A switch life test apparatus

Abstract

The utility model provides a kind of switch life test equipment, including test bench, rotating stand, drive motor, test display module and control module.Test bench is equipped with multilayer annular commodity panel, each layer is equipped with multiple circumferential distribution fixed parts for installing test switch.Rotating stand is rotated by drive motor, and the press portion on it sequentially presses each switch contact pressure head.Test display module displays test parameter in real time, and control module coordinates equipment operation.The equipment can realize the automatic test of multiple switches simultaneously, improve test efficiency and consistency, reduce manual intervention, and is suitable for large quantities of switch life detection.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, and more specifically, to a switch life testing device. Background Technology

[0002] As global industrial technology accelerates its iteration towards intelligence and automation, automated production replacing traditional manual operations has become an irreversible trend. Automated production is a key support for driving industrial transformation and upgrading, improving production efficiency and product quality, and is widely used in core fields such as machinery manufacturing, automotive industry, and electronics. At the same time, the concept of smart living is gradually permeating all aspects of people's daily lives. From smart home control systems to smart office equipment, various products that rely on limit switches for precise control are emerging in large numbers. As a core component for converting mechanical motion into electrical signals, limit switches have applications covering multiple fields such as home appliances, industrial machinery, and security equipment, becoming an important foundation for ensuring stable equipment operation and user experience.

[0003] The lifespan of limit switches directly determines the reliability of downstream products, and the number of button presses is one of the core indicators for measuring the lifespan of limit switches. In actual production and application, if the number of button presses of a tested limit switch fails to meet the design standard or industry specification, it not only indicates a quality defect in that individual switch but may also reflect common problems in the production process, material selection, or assembly of the same batch of products. If this potential hazard is not detected in time, it will lead to a large number of substandard limit switches entering the market, causing frequent failures and shortened lifespans in downstream applications. This will not only increase the after-sales maintenance costs for enterprises but may also cause safety accidents, seriously affecting the safety of users' property and the reputation of the enterprise's brand.

[0004] Most mainstream limit switch testing equipment on the market today suffers from design flaws, with many employing a single-station testing structure. During testing, operators must manually place each limit switch to be tested at the testing station and remove it manually after testing. This entire process relies on manual intervention, incurring significant labor costs and resulting in low operational efficiency. This is particularly problematic when dealing with large-volume limit switch testing demands, making it difficult to keep pace with production and thus hindering improvements in testing efficiency and accuracy. Utility Model Content

[0005] The main technical problem addressed by this application is how to improve the efficiency and consistency of switch life testing. To overcome the shortcomings of the prior art, this application provides a switch life testing device.

[0006] This application provides a switch life testing device, comprising: A test bench is provided with multiple ring-shaped storage panels, which are arranged vertically at intervals. Each storage panel is provided with multiple fixing parts for fixing test switches, which are arranged circumferentially at intervals. A rotating frame is rotatably mounted on a test bench. The axis of rotation of the rotating frame is located at the center of the display panel. The rotating frame is provided with a pressing part facing the edge of the display panel. The pressing part is used to press the contact head of the test switch. The drive motor is installed inside the test bench, and its output shaft is connected to the rotating frame to drive the rotation of the rotating frame. The test display module is mounted on the test bench and electrically connected to the test switch. It is used to display test parameters and results. The control module, which is installed on the test bench, is used to control the operation of the drive motor and the test display module.

[0007] Compared with existing technologies, the switch life testing equipment disclosed in this application has the following advantages: Multiple vertically spaced display panels and multiple circumferential fixing parts enable simultaneous testing of multiple switches, solving the shortcomings of traditional single-station equipment that requires manual testing and reduces manpower, meeting the needs of large-scale testing, adapting to automated production rhythms, and improving testing efficiency. A drive motor rotates the rotating frame at a uniform speed, and the pressing part presses the switch along a fixed trajectory, avoiding the problem of uneven pressing force and frequency caused by manual operation, improving testing accuracy, ensuring uniform testing conditions for switches in the same batch, and guaranteeing test consistency. The test display module provides real-time feedback of parameters and results, and the control module coordinates equipment operation, eliminating the need for real-time manual monitoring, reducing operational complexity, facilitating timely detection of defective products, and achieving intelligent monitoring. The vertically spaced display panels expand the testing station within the limited bench space, reducing the equipment's footprint, adapting to the compact production layout of factories, and optimizing space utilization.

[0008] In one possible implementation, the rotating frame includes a rotating vertical shaft, turntables, and pressure rods. The rotating vertical shaft is connected to the output shaft of a drive motor. Multiple turntables are fixed vertically at intervals on the rotating vertical shaft. The turntables and the display panels are correspondingly positioned at the same height. Multiple pressure rods are fixed circumferentially at intervals on each turntable, and each pressure rod has a pressing part at its end furthest from the turntable. Compared to existing technologies, the turntables and display panels are height-to-height, and the pressing parts at the ends of the pressure rods can accurately align with the switch contacts on different levels of display panels, avoiding pressing failures due to height deviations and improving equipment operational stability. Multiple turntables are fixed to the same rotating vertical shaft; when the motor drives the vertical shaft to rotate, all turntables rotate synchronously, ensuring that pressure rods at different levels simultaneously press the corresponding switches, guaranteeing consistent testing progress across multiple workstations and further optimizing testing efficiency. The modular rotating frame structure allows for individual disassembly and replacement of damaged pressure rods or turntables, eliminating the need for overall maintenance and reducing equipment maintenance costs and downtime.

[0009] In one possible implementation, the pressing part is a roller, which is rotatably connected to the pressure rod. Compared with the prior art, the roller contacts the switch contact head by rotating, reducing physical wear on the switch contact head during pressing and avoiding test result deviations caused by friction. The rotation of the roller can reduce the contact resistance between the pressure rod and the switch, reduce the load on the drive motor, extend the motor's service life, and at the same time ensure the uniformity of the rotating frame's rotation speed, further improving the stability of the pressing action.

[0010] In one possible implementation, multiple pressure bars are arranged radially symmetrically on the turntable, and the pressure bars are evenly distributed on the turntable. Compared with the prior art, the radially symmetrical and evenly distributed pressure bars ensure that the force is balanced in all directions when the turntable rotates, avoiding shaking or jamming of the rotating frame due to local force concentration, ensuring that the pressing part presses accurately along the preset trajectory, and improving the stability and accuracy of the test action; the evenly distributed pressure bars can accurately match the evenly arranged fixing parts on the placement panel, maximizing the use of the turntable's circumference space, arranging more test stations on the same turntable, further increasing the number of switches in a single test, and strengthening the advantages of multi-station testing.

[0011] In one possible implementation, two adjacent pressure rods are fixedly connected by a connecting rod. Compared with the prior art, the connecting rod connects the upper and lower pressure rods into a whole, improving the structural stability of the rotating frame, avoiding deformation or displacement of the pressure rods due to rotation of the rotating frame or long-term use, ensuring that the height position of the pressing part remains unchanged, and guaranteeing consistent pressing accuracy in different test cycles.

[0012] In one possible implementation, two adjacent shelf panels are fixedly connected by a support column. Compared to existing technologies, the support column fixes adjacent shelf panels, ensuring a fixed vertical spacing and horizontal alignment of the panels. This prevents panel misalignment due to equipment vibration, ensuring that the pressing part on the rotating frame can accurately align with the switch contact head and preventing misalignment. The support column also distributes the weight of the shelf panels and switches, enhancing the overall structural strength of the test bench.

[0013] In one possible implementation, the fixing part includes a fixing hole on the shelf panel, and the test switch is fixed to the shelf panel by bolts. Compared with the prior art, bolt locking provides a stable clamping force, preventing the switch from shifting due to the pressure of the rotating frame or equipment vibration during testing, ensuring that the pressing part always acts on the switch contact head, and preventing test interruption or result deviation due to switch loosening. The bolts are easy to install and remove, allowing operators to quickly fix and remove the switch.

[0014] In one possible implementation, the test display module includes a counter, status indicator lights, and voltage and current indicators. Compared with existing technologies, the counter displays the number of switch presses in real time, intuitively reflecting the test progress and facilitating operators to determine whether the preset test lifespan has been reached; the voltage and current indicators monitor the electrical parameters when the switch is turned on and off in real time, enabling rapid identification of abnormal switch states and avoiding the limitations of judging lifespan solely by the number of presses; the status indicator lights provide intuitive feedback on the switch test status through different colors, allowing operators to quickly locate defective products without having to check each switch individually, reducing manual inspection time and improving post-test screening efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This is a partial structural diagram of this application; Figure 3 This is a structural diagram of the shelf panel; Figure 4 Schematic diagram of the rotating frame Figure 1 ; Figure 5 Schematic diagram of the rotating frame Figure 2 ; Figure 6 This is a schematic diagram of the test display module. Explanation of reference numerals in the attached figures: 1. Test stand; 2. Shelf panel; 21. Fixing hole; 3. Rotating frame; 31. Rotating shaft; 32. Turntable; 33. Pressure rod; 4. Drive motor; 5. Test display module; 51. Counter; 52. Status indicator light; 53. Voltage and current indicator; 6. Roller; 7. Connecting rod; 8. Support column; 10. Test switch. Detailed Implementation

[0016] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0017] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0018] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0019] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] See Figures 1 to 6 This application discloses a switch life testing device, including: a test bench 1, a rotating frame 3, a drive motor 4, a test display module 5, and a control module. The test switch 10 is a plunger-type roller limit switch.

[0021] The test bench 1, serving as the main support for the equipment, is typically constructed as a sturdy frame structure welded from profiles or steel plates. Its core component is a series of annular storage panels 2, preferably ring-shaped steel plates. These panels are vertically and parallelly fixed within the test bench 1 at regular intervals via a supporting structure, thus achieving a multi-layered spatial layout of the testing equipment and significantly increasing the number of switches that can be tested in a single operation. Each storage panel 2 has multiple fixing points evenly spaced along its circumference for mounting the switches to be tested.

[0022] The rotating frame 3 is the core component for performing the pressing action. The rotating frame 3 is rotatably mounted in the center of the test bench 1 via a bearing housing and other mechanisms, with its rotation axis precisely aligned with the center of all the annular display panels 2. The rotating frame 3 has a pressing part facing the outer edge of the display panel 2. When the rotating frame 3 rotates, this pressing part sequentially passes through and presses the contact head of each test switch 10 fixed to the display panel 2.

[0023] The drive motor 4 serves as the power source and is installed inside the test bench 1 to save overall floor space. The output shaft of the drive motor 4 is connected to the center of the rotating frame 3 via a coupling or reduction mechanism, thereby providing the rotating frame 3 with uniform or adjustable speed rotational motion.

[0024] The test display module 5 is mounted on an easily observable control panel on the test bench 1. It is connected to the electrical interface of each test switch 10 via wires, forming a circuit. Its main function is to monitor and display key parameters during the test process (such as the number of tests, voltage, and current) and the final on / off life results in real time.

[0025] The control module is a PLC or microcontroller control system integrated in the electrical control box. It is mounted on the test bench 1 and electrically connected to the drive motor 4 and the test display module 5. It is used to control the start, stop, and speed of the drive motor 4, and to receive and process the signals fed back from the test display module 5 to realize the control of the automated test process.

[0026] In this embodiment, the rotating frame 3 includes a rotating vertical shaft 31, a turntable 32, and a pressure rod 33.

[0027] The rotating shaft 31 is a vertical, rigid shaft, whose lower end is directly coaxially connected to the output shaft of the drive motor 4 via a coupling, thereby obtaining power. The turntable 32 comprises multiple disc-shaped components, which are spaced at fixed intervals along the length of the rotating shaft 31; the height of each turntable 32 corresponds one-to-one with the height of a shelf panel 2, ensuring that the pressing part can accurately align with the switch of that shelf. On each turntable 32, multiple radially extending pressure rods 33 are evenly bolted along its circumference; these pressure rods 33 extend from the center of the turntable 32 towards the edge, and their ends away from the end of the turntable 32 are provided with pressing parts for actually contacting the switch.

[0028] In this embodiment, the pressing part is a roller 6.

[0029] The roller 6 is rotatably connected to the end of the pressure rod 33 via a pin. This design changes the friction mode from sliding friction to rolling friction when the roller 6 contacts the switch contact head, effectively reducing wear and noise during the pressing process, resulting in smoother operation and more accurate test results.

[0030] In this embodiment, multiple pressure rods 33 (e.g., four) are arranged radially symmetrically on the same turntable 32, and the included angles between each pressure rod 33 are exactly the same (e.g., the four pressure rods 33 are spaced 90° apart). This uniformly distributed design ensures that the rotating frame 3 is subjected to balanced forces during rotation, operates smoothly without additional vibration, and ensures that the rotation applies uniform pressure to each switch.

[0031] In this embodiment, a vertical connecting rod 7 is additionally bolted between two adjacent pressure rods 33 belonging to different turntables 32. These connecting rods 7 connect the originally independent pressure rods 33 into a robust three-dimensional cage structure, effectively preventing the pressure rods 33 from deforming or vibrating due to stress during long-term high-speed operation, and further enhancing the structural rigidity and stability of the rotating frame 3.

[0032] In this embodiment, multiple vertical support columns 8 are used to connect and fix two adjacent annular display panels 2 at their edges. The two ends of the support columns 8 are fastened to the display panels 2 with bolts, thereby connecting all the display panels 2 into a rigid frame with strong integrity, ensuring the stability of each test station.

[0033] In this embodiment, the fixing part includes a fixing hole 21 formed on the shelf panel 2. When installing the test switch 10, align the mounting hole on the switch base with this fixing hole 21, and then use bolts and nuts to pass through the hole and tighten them to firmly clamp and fix the test switch 10 to the shelf panel 2. This method has a simple structure, strong applicability, and can quickly install and remove switches of different specifications.

[0034] In this embodiment, the test display module 5 includes a counter 51, a status indicator light 52, and a voltage and current indicator 53. The counter 51 displays and records in real time the total number of times the pressing part driven by the rotating frame 3 presses the switch, i.e., the cumulative number of times the current test has been performed. The status indicator light 52 typically uses LEDs to visually display the current on or off state of each switch circuit. The voltage and current indicator 53 is a digital instrument used to monitor and display in real time the applied operating voltage and the current flowing through the switch in the test circuit, ensuring that the test conditions meet the standards.

[0035] This embodiment of a switch life testing device uses a drive motor 4 as a power source. By driving the rotating frame 3 to rotate at a constant speed, the roller 6 repeatedly presses the contact head of the switch along a fixed trajectory, simulating the pressing action in actual use of the switch. The device utilizes a multi-station design to achieve batch testing, while the switch performance is monitored through an electrically connected test display module 5, and the control module ensures the automated operation of the device.

[0036] The beneficial effects of this application include: I. Improve testing efficiency: Through the design of the multi-layer ring-shaped storage panel 2 and the circumferential fixing part, multiple switches can be tested simultaneously, overcoming the limitations of traditional single-station equipment that tests one by one and relies on manual labor, greatly reducing labor costs and adapting to the needs of large-scale automated testing.

[0037] II. Ensuring test accuracy and consistency: The drive motor 4 drives the rotating frame 3 to rotate at a uniform speed, and the pressing part presses the switch contact head along a fixed trajectory, avoiding the problem of uneven force and frequency of manual operation, ensuring uniform test conditions, and improving the accuracy and comparability of test results.

[0038] III. Enhance structural stability and reliability: The design adopts modular rotating frame 3, connecting rod 7, reinforcing pressure rod 33, supporting column 8, and fixed placement panel 2 to improve the overall rigidity and operational stability of the equipment and prevent component displacement or deformation due to vibration or long-term use.

[0039] IV. Intelligent monitoring and convenient operation: The test display module 5 provides real-time feedback on the number of presses, electrical parameters and switch status. The control module achieves automated operation without manual supervision, which facilitates quick identification of unqualified products and improves post-test processing efficiency.

[0040] V. Optimized Space Layout and Convenient Maintenance: The vertical multi-layer structure expands the number of workstations within a limited space, reducing the equipment footprint; the modular design supports individual component replacement, reducing maintenance costs and downtime.

[0041] In the description of the embodiments of this application, it should be noted that the terms "inner" and "outer" and other terms indicating direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application.

[0042] In the description of this application, the references to terms such as "an embodiment," "some embodiments," "in this embodiment," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0043] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A switch life test apparatus, characterized by, include: A test bench is provided with multiple ring-shaped storage panels, which are arranged vertically at intervals. Each storage panel is provided with multiple fixing parts for fixing test switches, which are arranged circumferentially at intervals. A rotating frame is rotatably mounted on a test bench. The axis of rotation of the rotating frame is located at the center of the display panel. The rotating frame is provided with a pressing part facing the edge of the display panel. The pressing part is used to press the contact head of the test switch. The drive motor is installed inside the test bench, and its output shaft is connected to the rotating frame to drive the rotation of the rotating frame. The test display module is mounted on the test bench and electrically connected to the test switch. It is used to display test parameters and results. The control module, which is installed on the test bench, is used to control the operation of the drive motor and the test display module.

2. The switch life test apparatus of claim 1, wherein The rotating frame includes a rotating shaft, a turntable, and pressure rods. The rotating shaft is connected to the output shaft of a drive motor. Multiple turntables are fixed on the rotating shaft at vertical intervals. The turntables and the display panel are correspondingly set at the same height. Multiple pressure rods are fixed at circumferential intervals on each turntable. Each pressure rod has a pressing part at its end away from the turntable.

3. The switch life test apparatus of claim 2, wherein The pressing part is a roller, which is rotatably connected to the pressure rod.

4. The switch life test apparatus of claim 2, wherein The plurality of pressure bars are arranged radially symmetrically on the turntable, and the plurality of pressure bars are evenly distributed on the turntable.

5. The switch life testing equipment according to claim 2, characterized in that, The two adjacent pressure rods are fixedly connected by a connecting rod.

6. The switch life testing equipment according to claim 1, characterized in that, The two adjacent storage panels are fixedly connected by support columns.

7. The switch life testing equipment according to claim 1, characterized in that, The fixing part includes a fixing hole provided on the shelf panel, and the test switch is fixed on the shelf panel by bolts.

8. The switch life testing equipment according to claim 1, characterized in that, The test display module includes a counter, status indicator lights, and voltage and current indicators.

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