A performance test fixture and performance test system

Abstract

This application relates to a performance testing fixture and a performance testing system for performing performance testing on an electric push rod. The performance testing fixture includes a control unit and multiple test units arranged in parallel; each test unit includes a push rod fixing device and a tension measuring device; the push rod fixing device is used to fix the electric push rod, and the tension measuring device is used to connect to the electric push rod and measure its tension value; the control unit is used to electrically connect to the electric push rod and control its telescopic movement, and to electrically connect to the tension measuring device and perform performance testing on the electric push rod based on its tension value. In the embodiments of this application, by controlling the telescopic movement of the electric push rod and performing performance testing based on the tension value during the telescopic movement, automatic performance testing of the electric push rod in a dishwasher is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of electric linear actuator testing equipment, specifically a performance testing fixture and performance testing system. Background Technology

[0002] During dishwasher operation, it's crucial to ensure the door remains sealed to prevent water leakage, while also allowing for easy access for the user to remove dishes after the cycle. A motorized push rod achieves this by controlling the door's opening and closing. When the dishwasher starts, the push rod closes the door tightly; once the wash cycle is complete, the push rod slowly opens the door to ensure the user can safely remove the dishes.

[0003] To ensure that the electric push rod functions properly in the dishwasher, the electric push rod used must meet product quality standards. Therefore, there is a need for a device to perform performance testing on the electric push rod in the dishwasher. Utility Model Content

[0004] To address the aforementioned technical problems, this application provides a performance testing fixture and a performance testing system.

[0005] In a first aspect, embodiments of this application disclose a performance testing fixture for performing performance testing on an electric linear actuator, including a control unit and multiple test units arranged in parallel.

[0006] Each test unit includes a push rod fixing device and a tension measuring device; the push rod fixing device is used to fix the electric push rod, and the tension measuring device is used to connect the electric push rod and measure the tension value of the electric push rod;

[0007] The control unit is used to electrically connect to the electric linear actuator and control its telescopic movement, as well as to electrically connect to the tension measuring device and perform performance testing on the electric linear actuator based on its tension value.

[0008] In some possible embodiments,

[0009] Performance testing fixtures include a fixture frame;

[0010] Multiple test units arranged in parallel are fixed to the tooling frame.

[0011] In some possible embodiments,

[0012] The push rod fixing device includes a positioning structure and a fastening structure;

[0013] The positioning structure is fixed to the tooling frame; the fastening structure is connected to the positioning structure by a snap-fit.

[0014] A positioning hole is provided between the positioning structure and the fastening structure; the positioning hole is matched with the size of the electric push rod and is used to place the electric push rod.

[0015] In some possible embodiments,

[0016] The tensile force measuring device includes a fixed base and a tensile force sensor;

[0017] The fixed base is fixed to the tooling frame; the tension sensor is detachably connected to the fixed base.

[0018] The tension sensor is connected to the electric push rod rope.

[0019] In some possible embodiments,

[0020] Performance testing includes at least one of the following: number of runs test, runtime test, and run frequency test;

[0021] The number of runs in the run count test, the run length in the run duration test, and the run frequency in the run frequency test are all set based on the product specification standards.

[0022] In some possible embodiments,

[0023] The control unit includes a display area and a setting area;

[0024] The display area shows the tension value and the number of runs; the settings area is used to set the number of runs, runtime, frequency of runs, and preset tension value.

[0025] In some possible embodiments,

[0026] The test fixture includes a warning device;

[0027] The reminder device is electrically connected to the control unit;

[0028] The control unit is used to control the reminder device to issue a reminder signal when the tension value is less than the preset tension value.

[0029] In some possible embodiments,

[0030] The test unit includes an ammeter;

[0031] The ammeter is electrically connected to the electric linear actuator; the ammeter is used to display the current of the motor in the electric linear actuator.

[0032] In some possible embodiments,

[0033] The tooling frame includes casters;

[0034] The casters are installed at the bottom of the tooling frame.

[0035] Secondly, embodiments of this application disclose a performance testing system, including any of the performance testing fixtures described above.

[0036] The technical solution provided in this application has the following technical effects:

[0037] The performance testing fixture of this application embodiment is used to perform performance testing on an electric push rod. It includes a control unit and multiple test units arranged in parallel. Each test unit includes a push rod fixing device and a tension measuring device. The push rod fixing device is used to fix the electric push rod, and the tension measuring device is used to connect to the electric push rod and measure its tension value. The control unit is used to electrically connect to the electric push rod and control its telescopic movement, and to electrically connect to the tension measuring device and perform performance testing on the electric push rod based on its tension value. In this application embodiment, by controlling the telescopic movement of the electric push rod and performing performance testing based on the tension value during the telescopic movement, automatic performance testing of the electric push rod in a dishwasher is achieved. Attached Figure Description

[0038] To more clearly illustrate the technical solutions and advantages in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 This is a schematic diagram of a performance testing fixture provided in an embodiment of this application. Figure 1 ;

[0040] Figure 2 This is a schematic diagram of a performance testing fixture provided in an embodiment of this application. Figure 2 ;

[0041] Figure 3 This is a schematic diagram of a performance testing fixture provided in an embodiment of this application. Figure 3 ;

[0042] Figure 4 This is a schematic diagram of a performance testing fixture provided in an embodiment of this application. Figure 4 . Detailed Implementation

[0043] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0044] It should be noted that the term "an embodiment" or "embodiment" in the specification of the embodiments of this application refers to a specific feature, structure, or characteristic that can be included in at least one implementation of this application. It should be understood that in the specification, claims, and accompanying drawings of the embodiments of this application, the terms "upper," "lower," "top," "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," etc., are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, in the description of this embodiment, unless otherwise stated, "a plurality of" means two or more. Additionally, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion, for example, a process, method, system, or product that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or devices.

[0045] It should be understood that when a device or component is referred to as being "on," "adjacent to," or "connected to" other devices or components, it may be directly on, adjacent to, or connected to other devices or components, or there may be intervening devices or components. Conversely, when a device or component is referred to as being "directly on," "directly adjacent to," or "directly connected to" other devices or components, there are no intervening devices or components. It should be understood that although the terms first, second, third, etc., may be used to describe various components, areas, layers, and / or parts, these components, areas, layers, and / or parts should not be limited by these terms. These terms are only used to distinguish one component, area, layer, or part from another component, area, layer, or part. Therefore, without departing from the teachings of this application, the first component, area, layer, or part discussed below may be referred to as the second component, area, layer, or part. And the discussion of the second component, area, layer, or part does not imply that the first component, area, layer, or part necessarily exists in this application.

[0046] To make the objectives, technical solutions, and advantages disclosed in the embodiments of this application clearer, the embodiments of this application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the embodiments of this application and are not intended to limit the embodiments of this application.

[0047] This application provides a performance testing fixture. This performance testing fixture is used to perform performance testing on an electric linear actuator.

[0048] An electric linear actuator is an electrically driven device that converts the rotary motion of an electric motor into the linear reciprocating motion of a linear actuator. The main objective of performance testing is to evaluate the service life and reliability of the electric linear actuator under specific operating conditions. Test criteria typically include: the electric linear actuator can operate stably and meet preset performance indicators under specified time and conditions; at the same time, the electric linear actuator can withstand expected wear and fatigue without significant performance degradation or structural damage.

[0049] The electric push rod in the dishwasher is a newly developed component. The electric push rod connects to the dishwasher door, and by controlling the extension and retraction of the push rod, the dishwasher can automatically open and close. This design avoids the risk of children accidentally opening the dishwasher door and getting burned while it is running, and also facilitates the movement and use of the dishwasher. Currently, there is a lack of performance testing devices suitable for electric push rods in dishwashers on the market. Based on the analysis of usage scenarios, this application provides a performance testing device suitable for electric push rods in dishwashers.

[0050] Figure 1 This is a schematic diagram of a performance testing fixture provided in an embodiment of this application. Figure 1 ,like Figure 1 As shown, the performance testing fixture includes a control unit 1 and multiple test units 2 arranged in parallel. Figure 1 There are five test units 2 (the serial number indicates one of them). Each test unit 2 includes a push rod fixing device 21 and a tension measuring device 22. The push rod fixing device 21 is used to fix the electric push rod, and the tension measuring device 22 is used to connect to the electric push rod and measure the tension value of the electric push rod. The control unit 1 is used to electrically connect to the electric push rod and control the extension and retraction movement of the electric push rod, and to electrically connect to the tension measuring device 22 and perform performance testing on the electric push rod based on the tension value of the electric push rod.

[0051] In this embodiment, by controlling the electric push rod to extend and retract, and by performing a performance test based on the tension value of the electric push rod during the extension and retraction, the automatic performance test of the electric push rod in the dishwasher is achieved.

[0052] In this embodiment, the test operation can be controlled by the control unit 1. The tester can set the test conditions and start the test operation in the control unit 1. After the test operation is started, the control unit 1 will control the electric push rod to perform telescopic movement, and at the same time, the control unit 1 will receive and display the tensile force value measured by the tensile force measuring device 22 in real time.

[0053] In this embodiment, the control unit 1 and the tensile force measuring device 22 are connected via a data cable. The control unit 1 can charge the tensile force measuring device 22.

[0054] In this embodiment, each test unit 2 can perform performance testing on one electric linear actuator. Multiple test units 2 can simultaneously perform performance testing on multiple electric linear actuators, improving testing efficiency and saving testing time.

[0055] Figure 2 This is a schematic diagram of a performance testing fixture provided in an embodiment of this application. Figure 2 ,like Figure 2 As shown, the performance testing fixture includes a fixture frame 3. Multiple test units 2 arranged side by side are fixed to the top surface of the fixture frame 3. The fixture frame 3 is made of stainless steel or other metal materials.

[0056] like Figure 2 As shown, the fixture frame 3 includes casters 31. The casters 31 are installed at the bottom of the fixture frame 3. By installing the casters 31, the entire fixture frame 3 can be moved more easily, and the test unit 2 located on the fixture frame 3 can be moved to a different position. This allows the working position of the test unit 2 to be adjusted according to the testing requirements, making performance testing more convenient.

[0057] Figure 3 This is a schematic diagram of a performance testing fixture provided in an embodiment of this application. Figure 3 ,like Figure 3 As shown, the push rod fixing device 21 includes a positioning structure 211 and a fastening structure 212. The positioning structure 211 is fixed to the tooling frame 3. The fastening structure 212 is located above the positioning structure 211 and is snap-fitted to the positioning structure 211. A positioning hole 213 is provided between the positioning structure 211 and the fastening structure 212. The positioning hole 213 is used to place the electric push rod, and the size of the positioning hole 213 matches the size of the electric push rod.

[0058] Figure 4 This is a schematic diagram of a performance testing fixture provided in an embodiment of this application. Figure 4 ,like Figure 4As shown, the tension measuring device 22 includes a fixed base 221 and a tension sensor 222. The fixed base 221 is fixed to the tooling frame 3 by screws and washers. The tension sensor 222 is disposed on the fixed base 221 and is detachably connected to the fixed base 221. The tension sensor 222 is connected to the electric push rod by a rope.

[0059] Optionally, the tension sensor 222 is connected to the electric actuator via a rigid cable or other material.

[0060] In this embodiment, the performance test includes a number of runs test. The number of runs in the run-count test is set based on the product specification standard. In the run-count test, a specified number of runs is first set in the control unit 1. Then, the control unit 1 controls the electric actuator to perform telescopic movements, and records the tension value of each telescopic movement in real time until the electric actuator reaches the specified number of telescopic movements. If the electric actuator stops telescopic movement before completing the specified number of runs, it indicates that the electric actuator is a defective product. If the electric actuator completes the specified number of runs, the control unit 1 will further analyze the tension value of the electric actuator during telescopic movement and other data that may be obtained to further evaluate the performance of the electric actuator.

[0061] Optionally, multiple sets of test runs can be set, with different numbers of runs in each set, to improve the reliability of performance evaluation.

[0062] Optionally, the number of runs can range from 40,000 to 60,000. Optionally, the number of runs can range from 40,000. Optionally, the number of runs can range from 50,000. Optionally, the number of runs can range from 60,000.

[0063] In some possible embodiments, performance testing includes a runtime test. The runtime in the runtime test is set based on the product specification standard. In the runtime test, a specified runtime is first set in control unit 1, and then control unit 1 to control the electric actuator to perform telescopic movements, recording the tension value of each telescopic movement in real time until the specified runtime is reached. If the electric actuator stops telescopically before completing the specified runtime, it indicates that the electric actuator is a defective product. If the electric actuator completes the specified runtime, control unit 1 will further analyze the tension value of the electric actuator during telescopic movements and other data that may be obtained to evaluate the performance of the electric actuator.

[0064] Optionally, multiple sets of runtime tests can be set, with different runtimes in each set of test runs, to improve the reliability of performance evaluation.

[0065] In some possible embodiments, performance testing includes a frequency of operation test. The frequency of operation in the frequency of operation test is set based on the product specification standard. In the frequency of operation test, a specified frequency of operation is first set in control unit 1, and then control unit 1 to control the electric actuator to perform telescopic movement at the specified frequency of operation, and the tension value of each telescopic movement of the electric actuator is recorded in real time. By adjusting the frequency of operation and recording the telescopic movement of the electric actuator, the performance of the electric actuator can be evaluated.

[0066] In some possible embodiments, performance testing includes at least one of run count testing, runtime testing, and run frequency testing. The number of runs in the run count test, the runtime in the runtime test, and the run frequency in the run frequency test are all set based on product specification standards.

[0067] In some possible embodiments, the control unit 1 includes a display area and a setting area. The display area is used to display the pull force value and the number of runs. The setting area is used to set the number of runs, run duration, run frequency, and preset pull force value. The pull force value of a qualified electric push rod needs to be within a certain range. Excessive or insufficient extension / retraction speed of the electric push rod will affect its performance in practical applications. For example, when controlling the opening and closing of a dishwasher door with an electric push rod, using an electric push rod with a pull force value within the preset range can control the opening and closing speed of the door within a certain range, avoiding both slow opening speeds that waste user time and excessive opening force that could cause accidental injury to the user.

[0068] In some possible embodiments, the test fixture includes an alerting device. The alerting device is electrically connected to the control unit 1. The control unit 1 is used to control the alerting device to issue an alert signal when the tensile force is less than a preset tensile force value.

[0069] Optionally, the alert signal can take the form of a warning light or a voice notification.

[0070] In some possible embodiments, test unit 2 includes an ammeter. The ammeter is electrically connected to the electric actuator and is used to display the current of the motor in the electric actuator.

[0071] This application also provides a performance testing system. The performance testing system includes the performance testing fixture described above. This performance testing system can perform more comprehensive performance testing on electric linear actuators, improving the accuracy and precision of the performance test results.

[0072] It should be noted that the order of the embodiments described above is merely for descriptive purposes and does not represent the superiority or inferiority of the embodiments. Furthermore, specific embodiments have been described above. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps described in the claims can be performed in a different order than that shown in the embodiments and still achieve the desired result. Additionally, the processes depicted in the drawings do not necessarily require a specific or sequential order to achieve the desired result. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0073] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the device embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions of the method embodiments.

[0074] Those skilled in the art will understand that all or part of the steps of the above embodiments can be implemented by hardware or by a program instructing related hardware. The program can be stored in a computer-readable storage medium, such as a read-only memory, a disk, or an optical disk.

[0075] The above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A performance testing fixture, characterized in that, It is used for performance testing of electric linear actuators, including control units and multiple test units arranged in parallel; Each test unit includes a push rod fixing device and a tension measuring device; the push rod fixing device is used to fix the electric push rod, and the tension measuring device is used to connect the electric push rod and measure the tension value of the electric push rod; The control unit is used to electrically connect to the electric push rod via a data cable and control the electric push rod to perform telescopic movement, and to electrically connect to the tension measuring device via a data cable and perform performance testing on the electric push rod based on the tension value of the electric push rod; The performance testing fixture includes a fixture frame; The plurality of test units arranged in parallel are fixed on the tooling frame; The push rod fixing device includes a positioning structure and a fastening structure; The positioning structure is fixed to the tooling frame; the fastening structure is snap-fitted to the positioning structure. A positioning hole is provided between the positioning structure and the fastening structure; the positioning hole is matched in size with the electric push rod, and the positioning hole is used to place the electric push rod. The tensile force measuring device includes a fixed base and a tensile force sensor; The fixed base is fixed to the tooling frame; the tension sensor is detachably connected to the fixed base; The tension sensor is connected to the electric push rod rope.

2. The performance testing fixture according to claim 1, characterized in that, The control unit includes a display area and a setting area; The display area is used to display the tensile force value and the number of runs; the setting area is used to set the number of runs, running time, running frequency, and preset tensile force value.

3. The performance testing fixture according to claim 2, characterized in that, The testing fixture includes a reminder device; The reminder device is connected to the control unit via a data cable; The control unit is used to control the reminder device to issue a reminder signal when the tension value is less than the preset tension value.

4. The performance testing fixture according to claim 1, characterized in that, The test unit includes an ammeter; The ammeter is electrically connected to the electric actuator; the ammeter is used to display the current of the motor in the electric actuator.

5. The performance testing fixture according to claim 1, characterized in that, The tooling frame includes casters; The casters are mounted on the bottom of the tooling frame.

6. A performance testing system, characterized in that, Includes the performance testing fixture as described in any one of claims 1 to 5.

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