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CN-121762113-B - Relay movable part balance testing device based on voltage feedback

CN121762113BCN 121762113 BCN121762113 BCN 121762113BCN-121762113-B

Abstract

The invention relates to the technical field of testing devices, and particularly discloses a relay movable part balance testing device based on voltage feedback, which comprises a testing bench, a movable reed adjusting device, a static reed adjusting device, an acquisition assembly, a driving mechanism and a control mechanism, wherein the testing bench is connected with the movable reed adjusting device; the movable reed adjusting device and the static reed adjusting device are respectively used for adjusting the movable reed and the static reed of the relay; the balance testing device realizes balance test through voltage feedback, has high test precision and high response speed, can automatically complete balance state judgment, and effectively improves the test efficiency and reliability of the relay movable component.

Inventors

  • GAO KAIJIE
  • KANG JIAWEN

Assignees

  • 广东工业大学

Dates

Publication Date
20260508
Application Date
20260304

Claims (8)

  1. 1. The utility model provides a relay movable part balance test device based on voltage feedback which characterized in that includes: A test bench; a movable reed adjusting device; the movable reed adjusting device and the static reed adjusting device are respectively used for adjusting the movable reed and the static reed of the relay; The acquisition component is used for acquiring information of the movable component of the relay when the movable component of the relay is deviated in real time; The driving mechanism is used for driving the acquisition assembly to be connected with the relay wire pins; the control mechanism is at least used for judging whether the balance state of the relay movable part meets the standard according to the information acquired by the acquisition assembly; The compressing mechanism is arranged on the test bench and is used for compressing and fixing the relay to be tested, and The positioning mechanism is configured on the test bench and is used for positioning the relay to be tested; the movable reed adjusting device, the static reed adjusting device, the acquisition assembly and the driving mechanism are all arranged on the test bench; the working method of the relay movable part balance testing device based on voltage feedback comprises the following steps: 1) In the initial state, placing the target relay at a testing station, clamping and fixing the target relay by a control mechanism through a positioning mechanism, and compacting and fixing the relay by a compacting mechanism; 2) The acquisition component transmits the tested time sequence data of the contact actuation voltage, the armature displacement and the shell vibration to the control mechanism, and the control mechanism controls the movable reed adjusting device to adjust the movable reed according to the time sequence data, so that the relay actuation voltage parameter is increased or reduced, and controls the static reed adjusting device to adjust the positions of the static reed and the movable reed contact, thereby achieving the effect of adjusting the actuation voltage; 3) The control mechanism calculates the balance index of the pull-in voltage curve and compares the balance index with a preset threshold value for analysis; wherein the balance index is a symmetry index S and fluctuation energy E; 4) If the balance index exceeds the preset threshold range, the control mechanism is screwed in the Y degrees backwards or forwards by the corresponding adjusting shaft according to the contact position of the reed, so that the movable reed and the contact of the static reed are in good contact; 5) Repeating the steps 1) to 5) until the balance index is qualified, and entering a packaging procedure.
  2. 2. The relay movable component balance test device based on voltage feedback according to claim 1, wherein the test bench is provided with a supporting seat; the compressing mechanism and the positioning mechanism are arranged on the supporting seat; a test station is arranged on one side of the positioning mechanism; The movable reed adjusting device and the static reed adjusting device are respectively positioned at two sides of the test station.
  3. 3. The device for testing the balance of the relay movable component based on voltage feedback according to claim 2, wherein the pressing mechanism comprises a connecting seat, a pressing block, a servo motor and a driving belt; the connecting seat is provided with a rotating shaft which is rotationally connected with the connecting seat; the pressing block is fixedly arranged on the rotating shaft, and one end of the rotating shaft is fixedly provided with a driven wheel; the connecting seat and the servo motor are fixedly arranged on the supporting seat, a driving wheel is fixedly arranged on an output shaft of the servo motor, and the driving wheel and the driven wheel are driven by the driving belt.
  4. 4. A relay movable component balance testing device based on voltage feedback according to claim 3, wherein two positioning mechanisms are provided, and the testing station is located between the two positioning mechanisms.
  5. 5. The device for testing balance of a relay movable component based on voltage feedback according to claim 4, wherein the positioning mechanism comprises a second cylinder and a clamp; the second cylinder is fixedly arranged on the supporting seat, and the output end of the second cylinder is fixedly connected with the clamp.
  6. 6. The relay movable component balance test device based on voltage feedback according to claim 1, wherein a first connecting frame and a second connecting frame are arranged on the test bench; The movable reed adjusting device and the static reed adjusting device are respectively and fixedly connected with the first connecting frame and the second connecting frame.
  7. 7. The device for testing the balance of the relay movable component based on voltage feedback according to claim 1 or 6, wherein the movable reed adjusting device and the static reed adjusting device comprise a linear moving platform, an adjusting motor and an adjusting shaft; the adjusting motor is fixedly arranged on the linear moving platform, and the linear moving platform is used for driving the adjusting motor to linearly move; the adjusting shaft is fixedly arranged on an output shaft of the adjusting motor.
  8. 8. The relay movable component balance test device based on voltage feedback according to claim 5, wherein the acquisition assembly comprises a voltage acquisition module and a contact acquisition module; the voltage acquisition module is configured to be fixedly connected with a sliding block of the linear guide rail, and is in sliding connection with the support seat through the linear guide rail; The contact type acquisition module is positioned between the voltage acquisition module and the driving mechanism, and the voltage acquisition module and the driving mechanism are fixedly connected with the contact type acquisition module; The support seat is provided with a test perforation which is used for the voltage acquisition module to pass through so that the voltage acquisition module can be connected with the wire leg of the relay; the test perforation is positioned at the test station; The voltage acquisition module is used for acquiring contact voltage signals when the movable component is deviated in real time; The contact type acquisition module is used for monitoring change information of contact force of the contact and/or monitoring vibration amplitude of a relay movable component and/or monitoring offset of the relay movable component during operation.

Description

Relay movable part balance testing device based on voltage feedback Technical Field The invention relates to the technical field of testing devices, in particular to a relay movable part balance testing device based on voltage feedback. Background Relay tests are mostly focused on electrical properties such as on-off, time sequence, withstand voltage and the like, or final actuation voltage value detection, but lack direct test and optimization means for dynamic balance of movable components in the moving process. For a precision relay, a dynamic balance test and optimization scheme which is efficient and can feed back an adjustment state in real time is not available. The traditional static pull-in voltage test of the relay can not reflect the dynamic process. The static or dynamic balance of the relay directly influences the stability, the precision and the service life of the operation of the component, the actuating mechanism (armature, contact assembly and the like) of the relay is used as a precision mechanism component, the stress balance during the operation of the actuating mechanism is a core factor for determining the action reliability of the relay, and the dynamic unbalance of the relay can cause the problems of component operation clamping stagnation, contact bounce aggravation, uneven wear, increased noise, abnormal coil power consumption, shortened mechanical service life and the like, even causes the vibration exceeding standard of the whole equipment, and belongs to the performance of balance defects of structural components. Therefore, a device capable of detecting the balance state of the structural component is needed to meet the subdivision requirement of the balance test of the structural component of the precision relay. Disclosure of Invention The invention aims to provide a relay movable component balance testing device based on voltage feedback, which can quantitatively test the dynamic balance of a relay inner movable component. In order to achieve the above purpose, the invention adopts the following technical scheme: A relay movable part balance testing device based on voltage feedback comprises a testing bench, a movable reed adjusting device, a static reed adjusting device, an acquisition assembly, a driving mechanism and a control mechanism. The static spring plate adjusting device is arranged to be horizontally opposite to the movable spring plate adjusting device, and the movable spring plate adjusting device and the static spring plate adjusting device are respectively used for adjusting the movable spring plate and the static spring plate of the relay. The acquisition component is used for acquiring information of the movable component of the relay when the movable component of the relay is deviated in real time. The driving mechanism is used for driving the voltage acquisition assembly to be connected with the relay wire pins. The control mechanism is at least used for judging whether the balance state of the relay movable part meets the standard according to the information acquired by the acquisition assembly. The movable reed adjusting device, the static reed adjusting device, the acquisition assembly and the driving mechanism are all arranged on the test bench. The relay movable component balance testing device based on voltage feedback, provided by at least one embodiment of the present disclosure, further comprises a pressing mechanism configured on the testing bench, wherein the pressing mechanism is used for pressing and fixing the relay to be tested. The relay movable component balance testing device based on voltage feedback, provided by at least one embodiment of the present disclosure, further comprises a positioning mechanism configured on the testing bench, wherein the positioning mechanism is used for positioning the relay to be tested. In the relay movable component balance testing device based on voltage feedback provided by at least one embodiment of the present disclosure, the testing bench is provided with a supporting seat. The compressing mechanism and the positioning mechanism are both arranged on the supporting seat. One side of the positioning mechanism is provided with a test station. The movable reed adjusting device and the static reed adjusting device are respectively positioned at two sides of the test station. In the relay movable component balance testing device based on voltage feedback provided by at least one embodiment of the disclosure, the pressing mechanism comprises a connecting seat, a pressing block, a servo motor and a driving belt. The connecting seat is provided with a rotating shaft, and the rotating shaft is rotationally connected with the connecting seat. The pressing block is fixedly arranged on the rotating shaft, and one end of the rotating shaft is fixedly provided with a driven wheel. The connecting seat and the servo motor are fixedly arranged on the supporting seat, a driving wheel is fixedly arranged on an output s