Precise lubricating grease coating device for lead screw and operation method

Abstract

The invention discloses a lead screw precise lubricating grease coating device which comprises a lubricating grease coating device body, a lubricating grease coating mechanism is arranged on the lubricating grease coating device body, and a lead screw body is used on the lubricating grease coating mechanism in a matched mode. The lubricating grease coating mechanism comprises a coating box, the coating box is slidably installed on the lubricating grease coating device body, a lubricating grease storage box is fixedly installed on the coating box, hydraulic power in a feeding pipe is started, lubricating grease is pumped into the feeding pipe from the lubricating grease storage box and then conveyed into a coating piece, and the lubricating grease is coated on the coating piece. Lubricating grease is smeared to the outer surface of a lead screw body through a discharging opening, then an operation rotating disc is rotated to drive a pushing threaded rod to rotate, a connecting piece can drive a smearing box to move in the horizontal direction, and therefore lubricating grease smearing treatment on the outer surface of the lead screw body is achieved, and smearing treatment on multiple lead screw bodies can be conducted at a time; and the purpose of improving the practicability of the precise lubricating grease coating device for the lead screw is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of screw rods, and in particular relates to a screw rod precision grease coating device and an operating method. Background Art

[0002] The screw rod is a mechanical transmission component that converts rotational motion into linear motion. During the operation of the screw rod, relative motion will occur between the threads. By applying grease, an oil film can be formed on the contact surface to reduce the friction coefficient, reduce the wear of parts, and extend the service life of the screw rod. For example, in the screw rod of a machine tool, long-term high-load operation without good lubrication can easily lead to wear on the screw rod surface and affect the processing accuracy.

[0003] The structure of the existing screw precision grease coating device is too simple, and can only coat a single screw at a time, resulting in low practicality of the overall device. In addition, the existing screw precision grease coating device has no reasonable usage method during use, resulting in low grease coating efficiency for the screw. Therefore, the present invention proposes a screw precision grease coating device and an operating method. Summary of the invention

[0004] The object of the present invention is to provide a device for precisely applying grease to a screw rod, so as to solve the problems of low practicability of the overall device proposed in the above-mentioned background technology and low efficiency of applying grease to the screw rod.

[0005] In a first aspect, the present invention provides a screw rod precision grease coating device, comprising:

[0006] It comprises a grease application device body, on which a grease application mechanism is provided, and a screw rod body is used in conjunction with the grease application mechanism;

[0007] The grease applying mechanism includes a coating box, which is slidably mounted on the grease applying device body, a grease storage box is fixedly mounted on the coating box, a push threaded rod is rotatably inserted inside the grease applying device body, a connecting piece is fixedly mounted on the side of the coating box close to the push threaded rod, the connecting piece is threadedly sleeved on the outer surface of the push threaded rod, a plurality of coating pieces are arranged inside the coating box, the coating pieces are used in conjunction with a screw rod body, a support piece is detachably mounted on the grease applying device body, and the support piece is used in conjunction with a side of the screw rod body away from the coating box.

[0008] In a possible implementation of the first aspect, an operating turntable is fixedly mounted on one end of the advancing threaded rod away from the support member, the outer surface of the operating turntable is covered with anti-slip grooves, a plurality of placement grooves are opened on the support member, and the screw rod body is used in conjunction with the placement grooves.

[0009] In a possible implementation of the first aspect, a slide groove is provided on the body of the grease application device, and the connecting member is used in conjunction with the slide groove.

[0010] In a possible implementation of the first aspect, a feed pipe is provided between the grease storage box and the smear member.

[0011] In a possible implementation manner of the first aspect, the smearing member is a hollow structure, and a plurality of discharge ports are provided on the inner side of the smearing member.

[0012] In a possible implementation of the first aspect, a plurality of universal wheels are provided on the grease coating device body, a collecting slot is provided at the bottom of the grease coating device body, and a bottom surface of the grease coating device body close to the screw rod body is an inclined structure.

[0013] Compared with the prior art, the present invention provides a screw rod precision grease coating device having the following features:

[0014] Beneficial effects:

[0015] 1. When in use, start the hydraulic power in the feed pipe, pump the grease from the grease storage box into the feed pipe, and then transport it to the inside of the coating member. The grease is coated on the outer surface of the screw body through the discharge port, and then the operating dial is turned to drive the propulsion threaded rod to rotate. The connecting member will drive the coating box to move horizontally, so as to realize the grease coating treatment on the outer surface of the screw body. Multiple screw bodies can be coated at one time, thereby achieving the purpose of improving the practicality of the screw precision grease coating device;

[0016] Second, the multiple outlets on the inner side of the smearing piece can apply grease to the screw body in all directions. The bottom surface of the grease applying device body is an inclined structure, which can collect the grease dripping from the surface of the screw body to avoid the problem of material waste.

[0017] In a second aspect, the present invention provides an operating method of a screw rod precision grease coating device, comprising:

[0018] Acquire an application scenario corresponding to the screw body, determine a screw coordination device of the screw body from the application scenario, collect device operation data corresponding to the screw coordination device, and analyze the screw performance corresponding to the screw body based on the device operation data;

[0019] Capturing an image of the screw body to obtain an image of the screw body, extracting a screw wear mark state indicator of the screw body from the image of the screw body, calculating a wear metering factor corresponding to the screw body based on the screw wear mark state indicator, and determining a grease leakage amount corresponding to the screw body based on the wear metering factor;

[0020] Based on the grease leakage and the screw performance, the grease filling amount corresponding to the screw body is calculated, and the feed control parameters of the feed pipe are set according to the grease filling amount. Based on the feed control parameters, the grease coating process of the screw body is performed to obtain the coating result.

[0021] In a possible implementation of the second aspect, analyzing the screw performance corresponding to the screw body based on the equipment operation data includes:

[0022] Performing data purification on the device operation data to obtain purified operation data;

[0023] Extracting operation characteristics corresponding to the screw cooperative device from the purification operation data;

[0024] Calculating the functional attenuation coefficient of the screw rod cooperative device according to the operating characteristics;

[0025] Calculating a functional correlation coefficient between the screw body and the screw cooperative device;

[0026] The screw performance corresponding to the screw body is analyzed by combining the function association coefficient and the function attenuation coefficient.

[0027] In a possible implementation of the second aspect, determining the grease dissipation amount corresponding to the screw body based on the wear metering factor includes:

[0028] Collecting body parameters of the screw body, and calculating the surface contact area corresponding to the screw body according to the body parameters;

[0029] Determine the contact limit corresponding to the screw body according to the surface contact area, and obtain the type of grease used by the screw body;

[0030] Querying the grease density corresponding to the grease type, and measuring the grease thickness value on the surface of the screw body;

[0031] In combination with the contact limit, the grease density, the wear metering factor and the grease thickness value, the grease dissipation amount corresponding to the screw body is determined by the following formula:

[0032]

[0033] Among them, A represents the grease dissipation corresponding to the screw body, d and t represent the boundary values ​​of the contact limit, α represents the grease density, and β represents the wear measurement factor. represents the grease thickness value, δ represents the partial differential sign, E represents the pressure value corresponding to any point in the contact boundary, and F represents the function value corresponding to the direction of the contact boundary.

[0034] In a possible implementation of the second aspect, the step of calculating the grease filling amount corresponding to the screw body based on the grease dissipation amount and the screw performance includes:

[0035] Calculating the grease requirement corresponding to the screw body according to the screw performance;

[0036] Calculating the grease escape rate of the screw body based on the grease escape amount;

[0037] Measuring the working cycle of the screw body;

[0038] The grease filling amount corresponding to the screw body is calculated in combination with the working cycle, the grease escape rate and the grease demand.

[0039] It can be seen that the present invention determines the screw coordination device of the screw body from the application scenario, and then obtains the equipment that has a correlation with the screw body during use, and collects the equipment operation data corresponding to the screw coordination device. The data of the equipment operation record of the screw coordination device can be understood, which provides a basis for the subsequent analysis of the screw performance; secondly, the present invention extracts the screw wear mark indication of the screw body from the screw body image, and can obtain the characteristics of the surface wear of the screw body, which is convenient for the calculation and processing of the subsequent wear measurement factor. Furthermore, the present invention calculates the grease filling amount corresponding to the screw body based on the grease escape amount and the screw performance, so as to understand the amount of grease required to be added to the screw body, thereby improving the subsequent grease application efficiency of the screw body. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0041] Figure 1 A schematic diagram of the three-dimensional structure of a screw rod precision grease coating device according to an embodiment of the present invention;

[0042] Figure 2 A schematic cross-sectional view of a device for precisely applying grease to a screw rod according to an embodiment of the present invention;

[0043] Figure 3 A schematic cross-sectional view of a coating box structure according to an embodiment of the present invention;

[0044] Figure 4 A schematic diagram of the structure of a smear member according to an embodiment of the present invention;

[0045] Figure 5 A flow chart of a method for using a screw rod precision grease coating device proposed in one embodiment of the invention;

[0046] In the figure: 1. grease application device body; 10. screw rod body; 11. universal wheel; 12. collecting slot; 13. slide; 2. grease application mechanism; 21. grease application box; 22. grease storage box; 23. push threaded rod; 24. operating turntable; 25. connecting piece; 26. supporting piece; 27. placement slot; 28. grease application piece; 29. ​​feeding pipe; 211. discharge port. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0048] See also Figure 1 , which is a schematic diagram of the three-dimensional structure of the screw precision grease coating device proposed in the present invention, including a grease coating device body 1, on which a grease coating mechanism 2 is provided, and a screw body 10 is used in conjunction with the grease coating mechanism 2. The grease coating device body 1 is provided with a plurality of universal wheels 11, and the grease coating device body 1 can be moved by the universal wheels 11.

[0049] See also Figure 2, is a cross-sectional schematic diagram of a screw precision grease coating device proposed in an embodiment of the present invention, the grease coating mechanism 2 includes a coating box 21, the coating box 21 is slidably mounted on the grease coating device body 1, a grease storage box 22 is fixedly mounted on the coating box 21 for storing grease, a push threaded rod 23 is rotatably inserted inside the grease coating device body 1, a connector 25 is fixedly mounted on the side of the coating box 21 close to the push threaded rod 23, the connector 25 is threadedly sleeved on the outer surface of the push threaded rod 23, the rotation of the push threaded rod 23 can drive the connector 25 and the coating box 21 to move horizontally, so as to apply grease to the screw body 10, a support member 26 is detachably mounted on the grease coating device body 1, The screw body 10 is supported and limited, and the side of the screw body 10 away from the coating box 21 is used in conjunction with the support member 26. A slide groove 13 is provided on the grease coating device body 1, and the connecting member 25 is used in conjunction with the slide groove 13. The connecting member 25 can slide in the slide groove 13. A collecting groove 12 is provided at the bottom of the grease coating device body 1, and the bottom surface of the grease coating device body 1 close to the screw body 10 is an inclined structure, which is convenient for collecting grease dripping from the surface of the screw body 10. An operating turntable 24 is fixedly installed at one end of the advancement threaded rod 23 away from the support member 26, and the outer surface of the operating turntable 24 is covered with anti-slip grooves. A plurality of placement grooves 27 are provided on the support member 26, and the screw body 10 is used in conjunction with the placement grooves 27.

[0050] See also Figure 3 , is a schematic cross-sectional view of the structure of the smear box proposed in one embodiment of the present invention, wherein a plurality of smear members 28 are provided inside the smear box 21, and the smear members 28 are used in conjunction with the screw body 10, and a feed pipe 29 is provided between the grease storage box 22 and the smear members 28, and a hydraulic power is provided inside the feed pipe 29 to push the grease into the interior of the smear members 28, and the smear box 21 drives the smear members 28 to move horizontally along the outer surface of the screw body 10, thereby achieving the purpose of applying the grease.

[0051] See also Figure 4 , is a schematic diagram of the smear member structure proposed in an embodiment of the present invention, wherein the smear member 28 is a hollow structure, and a plurality of discharge ports 211 are provided on the inner side of the smear member 28, so that grease can be applied to the screw body 10 in all directions.

[0052] The working principle and use process of a screw precision grease coating device of the present invention are as follows: when in use, one end of the screw body 10 is inserted into the interior of the smear member 28, the support member 26 is installed on the grease coating device body 1, and the other end of the screw body 10 is placed in the placement groove 27 on the support member 26, and the hydraulic power in the feed pipe 29 is started to pump grease from the grease storage box 22 into the feed pipe 29, and then transported to the interior of the smear member 28, and the grease is smeared on the outer surface of the screw body 10 through the discharge port 211, and then the operating turntable 24 is rotated to drive the propulsion threaded rod 23 to rotate, and the connecting member 25 will drive the smear box 21 to move horizontally, so as to realize the grease coating treatment on the outer surface of the screw body 10. After the coating is completed, the smear box 21 is moved to the original position by rotating the operating turntable 24 in the opposite direction, and finally the screw body 10 is taken out, and the grease coating device body 1 is left to stand for a period of time, so that the dripping grease flows out through the collecting slot 12 and is collected by a collecting device, such as a collecting bucket.

[0053] See also Figure 5 FIG. 1 is an operation method of a screw rod precision grease coating device according to an embodiment of the present invention, comprising:

[0054] S1. Obtain an application scenario corresponding to the screw body, determine a screw coordination device of the screw body from the application scenario, collect device operation data corresponding to the screw coordination device, and analyze the screw performance corresponding to the screw body based on the device operation data.

[0055] The present invention determines the screw rod cooperative device of the screw rod body from the application scenario, and then obtains the equipment that has a correlation with the screw rod body during use, collects the equipment operation data corresponding to the screw rod cooperative device, and can understand the equipment operation record data of the screw rod cooperative device, which provides a basis for the subsequent analysis of the screw rod performance, wherein the application scenario is the specific working environment of the screw rod body, such as the precision transmission system in a CNC machine tool, and the screw rod cooperative device is a device that has an associated relationship with the screw rod body during work, such as a drive motor, which provides a power source for the rotation of the screw rod, and the equipment operation data is the record data of the equipment work corresponding to the screw rod cooperative device. Furthermore, determining the screw rod cooperative device of the screw rod body from the application scenario can be achieved through a functional analysis method, which analyzes in detail the main functions of the screw rod body in the application scenario and the expected motion effects to be achieved, so as to determine the cooperative equipment required to achieve these functions and motions, such as a motor for providing power, a guide rail for achieving guidance, etc.; the collection of the equipment operation data corresponding to the screw rod cooperative device can be achieved through sensors, such as temperature sensors, pressure sensors, and speed sensors.

[0056] The present invention analyzes the screw performance corresponding to the screw body based on the equipment operation data, so as to understand the working characteristics and performance of the screw body in work, and further provide a basis for calculating the subsequent grease filling amount, wherein the screw performance is a description of the specific performance of the screw body in work.

[0057] As an embodiment of the present invention, the analysis of the screw performance corresponding to the screw body based on the equipment operation data includes: performing data purification processing on the equipment operation data to obtain purified operation data, extracting operation characteristics corresponding to the screw cooperative device from the purified operation data, calculating the functional attenuation coefficient of the screw cooperative device according to the operation characteristics, and calculating the functional correlation coefficient between the screw body and the screw cooperative device, and analyzing the screw performance corresponding to the screw body by combining the functional correlation coefficient and the functional attenuation coefficient.

[0058] Among them, the purification operation data is the data obtained after the abnormal data and missing value data in the equipment operation data are cleaned, the operation characteristics are the operation characterizations of the screw cooperative equipment in the purification operation data, such as the start and stop frequency of the motor, the current fluctuation range during operation, and the speed change curve. The function attenuation coefficient represents the degree of attenuation of the equipment function of the screw cooperative equipment, and the function correlation coefficient represents the degree of influence of the screw body on the equipment function of the screw cooperative equipment.

[0059] Optionally, data purification processing of the device operation data can be implemented by a box plot method; extraction of operation characteristics corresponding to the screw rod cooperative device from the purified operation data can be implemented by a convolutional neural network; characteristic quantization values ​​are obtained by quantizing the operation characteristics, and historical operation data of the screw rod cooperative device are collected, historical operation characteristics corresponding to the historical operation data are extracted, and historical operation characteristics are quantified to obtain historical characteristic quantization values, and characteristic differences between characteristic quantization values ​​and historical characteristic quantization values ​​are calculated, and the characteristic differences are averaged to obtain the functional attenuation coefficient of the screw rod cooperative device; the functional correlation coefficient between the screw rod body and the screw rod cooperative device is obtained. The calculation can be achieved through a correlation analysis method, by comparing the linear or nonlinear relationship between the operating parameters of the screw body and the operating parameters of the screw cooperative device, so as to determine the functional correlation coefficient; combining the functional correlation coefficient and the functional attenuation coefficient, the step of analyzing the screw performance corresponding to the screw body is: if the functional correlation coefficient is high, it means that the screw body has a greater impact on the cooperative device. At this time, combined with the functional attenuation coefficient, if the attenuation coefficient is large, it indicates that the function of the cooperative device has obviously declined, and then it is determined that the performance of the screw body has declined, such as severe wear, decreased accuracy, etc. Conversely, if the functional attenuation coefficient is small, it may indicate that the performance of the screw body is relatively good.

[0060] S2. Capture an image of the screw body to obtain an image of the screw body, extract a screw wear mark indicator of the screw body from the image of the screw body, calculate a wear measurement factor corresponding to the screw body based on the screw wear mark indicator, and determine a grease loss amount corresponding to the screw body based on the wear measurement factor.

[0061] The present invention can obtain the surface wear characteristics of the screw body by extracting the screw wear mark indication of the screw body from the screw body image, thereby facilitating the calculation and processing of the subsequent wear measurement factor, wherein the screw body image is the surface image of the screw body, and the screw wear mark indication is the wear characteristic of the surface of the screw body caused by working reasons. Furthermore, the image acquisition of the screw body can be achieved by a camera device, such as an industrial camera.

[0062] As an embodiment of the present invention, the method of extracting the screw wear mark indication of the screw body from the screw body image includes: denoising the screw body image to obtain a denoised screw image, performing background segmentation on the denoised screw image to obtain a screw body image, performing brightness equalization on the screw body image to obtain a balanced screw image, performing sharpening on the balanced screw image to obtain a sharpened screw image, extracting screw texture features of the sharpened screw image, performing wear morphology analysis on the screw texture features to obtain the screw wear mark indication of the screw body.

[0063] Among them, the denoised screw image is the image obtained after removing the noise interference in the screw body image, the screw main body image is the image obtained after removing the background image in the denoised screw image, the balanced screw image is the image obtained after the brightness of the screw main image is enhanced, the sharpened screw image is the image obtained after the edge information of the balanced screw image is enhanced, and the screw texture feature is the surface texture representation corresponding to the sharpened screw image.

[0064] Furthermore, the denoising processing of the screw body image can be achieved through a low-pass filter; the background segmentation processing of the denoised screw image can be achieved through a threshold segmentation method; the brightness equalization processing of the screw body image can be achieved through a histogram equalization method; the sharpening processing of the balanced screw image can be achieved through a Laplace sharpening method; the screw texture features of the sharpened screw image can be achieved through a grayscale co-occurrence matrix method; by matching the screw texture features with the features in a preset wear morphology table, the wear type of the screw body is obtained according to the matching results, and the features corresponding to the wear type are analyzed to obtain the screw wear mark indication.

[0065] The present invention calculates the wear measurement factor corresponding to the screw body based on the screw wear mark indicator, so as to obtain a quantitative value of the wear degree of the screw body, thereby facilitating the determination of the subsequent grease loss amount, wherein the wear measurement factor is a description of the wear degree corresponding to the screw body. Furthermore, the indication characteristic value corresponding to the screw wear mark indicator can be calculated, the indication type corresponding to the screw wear mark indicator can be analyzed, and an indication matrix corresponding to the indication type can be constructed in combination with the screw wear mark indicator, and the matrix value corresponding to the indication matrix can be calculated. The weight coefficient corresponding to the indication matrix is ​​assigned according to the matrix value, and the indication vector corresponding to the screw wear mark indicator is extracted. The weight coefficient and the indication vector are multiplied to obtain the wear measurement factor corresponding to the screw body.

[0066] The present invention determines the grease loss amount corresponding to the screw body based on the wear metering factor, so as to understand the degree of grease loss of the screw body, thereby facilitating the subsequent calculation and processing of the grease filling amount, wherein the grease loss amount represents the degree of grease loss corresponding to the screw body.

[0067] As an embodiment of the present invention, the determination of the grease dissipation amount corresponding to the screw body based on the wear metering factor includes: collecting body parameters of the screw body, calculating the surface contact area corresponding to the screw body according to the body parameters, determining the contact limit corresponding to the screw body according to the surface contact area, obtaining the type of grease used by the screw body, querying the grease density corresponding to the grease type, and measuring the grease thickness value on the surface of the screw body, combining the contact limit, the grease density, the wear metering factor and the grease thickness value, and determining the grease dissipation amount corresponding to the screw body by the following formula:

[0068]

[0069] Among them, A represents the grease dissipation corresponding to the screw body, d and t represent the boundary values ​​of the contact limit, α represents the grease density, and β represents the wear measurement factor. represents the grease thickness value, δ represents the partial differential sign, E represents the pressure value corresponding to any point in the contact boundary, and F represents the function value corresponding to the direction of the contact boundary.

[0070] Among them, the body parameters are the basic property parameters of the screw body, such as length and thread pitch, the contact limit is the farthest or closest position boundary that the screw body can reach during reciprocating or rotational motion at work, and the grease thickness value is the thickness of the grease on the surface of the screw body.

[0071] Furthermore, the collection of the body parameters of the screw body can be achieved through an electronic micrometer; the calculation of the surface contact area corresponding to the screw body can be achieved through finite element analysis, and finite element modeling is performed on the screw body, and the surface contact area of ​​the entire screw is approximately calculated by analyzing the surface area of ​​the grid unit; the measurement of the grease thickness value on the surface of the screw body can be achieved through ultrasonic measurement.

[0072] S3. Based on the grease leakage and the screw performance, the grease filling amount corresponding to the screw body is calculated, and the feed control parameters of the feed pipe are set according to the grease filling amount. Based on the feed control parameters, the grease coating process is performed on the screw body to obtain the coating result.

[0073] The present invention calculates the grease filling amount corresponding to the screw body based on the grease escape amount and the screw performance, so as to understand the amount of grease required to be added to the screw body, thereby improving the subsequent grease application efficiency of the screw body, wherein the grease filling amount is the grease filling amount corresponding to the screw body.

[0074] As an embodiment of the present invention, the grease filling amount corresponding to the screw body is calculated based on the grease leakage amount and the screw performance, including: calculating the grease demand corresponding to the screw body according to the screw performance, calculating the grease leakage rate of the screw body based on the grease leakage amount, measuring the working cycle of the screw body, and calculating the grease filling amount corresponding to the screw body in combination with the working cycle, the grease leakage rate and the grease demand.

[0075] Among them, the grease demand is the basic amount of grease required for the normal operation of the screw body, the grease escape rate represents the grease loss rate of the screw body per unit time, and the working cycle is the continuous period when the screw body works subsequently.

[0076] Optionally, the performance difference can be calculated by comparing the performance of the screw rod with the performance of a standard screw rod. The grease requirement corresponding to the screw rod body can be determined by analogical reasoning based on the performance difference. Existing screw rod cases with similar performance differences can be found, and the grease requirement of the screw rod body can be evaluated with reference to their grease requirements to determine the grease requirement corresponding to the screw rod body. The ratio of the grease leakage amount to the working time during statistics can be calculated to obtain the grease leakage rate of the screw rod body. The preprocessing task of the screw rod body can be obtained, and the working cycle of the screw rod body can be determined based on the preprocessing task. The product of the working cycle and the grease leakage rate can be calculated to obtain the total amount of grease leakage, and the total amount of grease leakage and the grease requirement can be added to obtain the grease filling amount corresponding to the screw rod body.

[0077] The present invention performs a grease coating process on the screw body based on the feed control parameters, which can improve the grease coating process efficiency of the screw body, wherein the feed control parameters are parameters for the feed pipe to control the input of grease, such as the grease input quantity or input speed of the feed pipe. Furthermore, the setting steps of the feed control parameters of the feed pipe are: analyzing the characteristics of the feed pipe, understanding the flow characteristics, maximum and minimum feed speeds and other parameters of the feed pipe, calculating the feeding time, and calculating the feeding time according to the grease filling amount and the average feeding speed of the feed pipe. The feeding speed is set, and a constant speed feed can be selected, or different speeds can be used according to different stages, such as high-speed feeding at the beginning, and reducing the speed for precise control when approaching the target value, so as to obtain the feeding control parameters of the input pipe; based on the feed control parameters, the rotation of the propulsion threaded rod is driven by operating the turntable, and then the coating box is driven to move, so as to perform the grease coating process on the screw body and obtain the coating result.

[0078] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A screw rod precision grease coating device, comprising a grease coating device body (1), characterized in that: The grease applying device body (1) is provided with a grease applying mechanism (2), and the grease applying mechanism (2) is used in conjunction with a screw rod body (10); The grease applying mechanism (2) comprises a coating box (21), the coating box (21) is slidably mounted on the grease applying device body (1), a grease storage box (22) is fixedly mounted on the coating box (21), a push threaded rod (23) is rotatably inserted inside the grease applying device body (1), a connecting piece (25) is fixedly mounted on a side of the coating box (21) close to the push threaded rod (23), the connecting piece (25) is threadedly sleeved on the outer surface of the push threaded rod (23), a plurality of coating pieces (28) are arranged inside the coating box (21), the coating pieces (28) are used in conjunction with the screw body (10), a support piece (26) is detachably mounted on the grease applying device body (1), and the side of the screw body (10) away from the coating box (21) is used in conjunction with the support piece (26).

2. A screw rod precision grease coating device as claimed in claim 1, characterized in that: An operating turntable (24) is fixedly mounted on one end of the advancing threaded rod (23) away from the supporting member (26); the outer surface of the operating turntable (24) is covered with anti-slip grooves; a plurality of placement grooves (27) are provided on the supporting member (26); and the screw rod body (10) is used in conjunction with the placement grooves (27).

3. A screw rod precision grease coating device as claimed in claim 1, characterized in that: The grease application device body (1) is provided with a slide groove (13), and the connecting piece (25) is used in conjunction with the slide groove (13).

4. A screw rod precision grease coating device as claimed in claim 1, characterized in that: A feed pipe (29) is provided between the grease storage box (22) and the smear member (28).

5. A screw rod precision grease coating device as claimed in claim 1, characterized in that: The smearing member (28) is a hollow structure, and a plurality of discharge ports (211) are provided on the inner side of the smearing member (28).

6. A screw rod precision grease coating device as claimed in claim 1, characterized in that: The grease coating device body (1) is provided with a plurality of universal wheels (11), the bottom of the grease coating device body (1) is provided with a collecting slot (12), and the bottom surface of the grease coating device body (1) close to the screw rod body (10) is an inclined structure.

7. An operating method of a screw rod precision grease coating device, according to any one of claims 1 to 6, characterized in that: The operation method comprises: Acquire an application scenario corresponding to the screw body, determine a screw coordination device of the screw body from the application scenario, collect device operation data corresponding to the screw coordination device, and analyze the screw performance corresponding to the screw body based on the device operation data; Capturing an image of the screw body to obtain an image of the screw body, extracting a screw wear mark state indicator of the screw body from the image of the screw body, calculating a wear metering factor corresponding to the screw body based on the screw wear mark state indicator, and determining a grease leakage amount corresponding to the screw body based on the wear metering factor; Based on the grease leakage and the screw performance, the grease filling amount corresponding to the screw body is calculated, and the feed control parameters of the feed pipe are set according to the grease filling amount. Based on the feed control parameters, the grease coating process of the screw body is performed to obtain the coating result.

8. The method according to claim 7, characterized in that The analyzing the screw performance corresponding to the screw body based on the equipment operation data includes: Performing data purification on the device operation data to obtain purified operation data; Extracting operation characteristics corresponding to the screw cooperative device from the purification operation data; Calculating the functional attenuation coefficient of the screw rod cooperative device according to the operating characteristics; Calculating a functional correlation coefficient between the screw body and the screw cooperative device; The screw performance corresponding to the screw body is analyzed by combining the function association coefficient and the function attenuation coefficient.

9. The method according to claim 7, characterized in that: The step of determining the amount of grease dissipation corresponding to the screw body based on the wear metering factor includes: Collecting body parameters of the screw body, and calculating the surface contact area corresponding to the screw body according to the body parameters; Determine the contact limit corresponding to the screw body according to the surface contact area, and obtain the type of grease used by the screw body; Querying the grease density corresponding to the grease type, and measuring the grease thickness value on the surface of the screw body; In combination with the contact limit, the grease density, the wear metering factor and the grease thickness value, the grease dissipation amount corresponding to the screw body is determined by the following formula: Among them, A represents the grease dissipation corresponding to the screw body, d and t represent the boundary values ​​of the contact limit, α represents the grease density, and β represents the wear measurement factor. represents the grease thickness value, δ represents the partial differential sign, E represents the pressure value corresponding to any point in the contact boundary, and F represents the function value corresponding to the direction of the contact boundary.

10. The method according to claim 7, characterized in that The step of calculating the amount of grease filling corresponding to the screw body based on the grease dissipation amount and the screw performance includes: Calculating the grease requirement corresponding to the screw body according to the screw performance; Calculating the grease escape rate of the screw body based on the grease escape amount; Measuring the working cycle of the screw body; The grease filling amount corresponding to the screw body is calculated in combination with the working cycle, the grease escape rate and the grease demand.

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