Movable taper hole grinder

Abstract

The present application relates to machine tool processing equipment technical field, especially movable conical hole grinder, including: grinding mechanism, it is set on the upper part of longitudinal feed mechanism, including main shaft box, the main shaft is set in one end of main shaft box for carrying out grinding wheel, the grinding wheel is set in one end of main shaft for processing conical hole;Detection mechanism, sound sensor for detecting sound data is set in one side of main shaft box, image acquisition device for collecting grinding wheel surface image is set in the end of main shaft box;Control mechanism, including data analysis module, image analysis module for analyzing the uniformity of abrasive particle distribution of grinding wheel surface image to determine the wear degree of grinding wheel, the feed speed of grinding wheel is reduced, or based on the correlation condition of sound intensity and abrasive particle distribution density, according to the relative difference absolute value of distribution density evaluation value and preset distribution density evaluation value, the parameter adjustment module for determining the increase of processing spacing.The present application improves the processing efficiency of conical hole grinder on conical hole.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of machine tool processing equipment, and particularly relates to a movable conical hole grinder. BACKGROUND

[0002] As a key component in many mechanical devices, the machining precision and surface quality of the conical hole directly affect the overall performance and service life of the device. The core function of the conical hole grinder is to perform precision grinding processing of the conical hole of workpieces made of various metal and non-metal materials. Based on grinding technology and mechanical structure design, the relative movement between the high-precision grinding wheel and the workpiece is realized to achieve the purpose of improving the surface roughness, dimensional accuracy and shape accuracy by removing a small amount of material from the surface of the conical hole.

[0003] Chinese patent application publication No. CN107186559A discloses a high-precision numerical control inner hole conical surface processing grinder, which comprises a clamping device, a first longitudinal feeding device, a grinding wheel device, a third slope feeding device and a second transverse feeding device. The clamping device is arranged on the first longitudinal feeding device. The workpiece to be processed is arranged on the clamping device. The third slope feeding device is arranged on the second transverse feeding device, and the third slope feeding device and the feeding axis of the second transverse feeding device form an angle. The grinding wheel device is arranged on the third slope feeding device, and the grinding wheel device faces the workpiece to be processed. However, the prior art has the following problems: the prior art provides a complete processing system for the conical hole grinder, including a clamping device, a first longitudinal feeding device, a grinding wheel device, a third slope feeding device and a second transverse feeding device. However, there is a lack of monitoring and compensation for the grinding wheel wear, which leads to low quality of the conical hole processed by the conical hole grinder, thereby causing the problem of low processing efficiency of the conical hole grinder. SUMMARY

[0004] Therefore, the present application provides a movable conical hole grinder to overcome the problem of low quality of the conical hole processed by the conical hole grinder due to the lack of monitoring and compensation for the grinding wheel wear in the prior art, thereby causing the problem of low processing efficiency of the conical hole grinder.

[0005] To achieve the above-mentioned purpose, the present application provides a movable conical hole grinder, which comprises:

[0006] a transverse feeding mechanism, a longitudinal feeding mechanism and

[0007] a grinding mechanism arranged on the upper part of the longitudinal feeding mechanism, comprising a spindle box, a spindle arranged at one end of the spindle box to carry a grinding wheel, and a grinding wheel arranged at one end of the spindle to process the conical hole.

[0008] a detection mechanism including a sound sensor arranged at one side of the spindle box to detect sound data during grinding of the grinding wheel, and an image acquisition device arranged at an end of the spindle box to acquire an image of the surface of the grinding wheel;

[0009] a control mechanism connected to the transverse feeding mechanism, the longitudinal feeding mechanism, the grinding mechanism and the detection mechanism, including a data analysis module to analyze sound fluctuation during grinding of the grinding wheel, an image analysis module to analyze the uniformity of abrasive particle distribution of the image of the surface of the grinding wheel to determine the degree of wear of the grinding wheel, a parameter adjustment module to reduce the feeding speed of the grinding wheel based on the uniformity of abrasive particle distribution, or to increase the machining distance based on the correlation between sound intensity and abrasive particle distribution density, according to the relative difference absolute value between the evaluation value of the distribution density and the preset evaluation value of the distribution density.

[0010] Further, a column and a rotating mechanism are further included, the rotating mechanism is arranged on the transverse feeding mechanism and includes a rotating seat and a rotating shaft arranged at the top end of the rotating seat to drive the grinding mechanism to rotate.

[0011] Further, the transverse feeding mechanism includes a transverse body arranged at the upper part of the column, a transverse tool rest arranged on the transverse body to perform transverse feeding, and a transverse slide box arranged at the end of the transverse tool rest away from the column to drive the transverse tool rest to reciprocate.

[0012] Further, the longitudinal feeding mechanism includes a longitudinal body arranged at the top end of the rotating seat, a longitudinal tool rest arranged on the longitudinal body to perform longitudinal feeding, and a longitudinal slide box arranged at one end of the longitudinal tool rest to drive the longitudinal tool rest to reciprocate.

[0013] Further, the control mechanism further includes a data acquisition module to acquire sound data of the sound sensor and the image of the surface of the grinding wheel of the image acquisition device, and the data analysis module determines that the sound fluctuation of the grinding wheel during grinding is within a reasonable range based on the comparison result that the sound fluctuation characteristic parameter obtained from the sound data is less than or equal to the preset sound fluctuation characteristic parameter under the condition of acquiring sound data.

[0014] The image analysis module determines that the degree of wear of the grinding wheel is unqualified according to the comparison result that the uniformity of abrasive particle distribution of the image of the surface of the grinding wheel when the sound fluctuation is within a reasonable range is greater than the preset uniformity of abrasive particle distribution.

[0015] Further, the parameter adjustment module determines to decrease the feed speed of the grinding wheel by a first preset feed speed adjustment coefficient based on a comparison result that the difference between the grain distribution uniformity and the preset grain distribution uniformity is less than or equal to a preset difference, or to decrease the feed speed of the grinding wheel by a second preset feed speed adjustment coefficient based on a comparison result that the difference between the grain distribution uniformity and the preset grain distribution uniformity is greater than the preset difference, when the grinding wheel wear degree is determined to be unqualified.

[0016] Further, the data analysis module determines that the sound fluctuation of the grinding wheel in the grinding process is not in a reasonable range based on a comparison result that a sound fluctuation characteristic parameter obtained from the sound data is greater than a preset sound fluctuation characteristic parameter, when the sound data is obtained.

[0017] The image analysis module determines that the sound intensity of the sound fluctuation not in a reasonable range is positively correlated with the grain distribution density according to a comparison result that the distribution density evaluation value of the grinding wheel surface image is less than or equal to a preset distribution density evaluation value, or determines that the sound intensity of the sound fluctuation not in a reasonable range is negatively correlated with the grain distribution density according to a comparison result that the distribution density evaluation value of the grinding wheel surface image is greater than the preset distribution density evaluation value.

[0018] Further, the parameter adjustment module determines to increase the processing interval by a first preset interval adjustment coefficient based on a comparison result that the relative difference absolute value between the distribution density evaluation value and the preset distribution density evaluation value is less than or equal to a preset relative difference absolute value, or to increase the processing interval by a second preset interval adjustment coefficient based on a comparison result that the relative difference absolute value between the distribution density evaluation value and the preset distribution density evaluation value is greater than the preset relative difference absolute value, when the correlation between the sound intensity of the sound fluctuation not in a reasonable range and the grain distribution density is determined.

[0019] Further, the control mechanism further comprises a data processing module, which determines that the taper hole processing is unqualified based on a comparison result that the surface roughness of the taper hole is greater than a preset surface roughness, when the adjustment mode is determined.

[0020] Further, the control mechanism further comprises a data optimization module, which determines to increase the grinding wheel speed by a preset grinding wheel speed adjustment coefficient based on a comparison result that the ratio of the surface roughness to the preset surface roughness is less than or equal to a preset ratio, or to increase the grinding wheel linear speed by a preset grinding wheel linear speed adjustment coefficient based on a comparison result that the ratio of the surface roughness to the preset surface roughness is greater than the preset ratio, when the taper hole processing is determined to be unqualified.

[0021] Compared with the prior art, the present application has the beneficial effects that the present application collects sound data and grinding wheel surface images, the data analysis module evaluates the sound fluctuation rationality, the image analysis module judges the grinding wheel wear and the relationship between the sound and the abrasive particle distribution, the parameter adjustment module adjusts the feed speed or the processing interval accordingly, the data processing module determines the conical hole processing quality, and the data optimization module optimizes the grinding wheel speed or the grinding wheel linear speed for unqualified conditions, so as to realize the monitoring and adjustment of the grinding process, improve the accuracy and efficiency of the conical hole processing through accurate data analysis and processing.

[0022] Further, the present application compares the sound fluctuation characteristic parameters with the preset sound fluctuation characteristic parameters to determine whether the sound fluctuation in the grinding wheel grinding process is within a reasonable range, monitors the sound fluctuation of the grinding wheel grinding, finds potential grinding problems, and improves the accuracy and efficiency of the conical hole processing.

[0023] Further, the present application evaluates the eligibility of the grinding wheel wear degree, and adjusts the grinding wheel feed speed according to the difference between the abrasive particle distribution uniformity and the preset abrasive particle distribution uniformity when it is unqualified, accurately judges the grinding wheel wear state, and adjusts the feed speed according to the wear degree to ensure the processing quality and efficiency.

[0024] Further, the present application evaluates the correlation between the grinding wheel surface abrasive particle distribution density and the sound intensity of the sound fluctuation not within a reasonable range, calculates the distribution density evaluation value, and compares it with the preset density evaluation value, determines to increase the processing interval of the grinding wheel and the conical hole by comparing the relative difference absolute value of the distribution density evaluation value and the preset density evaluation value, accurately adjusts the processing interval, optimizes the grinding process, and reduces the processing errors caused by uneven abrasive particle distribution or excessive wear.

[0025] Further, the present application compares the conical hole surface roughness with the preset surface roughness to determine the eligibility of the conical hole processing, optimizes the grinding wheel processing process if it is unqualified, reduces the roughness of the conical hole surface, and thus improves the accuracy and surface quality of the conical hole processing. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a front view structural schematic diagram of the movable conical hole grinding machine of the embodiment of the present application;

[0027] Figure 2 It is a left view structural schematic diagram of the movable conical hole grinding machine of the embodiment of the present application;

[0028] Figure 3 It is a structural schematic diagram of the control mechanism of the embodiment of the present application;

[0029] Figure 4 It is a flow chart of determining the eligibility of the grinding wheel wear degree of the embodiment of the present application;

[0030] In the figure, 1, column; 201, transverse body; 202, transverse tool rest; 203, transverse slide box; 301, rotary seat; 302, rotary shaft; 401, longitudinal body; 402, longitudinal tool rest; 403, longitudinal slide box; 501, support seat; 502, main shaft box; 503, main shaft; 504, grinding wheel; 6, driving motor; 701, sound sensor; 702, image acquisition device. DETAILED DESCRIPTION

[0031] In order to make the objects and advantages of the present application clearer, the present application will be further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application.

[0032] The preferred embodiments of the present application will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present application and not to limit the protection scope of the present application.

[0033] It should be pointed out that the data in the present embodiment are obtained by comprehensive analysis and evaluation of historical detection data and corresponding historical detection results in the three months before the present detection by the present application. Those skilled in the art can understand that the determination method of the present application for a single parameter can be to select the value with the highest proportion as the preset standard parameter according to the data distribution, to use weighted summation to obtain the value as the preset standard parameter, to substitute each historical data into a specific formula and to obtain the value by using the formula as the preset standard parameter, or other selection methods, as long as the present application can clearly define different specific situations in the single determination process by the obtained value.

[0034] Please refer to Figure 1 Figure 4 as shown, Figure 1 is a front view structural schematic diagram of the movable taper hole grinder in the embodiment of the present application; Figure 2 is a left view structural schematic diagram of the movable taper hole grinder in the embodiment of the present application; Figure 3 is a structural schematic diagram of the control mechanism in the embodiment of the present application; Figure 4 is a flow chart for determining the eligibility of the grinding wheel wear degree in the embodiment of the present application.

[0035] The embodiment of the present application is used for the movable taper hole grinder, which comprises:

[0036] a column 1,

[0037] a transverse feeding mechanism, which comprises a transverse body 201 arranged on the upper part of the column 1, a transverse tool rest 202 arranged on the transverse body 201 and used for transverse feeding, and a transverse slide box 203 arranged at one end of the transverse tool rest 202 and used for driving the transverse tool rest 202 to reciprocate;​

[0038] A rotating mechanism, which comprises a rotating seat 301 arranged in the middle of the transverse body 201, and a rotating shaft 302 arranged at the top of the rotating seat 301 to drive the grinding mechanism to rotate;

[0039] A longitudinal feeding mechanism, which comprises a longitudinal body 401 arranged at the top of the rotating seat 301, a longitudinal tool holder 402 arranged on the longitudinal body 401 to perform longitudinal feeding, and a longitudinal slide box 403 arranged at one end of the longitudinal tool holder 402 to drive the longitudinal tool holder 402 to reciprocate;

[0040] A grinding mechanism, which comprises a support seat 501 arranged at the upper part of the longitudinal body 401, a spindle box 502 arranged at the top of the support seat 501 to drive the spindle 503 to rotate, the spindle 503 arranged at one end of the spindle box 502 to carry the grinding wheel 504, and the grinding wheel 504 arranged at one end of the spindle 503 to process the tapered hole;

[0041] A driving motor 6 arranged at the top of the spindle box 502 to drive the grinding wheel 504 to rotate;

[0042] A detection mechanism, which comprises a sound sensor 701 arranged at one side of the spindle box 502 to detect the sound data of the grinding wheel 504 during the grinding process, and an image acquisition device 702 arranged at the end of the spindle box 502 to acquire the surface image of the grinding wheel;

[0043] A control mechanism connected with the transverse feeding mechanism, the longitudinal feeding mechanism, the grinding mechanism, and the detection mechanism, respectively, which comprises,

[0044] A data acquisition module to acquire the sound data of the sound sensor and the surface image of the grinding wheel of the image acquisition device;

[0045] A data analysis module connected with the data acquisition module to determine whether the sound fluctuation of the grinding wheel 504 during the grinding process is within a reasonable range based on the sound fluctuation characteristic parameters obtained from the sound data;

[0046] An image analysis module connected with the data acquisition module and the data analysis module to determine the eligibility of the wear degree of the grinding wheel 504 based on the uniformity of abrasive particle distribution of the surface image of the grinding wheel when the sound fluctuation is within a reasonable range, or to determine the correlation between the sound intensity and the abrasive particle distribution density according to the distribution density evaluation value of the surface image of the grinding wheel when the sound fluctuation is not within a reasonable range;

[0047] a parameter adjustment module connected with the image analysis module, configured to determine to reduce the feed speed of the grinding wheel 504 according to the uniformity of the abrasive particle distribution of the grinding wheel surface image under the condition that the grinding wheel 504 is unqualified in terms of the degree of wear, or to determine to increase the machining interval according to the relative difference absolute value between the distribution density evaluation value and the preset distribution density evaluation value under the condition that the correlation between the sound intensity and the abrasive particle distribution density is determined;

[0048] a data processing module connected with the data acquisition module and the parameter adjustment module, configured to determine the machining quality of the taper hole according to the surface roughness of the taper hole under the condition that the adjustment mode is determined;

[0049] a data optimization module connected with the data processing module, configured to determine to increase the grinding wheel speed or the grinding wheel linear speed according to the ratio between the surface roughness and the preset surface roughness under the condition that the machining of the taper hole is unqualified.

[0050] In the embodiment of the present application, the sound data and the grinding wheel surface image are both collected synchronously in a detection period.

[0051] In the embodiment of the present application, the detection period is the machining time of the grinding wheel 504 on the taper hole.

[0052] In the embodiment of the present application, the sound sensor is an acoustic emission sensor, which is not limited in particular, as long as it can collect sound data.

[0053] In the embodiment of the present application, the image acquisition device includes but is not limited to a camera, an industrial camera or an infrared camera.

[0054] In the embodiment of the present application, the grinding wheel 504 is used to machine the taper hole with the machining parameters of a feed speed of 20 mm / min, a machining interval of 0.5 mm, a grinding wheel linear speed of 30 mm / s and a grinding wheel speed of 2000 rpm, and the values of the above parameters are the historical average values of the parameters in the working process of machining the taper hole.

[0055] Specifically, the present application collects sound data and grinding wheel surface images, the data analysis module evaluates the sound fluctuation rationality, the image analysis module judges the wear of the grinding wheel 504 and the relationship between the sound and the abrasive particle distribution, the parameter adjustment module adjusts the feed speed or the machining interval accordingly, the data processing module determines the machining quality of the taper hole, and the data optimization module optimizes the grinding wheel speed or the grinding wheel linear speed for unqualified conditions, thereby realizing the monitoring and adjustment of the grinding process, improving the precision and efficiency of the taper hole machining through accurate data analysis and processing.

[0056] Specifically, the data analysis module determines whether the sound fluctuation of the grinding wheel 504 in the grinding process is within a reasonable range according to a comparison result of a sound fluctuation characteristic parameter obtained from the sound data and a preset sound fluctuation characteristic parameter 0.85 under the condition of obtaining the sound data.

[0057] If the sound fluctuation characteristic parameter is less than or equal to the preset sound fluctuation characteristic parameter, it is determined that the sound fluctuation of the grinding wheel 504 in the grinding process is within a reasonable range.

[0058] If the sound fluctuation characteristic parameter is greater than the preset sound fluctuation characteristic parameter, it is determined that the sound fluctuation of the grinding wheel 504 in the grinding process is not within a reasonable range.

[0059] In the embodiment of the application, the preset sound fluctuation characteristic parameter is 0.85, and the preset sound fluctuation characteristic parameter is obtained when the sound fluctuation characteristic parameter of the sound fluctuation in the grinding process is within a reasonable range, but the above-mentioned value is not limited thereto, and the value can be adjusted according to actual needs by those skilled in the art.

[0060] In the embodiment of the application, the reasonable range of the sound fluctuation is 60dB-80dB.

[0061] Specifically, the data analysis module calculates the sound fluctuation characteristic parameter according to the following formula, and sets:

[0062] (1)

[0063] Wherein, S represents the sound fluctuation characteristic parameter, N represents the number of sound data collected by the sound sensor, xi represents the sound intensity at the i th time point, μ represents the average value of the sound intensity, and σ represents the standard deviation of the sound intensity. i

[0064] Specifically, the application compares the sound fluctuation characteristic parameter with the preset sound fluctuation characteristic parameter to determine whether the sound fluctuation of the grinding wheel 504 in the grinding process is within a reasonable range, monitors the sound fluctuation of the grinding wheel 504, finds potential grinding problems, and improves the accuracy and efficiency of the taper hole processing.

[0065] Specifically, the image analysis module determines the eligibility of the wear degree of the grinding wheel 504 according to a comparison result of the uniformity of abrasive particle distribution of the grinding wheel surface image when the sound fluctuation is within a reasonable range and a preset uniformity of abrasive particle distribution 0.83 under the condition of obtaining the grinding wheel surface image.

[0066] If the uniformity of abrasive particle distribution is less than or equal to the preset uniformity of abrasive particle distribution, it is determined that the wear degree of the grinding wheel 504 is qualified.

[0067] ​If the uniformity of abrasive grain distribution is greater than the preset uniformity of abrasive grain distribution, then the wear degree of grinding wheel 504 is determined to be unqualified.

[0068] In this embodiment of the invention, the preset abrasive grain distribution uniformity is set to 0.83. The preset abrasive grain distribution uniformity is obtained by averaging several historical abrasive grain distribution uniformities that meet the wear level of the 504 grinding wheel. However, the above value is not limited to this, and those skilled in the art can adjust the value according to actual needs.

[0069] Specifically, the image analysis module calculates the uniformity of the abrasive grain distribution according to the following formula, and sets:

[0070] (2)

[0071] Where U represents the uniformity of abrasive grain distribution, M represents the total number of abrasive grains in the grinding wheel surface image, and A j This represents the area of ​​the j-th abrasive grain. This represents the average area of ​​all abrasive grains.

[0072] Specifically, when the wear degree of the grinding wheel 504 is determined to be unqualified, the parameter adjustment module determines the adjustment method of the grinding wheel feed speed based on the comparison result of the difference between the uniformity of abrasive distribution and the preset uniformity of abrasive distribution and the preset difference of 0.37.

[0073] If the difference is less than or equal to the preset difference, then the feed rate of the grinding wheel 504 is reduced to the corresponding value by the first preset feed rate adjustment coefficient of 0.95.

[0074] If the difference is greater than the preset difference, then the feed rate of the grinding wheel 504 is reduced to the corresponding value by the second preset feed rate adjustment coefficient of 0.91.

[0075] The difference is the difference between the uniformity of abrasive grain distribution and the preset uniformity of abrasive grain distribution.

[0076] In this embodiment of the invention, the preset difference value is 0.37, but the above value is not limited to this, and those skilled in the art can adjust the value according to actual needs.

[0077] In this embodiment of the invention, the reduced feed rate is the product of the feed rate and the m-th preset feed rate adjustment coefficient, where m is 1 or 2, T1 is the first preset feed rate adjustment coefficient of 0.95, and T2 is the second preset feed rate adjustment coefficient of 0.91.

[0078] Specifically, the application can accurately determine the wear state of the grinding wheel 504 by evaluating the eligibility of the wear degree of the grinding wheel 504, adjusting the grinding wheel feed speed according to the difference between the preset abrasive particle distribution uniformity and the abrasive particle distribution uniformity when the eligibility is not met, and adjusting the feed speed according to the wear degree, thereby ensuring the processing quality and efficiency.

[0079] Specifically, the image analysis module determines the correlation between the sound intensity and the abrasive particle distribution density when the sound fluctuation is not in a reasonable range according to the comparison result between the distribution density evaluation value of the grinding wheel surface image when the sound fluctuation is not in a reasonable range and the preset distribution density evaluation value 0.81.

[0080] If the distribution density evaluation value is less than or equal to the preset distribution density evaluation value, it is determined that the sound intensity and the abrasive particle distribution density are positively correlated when the sound fluctuation is not in a reasonable range.

[0081] If the distribution density evaluation value is greater than the preset distribution density evaluation value, it is determined that the sound intensity and the abrasive particle distribution density are negatively correlated when the sound fluctuation is not in a reasonable range.

[0082] In the embodiment of the application, the preset distribution density evaluation value is 0.81, but the above value is not limited thereto, and those skilled in the art can adjust the value according to actual needs.

[0083] In the embodiment of the application, the greater the abrasive particle distribution density, the greater the sound intensity when the sound fluctuation is not in a reasonable range, and the greater the abrasive particle distribution density, the greater the sound intensity when the sound fluctuation is not in a reasonable range.

[0084] Specifically, the image analysis module calculates the distribution density evaluation value according to the following formula, and sets:

[0085] (3)

[0086] wherein D represents the distribution density evaluation value, M represents the total number of abrasive particles in the grinding wheel surface image, d p represents the distance between the pth abrasive particle and its nearest neighbor abrasive particle, μ p represents the average value of the distance between adjacent abrasive particles.

[0087] Specifically, the parameter adjustment module determines the adjustment mode of the processing distance between the grinding wheel 504 and the tapered hole according to the comparison result between the relative difference absolute value of the distribution density evaluation value and the preset distribution density evaluation value and the preset relative difference absolute value 0.43 when the correlation between the sound intensity and the abrasive particle distribution density when the sound fluctuation is not in a reasonable range is determined.

[0088] If the absolute value of the relative difference is less than or equal to the preset absolute value of the relative difference, it is determined that the machining interval is increased to a corresponding value by adjusting the first preset interval adjustment coefficient 1.07.

[0089] If the absolute value of the relative difference is greater than the preset absolute value of the relative difference, it is determined that the machining interval is increased to a corresponding value by adjusting the second preset interval adjustment coefficient 1.12.

[0090] The absolute value of the relative difference is the absolute value of the relative difference between the distribution density evaluation value and the preset distribution density evaluation value.

[0091] In the embodiment of the application, the preset absolute value of the relative difference is 0.43, but the above value is not limited thereto, and a person skilled in the art can adjust the value according to actual needs.

[0092] In the embodiment of the application, the increased machining interval is the product of the machining interval and the nth preset interval adjustment coefficient, and the value of n is 1 or 2, R1 is the first preset interval adjustment coefficient 1.07, and R2 is the second preset interval adjustment coefficient 1.12.

[0093] Specifically, the application calculates the distribution density evaluation value by evaluating the correlation between the distribution density of abrasive grains on the surface of the grinding wheel 504 and the sound intensity of the sound wave fluctuation not in a reasonable range, and compares it with the preset density evaluation value. By comparing the absolute value of the relative difference between the distribution density evaluation value and the preset density evaluation value, the machining interval between the grinding wheel 504 and the tapered hole is determined to be increased, the machining interval is accurately adjusted, the grinding process is optimized, and the machining error caused by uneven distribution of abrasive grains or excessive wear is reduced.

[0094] Specifically, the data processing module further processes the tapered hole under the condition of determining the adjustment mode, and determines the qualification of the tapered hole processing according to the comparison result of the surface roughness of the tapered hole and the preset surface roughness 0.92.

[0095] If the surface roughness is less than or equal to the preset surface roughness, it is determined that the tapered hole processing is qualified.

[0096] If the surface roughness is greater than the preset surface roughness, it is determined that the tapered hole processing is unqualified.

[0097] In the embodiment of the application, the preset surface roughness is 0.92, but the above value is not limited thereto, and a person skilled in the art can adjust the value according to actual needs.

[0098] Specifically, the surface roughness is the ratio of the result of subtracting the minimum height from the maximum height of the abrasive grains of the grinding wheel surface image from the average height of the abrasive grains.

[0099] Specifically, the data optimization module determines the optimization mode of the grinding wheel 504 processing process according to the comparison result of the ratio of the surface roughness to the preset surface roughness and the preset ratio 0.38 under the condition that the taper hole processing is unqualified.

[0100] If the ratio is less than or equal to the preset ratio, it is determined to increase the grinding wheel speed to a corresponding value by a preset grinding wheel speed adjustment coefficient 1.05;

[0101] If the ratio is greater than the preset ratio, it is determined to increase the grinding wheel linear speed to a corresponding value by a preset grinding wheel linear speed adjustment coefficient 1.09;

[0102] The ratio is the ratio of the surface roughness to the preset surface roughness.

[0103] In the embodiment of the application, the preset ratio is 0.38, but the above-mentioned value is not limited thereto, and the person skilled in the art can also adjust the value according to actual needs.

[0104] In the embodiment of the application, the increased grinding wheel speed is the product of the grinding wheel speed and the preset grinding wheel speed adjustment coefficient 1.05, and the increased grinding wheel linear speed is the product of the grinding wheel linear speed and the preset grinding wheel linear speed adjustment coefficient 1.09.

[0105] Specifically, the application determines the qualification of the taper hole processing by comparing the surface roughness of the taper hole with the preset surface roughness, and optimizes the grinding wheel 504 processing process if it is unqualified, thereby reducing the roughness of the surface of the taper hole and improving the precision and surface quality of the taper hole processing.

[0106] Thus, the technical solution of the application has been described in combination with the preferred embodiments shown in the drawings, but the person skilled in the art can easily understand that the protection scope of the application is obviously not limited to these specific embodiments. The person skilled in the art can make equivalent changes or replacements to the related technical features without departing from the principles of the application, and the technical solutions after the changes or replacements will fall within the protection scope of the application.

[0107] The above-mentioned is only the preferred embodiment of the application and is not used to limit the application; for the person skilled in the art, the application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the application shall be included in the protection scope of the application.

Claims

1. A portable cone lapping machine characterized by, The grinding mechanism is arranged on the upper portion of the longitudinal feed mechanism and comprises a spindle box, a spindle arranged at one end of the spindle box to carry the grinding wheel, and the grinding wheel arranged at one end of the spindle to process the tapered hole. The control mechanism is connected with the transverse feed mechanism, the longitudinal feed mechanism, the grinding mechanism, and the detection mechanism respectively, and comprises a data analysis module for analyzing the sound fluctuation of the grinding wheel during grinding, an image analysis module for analyzing the uniformity of abrasive particle distribution of the grinding wheel surface image to determine the wear degree of the grinding wheel, and a parameter adjustment module for determining the increase of the processing interval based on the correlation between the sound intensity and the abrasive particle distribution density. The data analysis module determines that the sound fluctuation of the grinding wheel during grinding is not in a reasonable range based on the comparison result that the sound fluctuation characteristic parameter obtained from the sound data is greater than the preset sound fluctuation characteristic parameter under the condition of obtaining the sound data. The image analysis module determines that the sound intensity and the abrasive particle distribution density are positively correlated when the sound fluctuation is not in a reasonable range according to the comparison result that the distribution density evaluation value of the grinding wheel surface image is less than or equal to the preset distribution density evaluation value, or determines that the sound intensity and the abrasive particle distribution density are negatively correlated when the sound fluctuation is not in a reasonable range according to the comparison result that the distribution density evaluation value of the grinding wheel surface image is greater than the preset distribution density evaluation value. The parameter adjustment module determines to increase the processing interval by a first preset interval adjustment coefficient based on the comparison result that the relative difference absolute value of the distribution density evaluation value and the preset distribution density evaluation value is less than or equal to the preset relative difference absolute value under the condition that the sound intensity and the abrasive particle distribution density are correlated when the sound fluctuation is not in a reasonable range, or determines to increase the processing interval by a second preset interval adjustment coefficient based on the comparison result that the relative difference absolute value of the distribution density evaluation value and the preset distribution density evaluation value is greater than the preset relative difference absolute value. The transverse feed mechanism comprises a transverse body arranged on the upper portion of the column, a transverse tool holder arranged on the transverse body to perform transverse feeding, and a transverse slide box arranged at one end of the transverse tool holder to drive the transverse tool holder to reciprocate. The longitudinal feed mechanism comprises a longitudinal body arranged at the top end of the rotary seat, a longitudinal tool holder arranged on the longitudinal body to perform longitudinal feeding, and a longitudinal slide box arranged at one end of the longitudinal tool holder to drive the longitudinal tool holder to reciprocate. ​ 2. The portable cone lapping machine of claim 1, wherein, ​ 3. The portable cone lapping machine of claim 2, wherein, ​ 4. The portable cone lapping machine of claim 2, wherein, ​ 5. The portable cone lapping machine according to any one of claims 1 to 4, wherein The control mechanism further comprises a data acquisition module configured to acquire sound data of the sound sensor and a grinding wheel surface image of the image acquisition device, and the data analysis module is configured to determine, based on a comparison result that a sound fluctuation representation parameter obtained from the sound data is less than or equal to a preset sound fluctuation representation parameter, that sound fluctuation of the grinding wheel during the grinding process is within a reasonable range when a condition of acquiring the sound data is met. The image analysis module is configured to determine that the grinding wheel wear degree is unqualified based on a comparison result that a uniformity of abrasive particle distribution of the grinding wheel surface image when the sound fluctuation is within the reasonable range is greater than a preset uniformity of abrasive particle distribution.

6. The portable cone lapping machine of claim 5, wherein, The parameter adjustment module is configured to determine to reduce the feed speed of the grinding wheel by a first preset feed speed adjustment coefficient based on a comparison result that a difference between the uniformity of abrasive particle distribution and the preset uniformity of abrasive particle distribution is less than or equal to a preset difference, or to reduce the feed speed of the grinding wheel by a second preset feed speed adjustment coefficient based on a comparison result that the difference between the uniformity of abrasive particle distribution and the preset uniformity of abrasive particle distribution is greater than the preset difference when the grinding wheel wear degree is unqualified.

7. The portable cone lapping machine of claim 1, wherein, The control mechanism further comprises a data processing module configured to determine that the taper hole processing is unqualified based on a comparison result that a surface roughness of the taper hole is greater than a preset surface roughness when the adjustment mode is determined.

8. The portable cone lapping machine of claim 1, wherein, The control mechanism further comprises a data optimization module configured to determine to increase the grinding wheel speed by a preset grinding wheel speed adjustment coefficient based on a comparison result that a ratio between the surface roughness and the preset surface roughness is less than or equal to a preset ratio, or to increase the grinding wheel linear speed by a preset grinding wheel linear speed adjustment coefficient based on a comparison result that the ratio between the surface roughness and the preset surface roughness is greater than the preset ratio when the taper hole processing is unqualified.

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