Guide rail assembly, machine tool and guide rail assembly control method

Abstract

The invention provides a guide rail assembly, a machine tool and a guide rail assembly control method. The guide rail assembly comprises a guide rail; the sliding block assembly comprises a sliding block, the sliding block is provided with a flow channel, and gas exhausted from the flow channel forms a gas film between the guide rail and the sliding block; the air supply device is communicated with the flow channel so as to supply air into the flow channel; the detection device is arranged between the guide rail and the sliding block and is used for detecting the thickness of the gas film; and / or the detection device is used for detecting an air pressure value between the guide rail and the sliding block; the adjusting assembly is used for adjusting at least one of the gas flow, the gas flow speed and the gas pressure of the gas entering the flow channel; and the control module is electrically connected with the detection device and the adjusting assembly, and when the detection value of the detection device exceeds the preset gas film thickness range and / or the preset gas pressure range, the control module controls the operation parameters of the adjusting assembly according to the detection value of the detection device. The problem that in the prior art, the stability of the thickness of an air film in an air floating sliding block system is poor is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of machine tools, and more particularly, to a guide rail assembly, a machine tool, and a control method for the guide rail assembly. Background Art

[0002] Currently, in the field of numerical control machine tool technology, especially for the application of air-bearing sliders on the Y-axis guide rail, traditional air-bearing technology has been widely adopted to reduce the frictional force during sliding and improve the moving accuracy and speed of the slider. Specifically, the air-bearing slider forms an air film between the slider and the guide rail to achieve non-contact relative movement between the two, thereby reducing the frictional resistance.

[0003] However, in the prior art, most air-bearing slider systems adopt preset static pressure control for the control of the air film thickness. This static control method is difficult to meet the high requirements for the stability of the air film during the precision machining process, especially when the load and speed change frequently. The stability of the air film directly affects the machining quality and the operating efficiency of the machine tool. Summary of the Invention

[0004] The main object of the present invention is to provide a guide rail assembly, a machine tool, and a control method for the guide rail assembly to solve the problem of poor stability of the air film thickness in the air-bearing slider system in the prior art.

[0005] To achieve the above object, according to one aspect of the present invention, there is provided a guide rail assembly, including: a guide rail; a slider assembly including a slider having a flow channel, and the gas discharged from the flow channel forms an air film between the guide rail and the slider; a gas supply device communicating with the flow channel to supply gas into the flow channel; a detection assembly disposed between the guide rail and the slider, the detection assembly being used to detect the thickness of the air film; and / or, the detection assembly is used to detect the air pressure value between the guide rail and the slider; an adjustment assembly for adjusting at least one of the gas flow rate, gas velocity, and air pressure of the gas entering the flow channel; a control module electrically connected to both the detection assembly and the adjustment assembly, and when the detection value of the detection assembly exceeds a preset air film thickness range and / or a preset air pressure range, the control module controls the operating parameters of the adjustment assembly according to the detection value of the detection assembly.

[0006] Further, the adjustment assembly includes: a pipeline, the gas supply device is connected to the flow channel through the pipeline; a control valve disposed on the pipeline; wherein, when the detection value of the detection assembly exceeds a preset air film thickness range and / or a preset air pressure range, the control module adjusts the operating parameters of the control valve according to the detection value of the detection assembly to adjust at least one of the gas flow rate, gas velocity, and air pressure in the pipeline through the control valve.

[0007] Further, the detection assembly includes: a first air pressure detection device for detecting the air pressure value within the air film formation region; wherein, there are multiple first air pressure detection devices, and the multiple first air pressure detection devices are arranged at intervals along the extension direction and / or the width direction of the slider.

[0008] Further, the detection assembly includes an eddy current sensor and a metal conductor disposed opposite to the eddy current sensor, with the metal conductor and the eddy current sensor located on both sides of the air film respectively to obtain the thickness of the air film based on the output value of the eddy current sensor; or, the detection assembly includes a laser displacement sensor, and the emitting end of the laser displacement sensor penetrates through the air film to detect the thickness of the air film.

[0009] Further, the slider further has a mounting hole communicating with the flow channel, and the slider assembly further includes: a throttling structure disposed within the mounting hole, the throttling structure having an exhaust channel, the flow channel communicating with the exhaust channel through the mounting hole; the exhaust port of the exhaust channel is located between the guide rail and the slider; wherein, the cross-sectional area s of the exhaust port is smaller than the cross-sectional area S1 of the flow channel; and / or, the aperture of the exhaust port is less than or equal to 0.1 mm and less than or equal to 0.2 mm.

[0010] According to another aspect of the present invention, there is provided a machine tool, including: a machine tool body; a guide rail assembly disposed on the machine tool body; a workbench disposed on the guide rail assembly; a load detection device disposed on the workbench for detecting the load value of the workbench; the load detection device is electrically connected to the control module of the guide rail assembly, and the control module adjusts at least one of the gas flow rate, gas velocity, and air pressure within the pipeline of the guide rail assembly according to the detection value of the load detection device; wherein, the guide rail assembly is the above-mentioned guide rail assembly.

[0011] According to another aspect of the present invention, there is provided a guide rail assembly control method applicable to the above-mentioned guide rail assembly, and the guide rail assembly control method includes: obtaining the target parameter of the air film of the guide rail assembly, the target parameter being used to characterize the thickness of the air film; in the case where the target parameter is not within the preset range, sending a control signal to the adjustment assembly to enable the adjustment assembly to adjust the relevant parameters of the gas within the guide rail assembly, so that the target parameter is within the preset range, wherein the relevant parameters are the parameters used to adjust the size of the target parameter of the air film.

[0012] Further, obtaining the target parameter of the air film of the guide rail assembly includes at least one of the following: receiving the air film thickness of the guide rail assembly sent by an eddy current sensor or a laser displacement sensor; receiving the air pressure value between the guide rail and the slider sent by the first air pressure detection device.

[0013] Further, the control method for the guide rail assembly further includes: when the target parameter is not within the preset range, sending a first control signal to the adjustment assembly to enable the adjustment assembly to adjust the relevant parameters of the gas in the guide rail assembly, including: when the target parameter is greater than or equal to the first preset value, sending a first control signal for reducing the relevant parameter to the control valve of the adjustment assembly; when the target parameter is less than or equal to the second preset value, sending a second control signal for increasing the relevant parameter to the control valve of the adjustment assembly; wherein, the target parameter includes at least one of the thickness of the air film and the air pressure value between the guide rail and the slider of the guide rail assembly, the relevant parameter includes at least one of the flow rate, flow velocity, and air pressure of the gas in the guide rail assembly, the first preset value is the maximum value of the preset range corresponding to the target parameter, and the second preset value is the minimum value of the preset range corresponding to the target parameter.

[0014] Further, when the target parameter is within the preset range, the control method for the guide rail assembly further includes: obtaining the environmental parameters in the environment where the guide rail assembly is located, the environmental parameters including at least one of temperature, humidity, and pressure; when the environmental parameters are not within the corresponding target parameter range, adjusting the gas parameters of the flow channel in the slider, the gas parameters including at least one of gas flow rate, gas flow velocity, and air pressure.

[0015] Applying the technical solution of the present invention, the guide rail assembly includes a guide rail, a slider assembly, a gas supply device, a detection assembly, an adjustment assembly, and a control module. The slider assembly includes a slider with a flow channel, and the gas discharged from the flow channel forms an air film between the guide rail and the slider. The gas supply device is connected to the flow channel to supply gas into the flow channel. The detection assembly is arranged between the guide rail and the slider, and the detection assembly is used to detect the thickness of the air film; and / or, the detection assembly is used to detect the air pressure value between the guide rail and the slider. The adjustment assembly is used to adjust at least one of the gas flow rate, gas flow velocity, and air pressure of the gas entering the flow channel. The control module is electrically connected to both the detection assembly and the adjustment assembly. When the detection value of the detection assembly exceeds the preset air film thickness range and / or the preset air pressure range, the control module controls the operating parameters of the adjustment assembly according to the detection value of the detection assembly. In this way, by real-time monitoring the thickness of the air film and the air pressure value between the guide rail and the slider, the control module can intelligently adjust the gas flow rate, flow velocity, and air pressure of the gas entering the flow channel according to the detection value, ensuring that the air film is always in the best state and put into use with a preset thickness, so as to adapt to different working requirements, improve the running accuracy of the slider assembly on the guide rail, reduce friction and vibration, and thus solve the problem of poor stability of the air film thickness in the air-floating slider system in the prior art, and improve the machining accuracy and stability of the entire machine tool. At the same time, the intelligent gas flow rate and air pressure adjustment mechanism can avoid excessive gas supply, reduce unnecessary energy consumption, and only provide the precise gas volume when needed, thereby achieving efficient and energy-saving operation and reducing the operating cost. Description of the Drawings

[0016] The accompanying drawings of the specification, which form a part of this application, are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 shows a top view of an embodiment of a machine tool according to the present invention;

[0018] Figure 2 shows Figure 1 a sectional view taken along line A-A of the machine tool in

[0019] Figure 3 shows Figure 1 a sectional view taken along line B-B of the machine tool in

[0020] Figure 4 shows Figure 1 a front view of the machine tool in

[0021] Figure 5 shows Figure 4 an enlarged schematic view at C of the machine tool in

[0022] Figure 6 shows Figure 4 an enlarged schematic view at D of the machine tool in

[0023] Figure 7 shows a top view of a slider of an embodiment of a guide rail assembly according to the present invention;

[0024] Figure 8 shows Figure 7 a sectional view taken along line E-E of the slider in

[0025] Figure 9 shows Figure 7 a side view of the slider in

[0026] Figure 10 shows Figure 3 a perspective view of the slider in

[0027] Figure 11 shows a three-dimensional structural schematic view of a guide rail of an embodiment of a guide rail assembly according to the present invention;

[0028] Figure 12 shows Figure 11 a front view of the guide rail in

[0029] Figure 13 shows a three-dimensional structural schematic view of a throttling structure of an embodiment of a guide rail assembly according to the present invention;

[0030] Figure 14 shows Figure 13 a top view of the throttling structure in

[0031] Figure 15 shows a Figure 13 side view of the throttling structure in

[0032] Figure 16 control flowchart of the first air pressure detection device or the second air pressure detection device according to an embodiment of the guide rail assembly control method of the present invention;

[0033] Figure 17 control flowchart of the temperature detection device according to an embodiment of the guide rail assembly control method of the present invention;

[0034] Figure 18 control flowchart of the humidity detection device according to an embodiment of the guide rail assembly control method of the present invention.

[0035] Wherein, the above-mentioned drawings include the following reference numerals:

[0036] 10, guide rail;

[0037] 20, slider assembly; 21, slider; 211, flow channel; 212, mounting hole; 213, sliding surface; 22, throttling structure; 221, exhaust passage; 2211, exhaust port; 2212, air inlet; 222, buffer chamber; 223, cylinder body; 224, baffle;

[0038] 30, machine tool body; 40, guide rail assembly; 50, workbench; 60, first air pressure detection device; 70, temperature detection device; 80, humidity detection device. Detailed Embodiment

[0039] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0040] It should be pointed out that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present application belongs.

[0041] In the present invention, unless otherwise stated, the orientation words such as "upper, lower" are usually in the direction shown in the drawings, or in the vertical, perpendicular or gravitational direction; similarly, for the convenience of understanding and description, "left, right" are usually left and right as shown in the drawings; "inside, outside" refer to the inside and outside relative to the contour of each component itself, but the above orientation words do not limit the present invention.

[0042] To solve the problem of poor stability of the air film thickness in the air floating slider system in the prior art, the present application provides a guide rail assembly, a machine tool, and a control method for the guide rail assembly.

[0043] As Figures 1 to 15 shown, the guide rail assembly includes a guide rail 10, a slider assembly 20, a gas supply device, a detection assembly, an adjustment assembly, and a control module. The slider assembly 20 includes a slider 21, and the slider 21 has a flow channel 211. The gas discharged from the flow channel 211 forms an air film between the guide rail 10 and the slider 21. The gas supply device is communicated with the flow channel 211 to supply gas into the flow channel 211. The detection assembly is arranged between the guide rail 10 and the slider 21, and the detection assembly is used to detect the thickness of the air film and the air pressure value between the guide rail 10 and the slider 21. The adjustment assembly is used to adjust at least one of the gas flow rate, gas velocity, and air pressure of the gas entering the flow channel 211. The control module is electrically connected to both the detection assembly and the adjustment assembly. When the detection value of the detection assembly exceeds the preset air film thickness range and the preset air pressure range, the control module controls the operating parameters of the adjustment assembly according to the detection value of the detection assembly.

[0044] Applying the technical solution of this embodiment, by real-time monitoring the thickness of the air film and the air pressure value between the guide rail 10 and the slider 21, the control module can intelligently adjust the gas flow rate, flow velocity, and air pressure of the gas entering the flow channel 211 according to the detection value, ensuring that the air film is always in the best state and put into use with a preset thickness, so as to adapt to different working requirements, improve the running accuracy of the slider assembly 20 on the guide rail 10, reduce friction and vibration, and thus solve the problem of poor stability of the air film thickness in the air floating slider system in the prior art, and improve the machining accuracy and stability of the entire machine tool. At the same time, the intelligent gas flow rate and air pressure adjustment mechanism can avoid excessive gas supply, reduce unnecessary energy consumption, and only provide the accurate gas volume when needed, thereby realizing efficient and energy-saving operation and reducing the operating cost.

[0045] In other embodiments not shown in the drawings, the detection assembly is only used to detect the thickness of the air film. When the detection value of the detection assembly exceeds the preset air film thickness range, the control module controls the operating parameters of the adjustment assembly according to the detection value of the detection assembly.

[0046] In other embodiments not shown in the drawings, the detection assembly is only used to detect the air pressure value between the guide rail 10 and the slider 21. When the detection value of the detection assembly exceeds the preset air pressure range, the control module controls the operating parameters of the adjustment assembly according to the detection value of the detection assembly.

[0047] In this embodiment, the adjustment component includes a pipeline and a control valve. The gas supply device is connected to the flow channel 211 through the pipeline, and the control valve is arranged on the pipeline. Among them, when the detection value of the detection component exceeds the preset air film thickness range and / or the preset air pressure range, the control module adjusts the operating parameters of the control valve according to the detection value of the detection component, so as to adjust at least one of the gas flow rate, gas velocity, and air pressure in the pipeline through the control valve. In this way, the gas flow rate or velocity entering the flow channel 211 is accurately adjusted by the control valve, ensuring the stability of the air film thickness, the smoothness and accuracy of the movement of the slider 21 on the guide rail 10, and adapting to different load and speed requirements. At the same time, by controlling the gas supply through the control valve, unnecessary gas waste can be reduced, and accurate management of energy consumption can be achieved. Especially when operating at light load or low speed, appropriately reducing the gas flow rate can effectively save energy; while in high-precision machining or high-speed movement, the control valve can respond quickly to ensure sufficient gas supply and maintain the stability of the air film.

[0048] As Figure 10 shown, the slider 21 further has a mounting hole 212 communicating with the flow channel 211, and the slider assembly 20 further includes a throttling structure 22. Among them, the throttling structure 22 is arranged in the mounting hole 212, the throttling structure 22 has an exhaust channel 221, and the flow channel 211 is communicated with the exhaust channel 221 through the mounting hole 212; the exhaust port 2211 of the exhaust channel 221 is located between the guide rail 10 and the slider 21. In this way, the above arrangement of the throttling structure 22 enables the gas to be evenly and accurately distributed in the air film layer formed between the guide rail 10 and the slider 21. By adjusting the size and shape of the exhaust channel 221, the gas discharge rate and distribution pattern can be effectively controlled, thereby optimizing the stability and load-bearing capacity of the air film. At the same time, the control module can more accurately adjust the thickness of the air film; when the air film thickness needs to be increased, the gas flow rate of the throttling structure 22 can be increased through the control module, and vice versa.

[0049] In this embodiment, the throttling structure 22 can dynamically adjust the air flow according to the changes in load and speed to adapt to different working conditions and ensure the stability of the air film and the smooth movement of the slider.

[0050] Optionally, the slider 21 is made of high-strength aluminum alloy material to reduce weight and improve wear resistance.

[0051] In this embodiment, the slider assembly 20 compresses the high-pressure gas through the throttling structure 22 to form a layer of air film with stiffness, so that the slider 21 can move quickly. At the same time, since there is no friction in the air, the generation of frictional heat is reduced, further expanding the application range of the slider assembly 20 and extending the service life of the guide rail assembly.

[0052] In this embodiment, the throttling structure 22 is embedded in the slider 21 to ensure a tight fit between the slider assembly 20 and the guide rail 10 and reduce gas leakage.

[0053] In this embodiment, high-pressure gas with a certain pressure flows through the flow channel 211 and passes through the throttling structure 22 to generate a certain pressure drop, and then gradually stabilizes and decreases to the ambient pressure of 0.1 MPa at the exhaust port 2211. At this time, a pressure gas film with a certain stiffness is formed between the sliding surface 213 of the slider 21 and the bearing surface of the guide rail 10.

[0054] Optionally, the throttling structure 22 is bonded or welded to the mounting hole 212.

[0055] In this embodiment, the extending direction of the flow channel 211 is the same as the extending direction of the slider 21, and the flow channel 211 penetrates at least one end of the slider 21; the extending direction of the mounting hole 212 is set at an angle with the extending direction of the flow channel 211. In this way, the extending direction of the flow channel 211 is the same as that of the slider 21, which can ensure the uniform distribution of gas along the length direction of the slider, and further ensure that stable gas supply can be obtained regardless of the position of the slider 21 on the guide rail 10, so as to form a uniform gas film, ensuring the smooth movement and accuracy of the slider 21. At the same time, the above design optimizes the gas distribution and the gas film formation mechanism, not only improving the working performance and reliability of the guide rail assembly, but also reducing the processing cost and processing difficulty of the slider 21.

[0056] In this embodiment, the flow channel 211 penetrates both ends of the slider 21, making the processing of the flow channel 211 easier and simpler, and reducing the processing cost and processing difficulty. The extending direction of the mounting hole 212 is set at an angle with the extending direction of the flow channel 211 to ensure that the gas entering the throttling structure 22 through the flow channel 211 can smoothly flow between the slider 21 and the guide rail 10 to form a more stable and more conforming gas film, thereby improving the control accuracy and dynamic response ability of the slider 21 during high-speed movement.

[0057] Optionally, the extending direction of the mounting hole 212 is perpendicular to the extending direction of the flow channel 211.

[0058] Optionally, the cross-sectional area s of the exhaust port 2211 is smaller than the cross-sectional area S1 of the flow channel 211; and / or, the aperture diameter of the exhaust port 2211 is less than or equal to 0.1 mm and less than or equal to 0.2 mm. In this way, by making the cross-sectional area s of the exhaust port 2211 smaller than the cross-sectional area S1 of the flow channel 211, the throttling effect of the throttling structure 22 on the high-pressure gas is achieved, and then a high-pressure gas film is formed between the slider 21 and the guide rail 10; at the same time, the design of the smaller cross-sectional area and aperture diameter of the exhaust port can achieve fine control of the gas discharge amount, and then form a stable gas film. In addition, by restricting the gas flow rate, a uniform gas film can be established between the guide rail 10 and the slider 21, effectively reducing the friction during the sliding process and improving the running accuracy and stability of the slider 21.

[0059] Optionally, the throttling structure 22 has a buffer chamber 222, and the mounting hole 212 is communicated with the air inlet of the exhaust passage 221 through the buffer chamber 222; the cross-sectional area S2 of the buffer chamber 222, the cross-sectional area s of the exhaust port 2211, and the cross-sectional area S1 of the flow channel 211 satisfy: s < S2 < S1. In this way, the above setting of the buffer chamber 222 enables the gas pressure from the flow channel 211 to the exhaust passage 221 to transition smoothly, that is, the larger cross-sectional area S1 in the flow channel 211 ensures sufficient gas supply and pressure, and through entering the buffer chamber 222 with a smaller cross-sectional area S2, the gas pressure is preliminarily adjusted to prepare for subsequent entry into the exhaust port 2211 with an even smaller cross-sectional area s, avoiding drastic changes in pressure and improving the stability and control accuracy of the system.

[0060] In this embodiment, when the gas flows from the flow channel 211 to the exhaust port 2211, its cross-sectional area gradually decreases (S1 > S2 > s), and this process realizes the gradual throttling of the gas. The above setting of the throttling structure 22 can precisely control the gas flow rate, ensure the formation and stability of the gas film, also make the gas discharge more uniform, reduce the pressure fluctuation in the gas film, and enhance the smoothness of the slider movement. At the same time, through multi-stage throttling control, the guide rail assembly can maintain the stability of the gas film with lower energy consumption, avoiding energy waste caused by excessive gas supply, and the above setting of the buffer chamber 222 can also reduce the eddy current and noise during the high-speed flow of the gas, creating better silent conditions for the working environment.

[0061] Specifically, the above settings among the cross-sectional area S2 of the buffer cavity 222, the cross-sectional area s of the exhaust port 2211, and the cross-sectional area S1 of the flow channel 211 can achieve the double throttling effect of high-pressure gas. First, the high-pressure gas flows into the throttling structure 22 through the flow channel 211 to achieve the first throttling. This step is mainly to reduce the gas pressure and prepare for subsequent precise control. Subsequently, the gas achieves the second throttling through the exhaust channel 221. This step is the key to forming the high-pressure gas film. By precisely controlling the aperture of the exhaust channel 221, the pressure and thickness of the gas film can be precisely adjusted.

[0062] As Figure 2 shown, the detection assembly includes a first air pressure detection device 60, and the first air pressure detection device 60 is used to detect the air pressure value within the gas film formation area. Among them, there are multiple first air pressure detection devices 60, and the multiple first air pressure detection devices 60 are arranged at intervals along the extension direction and / or the width direction of the slider 21. In this way, the distribution of the multiple first air pressure detection devices 60 enables the guide rail assembly to comprehensively monitor the air pressure values of the gas film at different positions, avoiding the problem of local deviation that may exist through only a single detection point. At the same time, based on the analysis of the multi-point air pressure values, the control module can implement more precise gas flow and air pressure adjustments to ensure that the gas film remains uniform and stable within the entire movement range of the slider, improving the smoothness and accuracy of the operation of the slider assembly 20.

[0063] Optionally, the first air pressure detection device 60 is a pressure sensor.

[0064] In this embodiment, the detection assembly includes an eddy current sensor and a metal conductor. The metal conductor is arranged opposite to the eddy current sensor, and the metal conductor and the eddy current sensor are respectively located on both sides of the gas film. Among them, the thickness of the gas film is related to the output value of the eddy current sensor, so as to obtain the thickness of the gas film according to the output value of the eddy current sensor. In this way, the eddy current sensor can monitor the change of the gas film in real time and immediately output the corresponding value, so that the control module can receive the information of the gas film thickness in time and make adjustments quickly to ensure that the gas film always maintains the optimal state and avoid the performance degradation caused by the hysteresis effect. Among them, if the current value of the eddy current sensor becomes larger, it means that the acting force increases and the corresponding gas film becomes thicker; if the current value of the eddy current sensor becomes smaller, it means that the acting force decreases and the corresponding gas film becomes thinner.

[0065] Specifically, by analyzing the output value of the eddy current sensor, the control module can use various control algorithms such as PID control to dynamically adjust the air pressure of the air supply device to meet the requirements of the gas film thickness under different loads and speeds, thereby optimizing the operation efficiency of the slider assembly 20.

[0066] In other embodiments not shown in the drawings, the detection component includes a laser displacement sensor, and the emitting end of the laser displacement sensor passes through the air film. Wherein, the thickness of the air film is related to the output value of the laser displacement sensor, and the thickness of the air film is obtained according to the output value of the laser displacement sensor. In this way, when the laser displacement sensor works, the laser beam emitted by its emitting end passes through the air film and reaches the opposite reflecting surface, and then the thickness of the air film is calculated according to the time difference of the reflected light or other optical principles such as phase difference and triangulation method. Among them, since this method is non-contact, it avoids the disturbance that may be introduced by physical contact, ensures high-precision measurement, and is especially suitable for the application of numerically controlled machine tools with extremely high precision requirements.

[0067] Optionally, the guide rail assembly further includes a display screen, and the display screen is connected to the detection component for displaying the thickness of the air film; and / or, the display screen is connected to the control valve for displaying at least one of the gas flow rate, gas velocity, and air pressure in the pipeline. In this way, the above settings of the display screen make the system parameters intuitively visible. The operator can directly observe the air film thickness, gas flow situation, and air pressure level without going through complex instrument panels or indirect data calculations, improving the transparency and readability of information. At the same time, the display screen can not only display data in real time but also record historical data, and perform data analysis through built-in software or connecting to external devices, helping engineers understand the long-term operation trend of the system, evaluate performance, and provide a basis for optimizing operation parameters and improving the design.

[0068] In this embodiment, the guide rail assembly further includes a display screen, and the display screen is connected to both the detection component and the control valve for displaying the thickness of the air film and at least one of the gas flow rate, gas velocity, and air pressure in the pipeline. In this way, by displaying the air film thickness in real time, the operator can immediately identify whether the air film is in an ideal state. If the thickness deviates, measures can be quickly taken to adjust, such as manual intervention or adjusting the control valve through the human-machine interface, to ensure the stability of the air film, thereby improving the machining accuracy and efficiency of the numerically controlled machine tool. At the same time, the gas flow rate, velocity, and air pressure data displayed on the display screen can help maintenance personnel with preventive maintenance. When these parameters exceed the normal range, it may be a signal of potential problems in the equipment, such as blockage or leakage in the gas supply system, so as to detect problems in advance and repair them in time, reducing unexpected downtime and production losses.

[0069] Optionally, the guide rail assembly further includes a temperature detection device 70, which is electrically connected to the control module for detecting the temperature value in the environment where the guide rail assembly is located. When the detected value of the temperature detection device 70 is greater than or equal to the first preset temperature value, at least one of the gas flow rate, gas velocity, and air pressure in the pipeline is reduced through the control valve. When the detected value of the temperature detection device 70 is less than the second preset temperature value, at least one of the gas flow rate, gas velocity, and air pressure in the pipeline is increased through the control valve. And / or, the guide rail assembly further includes a humidity detection device 80, which is electrically connected to the control module for detecting the humidity value in the environment where the guide rail assembly is located. When the detected value of the humidity detection device 80 is greater than or equal to the first preset humidity value, at least one of the gas flow rate, gas velocity, and air pressure in the pipeline is increased through the control valve. When the detected value of the humidity detection device 80 is less than the second preset humidity value, at least one of the gas flow rate, gas velocity, and air pressure in the pipeline is reduced through the control valve. And / or, the guide rail assembly further includes a second air pressure detection device, which is electrically connected to the control module for detecting the pressure value in the environment where the guide rail assembly is located. When the detected value of the second air pressure detection device is greater than or equal to the first preset pressure value, at least one of the gas flow rate, gas velocity, and air pressure in the pipeline is increased through the control valve. When the detected value of the second air pressure detection device is less than the second preset pressure value, at least one of the gas flow rate, gas velocity, and air pressure in the pipeline is reduced through the control valve. In this way, temperature changes will affect air density and viscosity, and thus affect the thickness and stability of the air film. By monitoring the ambient temperature in real time through the temperature detection device 70, the control module can automatically adjust the gas supply parameters according to the temperature change to achieve temperature compensation, keep the air film in the best working state, and improve the sliding accuracy and stability of the slider assembly 20 on the guide rail 10. Humidity changes will affect the density and viscosity of air, and thus affect the formation and stability of the air film. By monitoring the ambient humidity in real time through the humidity detection device 80, the control module can timely adjust the gas parameters to ensure that the air film can still reach an ideal state under different humidity conditions, improving the adaptability of the air bearing slider system to the working environment. At the same time, by monitoring the ambient pressure in real time through the second air pressure detection device, the control module can automatically adjust the gas parameters according to the change to ensure that the air film remains stable under different pressure conditions, improving the accuracy and reliability of slider movement.

[0070] In this embodiment, the guide rail assembly further includes a temperature detection device 70. In a high-temperature environment, the expansion effect of air may naturally increase the air film thickness. At this time, by reducing the gas flow rate and air pressure through the control valve, excessive air supply can be avoided, and energy consumption can be reduced. In a low-temperature environment, air contraction may require more gas to maintain the ideal air film thickness. At this time, increasing the gas flow rate and air pressure can effectively supplement the gas, achieving an energy-saving and efficient operation mode. Among them, when the temperature rises, the thermal expansion of the gas may cause a slight increase in the air film thickness. At this time, it is necessary to appropriately reduce the air pressure to maintain the stability of the air film thickness. Conversely, when the temperature drops, the air pressure needs to be appropriately increased. For example, when the temperature rises by 1 °C, the air pressure is reduced by 0.01 MPa; when the temperature drops by 1 °C, the air pressure is increased by 0.01 MPa.

[0071] Optionally, the temperature detection device 70 is a temperature sensor.

[0072] In this embodiment, the guide rail assembly further includes a humidity detection device 80. In a high-humidity environment, the water content of the air increases, which may cause the air film thickness to decrease or become uneven, affecting the smooth sliding of the slider 21. By increasing the gas flow rate, flow velocity, and air pressure, the negative impact brought by humidity can be overcome, ensuring the stability of the air film thickness and improving the processing accuracy. Among them, when the humidity increases, the air viscosity increases, and it is necessary to appropriately increase the air pressure to maintain the stability and thickness of the air film. When the humidity decreases, the air pressure can be appropriately reduced. For example, when the humidity increases by 10%, the air pressure is increased by 0.005 MPa; when the humidity decreases by 10%, the air pressure is reduced by 0.005 MPa.

[0073] Optionally, the humidity detection device 80 is a humidity sensor.

[0074] In this embodiment, the guide rail assembly further includes a second air pressure detection device. Under high ambient pressure, in order to maintain the air film thickness and the buoyancy of the slider, the control module provides additional gas support by increasing the gas flow rate, flow velocity, and internal air pressure to offset the influence of the external pressure. Under low ambient pressure, the gas supply can be appropriately reduced to save energy and prevent unnecessary friction or energy waste caused by an overly thick air film. Among them, if the external air pressure decreases, the air supply pressure can be appropriately reduced. The adjustment range can be determined according to the actual working requirements and system characteristics, and usually can be adjusted according to a certain proportion of the change in the external air pressure. For example, when the external air pressure increases by 0.01 MPa, the system air supply pressure increases by 0.005 MPa; when the external air pressure decreases by 0.01 MPa, the system air supply pressure decreases by 0.005 MPa.

[0075] Optionally, the second air pressure detection device is a pressure sensor.

[0076] Such as Figures 13 to 15As shown, the throttling structure 22 includes a cylinder body 223 and a baffle 224. The baffle 224 is disposed at the first end of the cylinder body 223 to form a buffer cavity 222 with the cylinder body 223. Among them, the exhaust passage 221 is provided on the baffle 224 and penetrates through two plate surfaces of the baffle 224. In this way, the baffle 224 and the cylinder body 223 jointly form the buffer cavity 222, which can effectively throttle the gas and evenly distribute the gas to the exhaust passage 221 at the same time. After the gas enters the buffer cavity 222, the pressure is initially regulated, which helps to form a stable and uniform gas film to ensure the smooth movement of the slider 21 on the guide rail 10. At the same time, the exhaust passage 221 is provided on the baffle 224, which can more precisely control the path of the gas flowing from the buffer cavity 222 to the exhaust port 2211, making the gas flow more orderly, reducing turbulence and pressure fluctuations, enhancing the stability of the gas film, and improving the dynamic response ability and positioning accuracy of the slider 21.

[0077] Optionally, the cylinder body 223 and the baffle 224 are connected by welding.

[0078] As Figure 9 shown, the slider 21 has a sliding surface 213 facing the guide rail 10 for cooperating with the guide rail 10, and the mounting hole 212 penetrates through the sliding surface 213; among them, the baffle 224 is flush with the sliding surface 213. In this way, the baffle 224 is flush with the sliding surface 213, ensuring that the gas discharged from the exhaust port 2211 can directly act on the surface of the guide rail 10 to form a uniform and closely fitting gas film, which is beneficial to the low-friction and high-precision movement of the slider 21 on the guide rail 10, thereby improving the operating efficiency and machining accuracy of the guide rail assembly.

[0079] Optionally, there are multiple flow channels 211. The multiple flow channels 211 are arranged at intervals around the guide rail 10. Each flow channel 211 communicates with multiple mounting holes 212, and the multiple mounting holes 212 are arranged at intervals along the extending direction of the flow channel 211. In this way, the arrangement of the multiple flow channels 211 can ensure the uniform supply of gas from different directions, and then realize the uniform distribution of the gas film under the entire slider 21, ensuring the smooth operation and high-precision positioning of the slider 21. At the same time, the flow channels 211 are arranged at intervals around the guide rail 10, and the mounting holes 212 are arranged at intervals along the extending direction of the flow channel, which is beneficial to forming a more stable and wider coverage gas film. Even in the case of load changes or slider speed adjustments, this distribution can reduce the fluctuations of local gas pressure and maintain the continuity and stability of the gas film.

[0080] In this embodiment, each flow channel 211 is independently connected to a set of mounting holes 212, so that the gas supply amount of each flow channel 211 can be independently adjusted according to actual needs, improving the dynamic response speed and flexibility of the system. At the same time, the design of multiple flow channels 211 and multiple mounting holes 212 allows the state of each flow channel to be inspected and adjusted separately during maintenance without disassembling the entire slider. This not only enables quick location of the fault point but also allows targeted maintenance or replacement, reducing downtime and maintenance costs.

[0081] In this embodiment, there are multiple throttling structures 22, and the multiple throttling structures 22 are arranged in one-to-one correspondence with the multiple mounting holes 212. Each throttling structure 22 is responsible for a part of the region of the guide rail 10 to ensure the uniform distribution and stability of the air film.

[0082] Specifically, the spaced arrangement of the multiple flow channels 211 also helps to improve the heat dissipation inside the slider 21, avoiding the problem of heat accumulation that may occur in a single long flow channel.

[0083] Optionally, the guide rail assembly further includes a first sealing structure disposed between the second end of the cylinder body 223 and the hole wall of the mounting hole 212; and / or, the guide rail assembly further includes a second sealing structure disposed between the outer peripheral surface of the cylinder body 223 and the hole wall of the mounting hole 212. In this way, the setting of the first sealing structure and / or the second sealing structure enhances the airtightness between the slider 21 and the guide rail 10, effectively preventing gas from leaking between the throttling structure 22 and the slider 21 to maintain the stability and thickness of the air film, thereby ensuring low friction and high-precision movement of the slider on the guide rail. At the same time, the above setting of the sealing structure prevents external impurities from entering the guide rail assembly, avoiding the instability of the air film caused by contaminants such as dust or oil stains.

[0084] In this embodiment, the guide rail assembly further includes a first sealing structure and a second sealing structure. The first sealing structure is disposed between the second end of the cylinder body 223 and the hole wall of the mounting hole 212, and the second sealing structure is disposed between the outer peripheral surface of the cylinder body 223 and the hole wall of the mounting hole 212.

[0085] Optionally, the throttling structure 22 is made of copper material; and / or, there is one exhaust passage 221; or, there are multiple exhaust passages 221, and the multiple exhaust passages 221 are arranged at intervals along the length direction and / or the width direction of the throttling structure 22. In this way, the copper material has good heat conduction performance, can effectively dissipate heat, and avoid heat accumulation caused by gas compression during throttling, resulting in performance degradation or structural damage. Moreover, the corrosion resistance of copper ensures the long-term stable operation of the throttling structure 22 in a gas environment and extends its service life. At the same time, when there are multiple exhaust passages 221 and they are arranged at intervals along the length direction and / or the width direction of the throttling structure 22, it can ensure uniform gas supply from all directions, form a stable and wide-coverage gas film, which is beneficial to reducing local friction during slider movement and improving the smoothness and accuracy of operation.

[0086] In this embodiment, the throttling structure 22 is made of copper material. There are multiple exhaust passages 221, and the multiple exhaust passages 221 are arranged at intervals along the length direction and / or the width direction of the throttling structure 22. In this way, the mechanical strength and toughness of the throttling structure 22 supported by the copper material are moderate, and it can withstand the action of high-pressure gas without being easily deformed or damaged, ensuring the dimensional stability and accuracy of the throttling structure 22, so as to maintain the uniformity and stability of the gas film. The above arrangement of the multiple exhaust passages 221 enables the guide rail assembly to respond faster to load or speed changes. By independently adjusting the gas flow rate of each exhaust passage 221, the thickness and pressure of the gas film can be quickly adjusted, improving the dynamic performance.

[0087] In other embodiments not shown in the drawings, along the direction from the air inlet 2212 to the air outlet 2211 of the exhaust passage 221, the cross-sectional area of the exhaust passage 221 gradually decreases. In this way, as the cross-sectional area gradually decreases, the gas will experience gradual compression when passing through the exhaust passage 221, resulting in an increasing trend of the gas pressure in the passage from the air inlet to the air outlet. The establishment of this pressure gradient helps to form a stable and pressurized gas film under the slider, thereby reducing the contact between the slider and the guide rail and achieving low-friction movement.

[0088] As Figures 1 to 6 shown, the present application also provides a machine tool, including a machine tool body 30, a guide rail assembly 40, a workbench 50, and a load detection device. The guide rail assembly 40 is arranged on the machine tool body 30. The workbench 50 is arranged on the guide rail assembly 40, and the load detection device is arranged on the workbench 50 for detecting the load value of the workbench 50; the load detection device is electrically connected to the control module of the guide rail assembly 40, and the control module adjusts at least one of the gas flow rate, gas flow velocity, and gas pressure in the pipeline of the guide rail assembly 40 according to the detection value of the load detection device. Among them, the guide rail assembly 40 is the above-mentioned guide rail assembly.

[0089] Specifically, the above settings of the detection device can monitor the load value of the workbench 50 in real time. By feeding back the detection results to the control module, the machine tool can automatically adjust the control valve to change the gas flow rate or velocity to adapt to different load conditions of the workbench, ensuring the stability of the air film and the smooth movement of the slider, and improving the machining accuracy and efficiency. At the same time, the electrical connection between the control module, the detection device, and the control valve forms a closed-loop control system, which can quickly respond to load changes, timely adjust the gas supply, reduce the instability of the slider operation caused by load changes, and enhance the dynamic response ability and control accuracy of the machine tool.

[0090] In this embodiment, adjusting the gas flow rate or velocity according to the real-time load avoids unnecessary gas supply and realizes the efficient utilization of energy. At low loads, gas consumption is reduced to achieve the purpose of energy conservation and emission reduction; while at high loads, sufficient gas supply is ensured to maintain the stable operation of the system. At the same time, through intelligent detection, dynamic adjustment, and integrated control, the machine tool has been comprehensively improved in terms of load adaptability, energy consumption management, fault warning, operation automation, etc.

[0091] Optionally, the machine tool further includes a server and a terminal device. Among them, the control module is connected to the server through a wireless communication device, and the terminal device is used to send control signals to the control module. In this way, through the server and wireless communication, the operator can remotely view the operating status of the machine tool through the terminal device (such as a smartphone, tablet computer, or dedicated control panel), including but not limited to parameters such as air film thickness, gas flow rate, velocity, air pressure, ambient temperature, and humidity. The above remote monitoring ability greatly improves the flexibility and efficiency of management. At the same time, the operator can conveniently adjust the parameters of the control module through the terminal device, such as preset temperature, humidity, pressure thresholds, air film thickness adjustment strategies, etc., without being on-site, simplifying the operation process and improving work efficiency.

[0092] As Figures 16 to 18 shown, the present application also provides a control method for a guide rail assembly, which is applicable to the above-mentioned guide rail assembly. The control method for the guide rail assembly includes:

[0093] Obtain the target parameters of the air film of the guide rail assembly, where the target parameters are used to characterize the thickness of the air film;

[0094] In the case where the target parameters are not within the preset range, send a control signal to the adjustment component to enable the adjustment component to adjust the relevant parameters of the gas in the guide rail assembly, so that the target parameters are within the preset range, where the relevant parameters are the parameters used to adjust the size of the target parameters of the air film.

[0095] Specifically, by continuously detecting and automatically adjusting the air film thickness and air pressure, the influence of air film instability on the movement trajectory of the slider 21 is largely eliminated, thereby improving the moving accuracy of the slider 21 on the guide rail 10. At the same time, the above settings ensure the precise matching and optimization of the air supply volume, avoid the situation of excessive air supply or insufficient air supply, and thus reduce the energy consumption.

[0096] In this embodiment, obtaining the target parameters of the air film of the guide rail assembly includes at least one of the following:

[0097] Receiving the air film thickness of the guide rail assembly sent by an eddy current sensor or a laser displacement sensor;

[0098] Receiving the air pressure value between the guide rail and the slider sent by the first air pressure detection device.

[0099] In this embodiment, the guide rail assembly control method further includes:

[0100] When the target parameter is not within the preset range, sending a control signal to the adjustment assembly to enable the adjustment assembly to adjust the relevant parameters of the gas in the guide rail assembly, including:

[0101] When the target parameter is greater than or equal to the first preset value, sending a first control signal for reducing the relevant parameter to the control valve of the adjustment assembly;

[0102] When the target parameter is less than or equal to the second preset value, sending a second control signal for increasing the relevant parameter to the control valve of the adjustment assembly; wherein, the target parameter includes at least one of the thickness of the air film and the air pressure value between the guide rail and the slider of the guide rail assembly, the relevant parameter includes at least one of the flow rate, flow velocity, and air pressure of the gas in the guide rail assembly, the first preset value is the maximum value of the preset range corresponding to the target parameter, and the second preset value is the minimum value of the preset range corresponding to the target parameter.

[0103] In this embodiment, when the target parameter is within the preset range, the guide rail assembly control method further includes:

[0104] Obtaining the environmental parameters in the environment where the guide rail assembly is located, and the environmental parameters include at least one of temperature, humidity, and pressure;

[0105] When the environmental parameter is not within the corresponding target parameter range, adjusting the gas parameters of the flow channel in the slider, and the gas parameters include at least one of gas flow rate, gas flow velocity, and air pressure.

[0106] Specifically, obtain the temperature value in the environment where the guide rail assembly is located. When the temperature value is greater than or equal to the first preset temperature value, reduce at least one of the gas flow rate, gas velocity, and air pressure in the flow channel 211; when the temperature value is less than the second preset temperature value, increase at least one of the gas flow rate, gas velocity, and air pressure in the flow channel 211; and / or,

[0107] Obtain the humidity value in the environment where the guide rail assembly is located. When the humidity value is greater than or equal to the first preset humidity value, increase at least one of the gas flow rate, gas velocity, and air pressure in the flow channel 211; when the humidity value is less than the second preset humidity value, reduce at least one of the gas flow rate, gas velocity, and air pressure in the flow channel 211; and / or,

[0108] Obtain the pressure value in the environment where the guide rail assembly is located. When the pressure value is greater than or equal to the first preset pressure value, increase at least one of the gas flow rate, gas velocity, and air pressure in the flow channel 211; when the pressure value is less than the second preset pressure value, reduce at least one of the gas flow rate, gas velocity, and air pressure in the flow channel 211.

[0109] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0110] The guide rail assembly includes a guide rail, a slider assembly, a gas supply device, a detection device, an adjustment assembly, and a control module. The slider assembly includes a slider, and the slider has a flow channel. The gas discharged from the flow channel forms an air film between the guide rail and the slider. The gas supply device is connected to the flow channel to supply gas into the flow channel. The detection device is arranged between the guide rail and the slider. The detection device is used to detect the thickness of the air film; and / or, the detection device is used to detect the air pressure value between the guide rail and the slider. The adjustment assembly is used to adjust at least one of the gas flow rate, gas velocity, and air pressure of the gas entering the flow channel. The control module is electrically connected to both the detection device and the adjustment assembly. When the detection value of the detection device exceeds the preset air film thickness range and / or the preset air pressure range, the control module controls the operating parameters of the adjustment assembly according to the detection value of the detection device. In this way, by real-time monitoring the thickness of the air film and the air pressure value between the guide rail and the slider, the control module can intelligently adjust the gas flow rate, velocity, and air pressure of the gas entering the flow channel according to the detection value, ensure that the air film is always in the best state and put into use with a preset thickness, so as to adapt to different working requirements, improve the running accuracy of the slider assembly on the guide rail, reduce friction and vibration, and thus solve the problem of poor stability of the air film thickness in the air-floating slider system in the prior art, and improve the machining accuracy and stability of the entire machine tool. At the same time, the intelligent gas flow rate and air pressure adjustment mechanism can avoid excessive gas supply, reduce unnecessary energy consumption, and only provide accurate gas volume when needed, thereby realizing efficient and energy-saving operation and reducing the operating cost.

[0111] Obviously, the embodiments described above are only a part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0112] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they specify the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0113] It should be noted that the terms "first", "second", etc. in the description, claims and drawings of the present application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0114] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A guide rail assembly, characterized in that, Comprising: A guide rail (10); A slider assembly (20), including a slider (21), the slider (21) having a flow channel (211), and the gas discharged from the flow channel (211) forms an air film between the guide rail (10) and the slider (21); A gas supply device, which is communicated with the flow channel (211) to supply gas into the flow channel (211); A detection assembly, arranged between the guide rail (10) and the slider (21), the detection assembly is used to detect the thickness of the air film; and / or, the detection assembly is used to detect the air pressure value between the guide rail (10) and the slider (21); An adjustment assembly, used to adjust at least one of the gas flow rate, gas velocity, and air pressure of the gas entering the flow channel (211); A control module, electrically connected to both the detection assembly and the adjustment assembly. When the detection value of the detection assembly exceeds a preset air film thickness range and / or a preset air pressure range, the control module controls the operating parameters of the adjustment assembly according to the detection value of the detection assembly.

2. The guide rail assembly according to claim 1, characterized in that, The adjustment assembly includes: A pipeline, through which the gas supply device is communicated with the flow channel (211); A control valve, arranged on the pipeline; Wherein, when the detection value of the detection assembly exceeds a preset air film thickness range and / or a preset air pressure range, the control module adjusts the operating parameters of the control valve according to the detection value of the detection assembly, so as to adjust at least one of the gas flow rate, gas velocity, and air pressure in the pipeline through the control valve.

3. The guide rail assembly according to claim 1, characterized in that, The detection assembly includes: A first air pressure detection device (60), used to detect the air pressure value in the air film formation area; Wherein, there are multiple first air pressure detection devices (60), and the multiple first air pressure detection devices (60) are arranged at intervals along the extension direction and / or the width direction of the slider (21).

4. The guide rail assembly according to claim 1 or 3, wherein The detection assembly includes an eddy current sensor and a metal conductor arranged opposite to the eddy current sensor, the metal conductor and the eddy current sensor are respectively located on both sides of the air film, so as to obtain the thickness of the air film according to the output value of the eddy current sensor; or, The detection assembly includes a laser displacement sensor, and the emission end of the laser displacement sensor passes through the air film to detect the thickness of the air film.

5. The guide rail assembly according to claim 1, wherein The slider (21) further has a mounting hole (212) communicated with the flow channel (211), and the slider assembly (20) further includes: A throttling structure (22) is arranged in the mounting hole (212). The throttling structure (22) has an exhaust passage (221), and the flow passage (211) is communicated with the exhaust passage (221) through the mounting hole (212); an exhaust port (2211) of the exhaust passage (221) is located between the guide rail (10) and the slider (21); wherein, a cross-sectional area s of the exhaust port (2211) is smaller than a cross-sectional area S1 of the flow passage (211); and / or, a pore diameter of the exhaust port (2211) is less than or equal to 0.1 mm and less than or equal to 0.2 mm.

6. A machine tool, characterized in that, Comprising: A machine tool body (30); A guide rail assembly (40) arranged on the machine tool body (30); A workbench (50) arranged on the guide rail assembly (40); A load detection device which is arranged on the workbench (50) for detecting a load value of the workbench (50); the load detection device is electrically connected to a control module of the guide rail assembly (40), and the control module adjusts at least one of gas flow rate, gas flow velocity and air pressure in a pipeline of the guide rail assembly (40) according to a detection value of the load detection device; Wherein, the guide rail assembly (40) is the guide rail assembly according to any one of claims 1 to 5.

7. A control method for a guide rail assembly, characterized in that, Applicable to the guide rail assembly according to any one of claims 1 to 5, a control method for the guide rail assembly comprises: Obtaining a target parameter of an air film of the guide rail assembly, where the target parameter is used to characterize a thickness size of the air film; When the target parameter is not within a preset range, sending a first control signal to the adjustment assembly to enable the adjustment assembly to adjust relevant parameters of gas in the guide rail assembly, so that the target parameter is within the preset range, where the relevant parameters are parameters for adjusting a size of the target parameter of the air film.

8. The control method of the guide rail assembly according to claim 7, wherein Obtaining the target parameter of the air film of the guide rail assembly includes at least one of the following: Receiving a thickness of the air film of the guide rail assembly sent by an eddy current sensor or a laser displacement sensor; Receiving an air pressure value between the guide rail and the slider sent by a first air pressure detection device.

9. The control method of the guide rail assembly according to claim 7, characterized in that The control method for the guide rail assembly further comprises: When the target parameter is not within a preset range, sending a control signal to the adjustment assembly to enable the adjustment assembly to adjust relevant parameters of gas in the guide rail assembly, including: When the target parameter is greater than or equal to a first preset value, sending a first control signal for reducing the relevant parameters to a control valve of the adjustment assembly; When the target parameter is less than or equal to a second preset value, sending a second control signal for increasing the relevant parameters to the control valve of the adjustment assembly; Wherein, the target parameter includes at least one of a thickness of the air film and an air pressure value between the guide rail and the slider of the guide rail assembly, the relevant parameters at least include one of a flow rate, a flow velocity and an air pressure of gas in the guide rail assembly, the first preset value is a maximum value of the preset range corresponding to the target parameter, and the second preset value is a minimum value of the preset range corresponding to the target parameter.

10. The method for controlling a guide rail assembly according to claim 7, wherein When the target parameter is within the preset range, the guide rail assembly control method further includes: Obtaining environmental parameters in the environment where the guide rail assembly is located, where the environmental parameters include at least one of temperature, humidity, and pressure; When the environmental parameters are not within the corresponding target parameter range, adjusting the gas parameters of the flow channel in the slider, where the gas parameters include at least one of gas flow rate, gas velocity, and air pressure.

Images