Abrasion degradation accelerating device for linear guide rail pair of machine tool

Abstract

A machine tool linear guide rail pair wear degradation acceleration device comprises a linear driving module, an air cylinder loading module, a test guide rail installation module and an intelligent detection module which are connected to a machine tool body base body. The linear driving module, the cylinder loading module and the test guide rail mounting module are connected to realize accelerated wear degradation, and the test guide rail mounting module and the intelligent detection module cooperate to realize intelligent detection of accelerated wear degradation; according to the invention, not only can accelerated degradation experiments be carried out on guide rails of different models, but also comparison tests of sliding blocks of different materials on the same guide rail can be carried out, and abrasion influences of different sliding block numbers on the same guide rail can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of precision machinery manufacturing, and particularly relates to a device for accelerating wear and degradation of a linear guide pair of a machine tool. Background Art

[0002] The accuracy retention of a numerically controlled machine tool is directly related to the accuracy of machined parts and the quality of the final product, and is of great significance to the development of the manufacturing industry. The machine tool guide rail is an important part of the machine tool, undertaking the key tasks of support and guidance, and its accuracy and performance directly affect the machining accuracy and machining efficiency of the machine tool. In machining, the accuracy retention of the guide rail determines the machining quality of the workpiece, and any slight wear or deformation may lead to an increase in machining errors, thereby affecting product quality and production costs. The high-end manufacturing industry has higher and higher requirements for the accuracy of machine tools. The accelerated wear of the guide rail leads to a decline in the performance of the machine tool, making it unable to meet the production requirements. Therefore, studying the accuracy retention of the linear guide pair is a key part of the research and development of high-grade numerically controlled machine tools.

[0003] When studying the accuracy retention of the linear guide pair, it becomes particularly crucial to timely understand the wear law and degradation mechanism of the guide rail. The traditional natural wear research has a long cycle and cannot meet the needs of the rapidly developing industry. The accelerated wear and degradation experiment can obtain the wear data of the guide rail under different working conditions in a relatively short time, providing an important basis for predicting the guide rail life, optimizing the design, and formulating maintenance strategies, and is of great significance for improving the overall level of mechanical manufacturing. Currently, relevant accelerated wear and degradation experimental devices have also been developed for carrying out accelerated wear and degradation experiments. However, the existing test devices are difficult to simulate the variable actual load conditions of machine tools. For example, in the patent application with the name "An accelerated degradation test platform for a ball screw pair" (publication number CN213022299U), the loading mechanism cannot simulate the actual working conditions. In the prior art, a loading cylinder is used to extend the piston and the workbench surface is loaded by setting rolling bearings, but this loading method is prone to unbalanced loads during operation, and the test bench structure is complex and the test process is unstable, such as the patent application with the name "A test bench for the accuracy retention of a linear guide pair with variable loads in multiple groups in parallel" (publication number CN116804591A); in addition, the types of linear guide pairs tested by the test device are relatively single, and frequent replacement of the test bench leads to large installation errors, difficult disassembly, low consistency of test results, and at the same time, comparative tests of different sliders and guide rails cannot be carried out, and the slider installation is cumbersome, such as the patent application with the name "A device for detecting the accelerated wear and degradation law of a machine tool linear guide pair" (publication number CN108000236B). Summary of the Invention

[0004] To overcome the shortcomings of the above-mentioned existing technologies, the purpose of the present invention is to provide a device for accelerating the wear and degradation of a machine tool linear guide pair, which can not only conduct accelerated degradation experiments on guides of different models, but also conduct comparative tests on the same guide with sliders of different materials, as well as the wear effects caused by different numbers of sliders on the same guide.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0006] A device for accelerating the wear and degradation of a machine tool linear guide pair includes a linear drive module 7, a cylinder loading module, a test guide installation module, and an intelligent detection module connected to a bed base 1; the linear drive module 7, the cylinder loading module, and the test guide installation module are connected to achieve accelerated wear and degradation, and the test guide installation module and the intelligent detection module cooperate to achieve intelligent detection of accelerated wear and degradation.

[0007] The linear drive module 7 is a ball screw linear module, which includes a main guide platform 71 installed on the bed base 1. Two main guides 75 are symmetrically installed on the front and rear of the main guide platform 71. A main slider 78 is installed on the main guide 75. The main slider 78 is connected and fixed to a main installation platform 76. The main installation platform 76 is connected to the measured guide installation platform 9 in the test guide installation module; a drive motor 72 is installed on the main guide platform 71. The drive motor 72 is connected to a ball screw rod 79, and the ball screw rod 79 is fixed on the main guide platform 71.

[0008] The drive motor 72 has the ability to rotate and change speed. The drive motor 72 drives the ball screw rod 79 to rotate to drive the main installation platform 76 to complete a reciprocating motion stroke.

[0009] The cylinder loading module includes three Z-direction lifting platforms 4 installed on the bed base 1. The three lifting platforms are lifted synchronously. Two of the lifting platforms are symmetrically installed on the front and rear sides of the bed base 1. A gantry frame 12 is connected to the two Z-direction lifting platforms 4. At the same time, the Z-direction lifting platform 4 is connected to a lateral loading cylinder 10. The lateral loading cylinder 10 is connected to the measured slider installation platform 9. The center of the gantry frame 12 is connected to a vertical loading cylinder 13. The vertical loading cylinder 13 is connected to the measured slider installation platform 9; another Z-direction lifting platform 4 is installed on the same axis as the drive motor 72 and fixed on the bed base 1. A horizontal loading cylinder 2 is connected to the Z-direction lifting platform 4 at this place. The horizontal loading cylinder 2 is connected to the measured slider installation platform 9.

[0010] The vertical loading cylinder 13 adopts a modular design, and different vertical loading cylinders are installed according to different vertical load requirements.

[0011] The test guide rail installation module includes a tested slider mounting table 9, a tested slider 20 is connected below the tested slider mounting table 9, the tested slider 20 cooperates with a tested guide rail 19, the tested guide rail 19 is connected to a tested guide rail mounting table 18, and the tested guide rail mounting table 18 is connected to a main mounting table 76.

[0012] The tested guide rail mounting table 18 has a trapezoidal guide rail mounting base surface structure, multiple groups of tested guide rails 19 are installed on the mounting surface, and each group installs various different types of tested guide rails 19. The type of the tested guide rail 19 can be uniformly increased or decreased through a slider mounting tooling 21; multiple slider fixing points are provided on the tested slider mounting table 9, and multiple tested sliders 20 are installed simultaneously to conduct an accelerated wear degradation experiment.

[0013] Support plates 8 are connected to the front and rear sides of the tested slider mounting table 9, and the support plates 8 are used for fixing the tested slider mounting table 9 when the loading cylinder is not working or when the tested slider 20 is not installed.

[0014] The intelligent detection module includes a distance sensor 6 and a speed sensor 22. The distance sensor 6 is connected to the bed body base 1 so that the distance sensor 6 faces the main mounting table 76 directly, and the distance sensor 6 is used to detect the position where the main mounting table 76 is located; the speed sensor 22 is fixedly connected to the tested guide rail mounting table 18 and is used to detect the reciprocating speed of the tested guide rail mounting table 18.

[0015] The lateral loading cylinder 10 is connected to the tested slider mounting table 9 through a lateral tension and pressure sensor 16, the vertical loading cylinder 13 is connected to the tested slider mounting table 9 through a vertical tension and pressure sensor 15, and the horizontal loading cylinder 2 is connected to the tested slider mounting table 9 through a horizontal tension and pressure sensor 17.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] The device structure of the present invention is concise and compact. There is no redundant structure between the loading cylinder and the bed body base 1, and redundant links in the process of applying the load are omitted; the defect that the detection data error is large due to the fact that the loading device cannot run synchronously with the workbench in the linear guide pair wear test is solved. At the same time, there will be no phenomenon of unbalanced applied load when the experimental device runs, and the stress condition of the machine tool guide rail can be simulated more realistically, and the loading method of the actual working condition load can be simulated better;

[0018] The tested guide rail mounting table of the present invention has a stepped guide rail mounting base surface structure, which can carry multiple types of guide rail pairs simultaneously, and multiple groups of the same type of guide rail pairs can also conduct parallel tests. Each group of tested guide rail pairs can conduct independent loading tests, and the use method is more flexible, avoiding repeated disassembly and affecting the installation accuracy.

[0019] The tested slider mounting table of the present invention can install multiple tested sliders at the same time, fully simulating the actual working conditions of the tested guide rail. It can also install tested sliders of different materials and models for comparative tests to find the tested slider with the best accuracy retention for the guide rail.

[0020] The present invention is equipped with a Z-direction lifting table. When the height and model of the tested guide rail change, the height can be adjusted to adapt to the change of the tested guide rail model, ensuring that after each tested guide rail is installed, the tested slider mounting table is horizontal.

[0021] The front and rear sides of the tested slider mounting table of the present invention are connected to support plates. The support plates can reduce the installation difficulty of the tested slider and the tested guide rail. The distance sensor can ensure that the linear drive module does not exceed the limit, improving the safety of the device.

[0022] The vertical loading cylinder of the present invention adopts a modular design. Different vertical loading cylinders are installed according to different experimental requirements. For example, when the central force is the largest, a single cylinder is used to apply a load at the central position. When the forces on both sides are the largest, vertical loading cylinders are installed on both sides. When the forces at the four corners are the largest, vertical loading cylinders are installed at the four corners respectively. At the same time, the vertical loading cylinder is always connected to the gantry frame to ensure that there is no relative movement between the vertical loading cylinder and the bed body base during the experiment, fully simulating the actual working conditions of the guide rail.

[0023] The present invention is provided with multiple sensors to detect various parameters, which are used to characterize the comprehensive performance of the linear guide pair. Based on the accelerated wear degradation experiment, the accuracy degradation law is studied according to the obtained data, and an accuracy retention model is established. Description of the Drawings

[0024] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention.

[0025] Figure 2 It is a side view of an embodiment of the present invention.

[0026] Figure 3 It is a schematic diagram of the structure of the linear drive module of an embodiment of the present invention.

[0027] Figure 4 It is a schematic diagram of the structure of the tested slider mounting table of an embodiment of the present invention.

[0028] Figure 5 It is a schematic diagram of the installation of the tested guide rail and the tested slider of an embodiment of the present invention.

[0029] 1 - Bed base, 2 - Horizontal loading cylinder, 3 - Horizontal loading cylinder fixing bracket, 4 - Z - direction lifting platform, 5 - Distance sensor bracket, 6 - Distance sensor, 7 - Linear drive module, 71 - Main guide rail platform, 72 - Drive motor, 73 - Motor bracket, 74 - Coupling, 75 - Main guide rail, 76 - Main installation platform, 77 - Lead screw nut, 78 - Main slider, 79 - Ball screw lever, 710 - Lead screw support seat, 8 - Support plate, 9 - Test slider installation platform, 10 - Lateral loading cylinder, 11 - Lateral loading cylinder fixing bracket, 12 - Gantry frame, 13 - Vertical loading cylinder, 14 - Vertical loading cylinder fixing bracket, 15 - Vertical tension and compression sensor, 16 - Lateral tension and compression sensor, 17 - Horizontal tension and compression sensor, 18 - Test guide rail installation platform, 19 - Test guide rail, 19 - 1 - Test guide rail No. 1, 19 - 2 - Test guide rail No. 2, 19 - 3 - Test guide rail No. 3, 20 - Test slider, 20 - 1 - Test slider No. 1, 20 - 2 - Test slider No. 2, 20 - 3 - Test slider No. 3, 21 - Slider installation tooling, 21 - 1 - Slider installation tooling No. 1, 21 - 2 - Slider installation tooling No. 2, 21 - 3 - Slider installation tooling No. 3, 22 - Speed sensor. Detailed implementation manners

[0030] The present invention will be further described below in conjunction with embodiments and drawings.

[0031] Refer to Figure 1 , a device for accelerating the wear and degradation of a linear guide pair of a machine tool, including a linear drive module 7, a cylinder loading module, a test guide rail installation module, and an intelligent detection module connected to a bed base 1; the linear drive module 7, the cylinder loading module, and the test guide rail installation module are connected to achieve accelerated wear and degradation, and the test guide rail installation module and the intelligent detection module cooperate to achieve intelligent detection of accelerated wear and degradation.

[0032] Refer to Figure 1 , Figure 3 , the linear drive module 7 is a ball screw linear module, including a main guide rail platform 71 installed on the bed base 1. The bed base 1 has strong strength and stiffness to ensure no deformation and vibration when applying load; two main guide rails 75 are symmetrically installed on the front and rear of the main guide rail platform 71, a main slider 78 is installed on the main guide rail 75, the main slider 78 is connected and fixed to the main installation platform 76, and the main installation platform 76 is connected to the test guide rail installation platform 9 in the test guide rail installation module; a motor bracket 73 is installed on the main guide rail platform 71, the motor bracket 73 fixes the drive motor 72, the drive motor 72 is connected to one end of the ball screw lever 79 through a coupling 74, a lead screw nut 77 is installed on the ball screw lever 79, the lead screw nut 77 is fixedly connected to the main installation platform 76, and the other end of the ball screw lever 79 is connected to the lead screw support seat 710, and the lead screw support seat 710 is fixed on the main guide rail platform 71.

[0033] The driving motor 72 has the ability of steering and speed change. The driving motor 72 drives the ball screw lever 79 to rotate to drive the main mounting table 76 to complete the reciprocating motion stroke, and then drives the measured guide rail mounting table 9 to move together.

[0034] Refer to Figure 1 , the cylinder loading module includes a Z-direction lifting table 4 installed on the bed body base 1. The Z-direction lifting table 4 can adjust the height where the loading cylinder is located. Facing different models of guide rails, the height can be adjusted to increase the versatility of the device. A total of three Z-direction lifting tables 4 are installed, and the three lifting tables are lifted synchronously. Two of the lifting tables are symmetrically installed on the front and rear sides of the bed body base 1. A gantry frame 12 is connected to the two Z-direction lifting tables 4. At the same time, the Z-direction lifting table 4 is connected to the lateral loading cylinder 10 through the lateral loading cylinder fixing bracket 11. The lateral loading cylinder 10 is connected to the measured slider mounting table 9. At the center of the gantry frame 12, it is connected to the vertical loading cylinder 13 through the vertical loading cylinder fixing bracket 14, and the vertical loading cylinder 13 is connected to the measured slider mounting table 9. Another Z-direction lifting table 4 is installed on the same axis as the driving motor 72, does not interfere with the linear drive module, and is fixed on the bed body base 1. A horizontal loading cylinder 2 is connected to the Z-direction lifting table 4 at this place through the horizontal loading cylinder fixing bracket 3, and the horizontal loading cylinder 2 is connected to the measured slider mounting table 9.

[0035] The vertical loading cylinder 13 adopts a modular design, and different vertical loading cylinders are installed according to different vertical load requirements.

[0036] Refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , the test guide rail mounting module includes a measured slider mounting table 9. The measured slider 20 is connected below the measured slider mounting table 9. The measured slider 20 cooperates with the measured guide rail 19. The measured guide rail 19 is connected to the measured guide rail mounting table 18. The measured guide rail mounting table 18 is connected to the main mounting table 76 and reciprocates with the main mounting table 76.

[0037] Refer to Figure 5, the to-be-tested guide rail mounting table 18 has a trapezoidal guide rail mounting base surface structure. Three groups of to-be-tested guide rails 19 are installed on the mounting surface, and three different types of to-be-tested guide rails 19 are installed in each group, namely the to-be-tested guide rail No. 1 19-1, the to-be-tested guide rail No. 2 19-2, and the to-be-tested guide rail No. 3 19-3; corresponding to-be-tested sliders 20 are successively installed on different types of to-be-tested guide rails, namely the to-be-tested slider No. 1 20-1, the to-be-tested slider No. 2 20-2, and the to-be-tested slider No. 3 20-3; the top surfaces of the to-be-tested sliders 19 are made to be in the same horizontal plane through the corresponding slider mounting tools 21, and the corresponding slider mounting tools 21 are respectively the slider mounting tool No. 1 21-1, the slider mounting tool No. 2 21-2, and the slider mounting tool No. 3 21-3, so as to uniformly increase or decrease the types of the to-be-tested guide rails 19 and the to-be-tested sliders 20; a plurality of slider fixing points are provided on the to-be-tested slider mounting table 9, and a plurality of to-be-tested sliders 20 are installed to conduct an accelerated wear degradation experiment. That is, through the test of the same type of to-be-tested sliders 20, the wear caused by the friction of different numbers of to-be-tested sliders 20 on the same to-be-tested guide rail 19 under the same working conditions, and the influence caused by the friction of different to-be-tested sliders 20 on the same to-be-tested guide rail 19 under the same conditions can be measured; in addition, support plates 8 are connected to the front and rear sides of the to-be-tested slider mounting table 9. The support plates 8 are used for fixing the to-be-tested slider mounting table 9 when the loading cylinders do not work or when the to-be-tested sliders 20 are not installed. At the same time, when the to-be-tested sliders 20 are installed, the workload of installing the to-be-tested sliders 20 can be reduced through the support plates 8, and the installation process of the to-be-tested guide rails 19 and the to-be-tested sliders 20 can be simplified.

[0038] Refer to Figure 1 , Figure 2 , the intelligent detection module includes a distance sensor 6 and a speed sensor 22. The distance sensor 6 is connected to the distance sensor bracket 5, so that the distance sensor 6 faces the main mounting table 76 directly. The distance sensor bracket 5 is connected to the bed body base 1. The distance sensor 6 is used to detect the position where the main mounting table 76 is located. According to the requirements of different accelerated wear degradation experiments, the positions that the main mounting table 76 needs to reach are different. Through the distance sensor 6, it can be ensured that the position where the main mounting table 76 is located does not exceed the expected position; the speed sensor 22 is fixedly connected to the to-be-tested guide rail mounting table 18 and is used to detect the reciprocating speed of the to-be-tested guide rail mounting table 18;

[0039] The lateral loading cylinder 10 is connected to the to-be-tested slider mounting table 9 through a lateral tension and pressure sensor 16. The vertical loading cylinder 13 is connected to the to-be-tested slider mounting table 9 through a vertical tension and pressure sensor 15 and a horizontal loading cylinder 2 is connected to the to-be-tested slider mounting table 9 through a horizontal tension and pressure sensor 17; the horizontal tension and pressure sensor 17 is used to measure the load change in the horizontal direction of the to-be-tested slider mounting table 9, the lateral tension and pressure sensor 16 is used to measure the load change in the two side directions of the to-be-tested slider mounting table 9, and the vertical tension and pressure sensor 15 is used to measure the load change in the vertical direction of the to-be-tested slider mounting table 9.

[0040] The device of the present invention can conduct experiments including but not limited to the following: single-model guide rail accelerated wear and degradation experiment, multi-model guide rail accelerated wear and degradation experiment, study on the influence of the number of sliders on the wear of the guide rail under the same conditions, and study on the influence of different model sliders on the wear of the guide rail under the same conditions. The specific experimental steps are as follows:

[0041] Step 1: Complete the assembly of the experimental device. Select the vertical loading cylinder 13 according to the force condition of the guide rail during actual operation. Adjust the heights of the lateral loading cylinder 10 and the horizontal loading cylinder 2 through the Z-direction lifting platform 4, so that the two lateral loading cylinders 10 and the horizontal loading cylinder 2 act on the central positions on both sides and the front of the tested slider mounting table 9, and fix each cylinder using each loading cylinder bracket;

[0042] Step 2: Initialize the settings of each sensor. The tension and compression sensors in the three loading directions measure the changes in the applied loads in each direction in real time. The speed sensor 22 monitors the speed of the reciprocating movement of the tested guide rail mounting table 18 in real time. The distance sensor 6 is used to detect whether the main mounting table 76 is within a reasonable movement range. The measurement and control module records the signals returned by each sensor in real time;

[0043] Step 3: Install the tested guide rail 19 and the tested slider 20 at the corresponding positions of the tested guide rail mounting table 18 and the tested slider mounting table 9 respectively, and measure the precision of each tested guide rail 19 and the tested slider 20 and record the initial data;

[0044] Step 4: According to the actual working conditions of the tested guide rail 19, each loading cylinder starts to apply loads. At the same time, the drive motor 72 in the linear drive module starts to work, driving the tested guide rail mounting table 18 to reciprocate at a specified speed. The speed sensor 22 detects the running speed of the tested guide rail mounting table 18 in real time. The distance sensor 6 ensures that the tested guide rail mounting table 18 reciprocates within the specified working range; Measure the precision of the tested guide rail 19 every 1 km of running-in. According to the precision failure judgment standard, if the precision measurement does not fail, re-load and conduct the next round of running-in until the precision of the tested linear guide rail pair fails;

[0045] Particularly, if abnormal vibration or noise is found during the experiment, immediately stop the test, remove the tested guide rail 19 and the tested slider 20, and conduct inspections. If fatigue pitting or other damage occurs, the test is terminated; otherwise, the test continues;

[0046] Step 5: Stop the experiment, remove the tested guide rail 19 and the tested slider 20, and organize and analyze the relevant test data;

[0047] It should be noted that if a single-model guide rail accelerated wear and degradation experiment or a multi-model guide rail accelerated wear and degradation experiment is carried out, ensure that the force on the test guide rail mounting table 18 and the test slider mounting table 9 is reasonable. Just install the corresponding model of the test slider 20 and the test guide rail 19 at the corresponding positions. At the same time, when carrying out a multi-model guide rail accelerated wear and degradation experiment, it is necessary to ensure that after installing the test guide rail 19 and the test slider 20, the upper surface of the test slider mounting table 9 is in a horizontal state to avoid uneven force when the loading cylinder is loaded.

[0048] In addition, when studying the influence of the number of sliders on the wear of the guide rail under the same conditions, two methods can be adopted. Method 1: Install three groups of three different models of the test guide rail 19 on the test guide rail mounting table 18 respectively. Install one test slider 20 that matches the guide rail model at the corresponding slider installation positions above the first group of the test guide rail 19, install two test sliders 20 that match the guide rail model at the corresponding slider installation positions above the second group of the test guide rail 19, and install three test sliders 20 that match the guide rail model at the corresponding slider installation positions above the third group of the test guide rail 19. The number of test sliders 20 can be adjusted according to the experimental requirements, with a minimum of one and a maximum of five. Method 2: Design the installation of the test slider 20 and the moving distance of the test guide rail mounting table 18 according to the actual situation. Taking three test sliders 20 as an example, install three test sliders 20 above one test guide rail 19. When setting the distance, make the front half of the guide rail only pass through the friction of one test slider 20, the middle half pass through the friction of three test sliders 20, and the rear half pass through the friction of two test sliders 20. If five test sliders 20 are taken as an example, install five test sliders 20 above the test guide rail 19 and number them. The test slider 20 closest to the drive motor 72 is numbered 1, and they are numbered 2, 3, 4, and 5 in sequence. Make the front end of the test guide rail 19 stop at the 1st test slider 20, and the front end exiting the 5th test slider 20 is considered as one round trip. Then the front end to the end of the test guide rail 19 experiences the wear of five to one test slider 20 in sequence. Conduct precision detection on each section in turn and record the running-in distance when the precision fails for each section respectively.

[0049] In addition, when studying the influence of wear of slider guides of different models under the same conditions, it is only necessary to follow the method of studying the influence of the number of sliders on the wear of the guide rail under the same conditions as above, and replace the number of the measured sliders 20 with the measured sliders 20 of different models. It should be noted that when using Method 2, the same section should not be rubbed by the measured sliders 20 of different models. Therefore, when using Method 2, at most three models of the measured sliders 20 can be detected simultaneously, that is, three different models of the measured sliders 20 are installed at the middle and both ends respectively. It should be noted that all the above are about a set of experiments. Three sets of experiments can be carried out simultaneously on the experimental equipment, so at most nine models of the measured sliders 20 can be detected simultaneously. Similarly, in the three sets of experiments, the measured sliders 20 of three models can be placed at different positions in the middle and at both ends respectively for comparative experiments to reduce variables and make the experiment more credible.

Claims

1. A device for accelerating wear and degradation of a linear guide pair of a machine tool, comprising a linear drive module (7), a cylinder loading module, a test guide rail installation module, and an intelligent detection module connected to a bed base (1), characterized in that: The linear drive module (7), the cylinder loading module, and the test rail mounting module are connected to achieve accelerated wear degradation, and the test rail mounting module and the intelligent detection module cooperate to achieve intelligent detection of accelerated wear degradation.

2. The device according to claim 1, wherein: The linear drive module (7) is a ball screw linear module, which includes a main guide rail table (71) installed on the bed base (1). Two main guide rails (75) are symmetrically installed on the front and rear of the main guide rail table (71). A main slider (78) is installed on the main guide rail (75), and the main slider (78) is connected and fixed to the main mounting table (76). The main mounting table (76) is connected to the measured rail mounting table (9) in the test rail mounting module; a drive motor (72) is installed on the main guide rail table (71), and the drive motor (72) is connected to the ball screw lever (79), and the ball screw lever (79) is fixed on the main guide rail table (71).

3. The device according to claim 2, characterized in that: The drive motor (72) has the ability to steer and change speed. The drive motor (72) drives the ball screw lever (79) to rotate to drive the main mounting table (76) to complete the reciprocating motion stroke.

4. The device according to claim 2, characterized in that: The cylinder loading module includes a Z-direction lifting table (4) installed on the bed base (1). There are a total of three Z-direction lifting tables (4), and the three lifting tables are lifted synchronously. Two of the lifting tables are symmetrically installed on the front and rear sides of the bed base (1). A gantry frame (12) is connected to the two Z-direction lifting tables (4). At the same time, the Z-direction lifting table (4) is connected to the lateral loading cylinder (10), and the lateral loading cylinder (10) is connected to the measured slider mounting table (9). The center of the gantry frame (12) is connected to the vertical loading cylinder (13), and the vertical loading cylinder (13) is connected to the measured slider mounting table (9); the other Z-direction lifting table (4) is installed on the same axis as the drive motor (72) and is fixed on the bed base (1). A horizontal loading cylinder (2) is connected to this Z-direction lifting table (4), and the horizontal loading cylinder (2) is connected to the measured slider mounting table (9).

5. The device according to claim 4, characterized in that: The vertical loading cylinder (13) adopts a modular design, and different vertical loading cylinders are installed according to different vertical load requirements.

6. The device according to claim 4, characterized in that: The test rail mounting module includes a measured slider mounting table (9). The measured slider (20) is connected below the measured slider mounting table (9). The measured slider (20) cooperates with the measured rail (19). The measured rail (19) is connected to the measured rail mounting table (18). The measured rail mounting table (18) is connected to the main mounting table (76).

7. The device according to claim 6, characterized in that: The measured rail mounting table (18) has a trapezoidal rail mounting base surface structure. Multiple groups of measured rails (19) are installed on the mounting surface. Each group installs multiple different types of measured rails (19). The type of the measured rail (19) is uniformly increased or decreased through the slider mounting tooling (21); multiple slider fixing points are provided on the measured slider mounting table (9), and multiple measured sliders (20) are installed at the same time to conduct an accelerated wear degradation experiment.

8. The device according to claim 6, characterized in that: Support plates (8) are connected to the front and rear sides of the measured slider mounting table (9). The support plates (8) are used to fix the measured slider mounting table (9) when the loading cylinder is not working or when the measured slider (20) is not installed.

9. The device according to claim 6, characterized in that: The intelligent detection module includes a distance sensor (6) and a speed sensor (22). The distance sensor (6) is connected to the bed base (1) such that the distance sensor (6) faces the main mounting table (76) directly, and the distance sensor (6) is used to detect the position where the main mounting table (76) is located; the speed sensor (22) is fixedly connected to the measured guide rail mounting table (18) and is used to detect the reciprocating speed of the measured guide rail mounting table (18).

10. The device according to claim 9, characterized in that: The lateral loading cylinder (10) is connected to the measured slider mounting table (9) through a lateral tension and compression sensor (16), the vertical loading cylinder (13) is connected to the measured slider mounting table (9) through a vertical tension and compression sensor (15), and the horizontal loading cylinder (2) is connected to the measured slider mounting table (9) through a horizontal tension and compression sensor (17).

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