensuring the smoothness and stability of the movement of the anti-skid pad 634. The structural design of this limiter 63 enables not only accurate clamping and positioning to be achieved when positioning the relay, but also good anti-skid and buffering effects can be provided through the cooperation of the telescopic spring 633 and the anti-skid pad 634, thereby further improving the reliability and safety of the device in positioning the relay. At the same time, the telescopic spring 633 can perform position compensation through adaptive telescopic buffering, and can clamp products of different sizes that need to be tested, thereby enhancing the adaptability and versatility of the device in different usage scenarios.

[0025] like Figure 2 As shown, as a preferred embodiment 2, a limit plate 11 is provided on one side of the box cover 3 close to the hinge 2, and the limit plate 11 is flush with the top of the box cover 3. When the box cover 3 is flipped to an angle of 90° with the opening of the box body 1, the limit plate 11 forms a limit fit with the box body 1. By providing the limit plate 11, the device can assist in supporting the box cover 3 through the limit plate 11 during use. When the box cover 3 is flipped, the limit plate 11 can contact the back of the box body 1, so that the box cover 3 can be in a 90-degree vertical state, which is convenient for operating the touch tablet computer 4.

[0026] like Figure 1~Figure 2 As shown, as a preferred embodiment 3, a fixing seat 12 is fixedly installed in the middle of the top of the box cover 3, and a bridge-type handrail 13 is fixedly installed on the top of the fixing seat 12. When opening and closing the box cover 3, the user can conveniently hold the bridge-type handrail 13 for operation, which increases the convenience and comfort of operation, and is also conducive to more stable control of the movement of the box cover 3, ensuring the smoothness of the use process.

[0027] See also Figure 1 to Figure 7As a preferred embodiment 4, a method for checking a relay with a limit and fixing mechanism, using the above-mentioned relay checking device with a limit and fixing mechanism to check multiple relays at the same time, comprises the following steps: Step 1: Preparation before calibration. First, you need to clean and arrange the calibration equipment, ensure that the environment is clean and there is enough space for operation, check whether the calibration equipment is complete and functions normally, and prepare the new relays to be calibrated to ensure that the quantity and batch information are accurate. Step 2: Confirm the environmental conditions. Carefully check the temperature, humidity and other parameters of the working environment to ensure that they are within the specified range. If the environmental conditions do not meet the standards, make adjustments. Step 3: Relay grouping and identification: a large number of relays to be inspected are carefully grouped according to model, specification, batch and other characteristics, so as to facilitate the subsequent targeted inspection operation. At the same time, each relay is clearly identified, which can be done by labeling or numbering, to ensure that the specific situation of each relay can be accurately identified and recorded during the entire inspection process; Step 4: Verification parameter setting. According to the technical specifications and verification requirements of the relay, various parameters are accurately set on the verification device through the touch tablet computer 4, specifically the working voltage, current threshold, action time and clamping positioning range, etc., and the lifting mechanism 5 is controlled by the touch tablet computer 4 to adjust the test table 10 to a suitable height, and the positioning mechanism 6 is controlled to adjust to a suitable position; Step 5: Build the verification circuit. According to the characteristics of the verification device and relay, build the verification circuit reasonably, ensure that all connecting cables are firm and reliable, avoid looseness or poor contact during the test, and carefully check the layout and connection of the circuit to ensure that it meets safety regulations and verification requirements; Step 6: Appearance and initial inspection: Perform a comprehensive appearance inspection on each relay to check whether there is any damage to the shell, deformation of the pins, unclear markings, etc. Then, without power on, conduct a preliminary inspection of the relay pin conductivity, initial contact status, etc. to prepare for subsequent power-on testing; Step 7: Perform a preliminary test by powering on the relay. Insert the relay into the power socket 8 of the verification device and power on the relay to observe its response in the initial power-on state. The preliminary test can help discover some obvious faults or abnormal phenomena and handle them in time. Step 8: Detailed performance verification, start to verify the performance indicators of the relay, such as measuring the action time, using high-precision timing equipment to record the time from the relay receiving the signal to the contact action; detecting the contact resistance, using professional resistance measuring instruments to measure the resistance value between the contacts, and also including verifying the relay's pull-in voltage, release voltage, insulation resistance and other key performance parameters; Step 9: Data recording and organization. During the calibration process of each relay, record the test data and results in detail, including parameter settings, actual measurement values, whether it is qualified, etc., and organize these data into standardized tables or documents to facilitate subsequent analysis and tracing; Step 10: Result analysis and processing. According to the recorded data, conduct in-depth analysis and judgment on the verification results of each relay. For qualified relays, mark them and store them in the designated area. For unqualified relays, clearly record the reasons for their failure and take corresponding treatment measures, such as repair, replacement or scrapping. Finally, summarize and evaluate the results of the entire batch verification to provide reference and improvement direction for subsequent work.

[0028] The working principle of the present invention is as follows: by setting a lifting mechanism 5, during use, the device can be started to operate by starting the first motor 53, and the first motor 53 drives the reciprocating screw 54 to rotate, and the reciprocating screw 54 is located on the inner side of the slide groove 52 and rotates, that is, the reciprocating screw 54 can assist in driving the slide plate 55 to slide on the inner side of the slide groove 52, and the slide plate 55 can slide up and down inside the slide groove 52 to flexibly adjust the sliding displacement of the detection platform 10, so that the device as a whole can flexibly adjust its use height, and during use, the various power sockets 8 are arranged at equal intervals, and the outer sides of the power sockets 8 are provided with elastic limiting mechanisms 9 and positioning mechanisms 6, so that multiple groups of relays can be detected at the same time, and the relays can be stably located at the top of the power sockets 8, so that the device as a whole can have strong detection stability, and multiple groups of power sockets 8 arranged at equal intervals can also detect multiple groups of relays at the same time, which can improve the overall detection efficiency and convenience of use of the device; By setting the elastic limiting mechanism 9, during the use of the device, during the detection process, the relay can first be inserted downward into the inner side of the power socket 8, and during the insertion of the relay, the bottom of the relay contacts the inclined surface of the limiting frame 95, and the limiting frame 95 can be opened by moving the relay downward, and the outward movement of the limiting frame 95 can drive the connecting shaft 94 to tighten the torsion spring 92, and the torsion spring 92 is in a contracted and tight state. When the relay is fully inserted into the inside of the power socket 8, the torsion spring 92 is reset to drive the limiting frame 95 to perform preliminary limiting on the relay. After the relay is preliminarily positioned, other groups of relays can be inserted, making the overall operation of the device more convenient. In addition, since the upper end of the limiting frame 95 is arranged in an isosceles triangle, when the relay needs to be taken out, it only needs to be pulled upward. At this time, the upper end of the relay contacts the inclined surface, and the limiting frame 95 can be opened again by moving the relay upward to contact the inclined surface guide, so as to facilitate the quick removal of the relay. By setting the positioning mechanism 6, if the device needs to clamp the positioning relay more stably during use, the second motor 62 can be started to run, and the second motor 62 can drive the threaded rod 642 to rotate, and each threaded rod 642 is connected by a connecting shaft 643. At this time, the threaded rod 642 inside the movable groove 61 rotates. Since the threads at both ends of the threaded rod 642 rotate in opposite directions, the rotation of the threaded rod 642 can assist in driving the movable block 644 to slide relative to each other in the movable groove 61. The sliding of the movable block 644 can drive the support plate 631 to move, and the support plates 631 can move relative to each other. , which can assist in driving the clamping plate 632 to move and move. The displacement of the clamping plate 632 can cause the anti-skid pad 634 to contact the two ends of the relay. The elastic force provided by the telescopic spring 633 can cause the anti-skid pad 634 to have a certain extension space. The driving design of the movable block 644 and the threaded rod 642 can enable the device to stably clamp and position relays of different sizes. The elastic limiting mechanism 9 can more stably clamp and position the relay to avoid the relay accidentally falling off during the detection process. The automatic clamping design can improve the stability and convenience of the device during overall use.

Claims

1. A relay calibration device with a limit and fixing mechanism, characterized in that: The invention comprises a box body (1), the top of the box body (1) is provided with a box cover (3) which can be opened and closed, one side of the box cover (3) is hingedly connected to one side of the top of the box body (1) through a hinge (2), a touch-screen tablet computer (4) is embedded on the side of the box cover (3) close to the box body (1), a detection platform (10) is movably embedded in the box body (1), a lifting mechanism (5) is provided in the middle of the rear side of the box body (1), and the detection platform (10) and the lifting mechanism (5) are linked together, and the top of the detection platform (10) is fixedly installed with a plurality of A plurality of concave seats (7) are provided, and a positioning mechanism (6) is provided in the middle of the detection platform (10). The positioning mechanism (6) is located on both sides of each group of concave seats (7) and is provided with limiting members (63). Each group of concave seats (7) includes two concave seats (7) symmetrically arranged with respect to the positioning mechanism (6). An electrical socket (8) is provided on the inner side of each concave seat (7). Both sides of each electrical socket (8) are provided with elastic limiting mechanisms (9) opposite to each other. The positioning mechanism (6) and the lifting mechanism (5) are both electrically connected to the touch-control tablet computer (4).

2. A relay testing device with a limiting and fixing mechanism according to claim 1, characterized in that: A limiting plate (11) is provided on one side of the box cover (3) close to the hinge (2), and the limiting plate (11) is flush with the top of the box cover (3). When the box cover (3) is flipped to an angle of 90° with the opening of the box body (1), the limiting plate (11) and the box body (1) form a limiting fit.

3. A relay testing device with a limit and fixing mechanism according to claim 2, characterized in that: A fixing seat (12) is fixedly mounted in the middle of the top of the box cover (3), and a bridge-type handrail (13) is fixedly mounted on the top of the fixing seat (12).

4. A relay testing device with a limit and fixing mechanism according to claim 3, characterized in that: The lifting mechanism (5) comprises a mounting groove (51) and a slide groove (52), wherein the slide groove (52) is arranged in the middle of the rear side of the chassis, and the mounting groove (51) is arranged in the middle of the rear side of the bottom of the chassis, the mounting groove (51) and the slide groove (52) overlap in the vertical direction, a first motor (53) is fixedly connected to the inner side of the mounting groove (51), a vertically arranged reciprocating screw (54) is rotatably installed in the middle position of the inner side of the slide groove (52), an output shaft of the first motor (53) and the reciprocating screw (54) form a shaft-connected linkage, a slide plate (55) is slidably installed in the slide groove (52), one end of the slide plate (55) is fixedly matched with the detection table (10), the reciprocating screw (54) passes through the slide plate (55), and the slide plate (55) and the reciprocating screw (54) form a linkage.

5. A relay testing device with a limiting and fixing mechanism according to claim 4, characterized in that: The overall cross-sectional shape of the slide groove (52) is in the shape of a convex letter, and the overall cross-sectional shape of the slide plate (55) is also in the shape of a convex letter. The outer surface of the slide plate (55) and the inner wall of the slide groove (52) are both fixedly connected with wear-resistant gaskets.

6. A relay testing device with a limit and fixing mechanism according to claim 5, characterized in that: The elastic limiting mechanisms (9) all comprise an arc-shaped groove (91), the arc-shaped groove (91) being provided on both sides of the power socket (8), a torsion spring (92) being fixedly connected to one end of the inner side of the arc-shaped groove (91), a rotating disk (93) being fixedly mounted to the other end of the torsion spring (92), a connecting shaft (94) being fixedly connected to the outer side of the rotating disk (93), the connecting shaft (94) forming a resetting damping rotation fit with the arc-shaped groove (91) through the torsion spring (92), a limiting frame (95) being provided above the torsion spring (92), a bottom side of the limiting frame (95) being fixedly connected to the connecting shaft (94), and an upper end of the limiting frame (95) being arranged in the shape of an isosceles triangle.

7. A relay testing device with a limit and fixing mechanism according to claim 6, characterized in that: The positioning mechanism (6) comprises a movable groove (61) and a second motor (62); the movable groove (61) is disposed in the middle of the top of the detection platform (10); driving components (64) are fixedly connected at equal intervals inside the movable groove (61); the driving components (64) are connected to each other via a connecting shaft (643) to form a linkage fit; the second motor (62) is fixedly mounted in the middle of one side of the detection platform (10); the output shaft of the second motor (62) and the driving component (64) on one side form a linkage fit; and both sides of each driving component (64) are linkage-mounted with a limiting member (63).

8. A relay testing device with a limiting and fixing mechanism according to claim 7, characterized in that: The limiting member (63) comprises a concave frame (641), the concave frames (641) are fixedly installed at equal intervals on the inner side of the movable groove (61), the inner side of each concave frame (641) is rotatably connected to a threaded rod (642), the outer end of the threaded rod (642) closest to the second motor (62) and the output shaft of the second motor (62) form a shaft coupling linkage, a shaft coupling (643) is provided between the concave frames (641), and each threaded rod (642) forms a shaft coupling linkage through the shaft coupling (643), the threads at both ends of the threaded rod (642) are rotated in opposite directions, the two ends of the threaded rod (642) are respectively threadedly connected to a movable block (644), the top of the movable block (644) is provided with a corresponding limiting member (63), and the limiting members (63) of the movable block (644) on the same threaded rod (642) are arranged relative to each other.

9. A relay testing device with a limiting and fixing mechanism according to claim 8, characterized in that: The limiting member (63) comprises a support plate (631), the support plate (631) is fixedly mounted on the top of the movable block (644), a clamping plate (632) is fixedly mounted on the top of the support plate (631), a plurality of telescopic springs (633) are fixedly connected to the inner side of the clamping plate (632) at equal intervals, the other end of the telescopic spring (633) is fixedly mounted on the same anti-skid pad (634), the anti-skid pad (634) is parallel to the clamping plate (632), and the anti-skid pad (634) forms an elastic support with the clamping plate (632) through the telescopic spring (633), and a support shaft (635) is fixedly connected to the outer side of the anti-skid pad (634) at equal intervals, the support shaft (635) corresponds to the telescopic spring (633) one by one, and the support shaft (635) is coaxially and movably embedded in the telescopic spring (633), and the outer side of the support shaft (635) passes through the clamping plate (632).

10. A method for checking a relay with a limit and fixing mechanism, characterized in that: A method for simultaneously checking multiple relays using a relay checking device with a limit and fixing mechanism as described in any one of claims 1 to 9 comprises the following steps: Step 1: Preparation before calibration. First, you need to clean and arrange the calibration equipment, ensure that the environment is clean and there is enough space for operation, check whether the calibration equipment is complete and functions normally, and prepare the new relays to be calibrated to ensure that the quantity and batch information are accurate. Step 2: Confirm the environmental conditions. Carefully check the temperature, humidity and other parameters of the working environment to ensure that they are within the specified range. If the environmental conditions do not meet the standards, make adjustments. Step 3: Relay grouping and identification: a large number of relays to be inspected are carefully grouped according to model, specification, batch and other characteristics, so as to facilitate the subsequent targeted inspection operation. At the same time, each relay is clearly identified, which can be done by labeling or numbering, to ensure that the specific situation of each relay can be accurately identified and recorded during the entire inspection process; Step 4: Verification parameter setting: According to the technical specifications and verification requirements of the relay, various parameters are accurately set on the verification device through the touch panel computer (4), specifically, the working voltage, current threshold, action time, and clamping positioning range, etc., and the lifting mechanism (5) is controlled by the touch panel computer (4) to adjust the test platform (10) to a suitable height, and the positioning mechanism (6) is controlled to adjust to a suitable position; Step 5: Build the verification circuit. According to the characteristics of the verification device and relay, build the verification circuit reasonably, ensure that all connecting cables are firm and reliable, avoid looseness or poor contact during the test, and carefully check the layout and connection of the circuit to ensure that it meets safety regulations and verification requirements; Step 6: Appearance and initial inspection: Perform a comprehensive appearance inspection on each relay to check whether there is any damage to the shell, deformation of the pins, unclear markings, etc. Then, without power on, conduct a preliminary inspection of the relay pin conductivity, initial contact status, etc. to prepare for subsequent power-on testing; Step 7: Perform a preliminary test by energizing the relay. Insert the relay into the power socket (8) of the calibration device and energize the relay to observe its response in the initial energized state. The preliminary test can help to detect some obvious faults or abnormalities and handle them in time. Step 8: Detailed performance verification, start to verify the performance indicators of the relay, such as measuring the action time, using high-precision timing equipment to record the time from the relay receiving the signal to the contact action; Detect contact resistance, use professional resistance measuring instruments to measure the resistance value between contacts, and also verify the key performance parameters of the relay, such as the pull-in voltage, release voltage, insulation resistance, etc. Step 9: Data recording and organization. During the calibration process of each relay, record the test data and results in detail, including parameter settings, actual measurement values, whether it is qualified, etc., and organize these data into standardized tables or documents to facilitate subsequent analysis and tracing; Step 10: Result analysis and processing. According to the recorded data, conduct in-depth analysis and judgment on the verification results of each relay. For qualified relays, mark them and store them in the designated area. For unqualified relays, clearly record the reasons for their failure and take corresponding treatment measures, such as repair, replacement or scrapping. Finally, summarize and evaluate the results of the entire batch verification to provide reference and improvement direction for subsequent work.

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