Servo integrated wheel loading table and loading method thereof

Abstract

The invention discloses a servo integrated wheel loading table and a loading method thereof, and relates to the technical field of wheel body load testing, the loading table comprises an operation table, an integrated wheel mounting seat, a driving assembly, a loading assembly and a servo integrated wheel; the integrated wheel mounting seat is fixedly connected with the operation table, the servo integrated wheel is detachably mounted on the integrated wheel mounting seat, and the axis is parallel to the top surface of the operation table; the driving assembly comprises a driving wheel mounted on a driving wheel seat and a first servo motor, and the first servo motor drives the driving wheel to rotate; the loading assembly is installed on the side, away from the servo integrated wheel, of the driving assembly and used for driving the driving assembly to be close to or away from the servo integrated wheel so that the driving wheel can abut against or be separated from the periphery of the servo integrated wheel. According to the loading method of the servo integrated wheel, the load is directly applied to the contact interface of the driving wheel and the servo integrated wheel through the loading assembly, accurate transmission of the load is achieved, and the loading method has the advantages of being accurate in testing, convenient and fast to operate and high in adaptability.

Description

Technical Field

[0001] This invention relates to the field of wheel load testing technology, specifically to a servo integrated wheel loading test bench and its loading method. Background Technology

[0002] As a core walking component in high-end equipment such as industrial robots and automated logistics equipment, the load-bearing capacity and operational stability of servo integrated wheels directly affect the overall performance and service life of the machine. Therefore, before leaving the factory, servo integrated wheels must undergo rigorous load testing to ensure that the product quality meets usage requirements.

[0003] Traditional testing devices often use a method of indirectly transferring load by bearing a heavy object through the testing device. The load is transmitted from the axle to the wheel, resulting in uneven load distribution on the wheel, low testing accuracy, and an inability to realistically simulate the stress state of a servo-integrated wheel during actual operation. Some testing devices also have unreasonable structural designs for the drive and loading components. The power transmission path of the drive component may be at risk of deviation, and the load application direction of the loading component may not be consistent with the force direction on the wheel. This results in poor accuracy and stability of load application, and the lack of an effective buffering mechanism during loading can easily cause impact damage to the wheel.

[0004] For example, patent application CN114486294A discloses a drive wheel load testing device, which applies a circumferential load to the drive wheel from a vertical direction by setting pressure wheels on both sides of the drive wheel to improve the detection accuracy. However, this device adopts a vertical pressure structure, making the installation of the drive wheel complicated and requiring accurate alignment with the pressure wheels; moreover, the contact between the pressure wheels and the drive wheel is a double-sided clamping, which can easily lead to uneven force on the drive wheel.

[0005] To address the aforementioned issues, there is an urgent need to design a servo integrated wheel loading test device that features direct and uniform load transfer, accurate and stable testing, strong adaptability, and convenient operation, in order to meet the high-quality testing requirements of servo integrated wheels in industrial production. Summary of the Invention

[0006] To improve the accuracy and stability of load detection for servo integrated wheels and enhance the adaptability and ease of operation of the device, this invention provides a servo integrated wheel loading platform and its loading method.

[0007] To solve the above problems, the present invention adopts the following technical solution: The first objective of this invention is to provide a servo integrated wheel loading stage, comprising: an operating table, an integrated wheel mounting base, a drive assembly, a loading assembly, and a servo integrated wheel; The integrated wheel mounting base is fixedly disposed on the top surface of the operating table, and the servo integrated wheel is detachably connected to the integrated wheel mounting base. After the servo integrated wheel is installed, its axis is parallel to the top surface of the operating table. The drive assembly includes: a drive wheel seat, a drive wheel rotatably mounted on the drive wheel seat, and a first servo motor for driving the drive wheel to rotate. The axis of the drive wheel is parallel to and at the same height as the axis of the servo integrated wheel. The drive wheel seat is slidably connected to the operating table. The loading component is mounted on the top surface of the operating table and located on the side of the drive component away from the integrated wheel mounting base. The output end of the loading component is connected to the drive component and is used to drive the drive component to slide in a direction close to or away from the servo integrated wheel, so that the outer periphery of the drive wheel selectively abuts or separates from the outer periphery of the servo integrated wheel.

[0008] By adopting the above technical solution, after the servo integrated wheel is installed on the integrated wheel mounting base, the loading component drives the driving component to approach the servo integrated wheel, so that the driving wheel abuts against the outer periphery of the servo integrated wheel and applies a horizontal load. The first servo motor drives the driving wheel to rotate, thereby causing the servo integrated wheel to rotate synchronously. The load acts directly on the outer periphery contact interface between the two, and the loading direction is consistent with the force direction of the servo integrated wheel during actual operation. This achieves direct and uniform load transfer, solving the problem of low detection accuracy caused by uneven load transfer in traditional testing, and significantly improving the accuracy of servo integrated wheel load testing.

[0009] Optionally, a torque sensor is provided between the output shaft of the first servo motor and the shaft of the drive wheel. The input end of the torque sensor is fixedly connected to the output shaft of the first servo motor, and the output end is fixedly connected to the shaft of the drive wheel, which can detect the output torque of the drive wheel in real time.

[0010] By adopting the above technical solution, the torque sensor is directly connected in series in the power transmission path, which can accurately detect the output torque of the drive wheel in real time and transmit the torque signal to the control panel, providing accurate data support for evaluating the load-bearing capacity and operating performance of the servo integrated wheel.

[0011] Optionally, the drive wheel seat includes a first base plate, a first side plate and a second side plate vertically fixed to the top surface of the first base plate, and a rear upright plate vertically fixed to the top surface of the first base plate and away from the integrated wheel mounting seat. The drive wheel is rotatably connected between the first side plate and the second side plate, and a first spring positioning post is provided on the back of the rear upright plate.

[0012] By adopting the above technical solution, the first side plate and the second side plate provide stable rotational support for the drive wheel. The bearing setting reduces the rotational resistance of the drive wheel and ensures that the drive wheel rotates flexibly. The first base plate, the first side plate, the second side plate and the rear upright plate form a stable frame structure, which ensures the axis accuracy of the drive wheel after installation and avoids offset and shaking during power transmission.

[0013] Optionally, a drive motor mount is installed on the drive wheel mount along the axis of the drive wheel. The drive motor mount is fixedly installed on the first base plate. A base fixing plate is provided on the rear upright plate to snap and fix the drive motor mount to the rear upright plate. The first servo motor is installed on the drive motor mount. The output shaft of the first servo motor is coaxially aligned with the rotation shaft of the drive wheel, and the center lines of both are parallel to the top surface of the operating table.

[0014] By adopting the above technical solution, the first servo motor is coaxially connected to the drive wheel, ensuring that the power transmission is unbiased and further guaranteeing the uniformity of load transmission; the cooperation between the base mounting plate and the drive motor mount makes the installation of the first servo motor more stable and improves the overall structural stability of the drive assembly.

[0015] Optionally, the loading component includes: a second servo motor, a loading motor mount, a coupling, a loading seat, and a spring. The loading seat is fixedly connected to the operating table. The loading motor mount is connected to the side of the loading seat away from the drive component. The second servo motor is fixedly mounted on the loading motor mount. The loading seat is connected to the drive wheel mount through the spring. The spring is sleeved on the first spring positioning post. The second servo motor can drive the loading seat to move the spring towards or away from the drive component.

[0016] By adopting the above technical solution, the second servo motor drives the loading seat to move through the coupling, thereby moving the drive component closer to or away from the servo wheel, realizing the precise application and unloading of the load; the spring setting can effectively buffer the impact force during the loading process, avoid damage to the servo wheel and drive wheel caused by sudden load changes, and improve the stability and safety of the testing process.

[0017] Optionally, the loading seat includes: a second base plate, a front sealing plate, a rear sealing plate and a side sealing plate, a first sliding plate, a second sliding plate, a pressure sensor, a linear guide shaft and a lead screw pair; The second base plate is fixedly connected to the operating table. The front sealing plate and the rear sealing plate are respectively vertically fixed to both ends of the second base plate. The side sealing plates are symmetrically arranged on both sides of the second base plate to form a closed mounting cavity. The first and second sliding plates are adapted to slide between the front and rear sealing plates, and a second spring positioning post corresponding to the first spring positioning post is provided on the side of the first sliding plate near the drive assembly. The pressure sensor is clamped between the first slide plate and the second slide plate, and is in close contact with both of them; The two ends of the linear guide shaft are fixedly connected to the front sealing plate and the rear sealing plate, respectively. The first sliding plate and the second sliding plate are both sleeved on the linear guide shaft and slidably engaged with the linear guide shaft. The nut of the lead screw assembly is fixedly connected to the second slide plate, and the end of the lead screw passes through the rear sealing plate and is connected to the output shaft of the second servo motor through the coupling; The two ends of the spring are respectively sleeved on the first spring positioning post and the second spring positioning post.

[0018] By adopting the above technical solution, the second servo motor drives the lead screw pair to rotate, which in turn drives the second slide plate to slide along the linear guide shaft. The second slide plate pushes the first slide plate, spring and drive assembly to move in sequence through the pressure sensor, thereby applying the load. After the spring is compressed and subjected to force, it reacts on the first slide plate and transmits the pressure to the pressure sensor between the first and second slide plates. The pressure sensor can detect the loaded load in real time and feed it back to the control panel to realize closed-loop control of the loading process and ensure the accuracy of load application.

[0019] Optionally, there are two linear guide shafts, which are arranged in parallel and symmetrically on both sides of the lead screw pair. The first slide plate and the second slide plate are respectively provided with guide holes adapted to the linear guide shafts, and linear bearings that cooperate with the linear guide shafts are installed in the guide holes.

[0020] By adopting the above technical solution, the first and second slide plates are ensured to be parallel and move in a straight line, ensuring that the loading force is transmitted vertically to the drive component, so that the force detected by the pressure sensor is the force acting on the drive component, ensuring accurate force application; the cooperation between the linear guide shaft and the linear bearing reduces the friction of the slide plate and ensures the smoothness of the loading process.

[0021] Optionally, the servo integrated wheel loading platform also includes a control panel disposed on the operating table, the control panel being electrically connected to the first servo motor, the second servo motor, the torque sensor, and the pressure sensor respectively.

[0022] By adopting the above technical solution, operators can conveniently set test parameters through the control panel, monitor key data in real time during the test process, realize automated control of the test process, and improve operational convenience and test efficiency.

[0023] Optionally, the top surface of the operating table is symmetrically and fixedly provided with two guide bars extending along the sliding direction of the drive assembly, and the first base plate of the drive wheel seat is adapted to slide between the two symmetrically arranged guide bars, and the sliding direction is perpendicular to the axis of the drive wheel and the servo integrated wheel.

[0024] By adopting the above technical solution, the guide bar provides precise guidance for the sliding of the drive component, ensuring that the sliding direction of the drive component is perpendicular to the axis of the drive wheel and the servo wheel, thereby ensuring that the contact between the drive wheel and the servo wheel is a pure rolling contact, the load is evenly transmitted, and the test accuracy is further improved. The sliding connection between the drive component and the operating table can also adopt other connection methods such as guide rails and sliders.

[0025] Optionally, the integrated wheel mounting base can be detachably mounted with a fixing block, and the servo integrated wheel is provided with a mounting flange, the fixing block being adapted to the mounting flange for installation.

[0026] By adopting the above technical solution, the integrated wheel mounting base can be adapted to servo integrated wheels with different outer diameter specifications, which improves the versatility of the device and reduces the investment cost of testing equipment.

[0027] The second objective of this invention is to provide a loading method for a servo-integrated wheel loading stage, which employs the aforementioned servo-integrated wheel loading stage. The loading method includes the following steps: S1: Clamping and positioning Connect the servo integrated wheel to the fixing block of the integrated wheel mounting base via the mounting flange to ensure that the axis of the servo integrated wheel is parallel to the top surface of the operating table; S2: Initial alignment The second servo motor is started by controlling the control panel. The drive screw pair drives the second slide plate to move along the linear guide axis towards the drive assembly. The second slide plate pushes the pressure sensor and the first slide plate to move synchronously, so that the first slide plate pushes the drive wheel seat to slide along the guide bar through the spring until the outer circumference of the drive wheel initially contacts the outer circumference of the servo integrated wheel. S3: Pressure Loading S31: Continue to control the output feed of the second servo motor, apply preload force to the drive wheel seat through the spring, monitor the pressure value of the pressure sensor in real time, and when the pressure reaches the preset loading pressure threshold, the second servo motor stops feeding and maintains the current position to form a stable contact pressure; S32: Dynamic Loading and Detection The first servo motor is started to drive the drive wheel to rotate. The friction transmission between the drive wheel and the servo wheel drives the servo wheel to rotate. The torque sensor detects the output torque of the drive wheel in real time, and the pressure sensor monitors the changes in contact pressure synchronously. The control panel collects and stores the torque and pressure data in real time. S33: Loading Mode Switching Select either constant pressure loading mode or constant torque loading mode according to the test requirements: When the constant pressure loading mode is selected, the control panel adjusts the feed amount of the second servo motor according to the feedback value of the pressure sensor to maintain the spring preload constant; when the constant torque loading mode is selected, the control panel dynamically adjusts the output of the second servo motor according to the feedback value of the torque sensor to keep the output torque of the drive wheel constant by changing the contact pressure. S34: Loading complete After the first servo motor is turned off and the servo wheel stops rotating, the second servo motor is controlled to run in reverse via the control panel, causing the loading seat assembly to move away from the drive assembly. The spring then returns to its original position, the drive wheel separates from the servo wheel, and the loading process is completed.

[0028] Compared with the prior art, the beneficial effects of the present invention are: 1. By loading the drive wheel to directly contact the servo wheel in the horizontal direction, the load is directly applied to the outer peripheral contact interface between the two, and the loading direction is consistent with the force direction of the servo wheel when it is actually working. This achieves direct and uniform load transfer, solving the problems of uneven load transfer and low detection accuracy in traditional testing. 2. The horizontal layout makes it easier and faster to replace the servo wheels. Compared with existing technologies, its positioning is fixed and accurate, and no secondary positioning is required after the servo wheels are replaced. 3. The drive assembly adopts a modular structure design to ensure the axis accuracy and operational stability of the drive wheel after installation, effectively avoiding offset and shaking during power transmission; the first servo motor is coaxially connected to the drive wheel, and the torque sensor is directly connected in series in the power transmission path, which can accurately detect the output torque of the drive wheel and provide reliable data support for testing and evaluation; 4. The structure is compact and reasonable, and the automated control is achieved through the control panel. It is easy to operate, has high testing efficiency, and is suitable for batch factory testing scenarios in industrial production. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of the servo integrated wheel loading platform provided in this embodiment of the invention; Figure 2 This is a schematic diagram of the installation of the servo integrated wheel provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the driving component provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the drive wheel seat provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the loading component provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the loading seat provided in an embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of the guide strip provided in an embodiment of the present invention.

[0030] Explanation of reference numerals in the attached figures: 1-Control panel; 2-Integrated wheel mounting base; 21-Fixing block; 3-Drive assembly; 31-Drive wheel seat; 32-Drive wheel; 33-First servo motor; 34-Drive motor seat; 35-Torque sensor; 311-First base plate; 312-First side plate; 313-Second side plate; 314-Rear upright plate; 315-Base fixing plate; 316-First spring positioning column; 4-Loading assembly; 41-Second servo motor; 42-Loading motor mount; 43-Coupling; 44-Loading seat; 45-Spring; 441-Second base plate; 442-Front sealing plate; 443-Side sealing plate; 444-First sliding plate; 445-Pressure sensor; 446-Second sliding plate; 447-Linear guide shaft; 448-Screw pair; 4441-Second spring positioning pin; 5-Servo integrated wheel; 51-Mounting flange; 6-Guide strip; 7-Control Panel. Detailed Implementation

[0031] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. In the description of this invention, it should be noted that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components; and wireless or wired connections. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. In the description of this specification, references to terms such as "embodiment," "an embodiment," and "an implementation" indicate that the specific features, structures, materials, or characteristics described in connection with that embodiment or implementation are included in at least one embodiment or illustrative implementation of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or implementation. Moreover, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or implementations. Based on the embodiments of this invention, all other implementations obtained by those skilled in the art without inventive effort are within the scope of protection of this invention.

[0032] Reference Figure 1 and Figure 3 This invention provides a servo integrated wheel loading platform, including an operating table 1, an integrated wheel mounting base 2, a drive assembly 3, a loading assembly 4, and a servo integrated wheel 5. The integrated wheel mounting base 2 is fixedly disposed on the top surface of the operating table 1, and the servo integrated wheel 5 is detachably connected to the integrated wheel mounting base 2. After installation, the axis of the servo integrated wheel 5 is parallel to the top surface of the operating table 1. The drive assembly 3 includes: a drive wheel seat 31, a drive wheel 32 rotatably mounted on the drive wheel seat 31, and a first servo motor 33 for driving the drive wheel 32 to rotate. The axis of the drive wheel 32 is parallel to and at the same height as the axis of the servo integrated wheel 5, and the drive wheel seat 31 is slidably connected to the operating table 1. The loading assembly 4 is mounted on the top surface of the operating table 1 and is located on the side of the drive assembly 3 away from the integrated wheel mounting base 2. The output end of the loading assembly 4 is connected to the drive assembly 3 and is used to drive the drive assembly 3 to slide in a direction close to or away from the servo integrated wheel 5. The outer periphery of the drive wheel 32 selectively abuts or separates from the outer periphery of the servo integrated wheel 5.

[0033] Therefore, in this embodiment, the drive assembly 3 and the integrated wheel mounting base 2 are mounted on the same plane, and the axis of the drive wheel 32 is parallel to and at the same height as the axis of the servo integrated wheel 5. The drive assembly 3 can slide closer to or further away from the servo integrated wheel 5 through the loading assembly 4, so that the drive wheel 32 abuts against the outer periphery of the servo integrated wheel 5 and applies a horizontal load. The first servo motor 33 drives the drive wheel 32 to rotate, thus testing the servo integrated wheel 5. The loading platform is arranged horizontally, making the installation of the servo integrated wheel more convenient and faster.

[0034] It should be noted that multiple integrated wheel mounting bases 2, drive components and loading components can be set on the operating table 1, and can be added as needed according to the process requirements. There is no limit to the corresponding number here.

[0035] Reference Figure 3 In one embodiment of the present invention, a torque sensor 35 is provided between the first servo motor 33 and the drive wheel 32. The input end of the torque sensor 35 is fixedly connected to the output shaft of the first servo motor 33, and the output end is fixedly connected to the rotating shaft of the drive wheel 32. The torque sensor 35 can detect the output torque of the drive wheel 32 in real time.

[0036] Specifically, refer to Figure 4 In this embodiment, the drive wheel seat 31 includes a first base plate 311, a first side plate 312 and a second side plate 313 vertically fixed to the top surface of the first base plate 311, and a rear upright plate 314 vertically fixed to the top surface of the first base plate 311 and on the side away from the integrated wheel mounting seat 2. The drive wheel 32 is rotatably connected between the first side plate 312 and the second side plate 313. A first spring positioning post 316 is provided on the back of the rear upright plate 314.

[0037] Thus, the drive wheel 32 is installed by rolling connection between the first side plate 312 and the second side plate 313, providing stable support for the drive wheel 32. The entire drive wheel seat 31 is a frame structure, which more accurately transmits the load applied by the loading component 4 to the servo integrated wheel 5.

[0038] Specifically, refer to Figure 4 As shown, in this embodiment, a drive motor seat 34 is installed on the drive wheel seat 31 along the axis of the drive wheel 32. The drive motor seat 34 is fixedly installed on the first base plate 311. A base fixing plate 315 is provided on the rear upright plate 314 to snap and fix the drive motor seat 34 to the rear upright plate 314. The first servo motor 33 is installed on the drive motor seat 34. The output shaft of the first servo motor 33 is coaxially aligned with the rotation shaft of the drive wheel 32, and the center lines of the two axes are parallel to the top surface of the operating table 1.

[0039] Reference Figure 5 , Figure 6 As shown, in one embodiment of the present invention, the loading component 4 includes: a second servo motor 41, a loading motor base 42, a coupling 43, a loading seat 44, and a spring 45. The loading seat 44 is fixedly connected to the operating table 1. The loading motor base 42 is connected to the side of the loading seat 44 away from the driving component 3. The second servo motor 41 is fixedly installed on the loading motor base 42. The loading seat 44 is connected to the driving wheel base 31 through the spring 45. The spring 45 is sleeved on the first spring positioning post 316. The second servo motor 41 can drive the loading seat 44 to move the spring 45 towards or away from the driving component 3.

[0040] Specifically, refer to Figure 6 As shown, in one embodiment of the present invention, the loading seat 44 includes: a second base plate 441, a front sealing plate 442, a rear sealing plate 449 and a side sealing plate 443, a first sliding plate 444, a second sliding plate 446, a pressure sensor 445, a linear guide shaft 447 and a lead screw pair 448. The second base plate 441 is fixedly connected to the operating table 1. The front sealing plate 442 and the rear sealing plate 449 are respectively vertically fixed to both ends of the second base plate 441. The side sealing plates 443 are symmetrically arranged on both sides of the second base plate 441 to form a closed mounting cavity. Obviously, the mounting cavity formed can allow the first sliding plate 444 and the second sliding plate 446 to slide inside. The first sliding plate 444 and the second sliding plate 446 are adapted to slide between the front sealing plate 442 and the rear sealing plate 449. The first sliding plate 444 is provided with a second spring positioning post 4441 corresponding to the first spring positioning post 316 on the side of the first sliding plate 444 near the drive assembly 3. The pressure sensor 445 is clamped between the first slide plate 444 and the second slide plate 446, and is in close contact with both of them respectively; The two ends of the linear guide shaft 447 are fixedly connected to the front sealing plate 442 and the rear sealing plate 449 respectively. The first sliding plate 444 and the second sliding plate 446 are both sleeved on the linear guide shaft 447 and slide in cooperation with the linear guide shaft 447. The nut of the lead screw assembly 448 is fixedly connected to the second slide plate 446. After the lead screw end passes through the rear sealing plate 449, it is connected to the output shaft of the second servo motor 41 through the coupling 43. The two ends of the spring 45 are respectively sleeved on the first spring positioning post 316 and the second spring positioning post 4441.

[0041] Therefore, when the second servo motor 41 rotates and outputs, it transmits power to the lead screw pair 448 through the coupling 43. The lead screw pair 448 pushes the first slide plate and the second slide plate 446 to slide. When the drive wheel 32 contacts the servo integrated wheel 5, it is subjected to force. The reverse force is given to the spring 45 and then transmitted to the first slide plate 444, causing the first slide plate 444 and the second slide plate 446 to press the pressure sensor 445 located between them, thereby monitoring the load applied to the servo integrated wheel 5 by the loading component 4.

[0042] Specifically, refer to Figure 6 As shown, in one embodiment of the present invention, there are two linear guide shafts 447, which are arranged in parallel and symmetrically on both sides of the lead screw pair 448. The first slide plate 444 and the second slide plate 446 are respectively provided with guide holes adapted to the linear guide shafts 447, and linear bearings that cooperate with the linear guide shafts 447 are installed in the guide holes.

[0043] Therefore, two linear guide shafts 447 are set, and matching linear bearings are set on the first slide plate 444 and the second slide plate 446, so that the sliding of the first slide plate 444 and the second slide plate 446 is smoother, while reducing frictional resistance, so that the pressure value measured by the pressure sensor 445 is more accurate.

[0044] Reference Figure 1 As shown, in one embodiment of the present invention, the servo integrated wheel loading platform further includes a control panel 7 disposed on the operating table 1. The control panel 7 is electrically connected to the first servo motor 33, the second servo motor 41, the torque sensor 35 and the pressure sensor 445 respectively.

[0045] Therefore, the control panel 7 can be used to control the speed of the first servo motor 33, the start and stop of the second servo motor 41 and the loading stroke, adjust the loading load, and display the torque data detected by the torque sensor 35 and the pressure data detected by the pressure sensor 445 in real time, thereby improving the ease of operation and testing efficiency.

[0046] Specifically, refer to Figure 1 and Figure 7 As shown, in one embodiment of the present invention, two guide bars 6 extending along the sliding direction of the drive assembly 3 are symmetrically fixedly arranged on the top surface of the operating table 1. The first base plate 311 of the drive wheel seat 31 is adapted to slide between the two symmetrically arranged guide bars 6, and the sliding direction is perpendicular to the axis of the drive wheel 32 and the servo integrated wheel 5.

[0047] Specifically, refer to Figure 2 As shown, in one embodiment of the present invention, the integrated wheel mounting base 2 is detachably mounted with a fixing block 21, and the servo integrated wheel 5 is provided with a mounting flange 51, and the fixing block 21 is adapted to the mounting flange 51 for installation.

[0048] Therefore, when installing the servo integrated wheel 5, the mounting flange 51 on the servo integrated wheel 5 can be installed in correspondence with the fixing block 21. When switching to different models of servo integrated wheels 5, the corresponding fixing block 21 can be disassembled and replaced accordingly without disassembling the integrated wheel mounting base 2, thus realizing quick model changeover for servo integrated wheel testing.

[0049] This invention also provides a loading method for a servo-integrated wheel loading stage, the loading method comprising the following steps: S1: Clamping and positioning The servo integrated wheel 5 is adapted and connected to the fixing block 21 of the integrated wheel mounting base 2 via the mounting flange 51, ensuring that the axis of the servo integrated wheel 5 is parallel to the top surface of the operating table 1; S2: Initial alignment The second servo motor 41 is started by the control panel 7, and the drive screw pair 448 drives the second slide plate 446 to move along the linear guide shaft 447 towards the drive assembly 3. The second slide plate 446 pushes the pressure sensor 445 and the first slide plate 444 to move synchronously, so that the first slide plate 444 pushes the drive wheel seat 31 to slide along the guide bar 6 through the spring 45 until the outer circumference of the drive wheel 32 initially contacts the outer circumference of the servo integrated wheel 5. S3: Pressure Loading S31: Continue to control the second servo motor 41 to output the feed amount, apply preload force to the drive wheel seat 31 through the spring 45, monitor the pressure value of the pressure sensor 445 in real time, and when the pressure reaches the preset loading pressure threshold, the second servo motor 41 stops feeding and maintains the current position to form a stable contact pressure. S32: Dynamic Loading and Detection The first servo motor 33 is started to drive the drive wheel 32 to rotate. The friction transmission between the drive wheel 32 and the servo integrated wheel 5 drives the servo integrated wheel 5 to rotate. The torque sensor 35 detects the output torque of the drive wheel 32 in real time, and the pressure sensor 445 monitors the change in contact pressure in real time. The control panel 7 collects and stores the torque data and pressure data in real time. S33: Loading Mode Switching Select either constant pressure loading mode or constant torque loading mode according to the test requirements: When the constant pressure loading mode is selected, the control panel 7 adjusts the feed amount of the second servo motor 41 according to the feedback value of the pressure sensor 445 to maintain the preload of the spring 45 constant; when the constant torque loading mode is selected, the control panel 7 dynamically adjusts the output of the second servo motor 41 according to the feedback value of the torque sensor 35, and keeps the output torque of the drive wheel 32 constant by changing the contact pressure. S34: Loading complete After the first servo motor 33 is turned off and the servo integrated wheel 5 stops rotating, the second servo motor 41 is controlled to run in reverse through the control panel 7, which drives the loading seat 44 assembly to move away from the drive assembly 3. The spring 45 returns to its original position, and the drive wheel 32 separates from the servo integrated wheel 5, thus completing the loading process.

[0050] While the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of this disclosure, and all such changes and modifications will fall within the scope of protection of this invention.

Claims

1. A servo-integrated wheel loading stage, characterized in that, include: The control panel (1), the integrated wheel mounting base (2), the drive assembly (3), the loading assembly (4), and the servo integrated wheel (5); The integrated wheel mounting base (2) is fixedly set on the top surface of the operating table (1), and the servo integrated wheel (5) is detachably connected to the integrated wheel mounting base (2). After the servo integrated wheel (5) is installed, its axis is parallel to the top surface of the operating table (1). The drive assembly (3) includes: a drive wheel seat (31), a drive wheel (32) rotatably mounted on the drive wheel seat (31), and a first servo motor (33) for driving the drive wheel (32) to rotate. The axis of the drive wheel (32) is parallel to and at the same height as the axis of the servo integrated wheel (5). The drive wheel seat (31) is slidably connected to the operating table (1). The loading component (4) is installed on the top surface of the operating table (1) and located on the side of the drive component (3) away from the integrated wheel mounting base (2). The output end of the loading component (4) is connected to the drive component (3) and is used to drive the drive component (3) to slide in a direction close to or away from the servo integrated wheel (5), so that the outer periphery of the drive wheel (32) selectively abuts or separates from the outer periphery of the servo integrated wheel (5). A torque sensor (35) is provided between the first servo motor (33) and the drive wheel (32). The input end of the torque sensor (35) is fixedly connected to the output shaft of the first servo motor (33), and the output end is fixedly connected to the rotating shaft of the drive wheel (32). The torque sensor (35) can detect the output torque of the drive wheel (32) in real time.

2. The servo-integrated wheel loading stage according to claim 1, characterized in that: The drive wheel seat (31) includes a first base plate (311), a first side plate (312) and a second side plate (313) vertically fixed to the top surface of the first base plate (311), and a rear upright plate (314) vertically fixed to the top surface of the first base plate (311) and away from the integrated wheel mounting seat (2). The drive wheel (32) is rotatably connected between the first side plate (312) and the second side plate (313). A first spring positioning post (316) is provided on the back of the rear upright plate (314).

3. The servo integrated wheel loading stage according to claim 2, characterized in that: The drive wheel seat (31) is equipped with a drive motor seat (34) along the axis of the drive wheel (32). The drive motor seat (34) is fixedly installed on the first base plate (311). The rear upright plate (314) is provided with a base fixing plate (315) to snap and fix the drive motor seat (34) to the rear upright plate (314). The first servo motor (33) is installed on the drive motor seat (34). The output shaft of the first servo motor (33) is coaxially aligned with the rotation shaft of the drive wheel (32), and the center lines of the two are parallel to the top surface of the operating table (1).

4. The servo integrated wheel loading stage according to claim 2, characterized in that: The loading component (4) includes: a second servo motor (41), a loading motor base (42), a coupling (43), a loading seat (44), and a spring (45). The loading seat (44) is fixedly connected to the operating table (1). The loading motor base (42) is connected to the side of the loading seat (44) away from the drive component (3). The second servo motor (41) is fixedly installed on the loading motor base (42). The loading seat (44) is connected to the drive wheel base (31) through the spring (45). The spring (45) is sleeved on the first spring positioning post (316). The second servo motor (41) can drive the loading seat (44) to move the spring (45) towards or away from the drive component (3).

5. The servo integrated wheel loading stage according to claim 4, characterized in that: The loading seat (44) includes: a second base plate (441), a front sealing plate (442), a rear sealing plate (449) and a side sealing plate (443), a first sliding plate (444), a second sliding plate (446), a pressure sensor (445), a linear guide shaft (447) and a lead screw pair (448). The second base plate (441) is fixedly connected to the operating table (1), the front sealing plate (442) and the rear sealing plate (449) are respectively vertically fixed to both ends of the second base plate (441), and the side sealing plates (443) are symmetrically arranged on both sides of the second base plate (441) to form a closed mounting cavity; The first slide plate (444) and the second slide plate (446) are adapted to slide between the front sealing plate (442) and the rear sealing plate (449). The first slide plate (444) is provided with a second spring positioning post (4441) corresponding to the first spring positioning post (316) on the side near the drive assembly (3). The pressure sensor (445) is clamped between the first sliding plate (444) and the second sliding plate (446), and is in close contact with both of them respectively; The two ends of the linear guide shaft (447) are fixedly connected to the front sealing plate (442) and the rear sealing plate (449) respectively. The first sliding plate (444) and the second sliding plate (446) are both sleeved on the linear guide shaft (447) and slide in cooperation with the linear guide shaft (447). The nut of the lead screw pair (448) is fixedly connected to the second slide plate (446), and the end of the lead screw passes through the rear sealing plate (449) and is connected to the output shaft of the second servo motor (41) through the coupling (43); The two ends of the spring (45) are respectively sleeved on the first spring positioning post (316) and the second spring positioning post (4441).

6. The servo integrated wheel loading stage according to claim 5, characterized in that: There are two linear guide shafts (447), which are arranged in parallel and symmetrically on both sides of the lead screw pair (448). The first slide plate (444) and the second slide plate (446) are respectively provided with guide holes adapted to the linear guide shafts (447), and linear bearings that cooperate with the linear guide shafts (447) are installed in the guide holes.

7. The servo integrated wheel loading stage according to claim 6, characterized in that: It also includes a control panel (7) disposed on the operating table (1), the control panel (7) being electrically connected to the first servo motor (33), the second servo motor (41), the torque sensor (35) and the pressure sensor (445) respectively.

8. The servo integrated wheel loading stage according to claim 3, characterized in that: The top surface of the operating table (1) is symmetrically fixed with two guide bars (6) extending along the sliding direction of the drive assembly (3). The first base plate (311) of the drive wheel seat (31) is adapted to slide between the two symmetrically arranged guide bars (6), and the sliding direction is perpendicular to the axis of the drive wheel (32) and the servo integrated wheel (5).

9. The servo integrated wheel loading stage according to claim 1, characterized in that: The integrated wheel mounting base (2) is detachably mounted with a fixing block (21), and the servo integrated wheel (5) is provided with a mounting flange (51). The fixing block (21) is adapted to the mounting flange (51).

10. A loading method for a servo-integrated wheel loading stage, employing the servo-integrated wheel loading stage as described in any one of claims 1-9, characterized in that, The loading method includes the following steps: S1: Clamping and positioning The servo integrated wheel (5) is adapted and connected to the fixing block (21) of the integrated wheel mounting base (2) through the mounting flange (51) to ensure that the axis of the servo integrated wheel (5) is parallel to the top surface of the operating table (1); S2: Initial alignment The second servo motor (41) is started by the control panel (7), and the drive screw pair (448) drives the second slide plate (446) to move along the linear guide shaft (447) towards the drive assembly (3). The second slide plate (446) pushes the pressure sensor (445) and the first slide plate (444) to move synchronously, so that the first slide plate (444) pushes the drive wheel seat (31) to slide along the guide bar (6) through the spring (45) until the outer periphery of the drive wheel (32) initially contacts the outer periphery of the servo integrated wheel (5). S3: Pressure Loading S31: Continue to control the second servo motor (41) to output the feed amount, apply preload force to the drive wheel seat (31) through the spring (45), monitor the pressure value of the pressure sensor (445) in real time, and when the pressure reaches the preset loading pressure threshold, the second servo motor (41) stops feeding and maintains the current position to form a stable contact pressure; S32: Dynamic Loading and Detection The first servo motor (33) is started to drive the drive wheel (32) to rotate. The servo wheel (5) is driven to rotate through the friction transmission between the drive wheel (32) and the servo wheel (5). The torque sensor (35) detects the output torque of the drive wheel (32) in real time, and the pressure sensor (445) monitors the change in contact pressure in real time. The control panel (7) collects and stores the torque data and pressure data in real time. S33: Loading Mode Switching Select either constant pressure loading mode or constant torque loading mode according to the test requirements: When the constant pressure loading mode is selected, the control panel (7) adjusts the feed amount of the second servo motor (41) according to the feedback value of the pressure sensor (445) to maintain the preload of the spring (45) constant; when the constant torque loading mode is selected, the control panel (7) dynamically adjusts the output of the second servo motor (41) according to the feedback value of the torque sensor (35) to keep the output torque of the drive wheel (32) constant by changing the contact pressure; S34: Loading complete After the first servo motor (33) is turned off and the servo integrated wheel (5) stops rotating, the second servo motor (41) is controlled to run in reverse through the control panel (7), which drives the loading seat (44) assembly to move away from the drive assembly (3). The spring (45) is reset, the drive wheel (32) is separated from the servo integrated wheel (5), and the loading process is completed.

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