A comprehensive detection device and method for a planetary screw

Abstract

The present application relates to the technical field of planetary screw performance test, in particular to a kind of comprehensive detection equipment and detection method of planetary screw, comprehensive detection equipment includes host computer, and is set on the rotary mechanism, pressure mechanism, first sliding mechanism and second sliding mechanism of host computer;Rotary mechanism can clamp or release clamp workpiece, and drive workpiece to rotate with axis as center;First sliding mechanism and second sliding mechanism are all with host computer sliding connection, first sliding mechanism and second sliding mechanism are elastically connected;And first sliding mechanism is slidably connected with pressure mechanism, second sliding mechanism is detachably connected with workpiece;When rotary mechanism drives workpiece to rotate, workpiece can push second sliding mechanism to slide relative to first sliding mechanism along the axial direction of workpiece.The fatigue strength, torque and operating accuracy of the planetary screw can be measured by the comprehensive detection equipment, and the integration is high;And it can simulate the working environment of planetary screw by applying a load, and the reliability of the detection result is high.

Description

Technical Field

[0001] This invention relates to the field of planetary screw performance testing technology, specifically to a comprehensive testing device and method for planetary screws. Background Technology

[0002] A planetary screw is a transmission component that converts rotary motion into linear motion. Common planetary screws include planetary roller screws and planetary ball screws. Taking a planetary roller screw as an example, a planetary screw includes a screw shaft, a nut, and multiple planetary rollers. The planetary rollers are integrated into the nut, and their two free ends mesh with the nut for transmission. The shaft of the planetary rollers is threaded to the screw shaft to achieve relative movement between the nut and the screw shaft. Planetary screws have advantages such as high operating speed, strong load-bearing capacity, good environmental adaptability, and long service life, and have broad application prospects.

[0003] Planetary screws require multiple performance tests, including fatigue strength verification, torque testing, and operational accuracy testing. These tests can be performed separately using methods such as the lifting fatigue test, the balancing force method, and measuring the screw shaft displacement, all on individual devices. Therefore, existing testing equipment has low integration and often can only perform one or two planetary screw performance tests. Furthermore, the measurements do not simulate the operating conditions of the planetary screw, resulting in significant measurement errors. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a comprehensive testing device and method for planetary screws, which solves the technical problem that the existing testing devices for planetary screws do not simulate the operating conditions of planetary screws, resulting in large measurement errors.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the planetary screw comprehensive testing equipment of the present invention includes a main unit, and a rotary mechanism, a pressure applying mechanism, a first sliding mechanism and a second sliding mechanism disposed on the main unit;

[0008] The rotary mechanism can clamp or release the workpiece and drive the workpiece to rotate around the axis.

[0009] Both the first sliding mechanism and the second sliding mechanism are slidably connected to the main unit, and the first sliding mechanism and the second sliding mechanism are elastically connected; furthermore, the first sliding mechanism is slidably connected to the pressure applying mechanism, and the second sliding mechanism is detachably connected to the workpiece;

[0010] When the rotary mechanism drives the workpiece to rotate, the workpiece can push the second sliding mechanism to slide relative to the first sliding mechanism along the axial direction of the workpiece.

[0011] Optionally, the first sliding mechanism includes a first slider, a connecting member, and an elastic member;

[0012] The first slider is slidably connected to the pressure application mechanism and the main unit;

[0013] One end of the connector is connected to the first slider, and the other end is connected to the second sliding mechanism;

[0014] The elastic element is provided on the connector.

[0015] Optionally, the first sliding mechanism further includes a pressure sensor or a tension sensor;

[0016] One end of the pressure sensor or the tension sensor is connected to the first slider, and the other end is connected to the second sliding mechanism.

[0017] Optionally, the second sliding mechanism includes a second slider, a connector, and a displacement sensor;

[0018] The second slider is slidably connected to the host computer;

[0019] One end of the connector is connected to the second slider, and the other end is detachably connected to the workpiece;

[0020] The displacement sensor is mounted on the host computer and is capable of detecting the movement stroke of the second slider.

[0021] Optionally, a T-shaped block is rotatably connected inside the connector, and the end of the T-shaped block facing the workpiece is provided with an external thread, and the T-shaped block is threadedly connected to the workpiece.

[0022] Optionally, the rotary mechanism includes a rotary drive, a chuck, and a torque sensor;

[0023] The torque sensor is installed on the shaft of the rotary drive;

[0024] The chuck is mounted on the host computer and is capable of clamping the workpiece;

[0025] One end of the workpiece is connected to the rotating shaft of the rotary drive, and the other end is connected to the second sliding mechanism.

[0026] Optionally, the pressure applying mechanism includes a pressure driver, a main spindle screw, a slider, and a grating ruler;

[0027] One end of the main spindle screw is coaxially connected to the rotating shaft of the pressure driver, and the other end is rotatably connected to the main unit;

[0028] The main spindle slider is threadedly connected to the main spindle lead screw; the main spindle slider is connected to the first sliding mechanism;

[0029] The grating ruler is mounted on the host computer and is capable of detecting the movement stroke of the first slider.

[0030] Optionally, the host computer is a vertical host computer;

[0031] In the vertical direction, the pressure applying mechanism, the first sliding mechanism, the second sliding mechanism, and the rotating mechanism are arranged sequentially from top to bottom.

[0032] Optionally, the integrated testing equipment also includes a control console;

[0033] The control console is electrically connected to the rotary mechanism, the pressure application mechanism, the first sliding mechanism, and the second sliding mechanism, respectively.

[0034] Furthermore, the present invention also provides a testing method for a comprehensive testing device for planetary screws. The testing method is implemented based on the comprehensive testing device for planetary screws described above, and includes:

[0035] S1. Fix one end of the workpiece to the rotary mechanism and the other end to the second sliding mechanism;

[0036] S2. The pressure-applying mechanism drives the first sliding mechanism to move, so that the first sliding mechanism applies a preset force on the workpiece;

[0037] S3. Fatigue strength test: The preset force is a gradually increasing tensile or compressive force, and the rotary mechanism does not rotate; the first sliding mechanism applies the preset force to the second sliding mechanism, and the detection unit detects the travel of the second sliding mechanism to measure the fatigue strength of the workpiece;

[0038] S4. Torque Detection: The preset force is a constant pressure, the first sliding mechanism is fixed; the rotary mechanism rotates and the speed gradually increases, and the detection unit detects the movement stroke of the second sliding mechanism to measure the torque of the workpiece.

[0039] S5. Operational accuracy detection: The preset force is a constant pressure, and the first sliding mechanism is not fixed; the rotary mechanism rotates at a constant speed, and the detection unit detects the movement stroke of the second sliding mechanism to measure the operational accuracy of the workpiece;

[0040] S3, S4, and S5 are executed asynchronously.

[0041] (III) Beneficial Effects

[0042] The beneficial effects of this invention are:

[0043] The first and second sliding mechanisms are elastically connected. The pressure-applying mechanism drives the first sliding mechanism to move to the corresponding position on the main unit, thus adjusting the force applied by the first sliding mechanism to the second sliding mechanism. The second sliding mechanism and the rotary mechanism clamp the two ends of the workpiece. Depending on the workpiece properties to be measured, the rotary mechanism can be used to drive the workpiece to rotate or remain stationary. When the rotary mechanism is stationary, the first sliding mechanism applies tension or pressure to the planetary screw to test its fatigue strength. When the rotary mechanism rotates, the nut and screw shaft of the planetary screw move relative to each other, thus pushing the second sliding mechanism to move. By measuring the stroke of the second sliding mechanism and combining it with parameters such as the rotational speed and torque of the rotary mechanism, the torque and operating accuracy of the planetary screw can be measured.

[0044] The integrated testing equipment can measure the fatigue strength, torque, and operational accuracy of planetary screws. Its high integration significantly reduces equipment costs and space requirements. Furthermore, it can simulate the working environment of planetary screws by applying a load, resulting in highly reliable test results with minimal error. Attached Figure Description

[0045] Figure 1 This is a schematic diagram of the integrated testing equipment for planetary lead screws of the present invention;

[0046] Figure 2 for Figure 1 Sectional view along the middle FF;

[0047] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0048] [Explanation of Labels in the Attached Image]

[0049] 1: Host;

[0050] 2: Rotary mechanism; 21: Rotary drive; 22: Chuck; 23: Torque sensor;

[0051] 3: Pressure applying mechanism; 31: Pressure applying driver; 32: Spindle screw; 33: Spindle slider; 34: Grating ruler;

[0052] 4: First sliding mechanism; 41: First slider; 42: Connector; 421: Limiting ring; 43: Elastic element; 44: Pressure sensor; 45: Sealing plate;

[0053] 5: Second sliding mechanism; 51: Second slider; 52: Connector; 521: T-block; 53: Displacement sensor;

[0054] 6: Workpiece. Detailed Implementation

[0055] To better explain and facilitate understanding of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0056] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0057] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0058] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; "connection" can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0059] See Figure 1This invention provides a comprehensive testing device for planetary screws. The device includes a main unit 1, and a rotary mechanism 2, a pressure applying mechanism 3, a first sliding mechanism 4, and a second sliding mechanism 5 mounted on the main unit 1. The rotary mechanism 2 can clamp or release a workpiece 6 and drive the workpiece 6 to rotate around its axis. The first sliding mechanism 4 and the second sliding mechanism 5 are both slidably connected to the main unit 1 and elastically connected. The first sliding mechanism 4 is slidably connected to the pressure applying mechanism 3, and the second sliding mechanism 5 is detachably connected to the workpiece 6. When the rotary mechanism 2 drives the workpiece 6 to rotate around its axis, the workpiece 6 can push the second sliding mechanism 5 to slide relative to the first sliding mechanism 4 along the axial direction of the workpiece 6, so that the testing units of each mechanism can measure the performance of the workpiece 6. The testing units are related sensors, including a displacement sensor 53, a pressure sensor 44, a grating ruler 34, and a torque sensor 23, which can be configured according to the testing requirements of the workpiece 6. Workpiece 6 is the planetary screw. Specifically, the nut of the planetary screw is fixed by the rotary mechanism 2, and the two free ends of the screw shaft of the planetary screw are connected to the second sliding mechanism 5 and the rotary mechanism 2 in a corresponding manner.

[0060] The first sliding mechanism 4 and the second sliding mechanism 5 are elastically connected. The pressure applying mechanism 3 drives the first sliding mechanism 4 to move to the corresponding position of the main unit 1, thereby adjusting the force applied by the first sliding mechanism 4 to the second sliding mechanism 5. The second sliding mechanism 5 and the rotary mechanism 2 clamp the two ends of the workpiece 6 respectively. Depending on the performance of the workpiece 6 to be measured, the rotary mechanism 2 can drive the workpiece 6 to rotate or not rotate. When the rotary mechanism 2 is not rotating, the first sliding mechanism 4 can apply a tension or pressure to the planetary screw to test the fatigue strength of the planetary screw. When the rotary mechanism 2 rotates, the nut and screw shaft of the planetary screw can move relative to each other, thereby pushing the second sliding mechanism 5 to move. By measuring the travel of the second sliding mechanism 5 and combining it with the rotation speed, torque and other parameters of the rotary mechanism 2, the torque and running accuracy of the planetary screw can be measured accordingly.

[0061] The integrated testing equipment can measure the fatigue strength, torque, and operational accuracy of planetary screws. Its high integration significantly reduces equipment costs and space requirements. Furthermore, it can simulate the working environment of planetary screws by applying a load, resulting in highly reliable test results with minimal error.

[0062] like Figure 2 and Figure 3As shown, the first sliding mechanism 4 includes a first slider 41, a connecting member 42, and an elastic member 43. The first slider 41 is slidably connected to the pressure applying mechanism 3 and the main unit 1. One end of the connecting member 42 is connected to the first slider 41, and the other end is connected to the second sliding mechanism 5. The elastic member 43 is provided on the connecting member 42. In this embodiment, both ends of the first slider 41 are connected to the main unit 1 one-to-one through a slide rail slider structure, and the first slider 41 and the second sliding mechanism 5 share the slide rail slider structure of the main unit 1, further saving the space occupied by the equipment. The middle end of the first slider 41 is connected to the pressure applying mechanism 3 through a lead screw slider structure. The elastic member 43 can be an existing spring, disc spring, etc.

[0063] The connecting member 42 includes a connecting rod and a limiting ring 421. The limiting ring 421 is sleeved on the connecting rod, and the two are coaxially arranged. Correspondingly, a countersunk hole is formed inside the first slider 41. The outer diameter of the limiting ring 421 is approximately equal to the diameter of the countersunk hole. Multiple elastic elements 43 are provided between the limiting ring 421 and the countersunk hole to allow the second sliding mechanism 5 to move relative to the first sliding mechanism 4. In this embodiment, a sealing plate 45 is provided at the countersunk hole. The sealing plate 45 is threadedly connected to the first slider 41, and the connecting rod is slidably connected to the sealing plate 45. The sealing plate 45 can limit the limiting ring 421, effectively preventing the limiting ring 421 from dislodging from the first slider 41. Elastic elements 43 can also be added between the sealing plate 45 and the limiting ring 421. The structure of the connecting member 42 can be set according to requirements, as long as it can elastically connect the first sliding mechanism 4 and the second sliding mechanism 5.

[0064] Furthermore, the first sliding mechanism 4 also includes a pressure sensor 44 or a tension sensor; one end of the pressure sensor 44 or the tension sensor is connected to the first slider 41, and the other end is connected to the second sliding mechanism 5. The pressure sensor 44 or the tension sensor can provide real-time feedback on the magnitude of the tension or pressure applied to the first sliding mechanism 4 by the pressure applying mechanism 3, thereby improving the measurement accuracy of the equipment; it can also obtain the change in the tension or pressure value between the first sliding mechanism 4 and the second sliding mechanism 5, as one of the standards for judging whether the relevant performance of the workpiece 6 meets the standards.

[0065] Secondly, the second sliding mechanism 5 includes a second slider 51, a connector 52, and a displacement sensor 53. The second slider 51 is slidably connected to the host 1. One end of the connector 52 is connected to the second slider 51, and the other end is detachably connected to the workpiece 6. The displacement sensor 53 is mounted on the host 1 and can detect the movement stroke of the second slider 51. The connector 52 serves to engage the workpiece 6, and the two are rotatably connected. In this embodiment, a T-shaped block 521 is rotatably connected inside the connector 52. The end of the T-shaped block 521 facing the workpiece 6 has an external thread, and the workpiece 6 has a corresponding threaded hole. The T-shaped block 521 is threadedly connected to the threaded hole. The specific structure of the connector 52 can be configured as needed to achieve a rotatable connection to the workpiece 6.

[0066] Furthermore, the rotary mechanism 2 includes a rotary driver 21, a chuck 22, and a torque sensor 23. The torque sensor 23 is mounted on the shaft of the rotary driver 21. The chuck 22 is mounted on the main unit 1 and can clamp the workpiece 6. One end of the workpiece 6 is connected to the shaft of the rotary driver 21, and the other end is connected to the second sliding mechanism 5. When testing the torque of the workpiece 6, the torque sensor 23 can measure the torque of the shaft of the rotary driver 21 in real time. When the second slider 51 moves, the torque of the workpiece 6 can be calculated according to the value on the torque sensor 23.

[0067] Secondly, the pressure applying mechanism 3 includes a pressure driver 31, a main spindle screw 32, a main spindle slider 33, and a grating ruler 34. One end of the main spindle screw 32 is coaxially connected to the rotating shaft of the pressure driver 31, and the other end is rotatably connected to the main unit 1. The main spindle slider 33 is threadedly connected to the main spindle screw 32. The main spindle slider 33 is connected to the first sliding mechanism 4. The grating ruler 34 is mounted on the main unit 1 and can detect the travel distance of the first slider 41. Optionally, a pressure sensor 44 or a tension sensor is provided between the connecting member 42 and the second slider 51. The pressure sensor 44 or the tension sensor can provide feedback on the force applied to the second slider 51 by the pressure applying mechanism 3, thereby improving the accuracy of the force applied by the pressure applying mechanism 3 to the workpiece 6.

[0068] In addition, the main unit 1 is a vertical main unit; in the vertical direction, the pressure application mechanism 3, the first sliding mechanism 4, the second sliding mechanism 5, and the rotation mechanism 2 are arranged sequentially from top to bottom. Compared with the existing horizontal main unit 1, setting the entire device vertically can adjust the force applied to the first slider 41 by the application mechanism to eliminate the influence of the weight of the workpiece 6 itself, and further improve the detection accuracy of the workpiece 6 performance.

[0069] Furthermore, the integrated testing equipment also includes a control console; the control console is electrically connected to the rotary mechanism 2, the pressure applying mechanism 3, the first sliding mechanism 4, and the second sliding mechanism 5. The control console can automatically calculate the required performance parameters of the workpiece 6 by combining the test results of each testing unit and the speed, torque, and other parameters of the rotary driver 21 and the pressure applying driver 31, thereby realizing the comprehensive measurement of the multi-functional parameters of the planetary screw.

[0070] Furthermore, a testing method for a comprehensive testing device for planetary screws is provided. This testing method is based on the aforementioned comprehensive testing device for planetary screws and includes the following steps:

[0071] S1. Fix the nut of the planetary screw to the chuck 22. One end of the planetary screw is connected to the rotary drive 21, and the other end is connected to the connector 52.

[0072] S2. The pressure driver 31 drives the first slider 41 to move so that the first slider 41 applies a preset force to the second slider 51, that is, applies a preset force to the planetary screw.

[0073] S3. Fatigue strength test: The preset force is a tension or compression force. The rotary mechanism 2 does not rotate and fixes the planetary screw. The first sliding mechanism 4 applies a preset force to the second sliding mechanism 5 to pull or press the planetary screw. The displacement sensor 53 detects the movement stroke of the second sliding mechanism 5. As the preset force gradually increases, when the second slider 51 starts to move, it indicates that the nut of the planetary screw and the screw shaft have a relative displacement, and the planetary screw has failed.

[0074] When performing fatigue strength testing on planetary screws, the screw shaft of the planetary screw can be connected to the rotary drive 21 or not.

[0075] S4. Torque detection: The preset force is a constant pressure, and the first sliding mechanism 4 is fixed; the rotary mechanism 2 rotates and the speed gradually increases, and the displacement sensor 53 detects the movement stroke of the second sliding mechanism 5; when the second slider 51 moves, it indicates that the screw shaft and nut of the planetary screw have rotated relative to each other, and the planetary screw has failed.

[0076] S5. Operational accuracy detection: The preset force is a constant pressure, and the first sliding mechanism 4 is not fixed; the rotary mechanism 2 rotates at a constant speed, and the detection unit detects the travel of the second sliding mechanism 5; the rotary mechanism 2 selects the set power to operate, the second slider 51 moves, and the planetary screw shaft and nut rotate relative to each other, which means that the planetary screw has overcome the load applied by the pressure mechanism 3 and is working normally, thus realizing the operation accuracy detection of the planetary screw in a simulation environment;

[0077] Operating accuracy refers to the displacement change of the nut when the lead screw shaft rotates one revolution, that is, the change in the travel of the second slide plate when the shaft of the rotary drive 21 rotates one revolution; for example, if the travel of the second slide plate is within the preset travel range when the shaft of the rotary drive 21 rotates one revolution, it means that the operating accuracy of this planetary lead screw meets the standard.

[0078] S3, S4, and S5 are executed asynchronously and can be selectively executed, i.e., partially executed and partially not executed. Based on the power, speed, and other parameters of the rotary drive 21 and the pressure drive 31, as well as the detection data of sensors such as the displacement sensor 53, torque sensor 23, and grating ruler 34, the fatigue strength, torque, and operating accuracy of the planetary screw can be calculated.

[0079] It should be noted that the comprehensive testing equipment of the present invention can perform both non-destructive and destructive testing, which can be achieved by adjusting the rotation speed of the pressure application mechanism 3. It is highly adaptable to the multi-functional testing of planetary screws.

[0080] It should be understood that the above description of specific embodiments of the present invention is only for illustrating the technical approach and features of the present invention, and is intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. However, the present invention is not limited to the specific embodiments described above. All changes or modifications made within the scope of the claims of the present invention should be covered within the protection scope of the present invention.

Claims

1. A comprehensive testing device for planetary lead screws, characterized in that, The integrated testing equipment includes a host (1), and a rotary mechanism (2), a pressure mechanism (3), a first sliding mechanism (4), and a second sliding mechanism (5) disposed on the host (1); The rotary mechanism (2) can clamp or release the workpiece (6) and drive the workpiece (6) to rotate around the axis. The first sliding mechanism (4) and the second sliding mechanism (5) are both slidably connected to the host (1), and the first sliding mechanism (4) and the second sliding mechanism (5) are elastically connected; and the first sliding mechanism (4) is slidably connected to the pressure applying mechanism (3), and the second sliding mechanism (5) is detachably connected to the workpiece (6); When the rotary mechanism (2) drives the workpiece (6) to rotate, the workpiece (6) can push the second sliding mechanism (5) to slide relative to the first sliding mechanism (4) along the axial direction of the workpiece (6); The host (1) is a vertical host, and the force applied by the pressure applying mechanism (3) to the first sliding mechanism (4) is adjusted accordingly to counteract the weight of the workpiece (6); The rotary mechanism (2), the pressure application mechanism (3), the first sliding mechanism (4) and the second sliding mechanism (5) are respectively provided with detection units that can measure the performance of the workpiece (6); the detection unit includes a displacement sensor (53), a pressure sensor (44), a grating ruler (34) and a torque sensor (23).

2. The comprehensive testing equipment for planetary lead screws according to claim 1, characterized in that, The first sliding mechanism (4) includes a first slider (41), a connecting member (42), and an elastic member (43); The first slider (41) is slidably connected to the pressure applying mechanism (3) and the host (1); One end of the connector (42) is connected to the first slider (41), and the other end is connected to the second sliding mechanism (5); The elastic element (43) is provided on the connector (42).

3. The comprehensive testing equipment for planetary lead screws according to claim 2, characterized in that, The first sliding mechanism (4) further includes the pressure sensor (44) or the tension sensor; One end of the pressure sensor (44) or the tension sensor is connected to the first slider (41), and the other end is connected to the second sliding mechanism (5).

4. The comprehensive testing equipment for planetary screws according to any one of claims 1-3, characterized in that, The second sliding mechanism (5) includes a second slider (51), a connector (52), and the displacement sensor (53); The second slider (51) is slidably connected to the host (1); One end of the connector (52) is connected to the second slider (51), and the other end is detachably connected to the workpiece (6); The displacement sensor (53) is mounted on the host (1) and can detect the movement of the second slider (51).

5. The comprehensive testing equipment for planetary lead screws according to claim 4, characterized in that, A T-shaped block (521) is rotatably connected inside the connector (52). The end of the T-shaped block (521) facing the workpiece (6) is provided with an external thread, and the T-shaped block (521) is threadedly connected to the workpiece (6).

6. The comprehensive testing equipment for planetary screws according to any one of claims 1-3, characterized in that, The rotary mechanism (2) includes a rotary driver (21), a chuck (22) and the torque sensor (23). The torque sensor (23) is provided on the shaft of the rotary drive (21). The chuck (22) is mounted on the host (1) and the chuck (22) is capable of clamping the workpiece (6). One end of the workpiece (6) is connected to the shaft of the rotary drive (21), and the other end is connected to the second sliding mechanism (5).

7. The comprehensive testing equipment for planetary screws according to any one of claims 1-3, characterized in that, The pressure application mechanism (3) includes a pressure driver (31), a main spindle screw (32), a main spindle slider (33), and the grating ruler (34). One end of the main spindle screw (32) is coaxially connected to the rotating shaft of the pressure driver (31), and the other end is rotatably connected to the host (1); The main spindle slider (33) is threadedly connected to the main spindle screw (32); the main spindle slider (33) is connected to the first sliding mechanism (4); The grating ruler (34) is mounted on the host (1) and can detect the movement stroke of the first slider (41).

8. The comprehensive testing equipment for planetary screws according to any one of claims 1-3, characterized in that, The host (1) is a vertical host; In the vertical direction, the pressure applying mechanism (3), the first sliding mechanism (4), the second sliding mechanism (5) and the rotation mechanism (2) are arranged sequentially from top to bottom.

9. The comprehensive testing equipment for planetary screws according to any one of claims 1-3, characterized in that, The integrated testing equipment also includes a control console; The control console is electrically connected to the rotary mechanism (2), the pressure application mechanism (3), the first sliding mechanism (4), and the second sliding mechanism (5), respectively.

10. A testing method for a comprehensive testing device for planetary screws, wherein the testing method for the comprehensive testing device for planetary screws is implemented based on the comprehensive testing device for planetary screws according to any one of claims 1-9, characterized in that, The detection method includes: S1. Fix one end of the workpiece (6) to the rotary mechanism (2) and the other end to the second sliding mechanism (5); S2. The pressure applying mechanism (3) drives the first sliding mechanism (4) to move so that the first sliding mechanism (4) applies a preset force to the workpiece (6); S3, Fatigue strength test: The preset force is a gradually increasing tensile or compressive force, and the rotary mechanism (2) does not rotate; the first sliding mechanism (4) applies the preset force to the second sliding mechanism (5), and the detection unit detects the travel of the second sliding mechanism (5) to measure the fatigue strength of the workpiece (6); S4. Torque detection: The preset force is a constant pressure, the first sliding mechanism (4) is fixed; the rotary mechanism (2) rotates and the speed gradually increases, and the detection unit detects the travel of the second sliding mechanism (5) to measure the torque of the workpiece (6); S5. Operational accuracy detection: The preset force is a constant pressure, the first sliding mechanism (4) is not fixed; the rotary mechanism (2) rotates and the rotation speed is constant, and the detection unit detects the movement stroke of the second sliding mechanism (5) to measure the operational accuracy of the workpiece (6); S3, S4, and S5 are executed asynchronously.

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