Device and method for detecting machine guide rail gap

Abstract

The invention relates to the technical field of precision measurement equipment, in particular to a device and method for detecting machine guide rail gaps. According to the technical scheme, the device comprises a workbench body, a guide rail body, a supporting assembly, a moving assembly, a lifting assembly and a control assembly, the supporting assembly is arranged on the bottom face of the workbench body, the guide rail body is arranged on the surface of the workbench body, the moving assembly is arranged on one side of the workbench body, and the lifting assembly is arranged on the other side of the workbench body. A lifting assembly is arranged on the top face of the moving assembly. Compared with a traditional device for detecting the guide rail gap of the machine, the device for detecting the guide rail gap of the machine has the advantages that laser interference detection is usually selected, existing laser interference detection equipment is high in price and high in requirement for a measurement link, and temperature and humidity can influence a measurement result; the guide rail gap size can be rapidly detected, the precision is high, the operation is simple, the portability is good, and the cost is low.

Description

Technical Field

[0001] The invention relates to the technical field of precision measuring equipment, and in particular to a device and method for detecting a machine guide rail gap. Background Art

[0002] The device for detecting the clearance of machine guide rails is a device or system specially used to measure and detect the clearance of guide rails, with the purpose of ensuring the running accuracy and stability of mechanical equipment. The clearance of guide rails usually refers to the gap between the guide rails and the matching parts such as sliders and slide seats. The size of this gap has an important influence on the accuracy, stability and life of the equipment. Too large or too small a gap will affect the performance of the equipment; Too large a gap will cause displacement, jitter or vibration of mechanical parts during movement, affecting the positioning accuracy and operating accuracy of the equipment; Improper clearance will cause the equipment to move unsmoothly and increase friction, thus affecting the long-term operating stability of the equipment; Excessive clearance will increase the friction between the guide rail and the mating parts, causing accelerated wear and thus shortening the service life of the equipment.

[0003] Existing devices for detecting the gap between machine guide rails usually use laser interferometry. However, existing laser interferometry detection equipment is expensive, has high requirements for the measurement process, and temperature and humidity will affect the measurement results. In addition, the operation is complicated.

[0004] In view of the problems that the existing device for detecting the guide rail gap of the machine has high requirements on the measurement link, temperature and humidity will affect the measurement results, and the operation is complicated, the device for detecting the guide rail gap of the machine is equipped with a micrometer detection, which can quickly detect the size of the guide rail gap. The micrometer is placed on the spindle end to detect the middle gap of the guide rail. The accuracy is relatively high, the operation is simple, the portability is good, and the cost is low. Summary of the invention

[0005] In order to overcome the existing devices for detecting the gap of the guide rails of the machine, laser interferometry detection is usually selected. However, the existing laser interferometry detection equipment is expensive, has high requirements for the measurement process, and the temperature and humidity will affect the measurement results, and the operation is complicated.

[0006] The technical solution of the present invention is: a device for detecting the guide rail gap of a machine, comprising a workbench main body, a guide rail main body, a support assembly, a moving assembly, a lifting assembly, a control assembly, a path controller, a first rotating base, a first connecting rod, a second rotating base, a second connecting rod, a detection tool, a micrometer, a test module and a high-precision fixed block, wherein a support assembly is arranged on the bottom surface of the workbench main body, a guide rail main body is arranged on the surface of the workbench main body, a moving assembly is arranged on one side of the workbench main body, a lifting assembly is arranged on the top surface of the moving assembly, a control assembly is arranged on one side of the lifting assembly, a path controller is arranged on the bottom surface of the lifting assembly, a first rotating base is arranged on one side of the path controller, a first connecting rod is arranged on one side of the first rotating base, a second rotating base is arranged on one end of the first connecting rod, a second rotating base is arranged on one side of the second connecting rod, a detection tool is arranged on one end of the second connecting rod, and a micrometer is arranged on one side of the detection tool.

[0007] Compared with the traditional device for detecting the guide rail gap of the machine, laser interferometry detection is usually chosen. However, the existing laser interferometry detection equipment is expensive, has high requirements for the measurement process, and the temperature and humidity will affect the measurement results. In addition, the operation is complicated. By setting up a micrometer detection, the size of the guide rail gap can be quickly detected. By placing the micrometer on the spindle end to detect the middle gap of the guide rail, the accuracy is relatively high, the operation is simple, the portability is good, and the cost is low.

[0008] Preferably, the workbench body is supported by a supporting assembly, the lifting assembly is moved by a moving assembly, the detection tool is driven to rise and fall by the lifting assembly, the device is controlled by a control assembly, the moving path of the detection tool is controlled by a path controller, the first connecting rod is installed by a first rotating base, the second rotating base is installed by the first connecting rod, the second connecting rod is installed by the second rotating base, the detection tool is installed by the second connecting rod, the deviation of the high-precision fixed block is positioned by the detection tool, and the deviation is detected and displayed by a micrometer.

[0009] Preferably, the support assembly includes a support column, a support frame and an anti-slip pad. Support columns are arranged at the four corners of the bottom surface of the workbench body, a support frame is arranged at the bottom end of the support column, and an anti-slip pad is arranged on the bottom surface of the support frame. When in use, the support frame is installed through the support columns, the workbench body is supported by the support frame, and the workbench body is prevented from sliding during work by the anti-slip pad. When in use, the rotating screw is installed through the installation box, the rotating screw is driven to rotate by the rotating motor, the installation bracket is driven to move by the rotating screw, and the lifting assembly is installed through the installation bracket.

[0010] Preferably, the moving component includes an installation box, a rotating screw, a mounting bracket and a rotating motor. An installation box is provided on one side of the workbench body, a rotating screw is provided inside the installation box, a mounting bracket is provided on the outer side of the rotating screw, and a rotating motor is provided on one side of the installation box. When in use, the control computer is driven to rise and fall by the hydraulic lifting platform, and the device is controlled by the control computer.

[0011] Preferably, the lifting assembly includes a hydraulic lifting platform and a control computer. A hydraulic lifting platform is arranged on the top of the mounting bracket, and a control computer is arranged on the top of the hydraulic lifting platform. When in use, the detection data is displayed on the data display screen, and the data display screen is controlled by the control button.

[0012] Preferably, the control component includes a data display screen and control buttons. The data display screen is arranged on one side of the control computer, and the control buttons are arranged below the data display screen.

[0013] The moving path of the detection tool is controlled by the path controller, the first connecting rod is installed by the first rotating base, the second rotating base is installed by the first connecting rod, the second connecting rod is installed by the second rotating base, the detection tool is installed by the second connecting rod, the deviation of the high-precision fixed block is positioned by the detection tool, and the deviation is detected and displayed by the micrometer, so as to achieve the purpose of accurately detecting the guide rail gap at low cost and conveniently. The method and device described in the present invention are not only suitable for the detection of the guide rail gap of CNC machine tools, but also can be widely used in other mechanical equipment that needs to detect the guide rail gap; Moreover, the device for detecting the guide rail gap of the machine can quickly detect the size of the guide rail gap by setting a micrometer for detection. The middle gap of the guide rail is detected by placing the micrometer on the spindle end, which has high accuracy, simple operation, good portability and low cost.

[0014] A method for detecting the clearance of a machine guide rail includes the following methods: S11: First, check the guide rails, micrometer and testing equipment of the testing machine; S12: Install the micrometer; S13: Start detection, and detect the gaps existing in the x, y, and z axes of the guide rail respectively; S14: Repeat the verification and record of the test results.

[0015] Preferably, the preparation includes the following steps: S21: Ensure that the range, accuracy and other parameters of the dial gauge meet the measurement requirements. At the same time, check whether the measuring rod of the dial gauge moves flexibly, whether there is no friction between the pointer and the dial, whether the dial does not shake, and whether the measuring rod and pointer are not blocked or jumping; S22: Make sure the surface of the guide rail is clean and free of oil and dust to avoid affecting the accuracy of the measurement results; S23: Ensure that the measurement environment is stable to avoid the influence of vibration and temperature changes on the measurement results.

[0016] Preferably, when installing the micrometer, the following steps are included: S31: First, the micrometer is adsorbed on the end face of the spindle; S32: Fit the detection surface of the detection tool to one side of the high-precision fixed block to be detected.

[0017] Preferably, the detection includes the following steps: S41: First, push the front and side of the y-axis to see if the micrometer jumps; S42: If the runout is too large, it means that the Y-axis guideway clearance is out of tolerance; S43: When checking the x and z axes, take off the micrometer and adsorb it on the main body of the workbench to use it as a reference; S44: Install a fixed block on the spindle end face, and push the front and side of the x and z axes to detect the guide rail clearance.

[0018] Preferably, when summarizing the test results, the following steps are included: S51: Record the maximum value of the reading change, and use the maximum value to reflect the gap size of the guide rail at this measuring point; S52: Repeat the test at multiple measurement points to ensure data consistency; S53: Record the reading change of each measuring point.

[0019] The above-mentioned detection method and device can quickly and accurately detect the gap size of the CNC machine tool guide rail, avoiding machine tool instability and processing quality problems caused by excessive guide rail gap. Compared with the traditional laser interference detection method, this embodiment uses a micrometer for detection and uses a high-precision fixed block as a detection reference, which improves the accuracy and stability of the detection results, effectively reduces the detection cost, and makes the operation more convenient.

[0020] Beneficial effects of the present invention: 1. Compared with the traditional device for detecting the gap of the guide rail, laser interference detection is usually selected. However, the existing laser interference detection equipment is expensive, has high requirements for the measurement link, and the temperature and humidity will affect the measurement results. In addition, the operation is complicated. The device for detecting the gap of the guide rail of the machine can quickly detect the size of the guide rail gap by setting a micrometer. By placing the micrometer at the spindle end to detect the gap in the middle of the guide rail, the accuracy is relatively high, the operation is simple, the portability is good, and the cost is low; 2. The moving path of the detection tool is controlled by a motion controller, the first connecting rod is installed by a first rotating base, the second rotating base is installed by the first connecting rod, the second connecting rod is installed by the second rotating base, the detection tool is installed by the second connecting rod, the deviation of the high-precision fixed block is positioned by the detection tool, and the deviation is detected and displayed by a micrometer, so as to achieve the purpose of accurately detecting the guide rail gap at low cost and conveniently. The method and device stated in the present invention are not only suitable for the detection of the guide rail gap of CNC machine tools, but can also be widely used in other mechanical equipment that need to detect the guide rail gap. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Shown is a first three-dimensional structural schematic diagram of a device for detecting the gap between machine guide rails according to the present invention; Figure 2 Shown is a second three-dimensional structural schematic diagram of a device for detecting the gap between machine guide rails according to the present invention; Figure 3 Shown is a schematic diagram of the three-dimensional structure of a device for detecting the gap between guide rails of a machine according to the present invention; Figure 4 Shown is a partial three-dimensional structural schematic diagram of a device for detecting the gap between machine guide rails according to the present invention; Figure 5 What is shown is a schematic diagram of the operation workflow of a method for detecting the clearance of a machine guide rail according to the present invention; Figure 6 What is shown is a schematic diagram of the workflow of preparing a method for detecting the gap between machine guide rails of the present invention.

[0022] Explanation of the accompanying drawings: 1. Workbench body; 2. Guide rail body; 301. Support column; 302. Support frame; 303. Anti-slip pad; 401. Installation box; 402. Rotating screw; 403. Installation bracket; 404. Rotating motor; 501. Hydraulic lifting platform; 502. Control computer; 601. Data display screen; 602. Control button; 701. Movement controller; 702. First rotating base; 703. First connecting rod; 704. Second rotating base; 705. Second connecting rod; 706. Detection tool; 707. Micrometer; 8. Test module; 9. High-precision fixing block. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0024] See also Figure 1 and Figure 2The present invention provides an embodiment: a device for detecting the clearance of a machine guide rail, comprising a workbench body 1, a guide rail body 2, a support assembly, a moving assembly, a lifting assembly, a control assembly, a path controller 701, a first rotating base 702, a first connecting rod 703, a second rotating base 704, a second connecting rod 705, a detection tool 706, a micrometer 707, a test module 8 and a high-precision fixed block 9, the bottom surface of the workbench body 1 is provided with a support assembly, the surface of the workbench body 1 is provided with a guide rail body 2, and one side of the workbench body 1 is provided with a moving assembly A lifting assembly is disposed on the top surface of the moving assembly, a control assembly is disposed on one side of the lifting assembly, a path controller 701 is disposed on the bottom surface of the lifting assembly, a first rotating base 702 is disposed on one side of the path controller 701, a first connecting rod 703 is disposed on one side of the first rotating base 702, a second rotating base 704 is disposed on one end of the first connecting rod 703, a second connecting rod 705 is disposed on one side of the second rotating base 704, a detection tool 706 is disposed on one end of the second connecting rod 705, and a micrometer 707 is disposed on one side of the detection tool 706; Compared with the traditional device for detecting the guide rail gap of the machine, laser interference detection is usually selected. However, the existing laser interference detection equipment is expensive, has high requirements for the measurement link, and the temperature and humidity will affect the measurement results. In addition, the operation is complicated. The device for detecting the guide rail gap of the machine can quickly detect the size of the guide rail gap by setting a micrometer detection. The micrometer is placed on the spindle end to detect the middle gap of the guide rail. It has high accuracy, simple operation, good portability and low cost.

[0025] Preferably, see Figure 3 and Figure 4 The workbench body 1 is supported by the supporting assembly, the lifting assembly is driven to move by the moving assembly, the detection tool 706 is driven to rise and fall by the lifting assembly, the device is controlled by the control assembly, the moving path of the detection tool 706 is controlled by the action controller 701, the first connecting rod 703 is installed by the first rotating base 702, the second rotating base 704 is installed by the first connecting rod 703, the second connecting rod 705 is installed by the second rotating base 704, the detection tool 706 is installed by the second connecting rod 705, the deviation of the high-precision fixed block 9 is positioned by the detection tool 706, and the deviation is detected and displayed by the micrometer 707.

[0026] Preferably, the support assembly includes a support column 301, a support frame 302 and an anti-slip pad 303. The four corners of the bottom surface of the workbench main body 1 are provided with support columns 301, the bottom end of the support column 301 is provided with a support frame 302, and the bottom surface of the support frame 302 is provided with an anti-slip pad 303. When in use, the support frame 302 is installed by the support column 301, the support frame 302 is used to support the workbench main body 1, and the anti-slip pad 303 is used to prevent the workbench main body 1 from sliding during operation.

[0027] Preferably, the moving component includes an installation box 401, a rotating screw 402, an installation bracket 403 and a rotating motor 404. An installation box 401 is provided on one side of the workbench body 1, a rotating screw 402 is provided inside the installation box 401, an installation bracket 403 is sleeved on the outer side of the rotating screw 402, and a rotating motor 404 is provided on one side of the installation box 401. When in use, the rotating screw 402 is installed through the installation box 401, the rotating screw 402 is driven to rotate by the rotating motor 404, the installation bracket 403 is driven to move by the rotating screw 402, and the lifting component is installed through the installation bracket 403.

[0028] Preferably, the lifting assembly includes a hydraulic lifting platform 501 and a control computer 502. The hydraulic lifting platform 501 is arranged at the top of the mounting bracket 403, and the control computer 502 is arranged at the top of the hydraulic lifting platform 501. When in use, the control computer 502 is driven to lift and lower by the hydraulic lifting platform 501, and the device is controlled by the control computer 502.

[0029] Preferably, the control component includes a data display screen 601 and a control button 602. The data display screen 601 is arranged on one side of the control computer 502, and the control button 602 is arranged below the data display screen 601. When in use, the detection data is displayed through the data display screen 601, and the data display screen 601 is controlled by the control button 602.

[0030] The moving path of the detection tool is controlled by the action controller, the first connecting rod is installed by the first rotating base, the second rotating base is installed by the first connecting rod, the second connecting rod is installed by the second rotating base, the detection tool is installed by the second connecting rod, the deviation of the high-precision fixed block is positioned by the detection tool, and the deviation is detected and displayed by the micrometer, thereby achieving the purpose of accurately detecting the guide rail gap at low cost and conveniently. The method and device stated in the present invention are not only suitable for the detection of the guide rail gap of CNC machine tools, but can also be widely used in other mechanical equipment that requires the detection of the guide rail gap.

[0031] See also Figure 5 and Figure 6In this embodiment, a method for detecting the clearance of a machine guide rail includes the following method: S11: First, check the guide rails of the testing machine, the micrometer 707 and the testing equipment; S12: Install the micrometer 707; S13: Start detection, and detect the gaps existing in the x, y, and z axes of the guide rail respectively; S14: Repeat the verification and record of the test results.

[0032] Preferably, the preparation includes the following steps: S21: Ensure that the range, accuracy and other parameters of the dial gauge 707 meet the measurement requirements. At the same time, check whether the measuring rod of the dial gauge 707 moves flexibly, whether there is no friction between the pointer and the dial, whether the dial does not shake, and whether the measuring rod and the pointer are not blocked or jumping; S22: Make sure the surface of the guide rail is clean and free of oil and dust to avoid affecting the accuracy of the measurement results; S23: Ensure that the measurement environment is stable to avoid the influence of vibration and temperature changes on the measurement results.

[0033] Preferably, when the micrometer 707 is installed, the following steps are included: S31: First, the micrometer 707 is adsorbed on the end face of the spindle; S32: Fit the detection surface of the detection tool 706 to one surface of the high-precision fixed block 9 to be detected.

[0034] Preferably, the detection includes the following steps: S41: First, push the front and side of the y-axis to see if the micrometer 707 jumps; S42: If the runout is too large, it means that the Y-axis guideway clearance is out of tolerance; S43: When detecting the x and z axes, the micrometer 707 is taken down and adsorbed on the workbench body 1 to be used as a reference; S44: Install a fixed block on the spindle end face, and push the front and side of the x and z axes to detect the guide rail clearance.

[0035] Preferably, when summarizing the test results, the following steps are included: S51: Record the maximum value of the reading change, and use the maximum value to reflect the gap size of the guide rail at this measuring point; S52: Repeat the test at multiple measurement points to ensure data consistency; S53: Record the reading change of each measuring point.

[0036] Example 1 In a certain machining workshop, the following steps are included when testing the guide rail clearance of a CNC machine tool: 1. Carry out a comprehensive inspection of the guide rails, micrometer and testing equipment of the testing machine to ensure that they are in good condition and meet the testing requirements.

[0037] 2. Clean the surface of the guide rail to remove oil and dust to avoid affecting the accuracy of the measurement results.

[0038] 3. Ensure that the measurement environment is stable to avoid the influence of external factors such as vibration and temperature changes on the measurement results.

[0039] 4. Attach the micrometer to the end face of the spindle to ensure that its position is stable and can accurately detect changes in the guide rail clearance.

[0040] 5. Fit the detection surface of the detection tool with one side of the high-precision fixed block to be tested to prepare for subsequent testing work.

[0041] 6. Check the Y-axis guide rail: push the front and side of the Y-axis with force, and observe whether the micrometer jumps. If the jump amplitude is too large, it proves that the Y-axis guide rail gap is out of tolerance.

[0042] 7. Check the x-axis and z-axis guide rails: remove the micrometer from the spindle end face, adsorb it on the workbench body as a reference, install a fixed block on the spindle end face, and then push the front and side of the x-axis and z-axis to observe the changes in the micrometer reading.

[0043] 8. Record the reading changes at each measuring point, and use the maximum value to reflect the gap size of the guide rail at this measuring point.

[0044] 9. Repeat testing at multiple measurement points to ensure data consistency and accuracy.

[0045] 10. Based on the test results, evaluate the guide rail clearance and take appropriate measures to adjust and optimize it.

[0046] The detection method and device provided in this embodiment can quickly and accurately detect the gap size of the CNC machine tool guide rail, avoiding the instability of the machine tool and the processing quality problems caused by the excessive gap of the guide rail. Compared with the traditional laser interference detection method, this embodiment uses a micrometer for detection, and uses a high-precision fixed block as a detection reference, which improves the accuracy and stability of the detection result, effectively reduces the detection cost, and makes the operation more convenient. Moreover, the device for detecting the guide rail gap of the machine can quickly detect the size of the guide rail gap by setting a micrometer for detection. The middle gap of the guide rail is detected by placing the micrometer on the spindle end, which has high accuracy, simple operation, good portability and low cost.

[0047] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the spirit of the present invention.

Claims

1. A device for detecting the clearance of a machine guide rail, characterized in that: The invention comprises a workbench body (1), a guide rail body (2), a support component, a moving component, a lifting component, a control component, a path controller (701), a first rotating base (702), a first connecting rod (703), a second rotating base (704), a second connecting rod (705), a detection tool (706), a micrometer (707), a test module (8) and a high-precision fixed block (9), wherein the bottom surface of the workbench body (1) is provided with a support component, the surface of the workbench body (1) is provided with a guide rail body (2), one side of the workbench body (1) is provided with a moving component, and the top surface of the moving component is provided with a A lifting component, wherein a control component is arranged on one side of the lifting component, a path controller (701) is arranged on the bottom surface of the lifting component, a first rotating base (702) is arranged on one side of the path controller (701), a first connecting rod (703) is arranged on one side of the first rotating base (702), a second rotating base (704) is arranged on one end of the first connecting rod (703), a second connecting rod (705) is arranged on one side of the second rotating base (704), a detection tool (706) is arranged on one end of the second connecting rod (705), and a micrometer (707) is arranged on one side of the detection tool (706).

2. The device for detecting the gap of a machine guide rail according to claim 1, characterized in that: The support assembly comprises a support column (301), a support frame (302) and an anti-skid pad (303); the four corners of the bottom surface of the workbench body (1) are each provided with a support column (301); the bottom end of the support column (301) is provided with a support frame (302); and the bottom surface of the support frame (302) is provided with an anti-skid pad (303).

3. The device for detecting the gap between guide rails of a machine according to claim 1, characterized in that: The moving assembly comprises a mounting box (401), a rotating screw rod (402), a mounting bracket (403) and a rotating motor (404); the mounting box (401) is arranged on one side of the workbench body (1); the rotating screw rod (402) is arranged inside the mounting box (401); the mounting bracket (403) is sleeved on the outer side of the rotating screw rod (402); and the rotating motor (404) is arranged on one side of the mounting box (401).

4. The device for detecting the gap between guide rails of a machine according to claim 3, characterized in that: The lifting assembly comprises a hydraulic lifting platform (501) and a control computer (502); the hydraulic lifting platform (501) is arranged at the top of the mounting bracket (403); and the control computer (502) is arranged at the top of the hydraulic lifting platform (501).

5. The device for detecting the gap of a machine guide rail according to claim 4, characterized in that: The control component comprises a data display screen (601) and a control button (602). The data display screen (601) is arranged on one side of the control computer (502), and the control button (602) is arranged below the data display screen (601).

6. A method for detecting the clearance of a machine guide rail, characterized in that: The device for detecting the gap of a machine guide rail as described in claims 1 to 5 comprises the following method: S11: First, check the guide rails of the testing machine, the micrometer (707) and the testing equipment; S12: Install the micrometer (707); S13: Start detection, and detect the gaps existing in the x, y, and z axes of the guide rail respectively; S14: Repeat the verification and record of the test results.

7. A method for detecting the clearance of a machine guide rail according to claim 6, characterized in that: The preparation steps include: S21: Ensure that the range, accuracy and other parameters of the dial gauge (707) meet the measurement requirements. At the same time, check whether the measuring rod of the dial gauge (707) moves flexibly, whether there is no friction between the pointer and the dial, whether the dial does not shake, and whether the measuring rod and the pointer are not blocked or jumping; S22: Make sure the surface of the guide rail is clean and free of oil and dust to avoid affecting the accuracy of the measurement results; S23: Ensure that the measurement environment is stable to avoid the influence of vibration and temperature changes on the measurement results.

8. A method for detecting the clearance of a machine guide rail according to claim 7, characterized in that: When installing the micrometer 707, the following steps are included: S31: First, the micrometer (707) is adsorbed on the end face of the spindle; S32: Fitting the detection surface of the detection tool (706) to one side of the high-precision fixed block (9) to be detected.

9. A method for detecting the clearance of a machine guide rail according to claim 8, characterized in that: The following steps are included in the test: S41: First, push the front and side of the y-axis with force to see if the micrometer (707) jumps; S42: If the runout is too large, it means that the Y-axis guideway clearance is out of tolerance; S43: When inspecting the x and z axes, the micrometer (707) is removed and adsorbed on the workbench body (1) to be used as a reference; S44: Install a fixed block on the spindle end face, and push the front and side of the x and z axes to detect the guide rail clearance.

10. A method for detecting the clearance of a machine guide rail according to claim 9, characterized in that: When summarizing the test results, the following steps are included: S51: Record the maximum value of the reading change, and use the maximum value to reflect the gap size of the guide rail at this measuring point; S52: Repeat the test at multiple measurement points to ensure data consistency; S53: Record the reading change of each measuring point.

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