Honing wheel diagnosis method and system

Abstract

The invention relates to the technical field of honing wheel diagnosis, in particular to a honing wheel diagnosis method and system.The honing wheel diagnosis method comprises the steps that S1, a laser displacement sensor is moved to enable laser of the laser displacement sensor to irradiate a gear at the center position of a honing wheel, and the laser displacement sensor serves as a measurement original point of the laser displacement sensor; s2, the honing wheel is rotated, and data, measured by the laser displacement sensor, of the distance between the original point and the surface of the honing wheel are collected in real time; s3, processing the collected distance data to obtain two-dimensional coordinates of all points on the surface of the honing wheel; and S4, drawing a contour diagram of the honing wheel according to the obtained two-dimensional coordinates of all the points on the surface of the honing wheel, comparing the contour diagram with a standard contour diagram of the honing wheel, if the distances between the multiple points on the drawn contour diagram of the honing wheel and the corresponding points on the standard contour diagram of the honing wheel are all larger than a set threshold value, determining that the abrasion of the honing wheel exceeds the limit and the honing wheel needs to be replaced, and if the distances between the multiple points on the drawn contour diagram of the honing wheel and the corresponding points on the standard contour diagram of the honing wheel are not larger than the set threshold value, replacing the honing wheel. Otherwise, replacement is not needed. By means of the honing wheel diagnosis method, the honing wheel can be replaced in time.

Description

Technical Field

[0001] The present invention relates to the technical field of honing wheel diagnosis, and in particular to a honing wheel diagnosis method and system. Background Art

[0002] In mechanical processing, honing is a commonly used precision processing method, which is mainly used to improve the dimensional accuracy, shape accuracy and surface quality of the inner hole of the workpiece. As a key tool in the honing process, the performance and state of the honing wheel directly affect the processing quality and efficiency.

[0003] At present, the replacement of honing wheels mainly relies on manual disassembly and experience to determine whether replacement is needed.

[0004] This traditional judgment method has the following problems:

[0005] 1. The efficiency of manual judgment is low. In order to determine the wear condition of the honing wheel, the honing wheel needs to be frequently disassembled for inspection, which not only consumes a lot of time and manpower, but also causes production interruptions and reduces production efficiency.

[0006] 2. The accuracy of manual judgment depends on personal experience. Different operators may have different judgment criteria, resulting in a high degree of subjectivity in the judgment results. Moreover, it is difficult to accurately assess the degree of wear of the honing wheel based on naked eye observation and experience alone, which is prone to misjudgment.

[0007] Therefore, a honing wheel diagnosis method and system are urgently needed to solve the above problems. Summary of the invention

[0008] The purpose of the present invention is to solve the problems existing in the above-mentioned background technology and to provide a honing wheel diagnosis method and system.

[0009] In order to achieve the above object, the first aspect of the present invention provides a honing wheel diagnosis method, the honing wheel diagnosis method comprising the following steps:

[0010] S1, moving the laser displacement sensor so that its laser is irradiated on the gear at the center of the honing wheel in a manner parallel to the end face of the honing wheel, and serving as the measurement origin of the laser displacement sensor;

[0011] S2, rotating the honing wheel, and collecting the distance data from the origin to the surface of the honing wheel measured by the laser displacement sensor in real time;

[0012] S3, performing data conversion and coordinate conversion processing on the collected distance data in sequence to obtain the two-dimensional coordinates of each point on the surface of the honing wheel;

[0013] S4. Draw a contour map of the honing wheel according to the obtained two-dimensional coordinates of each point on the surface of the honing wheel, and compare it with the contour map of the standard honing wheel. If the distances between multiple points on the contour map of the drawn honing wheel and the corresponding points on the contour map of the standard honing wheel are all greater than a set threshold, it indicates that the honing wheel is currently worn beyond the limit and needs to be replaced. Otherwise, it does not need to be replaced.

[0014] Preferably, in step S1, the moving laser displacement sensor so that its laser is irradiated on the gear at the center of the honing wheel in a manner parallel to the end face of the honing wheel specifically includes:

[0015] A laser displacement sensor is set on one side of the machine honing wheel, and the laser of the laser displacement sensor is irradiated on the gear of the honing wheel in a manner parallel to the end face of the honing wheel; then the laser displacement sensor is moved in a direction approaching or away from the honing wheel, and the distance data measured by the laser displacement sensor is collected in real time. When the distance data increases abnormally, the movement is stopped, and then the laser displacement sensor is moved by half the diameter of the honing wheel to the center position of the honing wheel.

[0016] Preferably, in step S3, data conversion processing is performed on the collected distance data, specifically including:

[0017] The maximum value function is used to obtain the maximum value in the distance data, and the correction value is obtained based on the maximum value and the tooth root circle radius, and then the actual distance data of each point is obtained based on the correction value.

[0018] Preferably, the calculation formula of the tooth root circle radius is:

[0019] r f =d max ±d

[0020] Among them, r f is the tooth root radius, d max is the maximum value in the distance data, and d is the correction value;

[0021] The calculation formula for the actual distance data is:

[0022] r i =r f +|d max -d i |

[0023] Among them, r i is the actual distance data of each point, d i is the distance data of each point before correction.

[0024] Preferably, in step S3, coordinate transformation processing is performed to obtain the two-dimensional coordinates of each point on the surface of the honing wheel, specifically including:

[0025] According to the actual distance data r of each point i and the angle θ i , and obtain the two-dimensional coordinates (x i ,y i ).

[0026] Preferably, the angle θ at each point i The calculation formula is:

[0027] θ i =ωt i

[0028] Where, w is the speed of the honing wheel, t i for the current moment;

[0029] The two-dimensional coordinates (x i ,y i ) is calculated as:

[0030] x i =r i ×sinθ i

[0031] y i =r i ×cosθ i

[0032] Among them, x i is the horizontal coordinate of each point on the honing wheel surface, y i is the ordinate of each point on the honing wheel surface.

[0033] Preferably, in step S3, before the data conversion is performed on the collected distance data, the following steps are included:

[0034] The collected distance data is preprocessed, and the preprocessing method is mean filtering or median filtering.

[0035] Preferably, in step S4, the selected areas of the multiple points on the drawn honing wheel profile are one or more areas where the deviation between the drawn honing wheel profile and the standard honing wheel profile is greater than a set deviation threshold.

[0036] Preferably, in step S4, the distance D between the multiple points on the drawn contour map of the honing wheel and the corresponding points on the contour map of the standard honing wheel is ij The calculation formula is:

[0037]

[0038] Among them, x j is the horizontal coordinate of each corresponding point on the profile of the standard honing wheel, yj It is the ordinate of each corresponding point on the outline diagram of the standard honing wheel.

[0039] A second aspect of the present invention provides a honing wheel diagnostic system, which is applied to the above-mentioned honing wheel diagnostic method. The honing wheel diagnostic system comprises:

[0040] A positioning module is used to move the laser displacement sensor so that its laser is irradiated on the gear at the center of the honing wheel in a manner parallel to the end face of the honing wheel, and serves as the measurement origin of the laser displacement sensor;

[0041] A data measurement and acquisition module is used to rotate the honing wheel and collect the distance data from the origin to the surface of the honing wheel measured by the laser displacement sensor in real time;

[0042] A data processing module is used to perform data conversion and coordinate conversion processing on the collected distance data in sequence to obtain the two-dimensional coordinates of each point on the surface of the honing wheel;

[0043] The replacement judgment module is used to draw a contour map of the honing wheel according to the obtained two-dimensional coordinates of each point on the surface of the honing wheel, and compare it with the contour map of the standard honing wheel. If the distances between multiple points on the contour map of the drawn honing wheel and the corresponding points on the contour map of the standard honing wheel are all greater than the set threshold, it indicates that the current wear of the honing wheel exceeds the limit and needs to be replaced. Otherwise, it does not need to be replaced.

[0044] According to the above technical solution, based on the honing wheel diagnostic method and system, by collecting the distance data from the origin to the honing wheel surface measured by the laser displacement sensor, the collected distance data is then sequentially subjected to data conversion and coordinate conversion processing to obtain the two-dimensional coordinates of each point on the honing wheel surface, and then a contour map of the honing wheel is drawn according to the obtained two-dimensional coordinates of each point on the honing wheel surface, and compared with the contour map of the standard honing wheel. Therefore, in actual application, it can be based on whether the distances between multiple points on the drawn contour map of the honing wheel and the corresponding points on the contour map of the standard honing wheel are all greater than a set threshold, to accurately judge whether the honing wheel is worn beyond the limit and needs to be replaced, thereby avoiding manual replacement based on experience, resulting in the honing wheel being replaced in advance and causing an increase in the use cost, and the honing wheel not being replaced in time and affecting the processing quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 is a flow chart of the honing wheel diagnostic method;

[0046] Figure 2 This is a setting method of the laser displacement sensor in a specific implementation. DETAILED DESCRIPTION

[0047] The specific implementation of the embodiment of the present invention is described in detail below. It should be understood that the specific implementation described here is only used to illustrate and explain the embodiment of the present invention, and is not used to limit the embodiment of the present invention.

[0048] A first aspect of the present invention provides a honing wheel diagnosis method, such as Figure 1 As shown, the honing wheel diagnostic method includes the following steps:

[0049] S1, moving the laser displacement sensor so that its laser is irradiated on the gear at the center of the honing wheel in a manner parallel to the end face of the honing wheel, and serving as the measurement origin of the laser displacement sensor;

[0050] S2, rotating the honing wheel, and collecting the distance data from the origin to the surface of the honing wheel measured by the laser displacement sensor in real time;

[0051] S3, performing data conversion and coordinate conversion processing on the collected distance data in sequence to obtain the two-dimensional coordinates of each point on the surface of the honing wheel;

[0052] S4. Draw a contour map of the honing wheel according to the obtained two-dimensional coordinates of each point on the surface of the honing wheel, and compare it with the contour map of the standard honing wheel. If the distances between multiple points on the contour map of the drawn honing wheel and the corresponding points on the contour map of the standard honing wheel are all greater than a set threshold, it indicates that the honing wheel is currently worn beyond the limit and needs to be replaced. Otherwise, it does not need to be replaced.

[0053] According to the above technical scheme, based on the honing wheel diagnostic method, by collecting the distance data from the origin to the honing wheel surface measured by the laser displacement sensor, and then performing data conversion and coordinate conversion processing on the collected distance data in turn to obtain the two-dimensional coordinates of each point on the honing wheel surface, and then drawing the contour map of the honing wheel according to the obtained two-dimensional coordinates of each point on the honing wheel surface, and comparing it with the contour map of the standard honing wheel, so that in actual application, it can be based on whether the distances between multiple points on the drawn contour map of the honing wheel and the corresponding points on the contour map of the standard honing wheel are all greater than the set threshold, to accurately judge whether the honing wheel is worn beyond the limit and needs to be replaced, thereby avoiding manual replacement based on experience, resulting in the honing wheel being replaced in advance and causing increased use costs, and the honing wheel not being replaced in time and affecting the processing quality of the product. Among them, the points on the contour diagram of the specifically drawn honing wheel are replaced when the distances from the corresponding points on the contour diagram of the standard honing wheel are greater than the set threshold. This can be set according to the actual processing quality needs of the product. Generally, the higher the processing quality of the product, the fewer points are required to exceed the set threshold.

[0054] In the honing wheel diagnosis method of the present invention, preferably, in step S1, the moving laser displacement sensor makes its laser irradiate the gear at the center of the honing wheel in a manner parallel to the end face of the honing wheel, which specifically includes:

[0055] A laser displacement sensor is set on one side of the machine honing wheel, and the laser of the laser displacement sensor is irradiated on the gear of the honing wheel in a manner parallel to the end face of the honing wheel; then the laser displacement sensor is moved in a direction approaching or away from the honing wheel, and the distance data measured by the laser displacement sensor is collected in real time. When the distance data increases abnormally, the movement is stopped, and then the laser displacement sensor is moved by half the diameter of the honing wheel to the center position of the honing wheel. In actual application, the laser displacement sensor can be accurately positioned at the center position of the honing wheel to avoid manual operation, which will cause positioning errors and affect the accuracy of subsequent diagnosis.

[0056] In a specific embodiment, Figure 2 As shown, a slide rail perpendicular to the end face of the honing wheel is provided below the machine honing wheel, a slider is installed on the slide rail, a universal rod is installed on the slider, and the laser displacement sensor is installed on the universal rod. In actual application, the laser of the laser displacement sensor is first irradiated on the gear of the honing wheel in a manner parallel to the end face of the honing wheel through the slider and the universal rod; then the slider is moved along the slide rail, thereby driving the laser displacement sensor to move in the direction of approaching or moving away from the honing wheel, so that the laser displacement sensor can be accurately positioned at the center of the honing wheel.

[0057] In the honing wheel diagnosis method of the present invention, preferably, in step S3, the collected distance data is subjected to data conversion processing, which specifically includes:

[0058] The maximum value function is used to obtain the maximum value in the distance data, and the correction value is obtained based on the maximum value and the tooth root circle radius, and then the actual distance data of each point is obtained based on the correction value.

[0059] In a specific implementation, the calculation formula of the tooth root circle radius is:

[0060] r f =d max ±d

[0061] Among them, r f is the tooth root radius, d max is the maximum value in the distance data, and d is the correction value;

[0062] The calculation formula for the actual distance data is:

[0063] r i =r f+|d max -d i |

[0064] Among them, r i is the actual distance data of each point, d i is the distance data of each point before correction.

[0065] In step S3, coordinate transformation is performed to obtain the two-dimensional coordinates of each point on the surface of the honing wheel, which specifically includes:

[0066] According to the actual distance data r of each point i and the angle θ i , and obtain the two-dimensional coordinates (x i ,y i ).

[0067] In a specific embodiment, the angle θ of each point i The calculation formula is:

[0068] θ i =ωt i

[0069] Where, w is the speed of the honing wheel, t i for the current moment;

[0070] The two-dimensional coordinates (x i ,y i ) is calculated as:

[0071] x i =r i ×sinθ i

[0072] y i =r i ×cosθ i

[0073] Among them, x i is the horizontal coordinate of each point on the honing wheel surface, y i is the ordinate of each point on the honing wheel surface.

[0074] In the present invention, the two-dimensional coordinates of each point on the honing wheel surface are obtained by performing data conversion and coordinate conversion processing on the collected distance data in sequence, and then a contour map is drawn based on the two-dimensional coordinates of each point on the honing wheel surface to compare with the contour map of a standard honing wheel. Compared with the method of manually judging the degree of honing wheel wear based on experience, the accuracy of the diagnosis of the degree of honing wheel wear can be effectively improved.

[0075] In the honing wheel diagnosis method of the present invention, preferably, in step S3, before the data conversion of the collected distance data is performed, the following steps are included:

[0076] The collected distance data is preprocessed by a mean filter or a median filter, so as to avoid the interference of abnormal data and affect the accuracy of the diagnosis of the wear degree of the honing wheel. Specifically, for example, for a number of consecutive measurement points, if the difference between a certain point and the surrounding points exceeds a certain threshold, the point is judged as an abnormal point and is removed or corrected.

[0077] In the honing wheel diagnosis method described in the present invention, preferably, in step S4, the selected area of ​​multiple points on the drawn contour map of the honing wheel is one or more areas where the deviation between the drawn contour map of the honing wheel and the contour map of the standard honing wheel is greater than a set deviation threshold.

[0078] In another preferred embodiment, in step S4, the distances D between the multiple points on the contour diagram of the drawn honing wheel and the corresponding points on the contour diagram of the standard honing wheel are ij The calculation formula is:

[0079]

[0080] Among them, x j is the horizontal coordinate of each corresponding point on the profile of the standard honing wheel, y j It is the ordinate of each corresponding point on the outline diagram of the standard honing wheel.

[0081] In a specific embodiment, the step of drawing a contour diagram of the honing wheel according to the obtained two-dimensional coordinates of each point on the surface of the honing wheel specifically includes:

[0082] According to the two-dimensional coordinates of each point on the surface of the honing wheel, each point is displayed as a waveform icon, and the contour diagram of the honing wheel is obtained by connecting each point in sequence.

[0083] In practical application, the contour map of the drawn honing wheel is first compared with the contour map of the standard honing wheel, and then multiple points are selected in one or more areas with large differences (i.e., the deviation is greater than the set deviation threshold) to calculate whether the distance with the corresponding point on the contour map of the standard honing wheel is greater than the set threshold. If it is greater, it needs to be replaced, and if it is not greater, it does not need to be replaced for the time being, thereby finally realizing accurate diagnosis of the degree of wear of the honing wheel. Specifically, the drawing of the contour map and the comparison of the drawn contour map with the contour map of the standard honing wheel can be realized based on LabVIEW.

[0084] A second aspect of the present invention provides a honing wheel diagnostic system, which is applied to the above-mentioned honing wheel diagnostic method. The honing wheel diagnostic system comprises:

[0085] A positioning module is used to move the laser displacement sensor so that its laser is irradiated on the gear at the center of the honing wheel in a manner parallel to the end face of the honing wheel, and serves as the measurement origin of the laser displacement sensor;

[0086] A data measurement and acquisition module is used to rotate the honing wheel and collect the distance data from the origin to the surface of the honing wheel measured by the laser displacement sensor in real time;

[0087] A data processing module is used to perform data conversion and coordinate conversion processing on the collected distance data in sequence to obtain the two-dimensional coordinates of each point on the surface of the honing wheel;

[0088] The replacement judgment module is used to draw a contour map of the honing wheel according to the obtained two-dimensional coordinates of each point on the surface of the honing wheel, and compare it with the contour map of the standard honing wheel. If the distances between multiple points on the contour map of the drawn honing wheel and the corresponding points on the contour map of the standard honing wheel are all greater than the set threshold, it indicates that the current wear of the honing wheel exceeds the limit and needs to be replaced. Otherwise, it does not need to be replaced.

[0089] According to the above technical solution, based on the honing wheel diagnostic system, by collecting the distance data from the origin to the honing wheel surface measured by the laser displacement sensor, the collected distance data is then sequentially subjected to data conversion and coordinate conversion processing to obtain the two-dimensional coordinates of each point on the honing wheel surface, and then a contour map of the honing wheel is drawn according to the obtained two-dimensional coordinates of each point on the honing wheel surface, and compared with the contour map of the standard honing wheel. Therefore, in actual application, it can be based on whether the distances between multiple points on the drawn contour map of the honing wheel and the corresponding points on the contour map of the standard honing wheel are all greater than a set threshold, to accurately judge whether the honing wheel is worn beyond the limit and needs to be replaced, thereby avoiding manual replacement based on experience, resulting in the honing wheel being replaced in advance and causing an increase in the use cost, and the honing wheel not being replaced in time and affecting the processing quality of the product.

[0090] The present invention will be described in detail below through examples, but the protection scope of the present invention is not limited thereto.

[0091] Example 1

[0092] Use Figure 1 The honing wheel diagnostic method shown is used for replacement diagnosis of the honing wheel. Specifically, the honing wheel diagnostic method comprises the following steps:

[0093] S1, moving the laser displacement sensor so that its laser is irradiated on the gear at the center of the honing wheel in a manner parallel to the end face of the honing wheel, and serving as the measurement origin of the laser displacement sensor;

[0094] S2, rotating the honing wheel, and collecting the distance data from the origin to the surface of the honing wheel measured by the laser displacement sensor in real time;

[0095] S3, performing data conversion and coordinate conversion processing on the collected distance data in sequence to obtain the two-dimensional coordinates of each point on the surface of the honing wheel;

[0096] S4, drawing a contour map of the honing wheel according to the obtained two-dimensional coordinates of each point on the surface of the honing wheel, and comparing it with the contour map of a standard honing wheel, if the distances between multiple points on the drawn contour map of the honing wheel and the corresponding points on the contour map of the standard honing wheel are all greater than a set threshold, it indicates that the honing wheel is currently worn beyond the limit and needs to be replaced, otherwise it does not need to be replaced;

[0097] In step S1, the moving laser displacement sensor so that its laser is irradiated on the gear at the center of the honing wheel in a manner parallel to the end face of the honing wheel specifically includes:

[0098] A laser displacement sensor is set on one side of the machine honing wheel, and the laser of the laser displacement sensor is irradiated on the gear of the honing wheel in a manner parallel to the end face of the honing wheel; then the laser displacement sensor is moved in a direction approaching or away from the honing wheel, and the distance data measured by the laser displacement sensor is collected in real time. When the distance data increases abnormally, the movement is stopped, and then the laser displacement sensor is moved by half the diameter of the honing wheel to the center position of the honing wheel.

[0099] It has been tested that the honing wheel diagnosis method of the present invention can effectively improve the accuracy of honing wheel diagnosis compared with the scheme of manually diagnosing the degree of wear of the honing wheel based on experience, so that the honing wheel can be replaced in time when the wear exceeds the limit.

[0100] Example 2

[0101] The method is implemented with reference to Example 1, except that, in step S3, the collected distance data is subjected to data conversion processing, which specifically includes:

[0102] The maximum value function is used to obtain the maximum value in the distance data, and the correction value is obtained according to the maximum value and the tooth root circle radius, and then the actual distance data of each point is obtained according to the correction value;

[0103] The calculation formula for the tooth root radius is:

[0104] r f =d max ±d

[0105] Among them, r f is the tooth root radius, d max is the maximum value in the distance data, and d is the correction value;

[0106] The calculation formula for the actual distance data is:

[0107] r i =r f +|d max -d i |

[0108] Among them, r i is the actual distance data of each point, d i is the distance data of each point before correction;

[0109] In step S3, coordinate transformation is performed to obtain the two-dimensional coordinates of each point on the surface of the honing wheel, which specifically includes:

[0110] According to the actual distance data r of each point i and the angle θ i , and obtain the two-dimensional coordinates (x i ,y i );

[0111] The angle θ of each point i The calculation formula is:

[0112] θ i =ωt i

[0113] Where, w is the speed of the honing wheel, t i for the current moment;

[0114] The two-dimensional coordinates (x i ,y i ) is calculated as:

[0115] x i =r i ×sinθ i

[0116] y i =r i ×cosθ i

[0117] Among them, x i is the horizontal coordinate of each point on the honing wheel surface, y i is the ordinate of each point on the surface of the honing wheel;

[0118] In step S3, before the collected distance data is converted, the following steps are included:

[0119] Preprocessing the collected distance data, wherein the preprocessing method is mean filtering;

[0120] In step S4, the distance D between the multiple points on the drawn honing wheel profile and the corresponding points on the standard honing wheel profile is ij The calculation formula is:

[0121]

[0122] Among them, x j is the horizontal coordinate of each corresponding point on the profile of the standard honing wheel, y j It is the ordinate of each corresponding point on the outline diagram of the standard honing wheel.

[0123] After testing, it is found that the honing wheel diagnosis method of the present invention can further effectively improve the accuracy of the diagnosis of the wear degree of the honing wheel compared with the solution in Example 1, so that the honing wheel can be replaced in time when the wear degree of the honing wheel exceeds the limit.

[0124] Example 3

[0125] The method is implemented with reference to Example 2, except that in step S4, the selected area of ​​multiple points on the drawn honing wheel contour map is one or more areas where the deviation between the drawn honing wheel contour map and the standard honing wheel contour map is greater than a set deviation threshold.

[0126] After testing, it is found that the honing wheel diagnosis method of the present invention can further effectively improve the accuracy of diagnosis of the wear degree of the honing wheel compared with the solution in Example 2, so that the honing wheel can be replaced in time when the wear degree of the honing wheel exceeds the limit.

[0127] The honing wheel diagnosis method and system provided by the present invention collects the distance data from the origin to the honing wheel surface measured by the laser displacement sensor, and then performs data conversion and coordinate conversion processing on the collected distance data in sequence to obtain the two-dimensional coordinates of each point on the honing wheel surface, and then draws the contour map of the honing wheel according to the obtained two-dimensional coordinates of each point on the honing wheel surface, and compares it with the contour map of the standard honing wheel. Therefore, in actual application, it can be based on whether the distances between multiple points on the drawn contour map of the honing wheel and the corresponding points on the contour map of the standard honing wheel are all greater than a set threshold, and accurately judge whether the honing wheel is worn beyond the limit and needs to be replaced, so as to avoid manual replacement based on experience, resulting in the honing wheel being replaced in advance and causing an increase in the use cost, and the honing wheel not being replaced in time and affecting the processing quality of the product.

[0128] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited thereto. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations. However, these simple modifications and combinations should also be regarded as the contents disclosed by the present invention and belong to the protection scope of the present invention.

Claims

1. A honing wheel diagnostic method, characterized in that: The honing wheel diagnostic method comprises the following steps: S1, moving the laser displacement sensor so that its laser is irradiated on the gear at the center of the honing wheel in a manner parallel to the end face of the honing wheel, and serving as the measurement origin of the laser displacement sensor; S2, rotating the honing wheel, and collecting the distance data from the origin to the surface of the honing wheel measured by the laser displacement sensor in real time; S3, performing data conversion and coordinate conversion processing on the collected distance data in sequence to obtain the two-dimensional coordinates of each point on the surface of the honing wheel; S4. Draw a contour map of the honing wheel according to the obtained two-dimensional coordinates of each point on the surface of the honing wheel, and compare it with the contour map of the standard honing wheel. If the distances between multiple points on the contour map of the drawn honing wheel and the corresponding points on the contour map of the standard honing wheel are all greater than a set threshold, it indicates that the honing wheel is currently worn beyond the limit and needs to be replaced. Otherwise, it does not need to be replaced.

2. The honing wheel diagnosis method according to claim 1, characterized in that: In step S1, the moving laser displacement sensor so that its laser is irradiated on the gear at the center of the honing wheel in a manner parallel to the end face of the honing wheel specifically includes: A laser displacement sensor is set on one side of the machine honing wheel, and the laser of the laser displacement sensor is irradiated on the gear of the honing wheel in a manner parallel to the end face of the honing wheel; then the laser displacement sensor is moved in a direction approaching or away from the honing wheel, and the distance data measured by the laser displacement sensor is collected in real time. When the distance data increases abnormally, the movement is stopped, and then the laser displacement sensor is moved by half the diameter of the honing wheel to the center position of the honing wheel.

3. The honing wheel diagnosis method according to claim 1, characterized in that: In step S3, the collected distance data is converted, specifically including: The maximum value function is used to obtain the maximum value in the distance data, and the correction value is obtained based on the maximum value and the tooth root circle radius, and then the actual distance data of each point is obtained based on the correction value.

4. The honing wheel diagnosis method according to claim 3, characterized in that: The calculation formula for the tooth root radius is: r f =d max ±d Among them, r f is the tooth root radius, d max is the maximum value in the distance data, and d is the correction value; The calculation formula for the actual distance data is: r i =r f +|d max -d i | Among them, r i is the actual distance data of each point, d i is the distance data of each point before correction.

5. The honing wheel diagnosis method according to claim 4, characterized in that: In step S3, coordinate transformation is performed to obtain the two-dimensional coordinates of each point on the surface of the honing wheel, which specifically includes: According to the actual distance data r of each point i and the angle θ i , and obtain the two-dimensional coordinates (x i ,y i ).

6. The honing wheel diagnosis method according to claim 5, characterized in that: The angle θ of each point i The calculation formula is: i i =ωt i Where, w is the speed of the honing wheel, t i for the current moment; The two-dimensional coordinates (x i ,y i ) is calculated as: x i =r i ×sinθ i y i =r i ×cosθ i Among them, x i is the horizontal coordinate of each point on the honing wheel surface, y i is the ordinate of each point on the honing wheel surface.

7. The honing wheel diagnosis method according to any one of claims 1 to 6, characterized in that: In step S3, before the collected distance data is converted, the following steps are included: The collected distance data is preprocessed, and the preprocessing method is mean filtering or median filtering.

8. The honing wheel diagnosis method according to claim 1, characterized in that: In step S4, the selected area of ​​multiple points on the drawn contour map of the honing wheel is one or more areas where the deviation between the drawn contour map of the honing wheel and the contour map of the standard honing wheel is greater than a set deviation threshold.

9. The honing wheel diagnosis method according to claim 5, characterized in that: In step S4, the distance D between the multiple points on the drawn honing wheel profile and the corresponding points on the standard honing wheel profile is ij The calculation formula is: Among them, x j is the horizontal coordinate of each corresponding point on the profile of the standard honing wheel, y j It is the ordinate of each corresponding point on the outline diagram of the standard honing wheel.

10. A honing wheel diagnostic system, characterized in that: The honing wheel diagnostic method according to any one of claims 1 to 9, wherein the honing wheel diagnostic system comprises: A positioning module is used to move the laser displacement sensor so that its laser is irradiated on the gear at the center of the honing wheel in a manner parallel to the end face of the honing wheel, and serves as the measurement origin of the laser displacement sensor; A data measurement and acquisition module is used to rotate the honing wheel and collect the distance data from the origin to the surface of the honing wheel measured by the laser displacement sensor in real time; A data processing module is used to perform data conversion and coordinate conversion processing on the collected distance data in sequence to obtain the two-dimensional coordinates of each point on the surface of the honing wheel; The replacement judgment module is used to draw a contour map of the honing wheel according to the obtained two-dimensional coordinates of each point on the surface of the honing wheel, and compare it with the contour map of the standard honing wheel. If the distances between multiple points on the contour map of the drawn honing wheel and the corresponding points on the contour map of the standard honing wheel are all greater than the set threshold, it indicates that the current wear of the honing wheel exceeds the limit and needs to be replaced. Otherwise, it does not need to be replaced.

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