Special device for measuring speed characteristic of combined switch

Abstract

The utility model provides a special device for measuring the speed characteristic of a combination switch, which relates to the technical field of automobile part testing equipment and comprises a casing, a display screen arranged on the side surface of the casing, a control module arranged inside the casing, a servo motor, a rotating speed sensor, a torque sensor and a positioning hole, and a closed-loop control algorithm integrated by the control module. The feedback actual rotating speed and the target rotating speed are compared in real time, the input current and voltage of the servo motor are dynamically adjusted, the reliable test result is ensured, meanwhile, the displacement and return speed of the deflector rod are monitored in real time through the rotating speed sensor, and the torque sensor synchronously collects the matching of the operating force and the return force; according to the test device, the dynamic response of the automatic return mechanism is comprehensively evaluated, the revocation action failure or exceeding phenomenon is accurately judged, in addition, a plurality of groups of magnetic positioning holes in the mounting plate are matched with an adjustable clamp to quickly adapt to combination switches of different models, efficient reloading is realized, and the test precision, reliability and universality are greatly improved.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive parts testing equipment, and in particular to a special device for measuring the speed characteristics of combination switches. Background Technology

[0002] According to Chinese Patent No. CN221726214U, a combination switch logic measurement device includes a circuit board, several terminals, several fuse boxes, several light-emitting diodes (LEDs), several power supplies, and several circuit connection lines. The terminals, fuse boxes, LEDs, power supplies, and circuit connection lines are arranged on the circuit board, with the same number of terminals, fuse boxes, LEDs, and power supplies. A fuse is installed inside each fuse box. The terminals are connected to the positive terminal of the power supply, the negative terminal of the power supply is connected to the first end of the fuse, and the second end of the fuse is connected to the LED. This invention can conveniently and quickly measure the logic characteristics of combination switches and detect the continuity of internal circuits, greatly improving the efficiency of combination switch maintenance and teaching, and has extremely high application value.

[0003] The aforementioned documents and existing technologies have the following technical problems: The combination switch is a core control component of the automotive steering system. Its automatic return mechanism must ensure that the cancellation action does not fail or exceed the limit when the steering wheel returns at high speed. The existing testing equipment has insufficient motor speed control accuracy and cannot stably simulate the precise working condition of 150 r / min, resulting in unreliable test results. At the same time, there is a lack of means to monitor the dynamic response of the automatic return mechanism in real time, making it impossible to accurately determine the cancellation action failure or exceed the limit. In addition, the installation adaptability is poor, making it difficult to meet the testing requirements of different models of combination switches. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a dedicated device for measuring the speed characteristics of combined switches.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a special device for measuring the speed characteristics of a combination switch, comprising a housing, a display screen on the side of the housing, a control module inside the housing, a servo motor inside the housing, a connecting rod at the output end of the servo motor, a lever on the surface of the connecting rod, a mounting plate on the top surface of the housing, a positioning hole on the surface of the mounting plate, and a speed sensor on the surface of the mounting plate.

[0006] Preferably, an alarm is installed inside the housing, and the alarm is electrically connected to the control module.

[0007] Preferably, the output end of the servo motor is provided with a universal joint, and the connecting rod is connected to the output end of the servo motor through the universal joint.

[0008] Preferably, the surface of the lever is provided with a torque sensor, and the torque sensor is electrically connected to the control module.

[0009] Preferably, the bottom surface of the housing is provided with a support leg, and the surface of the support leg is provided with a nut.

[0010] Preferably, the positioning holes are equidistantly arranged on the surface of the mounting plate, and the speed sensor is electrically connected to the control module.

[0011] Preferably, the housing and mounting plate are made of stainless steel.

[0012] Preferably, the display screen is electrically connected to the control module, and the servo motor is electrically connected to the control module.

[0013] Beneficial effects

[0014] This invention employs a servo motor, a speed sensor, a torque sensor, and positioning holes. Through a control module integrating a closed-loop control algorithm, it dynamically adjusts the input current and voltage of the servo motor by comparing the actual speed with the target speed in real time. This quickly corrects speed deviations caused by mechanical friction or external interference, ensuring the error is controlled within ±1 r / min and guaranteeing reliable test results. Simultaneously, the speed sensor monitors the displacement and return speed of the lever in real time, while the torque sensor synchronously collects the matching of the operating force and return force, comprehensively evaluating the dynamic response of the automatic return mechanism and accurately identifying malfunctions or overshooting of the cancellation action. Furthermore, multiple sets of magnetic positioning holes on the mounting plate, combined with adjustable clamps, allow for quick adaptation to different models of combination switches through magnetic adsorption and flexible clamping, achieving efficient replacement and significantly improving test accuracy, reliability, and versatility. Attached Figure Description

[0015] Figure 1 This is an axonometric view of the present invention;

[0016] Figure 2 This is a perspective view of the present utility model;

[0017] Figure 3 This utility model Figure 2 Enlarged view of A in the middle;

[0018] Figure 4 This is a rear view of the present invention.

[0019] Legend:

[0020] 1. Housing; 2. Display screen; 3. Control module; 4. Servo motor; 5. Linkage rod; 6. Toggle lever; 7. Speed ​​sensor; 8. Torque sensor; 9. Mounting plate; 10. Positioning hole; 11. Support leg; 12. Nut; 13. Alarm. Detailed Implementation

[0021] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation plan without creative effort are all within the protection scope of this utility model.

[0022] The specific embodiments of this utility model are described below with reference to the accompanying drawings. Specific Implementation Example 1:

[0024] Reference Figure 1-4A specialized device for measuring the speed characteristics of a combination switch includes a housing 1. A support leg 11 is located on the bottom surface of the housing 1, and a nut 12 is located on the surface of the support leg 11. The housing 1 and the support leg 11 together provide stable mechanical support, ensuring the stability of the test bench during high-speed operation. The top surface of the support leg 11 has threads, which are used to install the support leg 11 with the cooperation of the nut 12. A display screen 2 is located on the side of the housing 1. The display screen 2 is electrically connected to a control module 3. The display screen 2 serves as the human-machine interface of the device, intuitively displaying test parameters, dynamic curves, and abnormal alarms, and supports data storage and report generation. The operator inputs test parameters through the display screen 2, including the target speed (150 r / min), the number of tests, and the stroke of the lever 6. The parameters are transmitted to the control module 3 for execution. The display screen 2 intuitively displays dynamic data during the test, including the displacement of the lever 6, the return speed, and the operating force, usually displayed digitally for easy monitoring by the operator. When the control module 3 detects an abnormal return action, the display screen 2 displays... Abnormal locations and alarm information prompt the operator to take measures, and the display screen 2 generates a test report that conforms to industry standards for convenient subsequent analysis and quality control. The control module 3 is located inside the housing 1, and the alarm 13 is located inside the housing 1. The alarm 13 is electrically connected to the control module 3. The control module 3 is the core control unit of the device, responsible for processing sensor data, executing closed-loop control, and judging whether the return action is abnormal. The control module 3 receives real-time data from the speed sensor 7 and the torque sensor 8 in real time for processing and analysis. Through the built-in high-performance closed-loop control algorithm, it compares the actual speed of the servo motor 4 with the target speed, i.e., 150 r / min, and dynamically adjusts the current and voltage of the servo motor 4 to keep the speed error within ±1 r / min. In particular, by analyzing the sensor data, it judges whether the automatic return mechanism of the combination switch has failed to cancel the action or exceeded the limit, and transmits the result to the display screen 2. When an abnormality is detected, the control module 3 activates the alarm 13 and emits an audible and visual alarm to remind the operator.

[0025] The housing 1 houses a servo motor 4, which is electrically connected to the control module 3. A connecting rod 5 is located at the output end of the servo motor 4, and a universal joint is also located at the output end of the servo motor 4. The connecting rod 5 is connected to the output end of the servo motor 4 via the universal joint. The servo motor 4 is the power source of the device, driving the lever 6 to simulate the steering wheel return motion. Through its built-in high-precision encoder and the closed-loop control algorithm of the control module 3, it accurately outputs a speed of 150 r / min with minimal error. By rapidly adjusting the torque to cope with changes in the resistance of the lever 6, it ensures stable speed. Simultaneously, through the output shaft and... The universal joint connects to the drive linkage 5, converting the rotational motion into the reciprocating or oscillating motion of the lever 6, simulating the steering wheel return. The lever 6 is mounted on the surface of linkage 5, simulating the steering wheel's movement. Driven by linkage 5, the lever 6 pushes or pulls the toggle lever of the combination switch fixed to the mounting plate 9, triggering its automatic return mechanism. This simulates a steering wheel return at 150 r / min, testing the performance of the return mechanism. A torque sensor 8 is mounted on the surface of lever 6 and is electrically connected to the control module 3, collecting real-time data on the force applied by lever 6. The operating force and return force generated by the combination switch's return mechanism are analyzed by the control module 3 to determine the matching of the operating force and return force, and to judge whether the return mechanism is smooth and whether the force is appropriate. The top surface of the housing 1 is provided with a mounting plate 9, and positioning holes 10 are opened on the surface of the mounting plate 9. The positioning holes 10 are equidistantly arranged on the surface of the mounting plate 9. The magnetic positioning holes 10 of the mounting plate 9 ensure rapid adaptation of different switch models. The mounting plate 9 is a fixed platform for the combination switch, supporting the installation of different switch models. The positioning holes 10 are magnetic holes on the mounting plate 9 used for rapid positioning of the clamps. The positioning hole 10 has an embedded magnet, which can quickly fix the clamp by magnetically attracting the magnetic pin or base of the clamp. The multiple positioning holes 10 are evenly distributed to form a grid array, providing multiple positioning points and allowing the clamp to flexibly adjust its position to adapt to different models of combination switches. The surface of the mounting plate 9 is equipped with a speed sensor 7, which is electrically connected to the control module 3. The speed sensor 7 collects the displacement and return speed of the lever 6 in real time, and the data is used by the control module 3 to analyze whether the response time and speed of the return mechanism meet the 150r / min working condition requirements.

[0026] The operation of the device is as follows: The operator first inputs the test parameters through the display screen 2, including the target speed of 150 r / min, the number of tests, and the travel of the lever 6. The combination switch to be tested is then fixed on the mounting plate 9. Different models of switches are quickly adapted using the magnetic positioning hole 10 and the adjustable clamp. After the test is started, the control module 3 receives the parameters and controls the servo motor 4. The servo motor 4 drives the connecting rod 5 through the universal joint, which drives the lever 6 to simulate the steering wheel return action at a speed of 150 r / min. The lever 6 pushes or pulls the lever of the combination switch, triggering its automatic... The return mechanism, along with the speed sensor 7, monitors the displacement and return speed of the lever 6 in real time, while the torque sensor 8 collects operating force and return force data. The control module 3 dynamically adjusts the speed of the servo motor 4 through a closed-loop control algorithm to keep the error within ±1 r / min, and analyzes the sensor data to determine whether the return action has failed or exceeded the limit. If an abnormality is detected, the control module 3 triggers the alarm 13 to issue an audible and visual alarm, and the display screen 2 simultaneously displays the abnormal point and dynamic curve. After the test is completed, the data is automatically stored and a report conforming to industry standards is generated.

[0027] In summary:

[0028] 1. Employing a servo motor 4, speed sensor 7, torque sensor 8, and positioning holes 10, and integrating a closed-loop control algorithm through the control module 3, the system dynamically adjusts the input current and voltage of the servo motor 4 by comparing the actual speed with the target speed in real time. This quickly corrects speed deviations caused by mechanical friction or external interference, ensuring the error is controlled within ±1 r / min and guaranteeing reliable test results. Simultaneously, the speed sensor 7 monitors the displacement and return speed of the lever 6 in real time, while the torque sensor 8 synchronously collects the matching of the operating force and return force, comprehensively evaluating the dynamic response of the automatic return mechanism and accurately determining whether the cancellation action malfunctions or exceeds the limit. Furthermore, multiple sets of magnetic positioning holes 10 on the mounting plate 9, combined with adjustable clamps, allow for quick adaptation to different models of combination switches through magnetic adsorption and flexible clamping, achieving efficient replacement and significantly improving test accuracy, reliability, and versatility.

[0029] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A dedicated device for measuring the speed characteristics of a combination switch, comprising a housing (1), characterized in that: The side of the housing (1) is provided with a display screen (2). The inside of the housing (1) is provided with a control module (3). The inside of the housing (1) is provided with a servo motor (4). The output end of the servo motor (4) is provided with a connecting rod (5). The output end of the servo motor (4) is provided with a universal joint. The connecting rod (5) is connected to the output end of the servo motor (4) through the universal joint. The surface of the connecting rod (5) is provided with a lever (6). The top surface of the housing (1) is provided with a mounting plate (9). The surface of the mounting plate (9) is provided with a positioning hole (10). The surface of the mounting plate (9) is provided with a speed sensor (7). The speed sensor (7) is electrically connected to the control module (3).

2. The special device for measuring the speed characteristics of a combination switch according to claim 1, characterized in that: An alarm (13) is installed inside the housing (1), and the alarm (13) is electrically connected to the control module (3).

3. The special device for measuring the speed characteristics of a combination switch according to claim 1, characterized in that: The positioning holes (10) are equidistantly distributed, forming a grid-like array.

4. The special device for measuring the speed characteristics of a combination switch according to claim 1, characterized in that: The surface of the lever (6) is provided with a torque sensor (8), and the torque sensor (8) is electrically connected to the control module (3).

5. A special device for measuring the speed characteristics of a combination switch according to claim 1, characterized in that: The bottom surface of the housing (1) is provided with a support leg (11), and the surface of the support leg (11) is provided with a nut (12).

6. A special device for measuring the speed characteristics of a combination switch according to claim 1, characterized in that: The housing (1) and mounting plate (9) are made of stainless steel.

7. A special device for measuring the speed characteristics of a combination switch according to claim 1, characterized in that: The display screen (2) is electrically connected to the control module (3).

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