Multi-angle testing mechanism for hydrostatic slide guide performance test

Abstract

This application relates to a multi-angle testing mechanism for hydrostatic sliding guide rail performance testing, belonging to the technical field of hydrostatic guide rail performance testing. The structure of this multi-angle testing mechanism includes: multiple sets of hydrostatic sliding blocks mounted on the hydrostatic guide rail; a moving platform mounted on each set of hydrostatic sliding blocks; a distance sensor mounted at one end of the moving platform; linear guide rails mounted on both sides of the bed; a gantry-shaped loading frame slidably mounted on the two sets of linear guide rails; a loading component mounted at the top center of the gantry-shaped loading frame; the loading component having the freedom to move along the gantry-shaped loading frame; the loading component being fixedly connected to the moving platform; drive components mounted on both sides inside the gantry-shaped loading frame; and an angle switching component mounted on the bed above the linear guide rails. The two ends of the drive component are respectively mounted on the loading component and the angle switching component, and the angle switching component drives the loading component to slide through the drive components. This application has the technical effect of automatic switching of multi-angle loading in hydrostatic guide rail testing.

Description

Technical Field

[0001] This application relates to the technical field of hydrostatic guide rail performance testing, and in particular to a multi-angle testing mechanism for hydrostatic slider type guide rail performance testing. Background Technology

[0002] Existing multi-angle testing mechanisms for hydrostatic sliding guide rail performance testing use distance sensors to monitor the changes in oil film thickness between the guide rail and the slider in real time during the sliding process. However, current multi-angle testing mechanisms for hydrostatic sliding guide rail performance testing employ a fixed loading direction design. While some mechanisms can achieve angle adjustment, this requires manual disassembly and reassembly of the loading components to switch testing angles, and most can only detect single parameters such as speed or oil film thickness. Furthermore, the loading force control accuracy of existing mechanisms is low, and when simulating multi-angle loads under complex actual working conditions, force fluctuations or directional deviations are prone to occur, making it difficult to accurately reproduce the true working state of the hydrostatic guide rail.

[0003] Patent (CN 117740519 A) discloses a hydrostatic guide rail performance testing device and method. The device includes a base, a worktable, a pressurizing mechanism, a load monitoring mechanism, an oil supply mechanism, and an oil film monitoring mechanism. The load monitoring mechanism is mounted on the worktable to monitor the pressure applied to it. The oil supply mechanism supplies oil to the hydrostatic guide rail to create an oil film between the guide rail and the hydrostatic slider. The oil film monitoring mechanism is mounted on the base and monitors the thickness of the oil film. The hydrostatic guide rail performance testing method includes testing steps and calculation steps. While the patent enables testing of hydrostatic guide rails, it is limited to testing in a single direction each time; it cannot effectively switch between different angles of pressure application during the testing of hydrostatic guide rails.

[0004] Regarding the aforementioned technologies, the inventors believe that there is a drawback: they cannot automatically switch between different angles for performance testing. Summary of the Invention

[0005] To address the aforementioned technical problems, this application provides a multi-angle testing mechanism for testing the performance of hydrostatic slider guide rails.

[0006] This application provides a multi-angle testing mechanism for testing the performance of a hydrostatic slider guide rail, which adopts the following technical solution: A multi-angle testing mechanism for testing the performance of a hydrostatic slider-type guide rail includes a bed, with hydrostatic guide rails arranged on both sides of the top of the bed, side guide rails arranged on the outer side of the hydrostatic guide rails, pressure plates arranged on the side guide rails, multiple sets of hydrostatic sliders arranged on the hydrostatic guide rails, and a moving platform arranged on the multiple sets of hydrostatic sliders. The moving platform is slidably connected to the hydrostatic guide rails through the multiple sets of hydrostatic sliders. A distance sensor is arranged at one end of the moving platform. Linear guide rails are arranged on both sides of the bed, and a gantry-shaped loading frame is slidably arranged on the two sets of linear guide rails. A loading component is arranged at the top center of the gantry-shaped loading frame. The loading component has the freedom to move along the gantry-shaped loading frame. The working end of the loading component is fixedly connected to the top of the moving platform. Drive components are arranged on both sides inside the gantry-shaped loading frame. An angle switching component is arranged on the bed above the linear guide rails. One end of the drive component is arranged on the loading component, and the other end of the drive component is arranged on the angle switching component. The angle switching component drives the loading component to slide through the drive components.

[0007] By adopting the above technical solution, the mobile platform is connected to the hydrostatic guide rail through multiple sets of hydrostatic sliders, the gantry loading frame is slidably set on the linear guide rail, the loading component is fixedly connected to the mobile platform, and is controlled by the drive component and the angle switching component in coordination. During the loading process, the load is applied stably, avoiding test errors caused by the shaking of the loading mechanism or uneven force, and ensuring the accuracy and stability of the loading force. The angle switching component drives the loading component to slide through the drive component. Combined with the degree of freedom of movement of the loading component along the gantry loading frame, it can realize the application of loads to the mobile platform at multiple angles and in multiple directions. Compared with the traditional single-direction test mechanism, it can simulate the performance of the guide rail under complex force angles in actual working conditions, such as tilt and pitch, and comprehensively evaluate the key performance indicators such as stiffness and load-bearing capacity of the guide rail under different force angles. The device integrates a distance sensor and the loading component. The distance sensor can monitor the change of oil film thickness in real time.

[0008] Preferably, the top of the gantry loading frame has a longitudinal through slot in the middle part, the gantry loading frame has a hollow cavity inside, the slot communicates with the hollow cavity, the bottom of the gantry loading frame is slidably connected to the linear guide rails on both sides of the bed, and the inner sides of the gantry loading frame are provided with drive ports.

[0009] By adopting the above technical solution, the loading component is slidably connected in the longitudinally penetrating slot. Combined with the sliding of the gantry loading frame along the linear guide rail, the loading point on the moving platform can be precisely adjusted. The loading position can be switched by sliding adjustment alone, adapting to diverse testing scenarios. The drive port on the inner side of the gantry loading frame provides reasonable installation and movement space for the drive component, allowing the drive component to smoothly connect the angle switching component and the loading component. When the angle switching component drives the loading component to slide, the drive port can avoid structural interference between the drive component and the gantry loading frame, ensuring the stability of the movement trajectory of the loading component during angle adjustment and guaranteeing the smooth realization of multi-angle loading tests. The slot is connected to the hollow cavity, which makes it easy to hide part of the drive component's structure in the hollow cavity, avoiding messy wiring that may affect equipment operation or testing accuracy.

[0010] Preferably, the loading assembly includes a sliding cylinder, a pressurizing cylinder, a loading rod, and multiple sets of pressurizing rods. The pressurizing cylinder has pressurizing ports on both sides of its top. The multiple sets of pressurizing rods are slidably connected within the pressurizing ports. One end of each loading rod is located inside the pressurizing cylinder, and the other end penetrates the bottom of the pressurizing cylinder. The loading rod is slidably connected to the pressurizing cylinder. The sliding cylinder has sliding grooves on both sides of its top. An inlet is located at the top of each sliding groove, and a bearing groove is located at the bottom of each sliding groove. The bottom of the sliding cylinder is fitted onto the loading cylinder, and the sliding cylinder is slidably connected to the pressurizing cylinder. After sliding, the inlet of the sliding cylinder aligns with the pressurizing rod. The two sides of the lower part of the pressurizing cylinder are slidably connected to the slots.

[0011] By adopting the above technical solution, the horizontal force can be switched to a vertical force by switching the upper and lower positions of the sliding cylinder. During the first round-trip test of the moving platform, the sliding cylinder is in the upper position. The drive component applies a horizontal force in the left and right direction to the loading component only by resisting the bearing groove. The performance of the guide rail under the action of horizontal lateral force can be tested separately. After completion, the sliding cylinder moves down and the inlet is aligned with the pressure port. The drive component applies a downward vertical force to the loading rod through the pressure rod. The pressure rod is slidably connected to the pressure port, and the loading rod is slidably engaged with the pressure cylinder to ensure that the force of the drive component can be directly transmitted to the loading rod through the pressure rod. The sliding connection between the sliding cylinder and the pressure cylinder provides a stable guide for the position switching of the loading component, ensuring that the application direction of the horizontal and vertical forces is accurate and controllable, and improving the reliability of the test data.

[0012] Preferably, the drive assembly includes a drive cylinder, an oil pipe, and a thrust cylinder. The drive cylinder is fixedly connected inside the drive port. The thrust cylinder is installed in the hollow cavity at the top of the gantry loading frame, which communicates with the slot. The oil pipe is located in the hollow cavity of the gantry loading frame. One end of the oil pipe is connected to the drive cylinder, and the other end of the oil pipe is connected to the thrust cylinder.

[0013] By adopting the above technical solution, the drive cylinder is fixed in the drive port of the gantry loading frame, which can directly transmit the force of the angle switching component, thereby driving the loading component to achieve horizontal angle and position adjustment. The thrust cylinder is installed in the hollow cavity connected to the slot, and can receive the power transmitted by the drive cylinder through the oil pipeline, and apply vertical or lateral thrust to the loading component. The two work together to accurately respond to the power requirements of different test conditions such as horizontal force loading and vertical force loading, ensuring that the action of the loading component is highly matched with the test target. The power connection between the drive cylinder and the thrust cylinder is realized by using oil pipeline. Hydraulic transmission has the characteristics of smooth force transmission and no rigid impact, which can effectively avoid force fluctuations caused by gaps or vibrations in mechanical transmission.

[0014] Preferably, the drive cylinder includes a drive housing, a drive piston, a return spring, and a drive rod. The drive piston is slidably connected inside the drive housing. One end of the drive rod is fixedly connected to the drive piston, and the working end of the drive rod passes through the drive housing. The drive rod is slidably connected to the drive housing. The return spring is sleeved on the drive rod. One end of the return spring is fixedly connected to the drive housing, and the other end of the return spring is fixedly connected to the working end of the drive rod. The working end of the drive rod is configured as an inclined surface.

[0015] By adopting the above technical solution, the drive piston is slidably connected inside the drive housing to form a sealed and stable power transmission chamber, which can uniformly convert oil pressure or external thrust into the axial force of the drive rod, avoiding force fluctuations caused by piston jamming. The precise fit between the piston and the housing reduces losses during power transmission, ensuring a high match between the output force of the drive cylinder and the input force of the angle switching component, further improving the reliability of test data. The working end of the drive rod is set as an inclined surface, which can form an inclined surface fit with the contact surface of the angle switching component. The inclined surface can efficiently convert the force of the angle switching component into the axial thrust of the drive rod through sliding contact, avoiding jamming or force transmission offset problems caused by a flat contact surface.

[0016] Preferably, the thrust cylinder includes a thrust housing, a thrust piston, and a thrust rod. The thrust piston is slidably connected inside the thrust housing. One end of the thrust rod is fixedly connected to the thrust piston. The working end of the thrust rod passes through the thrust housing and is slidably connected to the thrust housing. A protrusion that cooperates with a sliding groove is provided on the working end of the thrust rod.

[0017] By adopting the above technical solution, the structural design enables the thrust cylinder to transmit force in both the left and right directions and to stably transition to the downward force transmission, perfectly adapting to the multi-dimensional force loading requirements in multi-angle testing of guide rails. Compared with a single-direction loading structure, this switchable and highly stable force transmission method allows the testing mechanism to cover more guide rail performance testing items, improving the versatility of the equipment. The cooperation between the protrusion and the sliding groove ensures that when the thrust rod disengages from the bearing groove, it can still be held in the sliding groove by the protrusion, preventing the thrust rod from completely disengaging from the loading component.

[0018] Preferably, the angle switching component includes two sets of switching guide rails and a slider device. The two sets of switching guide rails are fixedly connected to both sides of the bed, and the slider device is slidably connected to the switching guide rails. The slider device includes two sets of first sliders, second sliders, and third sliders. The two sets of first sliders are respectively disposed at one end of the two sets of switching guide rails. The second slider is disposed on the switching guide rail on one side of the first slider of a single set. The end of the switching guide rail away from the second slider is provided with a first groove. The third slider is disposed on the end of the other set of switching guide rails away from the first slider. The end of the other set of switching guide rails near the first slider is provided with a second groove.

[0019] By adopting the above technical solution, the loading mode is switched through the cooperation of the slider device and the drive assembly. Initially, the second slider abuts against the drive rod in one of the drive assemblies, causing the drive assembly to apply a lateral force to the loading assembly, testing the performance of the hydrostatic guide rail under a single lateral load. After the second slider slides into the first groove, the drive rod is relieved of force, and the third slider abuts against the drive rod in another drive assembly, applying a reverse lateral force to complete the return test of the moving platform. Finally, the drive gantry loading frame reaches the two sets of first sliders, triggering the drive rods in the two sets of drive assemblies to apply force to the pressure rod, realizing the vertical loading of the loading assembly. The step-by-step switching logic can comprehensively cover the performance test of the guide rail under bidirectional lateral force and vertical force, simulating the complex force angles in actual working conditions and improving the comprehensiveness of the test.

[0020] Preferably, one side of the first slider, the second slider, and the third slider is provided with an inclined surface that cooperates with the drive rod, and the top of the first slider, the second slider, and the third slider is provided with a drive groove.

[0021] By adopting the above technical solution, the inclined surfaces of the slider and the drive rod cooperate with each other to form a wedge-shaped contact structure. When the gantry loading frame drives the drive rod to slide with the moving platform, the two sets of inclined surfaces can transmit the force through smooth contact, avoiding the jamming or force offset problems that may occur in planar contact. The drive groove at the top of the slider can form a longitudinal limit on the movement trajectory of the drive rod. When the drive rod slides along the inclined surface of the slider or moves with the gantry loading frame, the two side walls of the drive groove can limit the radial sway of the drive rod, ensuring that the drive rod always moves in the preset direction.

[0022] Preferably, a push block is provided at the bottom of the second groove, and the push block is slidably connected to the second groove. An unlocking component is provided on the bed frame on one side of the push block. The unlocking component includes a rotating rod and a support rod. The rotating rod is rotatably connected to the bed frame. A push rod is provided at one end of the rotating rod, and a lever is provided at the other end of the rotating rod. A sleeve is provided at one end of the push block, and the sleeve is fitted onto the push rod. One end of the support rod is slidably connected to the bottom of the sliding cylinder, and one end of the support rod abuts against the bottom of the pressurizing cylinder. The push block drives the support rod to slide through the rotating rod.

[0023] By adopting the above technical solution, the push block can be pushed to trigger the unlocking component only when the third slider slides into the second groove. The push block drives the rotating rod to rotate, causing the push rod to drive the support rod to slide through the sleeve, ultimately releasing the constraint on the sliding cylinder and allowing it to slide downward along the pressurized cylinder. This ensures that the loading direction switching can only be performed after the bidirectional lateral force test is completed. The push block slides into the second groove, the rotating rod rotates and connects to the bed, and the support rod slides and connects to the bottom of the sliding cylinder. These multiple constraints fix the movement trajectory of the unlocking component, ensuring that the sliding distance of the support rod is consistent each time it is triggered, thereby ensuring the accurate downward movement of the sliding cylinder.

[0024] Preferably, a stator of a linear motor is provided on the bed between the two sets of hydrostatic guide rails, and a mover of a linear motor is provided in the middle of the moving platform. The linear motor is used to drive the moving platform to slide.

[0025] By adopting the above technical solution and using a direct drive method with a linear motor, there is no need for intermediate transmission components such as lead screws and synchronous belts. This fundamentally eliminates the mechanical backlash caused by component meshing and wear in traditional transmissions. The linear motor can achieve instantaneous start and stop, rapid speed change, and its dynamic response frequency is much higher than that of traditional transmission methods.

[0026] In summary, this application includes at least one of the following beneficial technical effects: By switching the position of the sliding cylinder up and down, the horizontal force can be switched to the vertical force. During the first round-trip test of the moving platform, the sliding cylinder is in the upper position. The drive component applies a horizontal force in the left and right direction to the loading component only by resisting the bearing groove. The performance of the guide rail under the action of horizontal lateral force can be tested separately. After completion, the sliding cylinder moves down and the inlet is aligned with the pressure port. The drive component applies a downward vertical force to the loading rod through the pressure rod. The pressure rod is slidably connected to the pressure port, and the loading rod is slidably engaged with the pressure cylinder to ensure that the force of the drive component can be directly transmitted to the loading rod through the pressure rod. The sliding connection between the sliding cylinder and the pressure cylinder provides a stable guide for the position switching of the loading component, ensuring that the application direction of the horizontal and vertical forces is accurate and controllable, and improving the reliability of the test data.

[0027] By cooperating with the slider device and the drive assembly, the loading mode is switched. Initially, the second slider abuts against the drive rod in one of the drive assemblies, causing that drive assembly to apply a lateral force to the loading assembly, testing the performance of the hydrostatic guide rail under a single lateral load. After the second slider slides into the first groove, the drive rod is relieved of force, and the third slider abuts against the drive rod in another drive assembly, applying a reverse lateral force to complete the return test of the moving platform. Finally, the drive gantry loading frame reaches the two sets of first sliders, triggering the drive rods in the two sets of drive assemblies to apply force to the pressure rod, realizing the vertical loading of the loading assembly. The step-by-step switching logic can comprehensively cover the performance test of the guide rail under bidirectional lateral force and vertical force, simulating the complex force angles in actual working conditions and improving the comprehensiveness of the test. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure in the embodiment.

[0029] Figure 2 This is a cross-sectional schematic diagram of the internal structure of the gantry loading frame and the drive assembly in the embodiment.

[0030] Figure 3 This is a cross-sectional schematic diagram of the internal structure of the loading component in the embodiment.

[0031] Figure 4 This is a schematic diagram of the angle switching component in the embodiment.

[0032] Figure 5 This is a schematic diagram of the unlocking component in the embodiment.

[0033] Explanation of reference numerals in the attached drawings: 1. Bed; 11. Static pressure guide rail; 12. Side guide rail; 13. Pressure plate; 14. Static pressure slider; 15. Moving platform; 151. Distance sensor; 16. Linear guide rail; 17. Linear motor; 2. Gantry loading frame; 21. Slot; 22. Hollow cavity; 23. Drive port; 3. Loading assembly; 31. Sliding cylinder; 311. Sliding groove; 3111. Inlet; 3112. Bearing groove; 32. Pressurizing cylinder; 321. Pressurizing port; 33. Loading rod; 34. Pressurizing rod; 4. Drive assembly; 41. Drive cylinder; 411. Drive... 412. Moving housing; 413. Drive piston; 414. Return spring; 415. Drive rod; 42. Oil pipe; 43. Thrust cylinder; 431. Thrust housing; 432. Thrust piston; 433. Thrust rod; 5. Angle switching assembly; 51. Switching guide rail; 511. First groove; 512. Second groove; 5121. Push block; 52. Slider device; 521. First slider; 522. Second slider; 523. Third slider; 524. Drive groove; 6. Unlocking assembly; 61. Rotating rod; 62. Support rod; 63. Push rod; 64. Toggle lever; 65. Sleeve. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0035] This application discloses a multi-angle testing mechanism for testing the performance of a hydrostatic slider guide rail. (Refer to...) Figure 1 The system includes a bed 1, with static pressure guide rails 11 on both sides of the top of the bed 1, side guide rails 12 on the outer side of the static pressure guide rails 11, and pressure plates 13 on the side guide rails 12. Multiple sets of static pressure sliders 14 are mounted on the static pressure guide rails 11, and a moving platform 15 is mounted on each set of static pressure sliders 14. The moving platform 15 is slidably connected to the static pressure guide rails 11 via the multiple sets of static pressure sliders 14. A distance sensor 151 is mounted at one end of the moving platform 15. The stator of a linear motor 17 is mounted on the bed 1 between two sets of static pressure guide rails 11, and the mover of the linear motor 17 is mounted in the middle of the moving platform 15. The linear motor 17 drives the moving platform 15 to slide along the static pressure guide rails 11. Linear guide rails 16 are mounted on both sides of the bed 1, and gantry-shaped loading frames 2 are slidably mounted on the two sets of linear guide rails 16. A loading component 3 is provided at the top center of the carrier 2. The loading component 3 has the freedom to move along the gantry loading frame 2. The working end of the loading component 3 is fixedly connected to the top of the moving platform 15. Drive components 4 are provided on both sides inside the gantry loading frame 2. An angle switching component 5 is provided on the bed 1 above the linear guide rail 16. One end of the drive component 4 is provided on the loading component 3, and the other end of the drive component 4 is provided on the angle switching component 5. The moving platform 15 slides and drives the gantry loading frame 2 to slide along the linear guide rail 16. When sliding, the drive component 4 on the gantry loading frame 2 abuts against the angle switching component 5, so that the angle switching component 5 drives the loading component 3 to slide through the drive component 4, applying forces of different angles to the moving platform 15, and then transmitting them to the static pressure slide rail through the static pressure slider 14 for testing.

[0036] Reference Figure 1 and Figure 3The loading component 3 includes a sliding cylinder 31, a pressurizing cylinder 32, a loading rod 33, and multiple sets of pressurizing rods 34. The pressurizing cylinder 32 has pressurizing ports 321 on both sides of its top. The multiple sets of pressurizing rods 34 are slidably connected within the pressurizing ports 321. One end of the loading rod 33 is located inside the pressurizing cylinder 32, and the other end of the loading rod 33 penetrates through the bottom of the pressurizing cylinder 32. The loading rod 33 is slidably connected to the pressurizing cylinder 32. Sliding grooves 311 are provided on both sides of the top of the sliding cylinder 31. The working end of the driving component 4 is located within the sliding groove 311. The top of the sliding groove 311... The unit is equipped with an inlet 3111, and the bottom of the sliding groove 311 is equipped with a bearing groove 3112. The drive assembly 4 abuts against the bearing groove 3112, so that the loading assembly 3 generates a horizontal force for radial testing. The bottom of the sliding cylinder 31 is sleeved on the pressure cylinder 32, and the sliding cylinder 31 and the pressure cylinder 32 are slidably connected. After the sliding cylinder 31 slides, its inlet 3111 is aligned with the pressure rod 34. The two sets of drive assemblies 4 abut against the two sets of pressure rods 34, so that the pressure rods 34 move into the pressure cylinder 32, so that the moving platform 15 is subjected to the vertical force of the loading rod 33 for testing.

[0037] Reference Figure 1 and Figure 2The top of the gantry loading frame 2 has a longitudinal through slot 21 in the middle. The interior of the gantry loading frame 2 is a hollow cavity 22, and the slot 21 communicates with the hollow cavity 22. The bottom of the pressure cylinder 32 in the loading assembly 3 is slidably mounted on the slot 21. The bottom of the gantry loading frame 2 is slidably connected to the linear guide rails 16 on both sides of the bed 1. The two inner sides of the gantry loading frame 2 are provided with drive ports 23. The drive assembly 4 includes a drive cylinder 41 and an oil pipe 42. The thrust cylinder 43 and the drive cylinder 41 are fixedly connected in the drive port 23. The thrust cylinder 43 is installed in the hollow cavity 22 at the top of the gantry loading frame 2, which communicates with the slot 21. The oil pipe 42 is set in the hollow cavity 22 of the gantry loading frame 2. One end of the oil pipe 42 is connected to the drive cylinder 41, and the other end of the oil pipe 42 is connected to the thrust cylinder 43. The drive cylinder 41 includes a drive housing 411, a drive piston 412, a return spring 413, and a drive rod 414. The drive piston 412 is slidably connected inside the drive housing 411. One end of the drive rod 414 is fixedly connected to the drive piston 412, and the working end of the drive rod 414 passes through the drive housing 411. The drive rod 414 and the drive housing 411 are slidably connected. The return spring 413 is sleeved on the drive rod 414. One end of the return spring 413 is fixedly connected to the drive housing 411, and the other end of the return spring 413 is fixedly connected to the working end of the drive rod 414. The working end of the drive rod 414 is set as an inclined surface. The thrust cylinder 43 includes a thrust housing 431, a thrust piston 432, and a thrust rod 433. The thrust piston 432 is slidably connected inside the thrust housing 431. One end of the thrust rod 433 is fixedly connected to the thrust piston 432, and the working end of the thrust rod 433 passes through the thrust housing 431. The thrust rod 433 and the thrust housing 431 are slidably connected. The working end of the thrust rod 433 is provided with a protrusion that cooperates with the sliding groove 311.

[0038] Reference Figure 1 , Figure 4 and Figure 5The angle switching component 5 includes two sets of switching guide rails 51 and a slider device 52. The two sets of switching guide rails 51 are fixedly connected to both sides of the bed 1. The slider device 52 is slidably connected to the switching guide rails 51. The slider device 52 includes two sets of first sliders 521, second sliders 522 and third sliders 523. The two sets of first sliders 521 are respectively disposed at one end of the two sets of switching guide rails 51. The second slider 522 is disposed on the switching guide rail 51 on one side of the first slider 521. The end of the switching guide rail 51 away from the second slider 522 is provided with a first groove 511. The third slider 523 is disposed on the end of the other set of switching guide rails 51 away from the first slider 521. The end of the other set of switching guide rails 51 near the first slider 521 is provided with a second groove 512. One side of the first slider 521, the second slider 522 and the third slider 523 is provided with an inclined surface that cooperates with the drive rod 414. The top of the first slider 521, the second slider 522 and the third slider 523 is provided with a drive groove 524.

[0039] Reference Figure 2 and Figure 4 When the moving platform 15 starts, the drive rod 414 of one set of drive components 4 on the gantry loading frame 2 abuts against the drive groove 524 of the second slider 522. The thrust cylinder 43 of the drive component 4 causes the loading component 3 to generate a horizontal force applied to the hydrostatic guide rail 11. When the second slider 522 moves to the other end of the switching guide rail 51, the second slider 522 enters the first groove 511. Meanwhile, the drive rod 414 of another set of drive components 4 on the gantry loading frame 2 abuts against the drive groove 524 of the third slider 523. When the moving platform 15 returns, the thrust cylinder 43 of the other set of drive components 4 causes the loading component 3 to generate an opposite horizontal force applied to the hydrostatic guide rail 11. When the third slider 523 slides to the end near the first slider 521 through the switching guide rail 51 on the other side of the bed 1, the third slider 523 enters the second groove 512. At this time, the two sets of drive rods 414 are reset by the return spring 413, causing the thrust rod 433 to slide into the drive housing 411.

[0040] Reference Figure 3 , Figure 4 and Figure 5A push block 5121 is provided at the bottom of the second groove 512. The push block 5121 is slidably connected to the second groove. An unlocking component 6 is provided on the bed 1 on one side of the push block 5121. The unlocking component 6 includes a rotating rod 61 and a support rod 62. The rotating rod 61 is rotatably connected to the bed 1. A push rod 63 is provided at one end of the rotating rod 61, and a lever 64 is provided at the other end of the rotating rod 61. A sleeve 65 is provided at one end of the push block 5121. The sleeve 65 is rotatably connected to the push block 5121 and is fitted onto the push rod 63. One end of the support rod 62 is slidably connected to the second groove 5121. At the bottom of the moving cylinder body 31, one end of the support rod 62 abuts against the bottom of the pressurizing cylinder body 32. The push block 5121 drives the support rod 62 to slide through the rotating rod 61. When the third slider 523 slides into the second groove 512, the horizontal detection is completed. The drive assembly 4 pushes the push block 5121 through the third slider 523, so that the push block 5121 drives the rotating rod 61 to rotate through the sleeve 65. The rotation of the rotating rod 61 causes the lever 64 to push the support rod 62 away, so that the loading assembly 3 switches to longitudinal loading. The longitudinal loading test is completed in conjunction with the drive assembly 4 and the first slider 521.

[0041] The working principle of the multi-angle testing mechanism for hydrostatic sliding guide rail performance testing in this application is as follows: the bed 1 is an integral support frame, the hydrostatic guide rails 11 on both sides of the top of the bed 1 are the core sliding rails of the moving platform 15, the linear motor 17 between the two sets of hydrostatic guide rails 11 provides the reciprocating sliding power for the moving platform 15, the linear guide rails 16 on both sides of the bed 1 provide the following sliding rails for the gantry loading frame 2, the gantry loading frame 2 straddles the bed 1, the bottom of the gantry loading frame 2 is slidably connected to the linear guide rail 16, the loading component 3 is installed in the slot 21 at the top of the gantry loading frame 2, the drive components 4 on both sides of the gantry loading frame 2 are in a ready-to-trigger state, the drive rod 414 of the drive cylinder 41 is kept extended by the return spring 413, and the thrust cylinder 43... The push rod 433 is not under pressure, and the loading component 3 is not applying force. On the switching guide rails 51 on both sides of the bed 1, the slider devices 52 are distributed according to the preset arrangement. The two sets of first sliders 521 are located at one end of the switching guide rail 51, the second slider 522 is located on the side of a single set of switching guide rails 51 closer to the first slider 521, and the third slider 523 is located at the end of another set of switching guide rails 51 away from the first slider 521. The first groove 511 and the second groove 512 on the switching guide rail 51 are both in an empty state. In the unlocking component 6, one end of the support rod 62 abuts against the bottom of the pressure cylinder 32, restricting the vertical movement of the loading component 3. The linear motor 17 is energized, and the mover of the linear motor 17 drives the moving platform 15 to slide along the static pressure guide rail 11 towards the second slider 522. The pressurizing cylinder 32 of the loading assembly 3 is fixed to the moving platform 15. The moving platform 15 synchronously pulls the gantry loading frame 2 to slide along the linear guide rails 16 on both sides of the bed 1. During the sliding of the gantry loading frame 2, the drive rod 414 of the drive assembly 4 on the inner side of the gantry loading frame 2 near the second slider 522 abuts against the drive groove 524 of the second slider 522. As the gantry loading frame 2 continues to slide, the drive rod 414 is squeezed by the second slider 522 and retracts into the housing of the drive cylinder 41. When the drive rod 414 retracts, it compresses the oil in the drive cylinder 41. The oil flows through the oil pipe 42 to the thrust cylinder 43 in the same group. The oil pressure in the thrust cylinder 43 increases, pushing the thrust piston 432 and the thrust rod 433 to extend. The protrusion at the end of the thrust rod 433 and the slide... The moving groove 311 maintains a sliding fit, and the working end of the thrust rod 433 is embedded in the bearing groove 3112 of the sliding cylinder 31 of the loading assembly 3. The thrust rod 433 applies a horizontal thrust to the bearing groove 3112. Since the pressurizing cylinder 32 is fixed to the moving platform 15, the horizontal thrust is transmitted to the moving platform 15 through the pressurizing cylinder 32, and then to the static pressure guide rail 11 through the static pressure slider 14 at the bottom of the moving platform 15, realizing the performance test of the static pressure guide rail 11 under positive horizontal force. At the same time, the distance sensor 151 monitors the position of the moving platform 15 in real time. When the moving platform 15 slides to the end of its stroke, the second slider 522 moves with the gantry loading frame 2 and slides along the switching guide rail 51 to directly above the first groove 511. The second slider 522 slides into the first groove 511.After the second slider 522 disengages from the drive rod 414, the return spring 413 of the drive cylinder 41 releases its elastic force, pushing the drive rod 414 to extend and reset. The oil in the drive cylinder 41 flows back to the thrust cylinder 43, and the thrust rod 433 retracts. The positive horizontal force disappears. At this time, the moving platform 15 begins to slide towards the third slider 523 under the drive of the linear motor 17. The drive rod 414 of the drive assembly 4 on the side closer to the third slider 523 abuts against the drive groove 524 of the third slider 523. The drive rod 414 is squeezed back by the third slider 523. The process of the thrust cylinder 43 extending is repeated. The thrust rod 433 of the thrust cylinder 43 pushes the sliding cylinder body. The bearing groove 3112 of 31 is subjected to a reverse horizontal force. The reverse horizontal force is transmitted to the moving platform 15 through the pressure cylinder 32, and then to the static pressure guide rail 11 through the static pressure slider 14, realizing the performance test of the static pressure guide rail 11 under the reverse horizontal force. The moving platform 15 returns until the third slider 523 slides directly above the second groove 512. The third slider 523 slides into the second groove 512 and disengages from the drive rod 414. At the same time, during the sliding process, the third slider 523 presses the push block 5121 at the bottom of the second groove 512, causing the push block 5121 to slide along the bed 1. When the push block 5121 slides, the sleeve 65 set at the end of the push block 5121... The push rod 63 on the rotating rod 61 drives the rotating rod 61 to rotate around the axis of the bed 1. The lever 64 at the other end of the rotating rod 61 rotates synchronously, moving the support rod 62 away from the pressure cylinder 32. The support rod 62 originally abutted against the bottom of the pressure cylinder 32, restricting the sliding cylinder 31 from sliding. After the lever 64 moves, the support rod 62 disengages from the pressure cylinder 32, the vertical movement restriction of the loading component 3 is released, and the sliding cylinder 31 can slide along the pressure cylinder 32 after the support rod 62 disengages. At this time, the moving platform 15 continues to return, and the gantry loading frame 2 moves accordingly. The drive rods 414 of the drive components 4 on both sides of the gantry loading frame 2 and the drive grooves of the two sets of first sliders 521 are connected. When 524 is engaged, the drive rod 414 is compressed back, and the oil pushes the thrust rod 433 of the thrust cylinder 43 to extend. The thrust rod 433 no longer acts on the bearing groove 3112, but aligns with the inlet 3111 at the top of the sliding cylinder 31 through the sliding of the sliding cylinder 31. The thrust rod 433 continues to extend, pushing the pressure rods 34 on both sides of the pressure cylinder 32 to retract into the pressure cylinder 32. When the pressure rods 34 retract, they squeeze the oil in the pressure cylinder 32, and the oil pushes the loading rod 33 to extend downward. The loading rod 33 applies vertical pressure to the moving platform 15, and the pressure is transmitted to the static pressure guide rail 11 through the static pressure slider 14, realizing the performance test of the static pressure guide rail 11 under vertical force.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A multi-angle testing mechanism for testing the performance of a hydrostatic sliding block guide rail, comprising a bed (1), wherein hydrostatic guide rails (11) are respectively provided on both sides of the top of the bed (1), and side guide rails (12) are provided on the outer side of the hydrostatic guide rails (11), and pressure plates (13) are provided on the side guide rails (12), characterized in that: Multiple sets of static pressure sliders (14) are provided on the static pressure guide rail (11), and a moving platform (15) is provided on each set of static pressure sliders (14). The moving platform (15) is slidably connected to the static pressure guide rail (11) through the multiple sets of static pressure sliders (14). A distance sensor (151) is provided at one end of the moving platform (15). Linear guide rails (16) are provided on both sides of the bed (1). A gantry-shaped loading frame (2) is slidably provided on the two sets of linear guide rails (16). A loading component (3) is provided at the top center of the gantry-shaped loading frame (2). The loading component (3) has the freedom to move along the gantry loading frame (2). The working end of the loading component (3) is fixedly connected to the top of the moving platform (15). The gantry loading frame (2) is provided with drive components (4) on both sides inside. An angle switching component (5) is provided on the bed (1) above the linear guide rail (16). One end of the drive component (4) is provided on the loading component (3), and the other end of the drive component (4) is provided on the angle switching component (5). The angle switching component (5) drives the loading component (3) to slide through the drive component (4).

2. The multi-angle testing mechanism for hydrostatic slider type guide rail performance testing according to claim 1, characterized in that: The top middle part of the gantry loading frame (2) is provided with a longitudinal through slot (21). The gantry loading frame (2) is a hollow cavity (22). The slot (21) is connected to the hollow cavity (22). The bottom of the gantry loading frame (2) is slidably connected to the linear guide rails (16) on both sides of the bed (1). The two sides of the inner side of the gantry loading frame (2) are provided with drive ports (23).

3. The multi-angle testing mechanism for hydrostatic slider type guide rail performance testing according to claim 1, characterized in that: The loading assembly (3) includes a sliding cylinder (31), a pressurizing cylinder (32), a loading rod (33), and multiple sets of pressurizing rods (34). The pressurizing cylinder (32) has pressurizing ports (321) on both sides of its top. Multiple sets of pressurizing rods (34) are slidably connected within the pressurizing ports (321). One end of the loading rod (33) is located inside the pressurizing cylinder (32), and the other end of the loading rod (33) penetrates the bottom of the pressurizing cylinder (32). The loading rod (33) is slidably connected to the pressurizing cylinder (32). The sliding cylinder (31) has sliding grooves (311) on both sides of its top. The top of the sliding groove (311) has an inlet (3111) and the bottom of the sliding groove (311) has a bearing groove (3112). The bottom of the sliding cylinder (31) is fitted onto the loading cylinder. The sliding cylinder (31) is slidably connected to the pressurizing cylinder (32). After the sliding cylinder (31) slides, its upper inlet is aligned with the pressurizing rod (34). The two sides of the lower part of the pressurizing cylinder (32) are slidably connected to the slot (21).

4. The multi-angle testing mechanism for hydrostatic slider type guide rail performance testing according to claim 1, characterized in that: The drive assembly (4) includes a drive cylinder (41), an oil pipe (42), and a thrust cylinder (43). The drive cylinder (41) is fixedly connected to the drive port (23). The thrust cylinder (43) is installed in the hollow cavity (22) at the top of the gantry loading frame (2) and communicates with the slot (21). The oil pipe (42) is located in the hollow cavity (22) of the gantry loading frame (2). One end of the oil pipe (42) is connected to the drive cylinder (41), and the other end of the oil pipe (42) is connected to the thrust cylinder (43).

5. The multi-angle testing mechanism for hydrostatic slider type guide rail performance testing according to claim 4, characterized in that: The drive cylinder (41) includes a drive housing (411), a drive piston (412), a return spring (413), and a drive rod (414). The drive piston (412) is slidably connected inside the drive housing (411). One end of the drive rod (414) is fixedly connected to the drive piston (412), and the working end of the drive rod (414) passes through the drive housing (411). The drive rod (414) is slidably connected to the drive housing (411). The return spring (413) is sleeved on the drive rod (414). One end of the return spring (413) is fixedly connected to the drive housing (411), and the other end of the return spring (413) is fixedly connected to the working end of the drive rod (414). The working end of the drive rod (414) is set as an inclined surface.

6. The multi-angle testing mechanism for hydrostatic slider type guide rail performance testing according to claim 4, characterized in that: The thrust cylinder (43) includes a thrust housing (431), a thrust piston (432), and a thrust rod (433). The thrust piston (432) is slidably connected inside the thrust housing (431). One end of the thrust rod (433) is fixedly connected to the thrust piston (432). The working end of the thrust rod (433) passes through the thrust housing (431). The thrust rod (433) is slidably connected to the thrust housing (431). A protrusion that cooperates with the sliding groove (311) is provided on the working end of the thrust rod (433).

7. The multi-angle testing mechanism for hydrostatic slider type guide rail performance testing according to claim 1, characterized in that: The angle switching component (5) includes two sets of switching guide rails (51) and a slider device (52). The two sets of switching guide rails (51) are fixedly connected to both sides of the bed (1). The slider device (52) is slidably connected to the switching guide rails (51). The slider device (52) includes two sets of first sliders (521), second sliders (522) and third sliders (523). The two sets of first sliders (521) are respectively disposed at one end of the two sets of switching guide rails (51). The second slider (522) is disposed on the switching guide rail (51) on one side of the first slider (521). The end of the switching guide rail (51) away from the second slider (522) is provided with a first groove (511). The third slider (523) is disposed on the end of the other set of switching guide rails (51) away from the first slider (521). The end of the other set of switching guide rails (51) close to the first slider (521) is provided with a second groove (512).

8. The multi-angle testing mechanism for hydrostatic slider type guide rail performance testing according to claim 7, characterized in that: The first slider (521), the second slider (522), and the third slider (523) are all provided with an inclined surface on one side that cooperates with the drive rod (414), and the top of the first slider (521), the second slider (522), and the third slider (523) are all provided with a drive groove (524).

9. The multi-angle testing mechanism for hydrostatic slider type guide rail performance testing according to claim 7, characterized in that: A push block (5121) is provided at the bottom of the second groove (512), and the push block (5121) is slidably connected to the second groove. An unlocking component (6) is provided on the bed (1) on one side of the push block (5121). The unlocking component (6) includes a rotating rod (61) and a support rod (62). The rotating rod (61) is rotatably connected to the bed (1). A push rod (63) is provided at one end of the rotating rod (61), and a push rod (63) is provided at the other end of the rotating rod (61). There is a lever (64), and a sleeve (65) is provided at one end of the push block (5121). The sleeve (65) is rotatably connected to the push block (5121) and sleeved on the push rod (63). One end of the support rod (62) is slidably connected to the bottom of the sliding cylinder (31), and one end of the support rod (62) abuts against the bottom of the pressurizing cylinder (32). The push block (5121) drives the support rod (62) to slide through the rotating rod (61).

10. The multi-angle testing mechanism for hydrostatic slider type guide rail performance testing according to claim 1, characterized in that: The bed (1) between the two sets of hydrostatic guide rails (11) is provided with the stator of the linear motor (17), and the moving part of the linear motor (17) is provided in the middle of the moving platform (15). The linear motor (17) is used to drive the moving platform (15) to slide.

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