Roller grinding device, method, medium and program product

Abstract

The invention discloses a roller grinding device and method, a medium and a program product, and is applied to the technical field of steel production. The roller grinding device comprises a grinding machine main body; the grinding wheel assembly is arranged on the grinding machine body and comprises a grinding wheel capable of rotating around the axis parallel to the first direction relative to the grinding machine body. The roller driving mechanism is arranged on the grinding machine body and used for driving the roller to rotate relative to the grinding machine body around the axis parallel to the first direction; the grinding wheel moving mechanism is connected with the grinding wheel assembly, the grinding wheel moving mechanism and the roller driving mechanism are arranged side by side in the second direction, and the grinding wheel moving mechanism is used for driving the grinding wheel assembly to move in the first direction and / or the second direction; the grinding wheel comprises a cubic boron nitride grinding wheel. According to the roller grinding device, the cubic boron nitride grinding wheel with high hardness is adopted, the abrasion resistance of the grinding wheel can be enhanced, time waste caused by frequent replacement of the grinding wheel is reduced, and the roller grinding efficiency is effectively improved.

Description

Technical Field

[0001] The present application belongs to the field of steel production technology, and in particular relates to a roll grinding device, method, medium and program product. Background Art

[0002] In steel production, a hot rolling mill is a continuous production line used to continuously produce hot-rolled strip steel. Its process includes raw material heating, rough rolling, finishing rolling, cooling, and coiling. During the rolling of electrical steel on a hot rolling mill, roll changes are frequent, and the rolls that come off the line typically require grinding on a grinding machine.

[0003] The corundum grinding wheels used in conventional grinding machines for roller grinding suffer from rapid wear, necessitating frequent wheel replacement. Each wheel replacement requires the operator to remove the old wheel, install the new one, calibrate the new wheel's position, and dispose of the old one. This cumbersome and time-consuming process not only prolongs the grinding cycle of a single roller but also reduces grinding efficiency. Summary of the Invention

[0004] The embodiments of the present application provide a roll grinding device, method, medium and program product, which can solve the problem that grinding a roll with a corundum grinding wheel will reduce the roll grinding efficiency.

[0005] In a first aspect, an embodiment of the present application provides a roll grinding device, the roll grinding device comprising:

[0006] Grinding machine body;

[0007] A grinding wheel assembly is provided on the grinding machine body, and the grinding wheel assembly includes a grinding wheel rotatable relative to the grinding machine body about an axis parallel to the first direction;

[0008] A roller driving mechanism is provided on the grinding machine body and is used to drive the roller to rotate relative to the grinding machine body around an axis parallel to the first direction;

[0009] a grinding wheel moving mechanism connected to the grinding wheel assembly, the grinding wheel moving mechanism and the roller driving mechanism being arranged side by side in the second direction, and the grinding wheel moving mechanism being used to drive the grinding wheel assembly to move along the first direction and / or the second direction;

[0010] Wherein, the grinding wheel comprises a cubic boron nitride grinding wheel.

[0011] In some possible implementations of the embodiments of the present application, the Vickers hardness of the cubic boron nitride grinding wheel is L, and the range of L is 3200HV≤L≤4000HV.

[0012] In a first aspect, an embodiment of the present application provides a roll grinding method, which is applied to a roll grinding device including a cubic boron nitride grinding wheel as described in any one of the first aspects, and the roll grinding method includes:

[0013] Obtaining a grinding wheel linear velocity corresponding to each grinding stage of a cubic boron nitride grinding wheel in a plurality of grinding stages, wherein the plurality of grinding stages include a rough grinding stage, a semi-finishing grinding stage, and a finishing grinding stage;

[0014] According to the grinding wheel linear speed of the cubic boron nitride grinding wheel in each grinding stage, the grinding parameters of the roll grinding device in each grinding stage are determined. The grinding parameters include parameters for driving the roll grinding device to perform roll grinding.

[0015] In some possible implementations of the embodiments of the present application, the grinding parameters include at least one of the following: roller rotation speed, grinding wheel cycle feed depth, grinding wheel compensation feed rate, grinding wheel movement speed, and grinding wheel feed pass number;

[0016] According to the grinding wheel linear speed corresponding to each grinding stage of the cubic boron nitride grinding wheel, the grinding parameters corresponding to each grinding stage of the roll grinding device are determined, including:

[0017] According to the grinding wheel linear speed corresponding to each grinding stage of the cubic boron nitride grinding wheel, the roller rotation speed and grinding wheel moving speed corresponding to each grinding stage of the roller grinding device are adjusted to be positively correlated with the grinding wheel linear speed;

[0018] According to the grinding wheel linear speed corresponding to each grinding stage of the cubic boron nitride grinding wheel, the grinding wheel compensation feed rate corresponding to each grinding stage of the roller grinding device is adjusted to zero;

[0019] According to the grinding wheel linear speed corresponding to each grinding stage of the cubic boron nitride grinding wheel, the grinding wheel cycle feed depth corresponding to each grinding stage of the cubic boron nitride grinding wheel is adjusted to be negatively correlated with the grinding wheel linear speed, the roller rotation speed and the grinding wheel moving speed.

[0020] In some possible implementations of the embodiments of the present application, the roll grinding method further includes:

[0021] Obtaining the current roll surface profile parameters and target roll surface profile parameters of the roll to be ground, wherein the target roll surface profile parameters are the roll surface profile parameters that the roll to be ground needs to achieve after grinding is completed and are preset by the user;

[0022] determining a current grinding stage of the roll to be ground according to current roll surface profile parameters and target roll surface profile parameters, wherein the current grinding stage is one of the multiple grinding stages;

[0023] According to the grinding parameters corresponding to the current grinding stage, the roller grinding device is controlled to grind the roller to be ground.

[0024] In some possible implementations of the embodiments of the present application, the grinding parameters corresponding to the current grinding stage include first-type grinding parameters and second-type grinding parameters, the first-type grinding parameters are grinding parameters corresponding to the first roll type, the second-type grinding parameters are grinding parameters corresponding to the second roll type, the first roll type is used to characterize that the property of the roll to be ground is a high-chromium iron roll, and the second roll type is used to characterize that the property of the roll to be ground is a high-nickel-chromium infinitely chilled roll;

[0025] According to the grinding parameters corresponding to the current grinding stage, the roll grinding device is controlled to grind the roll to be ground, including:

[0026] According to the roll type of the roll to be ground, target grinding parameters corresponding to the roll type are selected from the grinding parameters corresponding to the current grinding stage, where the roll type includes a first roll type or a second roll type, and the target grinding parameters include first-category grinding parameters or second-category grinding parameters;

[0027] According to the target grinding parameters, the roll grinding device is controlled to grind the roll to be ground.

[0028] In some possible implementations of the embodiments of the present application, determining the current grinding stage of the roll to be ground according to the current roll surface profile parameters and the target roll surface profile parameters includes:

[0029] Determining the target grinding amount of the roll to be ground based on the current roll surface profile parameters and the target roll surface profile parameters;

[0030] According to the correlation between the reference grinding amount and the reference grinding stage, the reference grinding stage associated with the target grinding amount is determined as the current grinding stage.

[0031] In some possible implementations of the embodiments of the present application, controlling the roll grinding device to grind the roll to be ground according to the grinding parameters corresponding to the current grinding stage includes:

[0032] According to the grinding wheel linear speed corresponding to the current grinding stage, the cubic boron nitride grinding wheel is controlled to rotate relative to the grinding machine body around an axis parallel to the first direction;

[0033] Controlling the roller drive mechanism to drive the roller to be ground to rotate relative to the grinding machine body around an axis parallel to the first direction according to the roller rotation speed corresponding to the current grinding stage;

[0034] According to the grinding wheel movement speed, grinding wheel periodic feed depth and grinding wheel feed pass corresponding to the current grinding stage, the grinding wheel movement mechanism is controlled to drive the grinding wheel assembly, and the grinding wheel assembly is periodically driven to move along the first direction and / or the second direction to grind the roller to be ground.

[0035] In some possible implementations of the present application, the grinding wheel linear speed corresponding to the rough grinding stage is V s1 , the roller rotation speed corresponding to the rough grinding stage is V z1 The grinding wheel cycle feed depth corresponding to the rough grinding stage is H1, and the grinding wheel moving speed corresponding to the rough grinding stage is V y1 , the grinding wheel feed pass corresponding to the rough grinding stage is N1; among them, V s1 The range is 60 m / s ≤ V s1 ≤65 m / s, V z1 The range is 40 rpm≤V z1 ≤45 rpm, the range of H1 is 0.012 mm ≤ H3 ≤ 0.015 mm, V y1 The range is 3000 m / s ≤ V y1 ≤3600 m / s, N1 range is 14≤N2≤18;

[0036] The grinding wheel linear speed corresponding to the semi-finishing grinding stage is V s2 , the roller rotation speed corresponding to the semi-finishing stage is V z2 The grinding wheel cycle feed depth corresponding to the semi-finishing stage is H2, and the grinding wheel moving speed corresponding to the semi-finishing stage is V y2 , the grinding wheel feed pass corresponding to the semi-finishing grinding stage is N2; among them, V s2 The range is 50 m / s ≤ V s2 ≤60 m / s, V z2 The range is 42 rpm≤V z2 ≤47 rpm, H2 range is 0.003 mm ≤ H2 ≤ 0.006 mm, V y2 The range is 45 m / s ≤ V y2 ≤55 m / s, N2 range is 4≤N2≤6;

[0037] The linear speed of the grinding wheel corresponding to the fine grinding stage is V s3 , the roller rotation speed corresponding to the fine grinding stage is V z3 The grinding wheel cycle feed depth corresponding to the fine grinding stage is H3, and the grinding wheel moving speed corresponding to the fine grinding stage is V y3 , the grinding wheel feed pass corresponding to the fine grinding stage is N3; among them, V s3 The range is 40 m / s ≤ V s3 ≤50 m / s, V z3 The range is 45 rpm≤V z3 ≤55 rpm, H3=0 mm, V y3 The range is 1100 m / s ≤ V y3 ≤1500 m / s, the range of N3 is 2≤N3≤4.

[0038] In a third aspect, an embodiment of the present application provides a computer-readable storage medium having computer program instructions stored thereon. When the computer program instructions are executed by a processor, the roller grinding method according to any one of the second aspects is implemented.

[0039] In a fourth aspect, an embodiment of the present application provides a computer program product, which includes a computer program or instructions. When the computer program or instructions are executed by a processor, the roller grinding method as described in any one of the second aspects is implemented.

[0040] The roller grinding device, method, medium, and program product of the embodiment of the present application, when performing roller grinding, first install the roller on the grinding machine body, ensure that the roller axis is parallel to the first direction, and the grinding wheel moving mechanism drives the grinding wheel assembly to move in the second direction, so that the grinding wheel approaches the roller to the initial grinding position; then the roller driving mechanism drives the roller to rotate around the first direction axis, and the grinding wheel moving mechanism drives the grinding wheel assembly to move in the second direction to control the grinding depth, while the grinding wheel rotates at high speed to grind the roller. Among them, the grinding wheel adopts a cubic boron nitride grinding wheel. The high hardness of the cubic boron nitride grinding wheel can enhance the wear resistance of the grinding wheel and avoid frequent replacement of the grinding wheel. In this way, by reducing the number of grinding wheel replacements, the grinding time of the grinding wheel can be effectively improved, and the overall grinding efficiency of the roller can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0042] Figure 1 Shows a schematic structural diagram of a roll grinding device provided in some embodiments of the present application;

[0043] Figure 2 A schematic flow chart of a roll grinding method provided by some embodiments of the present application is shown;

[0044] Figure 3 A flowchart illustrating a specific implementation of step 220 provided in some embodiments of the present application is shown;

[0045] Figure 4 A flow chart showing a specific implementation of a roll grinding control method in a roll grinding method provided in some embodiments of the present application is shown.

[0046] Explanation of the accompanying reference numerals: 110, grinding machine body; 111, first frame; 112, second frame; 120, grinding wheel assembly; 121, grinding wheel; 130, grinding wheel moving mechanism; 131, grinding frame moving assembly; 132, large carriage moving assembly; 140, rolling roller driving mechanism; 150, measuring frame; 160, tailstock center moving mechanism; 200, rolling roller. DETAILED DESCRIPTION

[0047] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, rather than to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is merely to provide a better understanding of the present application by illustrating the examples of the present application.

[0048] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0049] It should be noted that in the embodiments of the present application, certain software, components, models and other existing solutions in the industry may be mentioned. They should be regarded as exemplary. Their purpose is only to illustrate the feasibility of implementing the technical solution of the present application, but it does not mean that the applicant has or will necessarily use the solution.

[0050] Before describing the technical solutions provided by the embodiments of the present application, in order to facilitate understanding of the embodiments of the present application, the present application first specifically describes the relevant technologies involved:

[0051] In existing roll grinding technology, the corundum grinding wheels used in grinding machines are notoriously difficult to use during roll machining due to the high hardness and wear resistance of the work roll material. This results in extremely rapid wear during the grinding process. Frequent wear significantly shortens the wheel's service life, necessitating frequent wheel replacements. Each wheel replacement requires operators to perform a series of complex and time-consuming operations, including removing the old wheel, installing the new one, and calibrating the new wheel's position. Furthermore, discarded corundum wheels are classified as industrial solid waste, requiring significant time and labor for recycling, including sorting and transportation. Frequent roll replacements and lengthy scrapping procedures not only significantly extend the grinding cycle of individual rolls but also increase the proportion of auxiliary work time, reducing the effective grinding time of the grinder and ultimately significantly reducing overall roll grinding efficiency.

[0052] In order to solve the problems in the above-mentioned related technologies, the embodiments of the present application provide a roll grinding device, method, medium and program product.

[0053] Below we first combine the attached Figure 1 , the roller grinding device provided in the embodiment of the present application is described in detail through specific examples.

[0054] Figure 1 Schematic diagram of the structure of the roll grinding device provided by some embodiments of the present application is shown. Figure 1 As shown, the roll grinding device includes a grinder body 110, a grinding wheel assembly 120, a grinding wheel moving mechanism 130, and a roll driving mechanism 140. The grinding wheel assembly 120 is disposed on the grinder body 110 and includes a grinding wheel 121 that is rotatable relative to the grinder body 110 about an axis parallel to a first direction. The first direction can be understood as the axial direction of the roll 200, i.e., a direction extending along the length of the roll 200. The roller driving mechanism 140 is arranged on the grinding machine body 110, and is used to drive the roller 200 to rotate relative to the grinding machine body 110 around an axis parallel to the first direction; the grinding wheel moving mechanism 130 is connected to the grinding wheel assembly 120, and the grinding wheel moving mechanism 130 and the roller driving mechanism 140 are arranged side by side in the second direction, and the grinding wheel moving mechanism 130 is used to drive the grinding wheel assembly 120 to move along the first direction and / or the second direction. The second direction can be understood as a horizontal direction perpendicular to the first direction, that is, the direction in which the grinding wheel 121 approaches or moves away from the roller 200; wherein, the grinding wheel 121 includes a cubic boron nitride grinding wheel.

[0055] Therefore, when performing roller grinding, the roller 200 is first mounted on the grinding machine body 110, ensuring that the roller axis is parallel to the first direction. The grinding wheel moving mechanism 130 drives the grinding wheel assembly 120 to move in the second direction, so that the grinding wheel 121 approaches the roller 200 to the initial grinding position. The roller driving mechanism 140 then drives the roller 200 to rotate around the axis of the first direction, and the grinding wheel moving mechanism 130 drives the grinding wheel assembly 120 to move in the second direction to control the grinding depth. At the same time, the grinding wheel 121 rotates at high speed to grind the roller 200. Among them, the grinding wheel adopts a cubic boron nitride grinding wheel. The high hardness of the cubic boron nitride grinding wheel can enhance the wear resistance of the grinding wheel 121 and avoid frequent replacement of the grinding wheel. In this way, by reducing the number of grinding wheel replacements, the grinding time of the grinding wheel 121 can be effectively improved, thereby improving the overall grinding efficiency of the roller.

[0056] It should also be noted that the cubic boron nitride grinding wheel also has high thermal conductivity and high temperature stability. The high thermal conductivity allows the cubic boron nitride grinding wheel to adopt higher grinding parameters, and the grinding heat can be quickly discharged, avoiding damage to the grinding surface of the grinding wheel due to grinding heat; the high temperature stability can maintain the sharpness of the cubic boron nitride grinding wheel, ensure the waste removal rate of the cubic boron nitride grinding wheel per unit time, and further improve the grinding efficiency of the roll.

[0057] In some embodiments of the present application, the grinding machine body 110 may include a first frame 111 and a second frame 112 arranged side by side along the second direction, the first frame 111 is used to carry the grinding wheel assembly 120 and the grinding wheel moving mechanism 130; the second frame 112 is used to carry the rolling roller 200 and the rolling roller driving mechanism 140.

[0058] In some embodiments of the present application, the grinding wheel moving mechanism 130 may include a grinding frame moving assembly 131 and a large carriage moving assembly 132. The grinding frame moving assembly 131 is connected to the grinding wheel assembly 120 and is used to drive the grinding wheel assembly 120 to move along the second direction to control the distance between the grinding wheel 121 and the roller 200 and adjust the grinding depth. The large carriage moving assembly 132 is connected to the grinding frame moving assembly 131 and is used to drive the grinding frame moving assembly 131 and the grinding wheel assembly 120 to move as a whole along the first direction to achieve grinding coverage of the grinding wheel 121 along the length direction of the roller 200. When the large carriage moving assembly 132 moves, it drives the grinding frame moving assembly 131 and the grinding wheel assembly 120 to move together along the first direction; when the grinding frame moving assembly 131 moves, it only drives the grinding wheel assembly 120 to move along the second direction and does not drive the large carriage moving assembly 132 to move.

[0059] In some embodiments of the present application, the roll grinding apparatus may further include a measuring frame 150, which is mounted on the first frame 111. The measuring frame 150 is used to measure the roll surface profile parameters of the roll 200, such as diameter, crown, and surface roughness, before, during, and after grinding. Specifically, the roll surface profile parameters of the roll 200 may be obtained using a laser sensor, a contact probe, or the like.

[0060] In some embodiments of the present application, the roller grinding device may further include a tailstock center moving mechanism 160, which is installed on the second frame 112. The tailstock center moving mechanism 160 is connected to the roller 200 and is used to adjust the support center position of the roller 200 to ensure that the axis of the roller 200 is parallel to the rotation axis of the grinding wheel 121, reduce the grinding error caused by the installation deviation of the roller 200, and improve the grinding effect of the roller 200.

[0061] In some embodiments of the present application, the roller grinding device may further include a curve grinding mechanism, which is installed on the first frame 111. The curve grinding structure is connected to the grinding wheel assembly 120, and can drive the grinding wheel 121 to swing or eccentrically move around an axis parallel to the second direction, cooperating with the movement of the large drag plate moving assembly 132 in the first direction to grind a preset curve profile on the surface of the roller 200 to meet the requirements for the shape of the roller 200.

[0062] In some embodiments of the present application, the Vickers hardness of the cubic boron nitride grinding wheel is L, and the range of L is 3200HV≤L≤4000HV. The selection of this hardness range gives the cubic boron nitride grinding wheel the following advantages over grinding wheels made of materials such as corundum, polyamide, and green silicon carbide: on the one hand, this hardness range allows the cubic boron nitride grinding wheel to run at a higher linear speed, up to 80m / s, which greatly improves the material removal efficiency per unit time; on the other hand, the excellent wear resistance of this hardness range significantly reduces the wear rate of the grinding wheel, directly extending the replacement cycle of the grinding wheel. In this way, by reducing the frequency of grinding wheel replacement, the cost of grinding wheel consumables and the labor cost of replacement are reduced; by reducing the downtime caused by changing the grinding wheel, the effective grinding time of the grinder is extended, and the grinding wheel wear efficiency is improved; by reducing the amount of scrapped grinding wheels, the discharge of industrial waste is reduced.

[0063] Taking specific application data as an example: after adopting this cubic boron nitride grinding wheel, industrial waste emissions were reduced by 90%; the grinding wheel replacement cycle was extended from once every three days (each replacement took 40 minutes) to once every two months (also took 40 minutes), and the effective grinding time of a single grinder was increased by 380 minutes per month; on this basis, a single grinder can complete the processing of 4 more rollers per month, and the overall grinding efficiency is significantly improved.

[0064] Based on the roll grinding device provided in the above embodiment, the present application also provides a specific implementation of the roll grinding method. Figure 2 , the roller grinding method provided in the embodiments of the present application is described in detail through specific examples.

[0065] Figure 2 A schematic flow chart of a roll grinding method provided by some embodiments of the present application is shown;

[0066] like Figure 2 As shown, the roll grinding method is applied to the roll grinding device shown in any of the above embodiments, and specifically includes step 210 and step 220.

[0067] Step 210 , obtaining a grinding wheel linear velocity corresponding to each grinding stage of a cubic boron nitride grinding wheel in a plurality of grinding stages, wherein the plurality of grinding stages include a rough grinding stage, a semi-finishing grinding stage, and a finishing grinding stage.

[0068] Step 220 : determining grinding parameters of the roll grinding device at each grinding stage according to the grinding wheel linear speed of the cubic boron nitride grinding wheel at each grinding stage. The grinding parameters include parameters for driving the roll grinding device to perform roll grinding.

[0069] Therefore, matching the grinding wheel linear speed to the grinding target at different grinding stages can effectively avoid the problems of low rough grinding efficiency or insufficient fine grinding accuracy that may occur at a single grinding wheel linear speed. Combined with the high hardness of the cubic boron nitride grinding wheel, the roller grinding device can still maintain relatively stable grinding performance at higher grinding wheel linear speeds. Compared with corundum grinding wheels, the grinding wheel linear speed at each stage can be improved. Furthermore, by coordinating the grinding parameters used to drive the roller grinding device to perform roller grinding with the grinding wheel linear speed, the grinding time of a single roller can be shortened while effectively avoiding the low grinding efficiency that may be caused by the mismatch between the grinding parameters of the roller grinding device and the grinding wheel linear speed. This strategy of setting the grinding wheel linear speed in stages according to the grinding stage and achieving dynamic matching between the grinding parameters and the grinding wheel linear speed can fully utilize the performance advantages of the cubic boron nitride grinding wheel, not only improving the roller grinding efficiency, but also reducing the frequency of grinding wheel replacement by reducing grinding wheel wear, thereby reducing industrial waste emissions.

[0070] The above steps are described in detail below.

[0071] First, with respect to step 210, the meanings of the rough grinding stage, semi-finishing grinding stage, finishing grinding stage and grinding wheel linear speed involved in the embodiment of the present application are specifically explained.

[0072] The rough grinding stage refers to the initial stage of grinding the roll to be ground. The main purpose is to quickly remove excess material from the surface of the roll to be ground so as to approach the target roll surface profile of the roll to be ground. The rough grinding stage has low requirements on the surface accuracy of the roll surface and needs to ensure a high material removal efficiency.

[0073] The semi-finishing grinding stage refers to the transition stage between the rough grinding stage and the fine grinding stage, which is used to correct the surface error generated in the rough grinding stage and further narrow the gap between the actual roller surface profile and the target roller surface profile.

[0074] The fine grinding stage refers to the final stage of the grinding process to achieve the target roll surface profile of the roll. The material removal amount in the fine grinding stage is small, but the control accuracy of the grinding parameters is required to be high.

[0075] The linear speed of the grinding wheel refers to the arc length that a certain point on the outer surface of the grinding wheel passes in unit time. It is one of the parameters used to measure the cutting ability of the grinding wheel. It directly affects the roller surface material removal rate, roller surface quality and grinding wheel wear rate.

[0076] Next, in step 220, the grinding parameters refer to the specific parameters that drive the roller grinding device to complete the grinding operation. The grinding parameters include at least one of the following: roller rotation speed, grinding wheel cycle feed depth, grinding wheel compensation feed rate, grinding wheel movement speed, and grinding wheel feed passes. The roller rotation speed refers to the rotational speed at which the roller drive mechanism drives the roller to rotate about an axis parallel to the first direction. The grinding wheel cycle feed depth refers to the depth of penetration of the cubic boron nitride grinding wheel in the second direction driven by the grinding wheel movement mechanism during one grinding cycle, i.e., during one round trip in the second direction. The grinding wheel compensation feed rate refers to the rate at which the grinding wheel movement mechanism drives the grinding wheel assembly to make slight adjustments to the penetration depth in the second direction to compensate for grinding wheel wear. The grinding wheel movement speed refers to the speed at which the grinding wheel movement mechanism drives the grinding wheel assembly in the first direction. The grinding wheel feed passes refers to the number of round trips the grinding wheel assembly makes on the roller in the first direction. For example, moving from one end of the roller to the other is considered one grinding wheel feed pass, and returning is considered two grinding wheel feed passes.

[0077] Based on this, in order to improve the grinding efficiency of the roll grinding device, in some embodiments of the present application, such as Figure 3 As shown, the above step 220 may specifically include steps 2201 to 2203.

[0078] Step 2201: According to the grinding wheel linear speed corresponding to the cubic boron nitride grinding wheel in each grinding stage, adjust the roller rotation speed and grinding wheel movement speed corresponding to each grinding stage of the roller grinding device so as to be positively correlated with the grinding wheel linear speed.

[0079] Among them, positive correlation refers to the relationship in which the parameters change in the same direction, that is, when the linear speed of the grinding wheel increases, the rotation speed of the roller and the moving speed of the grinding wheel increase synchronously. Conversely, when the linear speed of the grinding wheel decreases, the rotation speed of the roller and the moving speed of the grinding wheel decrease synchronously, so as to ensure that the speed of each moving part of the roller grinding device matches during the grinding process, and avoid the decrease in grinding efficiency due to speed imbalance.

[0080] For example, the grinding wheel linear speed and the roller rotation speed in each grinding stage can be dynamically adjusted through the speed proportional relationship.

[0081] In some embodiments of the present application, the grinding wheel linear speed corresponding to the rough grinding stage is V s1 , the roller rotation speed corresponding to the rough grinding stage is V z1 , the grinding wheel moving speed corresponding to the rough grinding stage is V y1 , where V s1 The range is 60 m / s ≤ V s1 ≤65 m / s, V z1 The range is 40 rpm≤V z1 ≤45 rpm, V y1 The range is 3000 m / s

[0082] ≤V y1 ≤3600 m / s. The grinding wheel linear speed corresponding to the semi-finishing grinding stage is V s2 , the roller rotation speed corresponding to the semi-finishing stage is V z2 , the grinding wheel moving speed corresponding to the semi-finishing grinding stage is V y2 , where V s2 The range is 50 m / s

[0083] ≤V s2 ≤60 m / s, V z2 The range is 42 rpm≤V z2 ≤47 rpm, V y2 The range is 45 m / s ≤ V y2 ≤55 m / s. The grinding wheel linear speed corresponding to the fine grinding stage is V s3 , the roller rotation speed corresponding to the fine grinding stage is V z3 , the grinding wheel moving speed corresponding to the fine grinding stage is V y3 ; Among them, V s3 The range is 40 m / s ≤ V s3 ≤50 m / s, V z3 The range is 45 rpm≤V z3 ≤55 rpm, V y3 The range is 1100 m / s ≤ V y3 ≤1500 m / s.

[0084] Step 2202: According to the grinding wheel linear speed of the cubic boron nitride grinding wheel at each grinding stage, the grinding wheel compensation feed rate of the roller grinding device at each grinding stage is adjusted to zero.

[0085] In particular, when using a cubic boron nitride grinding wheel in a roll grinding system, CBN exhibits high chemical stability and excellent wear resistance due to its high Vickers hardness of 3200-4000 HV. Compared to conventional corundum grinding wheels, the abrasive grains of CBN grinding wheels are less susceptible to breakage and blunting during grinding of high-hardness materials such as finishing work rolls. Furthermore, the CBN grinding wheel has a heat resistance exceeding 1300°C, effectively suppressing abrasive grain shedding caused by grinding heat and maintaining wheel diameter stability during the grinding process. Due to these characteristics, the actual wear of the CBN grinding wheel is extremely minimal during the roughing, semi-finishing, and finishing stages, eliminating the need to compensate for wear-induced dimensional changes in the grinding wheel using a compensation feed depth. Therefore, setting the grinding wheel compensation feed rate to zero simplifies the grinding control process and avoids the additional errors that may be introduced by compensation feed.

[0086] Step 2203: According to the grinding wheel linear speed of the cubic boron nitride grinding wheel at each grinding stage, the grinding wheel cycle feed depth corresponding to each grinding stage is adjusted to be negatively correlated with the grinding wheel linear speed, the roller rotation speed, and the grinding wheel movement speed.

[0087] Among them, negative correlation refers to the relationship between parameters changing in the opposite direction, that is, when the grinding wheel linear speed, roller rotation speed or grinding wheel moving speed increases, the grinding wheel periodic feed depth decreases. Conversely, when the grinding wheel linear speed, roller rotation speed or grinding wheel moving speed decreases, the grinding wheel periodic feed depth increases, so as to balance the grinding efficiency and the surface quality of the cubic boron nitride grinding wheel, avoid the abnormal wear of the grinding wheel abrasive caused by excessive feed at high speed, and effectively extend the service life of the cubic boron nitride grinding wheel.

[0088] For example, the grinding wheel cycle feed depth corresponding to the rough grinding stage is H1, and the grinding wheel feed pass corresponding to the rough grinding stage is N1; wherein the range of H1 is 0.012 mm ≤ H3 ≤ 0.015 mm, and the range of N1 is 14 ≤ N2 ≤ 18. The grinding wheel cycle feed depth corresponding to the semi-finishing grinding stage is H2, and the grinding wheel feed pass corresponding to the semi-finishing grinding stage is N2; wherein the range of H2 is 0.003 mm ≤ H2 ≤ 0.006 mm, and the range of N2 is 4 ≤ N2 ≤ 6. The grinding wheel cycle feed depth corresponding to the fine grinding stage is H3, and the grinding wheel feed pass corresponding to the fine grinding stage is N3, wherein H3 = 0 mm, and the range of N3 is 2 ≤ N3 ≤ 4.

[0089] Therefore, through the coordinated adjustment of the grinding wheel linear speed and grinding parameters, the high hardness and low wear advantages of the cubic boron nitride grinding wheel can be fully utilized. While ensuring the grinding accuracy of the roll, the grinding efficiency of the roll can be improved, while reducing equipment loss and process complexity, and achieving efficient and stable roll grinding.

[0090] In some embodiments of the present application, Figure 4 As shown, the roll grinding method further includes steps 310 to 330 .

[0091] Step 310 , obtaining the current roller surface profile parameters and target roller surface profile parameters of the roller to be ground. The target roller surface profile parameters are roller surface profile parameters preset by the user that the roller to be ground needs to reach after grinding is completed.

[0092] The current roll surface profile parameters refer to the actual geometry and surface characteristics of the roll to be ground before entering the grinding process. They reflect the current wear state of the roll to be ground and may include, for example, parameters such as diameter, cylindricity, crown curve, surface roughness, and roundness error. The target roll surface profile parameters refer to the ideal parameter standards to be achieved after roll grinding, pre-set by the user based on the use scenario of the roll to be ground, such as the front or back section of the finishing mill, and the rolling process requirements.

[0093] For example, the current roll surface profile parameters can be obtained by using a measuring frame on the second stand of the roll grinding device to perform multi-point contact measurement along the roll axis using a high-precision displacement sensor to collect geometric parameters such as diameter and cylindricity. A roughness meter can be used to directly contact the roll surface to obtain surface roughness values. Alternatively, a laser scanning system can be used to perform three-dimensional modeling of the roll surface to obtain the current roll surface profile parameters. Alternatively, a camera can be used to capture an image of the roll surface and analyze it using an image processing algorithm to obtain the current roll surface profile parameters. The target roll surface profile parameters can be manually entered by the operator through the human-machine interface of the roll grinding device, or by retrieving standard roll surface profile parameters corresponding to the roll type, such as high-chromium iron rolls or high-nickel-chromium infinitely chilled rolls, from a database.

[0094] Step 320 : determining the current grinding stage of the roll to be ground according to the current roll surface profile parameters and the target roll surface profile parameters. The current grinding stage is one of the multiple grinding stages.

[0095] For example, the control system of the roll grinding device can compare the current roll surface profile parameters with the target roll surface profile parameters item by item, and calculate the deviation value of each parameter. For example, the diameter deviation is calculated based on the current diameter and the target diameter, and the convexity deviation is calculated based on the current convexity curve and the target convexity curve. Then, based on the preset deviation threshold and the grinding stage determination rule, the current grinding stage is determined. For example, when the diameter deviation is greater than 0.1mm, the current grinding stage of the roll to be ground is determined to be the rough grinding stage to remove a large amount of waste material from the surface of the roll to be ground; when the diameter deviation is between 0.02-0.1mm, the current grinding stage of the roll to be ground is determined to be the semi-finishing grinding stage to correct the shape error of the roll to be ground; when the diameter deviation is less than 0.02mm, the current grinding stage of the roll to be ground is determined to be the fine grinding stage, and high-precision processing of the roll to be ground is performed.

[0096] Step 330 : Controlling the roll grinding device to grind the roll to be ground according to the grinding parameters corresponding to the current grinding stage.

[0097] Therefore, by determining the current grinding stage of the roll to be ground, the grinding parameters of the current grinding stage can be called in a targeted manner, so that the grinding parameters match the requirements of the current grinding stage, and the roll to be ground can be ground in a targeted manner, thereby effectively shortening the grinding time of the roll and improving the grinding efficiency of the roll.

[0098] In some embodiments of the present application, the grinding parameters corresponding to the current grinding stage include a first type of grinding parameters and a second type of grinding parameters, the first type of grinding parameters are grinding parameters corresponding to the first roller type, the second type of grinding parameters are grinding parameters corresponding to the second roller type, the first roller type is used to characterize the attribute of the roller to be ground as a high-chromium iron roller, and the second roller type is used to characterize the attribute of the roller to be ground as a high-nickel-chromium infinitely chilled roller. Among them, the first roller type refers to a roller with the attribute of high-chromium iron, which is characterized by high hardness and strong wear resistance. It is often used in the front section of the finishing mill of a steel rolling production line and has extremely high requirements for surface wear resistance. The second roller type refers to a roller with the attribute of high-nickel-chromium infinitely chilled, which has both high hardness and good toughness. It is suitable for the back section of the finishing mill and needs to ensure the smoothness of the roller surface while bearing a large rolling force. The first type of grinding parameters is a grinding parameter combination specifically adapted for the first roller type, i.e., a high-chromium iron roller. The second type of grinding parameters is a combination of grinding parameters specifically adapted to the second type of roll, namely, high nickel-chromium infinitely chilled rolls.

[0099] Based on this, in order to improve the grinding effect of the roll to be ground, the above-mentioned control of the roll grinding device to grind the roll to be ground according to the grinding parameters corresponding to the current grinding stage includes: according to the roll type of the roll to be ground, selecting the target grinding parameters corresponding to the roll type from the grinding parameters corresponding to the current grinding stage, the roll type includes the first roll type or the second roll type, and the target grinding parameters include the first type of grinding parameters or the second type of grinding parameters; according to the target grinding parameters, controlling the roll grinding device to grind the roll to be ground.

[0100] The target grinding parameters are the optimal parameter group selected from the grinding parameter set of the current grinding stage according to the actual type of the roll to be ground, and serve as the execution parameters for driving the roll grinding device to grind the roll.

[0101] Therefore, by setting different grinding parameters for different types of rolls, the roll type and grinding parameters can be adapted to each other, thereby reducing the wear of the cubic boron nitride grinding wheel caused by the roll's own properties, effectively improving the grinding effect of the roll grinding device, and extending the service life of the cubic boron nitride grinding wheel.

[0102] In some embodiments of the present application, the above-mentioned determination of the current grinding stage of the roller to be ground based on the current roller surface profile parameters and the target roller surface profile parameters includes: determining the target grinding amount of the roller to be ground based on the current roller surface profile parameters and the target roller surface profile parameters; and determining the reference grinding stage associated with the target grinding amount as the current grinding stage based on the correlation between the reference grinding amount and the reference grinding stage.

[0103] The target grinding amount refers to the total amount of material required to remove the roll to be ground from its current actual state, as represented by the current roll surface profile parameters, to its target state, as represented by the target roll surface profile parameters. The reference grinding amount includes pre-defined grinding amount threshold intervals, which serve as quantitative criteria for different grinding stages. For example, the rough grinding stage corresponds to a larger reference grinding amount interval, while the fine grinding stage corresponds to a smaller reference grinding amount interval.

[0104] Therefore, the target grinding amount provides a quantitative target for the grinding task to be performed by the roll grinding device. The current grinding stage is determined by the target grinding amount to ensure that the grinding path of the roll to be ground from the current initial state to the target state is optimal. In this way, the grinding stages can be accurately divided, and the optimal grinding parameters can be dynamically matched to different grinding stages, which improves the material removal efficiency while reducing energy consumption and effectively optimizes the efficiency of the grinding process.

[0105] The actual production data of the roll grinding device in Table 1 below can be used to intuitively compare the differences in grinding parameters between cubic boron nitride (CBN) grinding wheels and conventional grinding wheels such as brown corundum (PA) grinding wheels and green silicon carbide (GC) grinding wheels (for different roll types (front-end rolls F1-4, rear-end rolls F5-7) and each grinding stage (rough grinding stage, semi-finishing stage, and finishing stage), as well as the impact of the two types of grinding wheels on grinding efficiency.

[0106]

[0107]

[0108]

[0109] Table 1

[0110] Based on the production data in Table 1, it can be seen that when using the grinding parameters in Table 1 in conjunction with the cubic boron nitride grinding wheel, the grinding time for the front rollers (F1-4) and the back rollers (F5-7) was reduced from 120 minutes to 85 minutes, a 35% reduction, while ensuring a total grinding volume (0.2-0.3 mm in the diameter direction). It can be seen that the grinding parameters in Table 1 fully utilize the high hardness and low wear characteristics of the CBN grinding wheel, not only avoiding the disadvantage of conventional grinding wheels (PA and GC) that require frequent compensatory feeding due to rapid wear, but also solving the problem of low grinding efficiency of conventional grinding wheels.

[0111] In some embodiments of the present application, the above-mentioned step 330 may specifically include: controlling the cubic boron nitride grinding wheel to rotate around an axis parallel to the first direction relative to the grinding machine body according to the grinding wheel linear speed corresponding to the current grinding stage; controlling the roller driving mechanism to drive the roller to be ground to rotate around an axis parallel to the first direction relative to the grinding machine body according to the roller rotation speed corresponding to the current grinding stage; controlling the grinding wheel moving mechanism to drive the grinding wheel assembly according to the grinding wheel movement speed, grinding wheel periodic feed depth and grinding wheel feed pass corresponding to the current grinding stage, and periodically driving the grinding wheel assembly to move along the first direction and / or the second direction to grind the roller to be ground.

[0112] For example, the roller to be ground is first fixed on the second frame of the grinding machine body by the roller driving mechanism, and the tailstock center moving mechanism adjusts the axis of the roller to be ground to be parallel to the first direction. Then, the control system of the roller grinding device determines the parameter combination corresponding to the high chromium iron roller and the rough grinding stage according to the type of the roller to be ground, such as a high chromium iron roller, and the predetermined current grinding stage, such as the rough grinding stage: the grinding wheel linear speed V is set to s1Set the roller speed V to 60m / s-65m / s. z1 The control system of the roller grinding device controls the grinding wheel linear speed within the range of 60-65 m / s by sending a grinding wheel speed command to the grinding wheel assembly, controls the roller rotation speed within the range of 40 rpm by sending a speed command to the roller drive mechanism, and moves the grinding wheel assembly at a constant speed of 3000-3300 m / s by sending a grinding wheel movement command to the large carriage moving assembly in the grinding wheel moving mechanism. Subsequently, after the grinding wheel completes a second direction stroke, the grinding wheel moving mechanism controls the grinding wheel to cut into the second direction to a depth of 0.012 mm. The above-mentioned movement and cutting action in the second direction are repeated until 16 feed passes are completed. Then, when 16 feed passes are completed and the current grinding amount reaches the target grinding amount of the rough grinding stage, the control system determines that the rough grinding stage is over and enters the semi-finishing grinding stage or re-acquires the current roller surface profile parameters of the roller and determines the current grinding stage of the roller based on the new current roller surface profile parameters.

[0113] Therefore, by collaboratively controlling the roll grinding device based on the optimized grinding parameters of each grinding stage, the roll surface excess can be effectively removed and the roll grinding efficiency can be improved.

[0114] In addition, in conjunction with the roll grinding method in the above-mentioned embodiment, the embodiment of the present application may provide a computer-readable storage medium for implementation. The computer-readable storage medium stores computer program instructions; when the computer program instructions are executed by a processor, any of the roll grinding methods in the above-mentioned embodiments is implemented. Examples of computer-readable storage media include non-transitory computer-readable storage media, such as portable disks, hard disks, random access memories (RAMs), read-only memories (ROMs), erasable programmable read-only memories (EPROMs or flash memories), portable compact disk read-only memories (CD≤L≤ROMs), optical storage devices, magnetic storage devices, and the like.

[0115] In addition, in conjunction with the roll grinding method in the above-described embodiments, embodiments of the present application may be implemented by providing a computer program product. This program product is stored in a storage medium and may specifically include a computer program or instructions. When executed by a processor, the computer program or instructions implement any of the roll grinding methods in the above-described embodiments. This program product is executed by at least one processor to implement the various processes of the above-described data processing method embodiments, achieving the same technical effects. To avoid repetition, it will not be described here.

[0116] It should be understood that the present application is not limited to the specific configurations and processes described above and illustrated in the figures. For the sake of brevity, a detailed description of known methods is omitted here. In the above embodiments, several specific steps are described and illustrated as examples. However, the method process of the present application is not limited to the specific steps described and illustrated. Those skilled in the art can make various changes, modifications, and additions, or change the order of the steps after understanding the spirit of the present application.

[0117] The functional blocks shown in the above block diagram can be implemented as hardware, software, firmware or a combination thereof. When implemented in hardware, it can be, for example, an electronic circuit, an application specific integrated circuit (ASIC), appropriate firmware, a plug-in unit, a function card or the like. When implemented in software, the elements of the present application are programs or code segments that are used to perform the required tasks. The program or code segment can be stored in a machine-readable medium, or transmitted on a transmission medium or a communication link by a data signal carried in a carrier wave. "Machine-readable medium" can include any medium capable of storing or transmitting information. Examples of machine-readable media include electronic circuits, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM), floppy disks, CD≤L≤ROM, optical disks, hard disks, optical fiber media, radio frequency (RF) links, etc. The code segment can be downloaded via a computer network such as the Internet, an intranet, etc.

[0118] It should also be noted that the exemplary embodiments mentioned in this application describe some methods or systems based on a series of steps or devices. However, this application is not limited to the order of the above steps. In other words, the steps can be performed in the order mentioned in the embodiments, or in a different order, or several steps can be performed simultaneously.

[0119] Aspects of the present disclosure have been described above with reference to the flowcharts and / or block diagrams of the methods, devices (systems) and computer program products according to the embodiments of the present disclosure. It should be understood that each box in the flowchart and / or block diagram and the combination of each box in the flowchart and / or block diagram can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer or other programmable data processing device to produce a machine so that these instructions executed by the processor of the computer or other programmable data processing device enable the implementation of the function / action specified in one or more boxes of the flowchart and / or block diagram. Such a processor can be, but is not limited to, a general-purpose processor, a special-purpose processor, a special application processor or a field programmable logic circuit. It is also understood that each box in the block diagram and / or flowchart and the combination of the boxes in the block diagram and / or flowchart can also be implemented by dedicated hardware that performs the specified function or action, or can be implemented by a combination of dedicated hardware and computer instructions.

[0120] The above is only a specific implementation method of the present application. Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the systems, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. It should be understood that the scope of protection of the present application is not limited to this. Any technician familiar with this technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in this application, and these modifications or replacements should be included in the scope of protection of this application.

Claims

1. A roll grinding device, characterized in that: include: Grinding machine body; a grinding wheel assembly, disposed on the grinding machine body, the grinding wheel assembly comprising a grinding wheel rotatable relative to the grinding machine body about an axis parallel to the first direction; a roller driving mechanism, provided on the grinding machine body, for driving the roller to rotate relative to the grinding machine body around an axis parallel to the first direction; a grinding wheel moving mechanism connected to the grinding wheel assembly, the grinding wheel moving mechanism and the roller driving mechanism being arranged side by side in the second direction, and the grinding wheel moving mechanism being used to drive the grinding wheel assembly to move along the first direction and / or the second direction; Wherein, the grinding wheel comprises a cubic boron nitride grinding wheel.

2. The device according to claim 1, characterized in that The Vickers hardness of the cubic boron nitride grinding wheel is L, and the range of L is 3200HV≤L≤4000HV.

3. A roll grinding method, characterized in that: Applied to a roll grinding device comprising a cubic boron nitride grinding wheel as claimed in any one of claims 1 or 2, the method comprising: Obtaining a grinding wheel linear velocity corresponding to each grinding stage of the cubic boron nitride grinding wheel in a plurality of grinding stages, wherein the plurality of grinding stages include a rough grinding stage, a semi-finishing grinding stage, and a finishing grinding stage; According to the grinding wheel linear speed of the cubic boron nitride grinding wheel corresponding to each grinding stage, the grinding parameters of the roll grinding device corresponding to each grinding stage are determined, and the grinding parameters include parameters for driving the roll grinding device to perform roll grinding.

4. The method according to claim 3, characterized in that The grinding parameters include at least one of the following: roller rotation speed, grinding wheel periodic feed depth, grinding wheel compensation feed rate, grinding wheel movement speed, grinding wheel feed pass number; Determining the grinding parameters of the roll grinding device corresponding to each grinding stage according to the grinding wheel linear speed corresponding to the cubic boron nitride grinding wheel in each grinding stage includes: According to the grinding wheel linear speed corresponding to the cubic boron nitride grinding wheel in each grinding stage, adjusting the roller rotation speed and the grinding wheel movement speed corresponding to the roller grinding device in each grinding stage to be positively correlated with the grinding wheel linear speed; According to the grinding wheel linear speed of the cubic boron nitride grinding wheel corresponding to each grinding stage, the grinding wheel compensation feed rate of the roller grinding device corresponding to each grinding stage is adjusted to zero; According to the grinding wheel linear speed corresponding to the cubic boron nitride grinding wheel in each grinding stage, the grinding wheel cycle feed depth corresponding to the cubic boron nitride grinding wheel in each grinding stage is adjusted to be negatively correlated with the grinding wheel linear speed, the rolling roller rotation speed and the grinding wheel movement speed.

5. The method according to claim 3 or 4, characterized in that The method comprises: Obtaining current roll surface profile parameters and target roll surface profile parameters of the roll to be ground, wherein the target roll surface profile parameters are roll surface profile parameters that are preset by the user and that the roll to be ground needs to achieve after grinding is completed; determining a current grinding stage of the roll to be ground according to the current roll surface profile parameter and the target roll surface profile parameter, wherein the current grinding stage is one of the multiple grinding stages; According to the grinding parameters corresponding to the current grinding stage, the roller grinding device is controlled to grind the roller to be ground.

6. The method according to claim 5, characterized in that The grinding parameters corresponding to the current grinding stage include a first type of grinding parameters and a second type of grinding parameters, wherein the first type of grinding parameters are grinding parameters corresponding to a first roll type, and the second type of grinding parameters are grinding parameters corresponding to a second roll type, wherein the first roll type is used to characterize that the roll to be ground is a high-chromium iron roll, and the second roll type is used to characterize that the roll to be ground is a high-nickel-chromium infinitely chilled roll; The step of controlling the roll grinding device to grind the roll to be ground according to the grinding parameters corresponding to the current grinding stage includes: selecting, according to the roll type of the roll to be ground, target grinding parameters corresponding to the roll type from the grinding parameters corresponding to the current grinding stage, the roll type including the first roll type or the second roll type, and the target grinding parameters including the first type of grinding parameters or the second type of grinding parameters; According to the target grinding parameters, the roll grinding device is controlled to grind the roll to be ground.

7. The method according to claim 5, characterized in that Determining the current grinding stage of the roll to be ground according to the current roll surface profile parameters and the target roll surface profile parameters includes: determining a target grinding amount of the roll to be ground according to the current roll surface profile parameters and the target roll surface profile parameters; According to the association relationship between the reference grinding amount and the reference grinding stage, the reference grinding stage associated with the target grinding amount is determined as the current grinding stage.

8. The method according to claim 5, characterized in that The step of controlling the roll grinding device to grind the roll to be ground according to the grinding parameters corresponding to the current grinding stage includes: controlling the cubic boron nitride grinding wheel to rotate relative to the grinding machine body around an axis parallel to the first direction according to the grinding wheel linear speed corresponding to the current grinding stage; controlling the roller driving mechanism to drive the roller to be ground to rotate relative to the grinding machine body around an axis parallel to the first direction according to the roller rotation speed corresponding to the current grinding stage; According to the grinding wheel movement speed, grinding wheel periodic feed depth and grinding wheel feed pass corresponding to the current grinding stage, the grinding wheel movement mechanism is controlled to drive the grinding wheel assembly, and the grinding wheel assembly is periodically driven to move along the first direction and / or the second direction to grind the rolling mill roller to be ground.

9. The method according to claim 3 or 4, characterized in that: The grinding wheel linear speed corresponding to the rough grinding stage is V s1 The roller rotation speed corresponding to the rough grinding stage is V z1 The grinding wheel cycle feed depth corresponding to the rough grinding stage is H1, and the grinding wheel moving speed corresponding to the rough grinding stage is V y1 , the grinding wheel feed pass corresponding to the rough grinding stage is N1; Among them, V s1 The range is 60 m / s ≤ V s1 ≤65 m / s, V z1 The range is 40 rpm≤V z1 ≤45 rpm, the range of H1 is 0.012 mm ≤ H3 ≤ 0.015 mm, V y1 The range is 3000 m / s ≤ V y1 ≤3600 m / s, N1 range is 14≤N2≤18; The grinding wheel linear speed corresponding to the semi-finishing grinding stage is V s2 The roller rotation speed corresponding to the semi-finishing stage is V z2 The grinding wheel cycle feed depth corresponding to the semi-finishing stage is H2, and the grinding wheel moving speed corresponding to the semi-finishing stage is V y2 , the grinding wheel feed pass corresponding to the semi-finishing grinding stage is N2; wherein, V s2 The range is 50 m / s ≤ V s2 ≤60 m / s, V z2 The range is 42 rpm≤V z2 ≤47 rpm, H2 range is 0.003 mm ≤H2≤0.006mm, V y2 The range is 45 m / s ≤ V y2 ≤55 m / s, N2 range is 4≤N2≤6; The grinding wheel linear speed corresponding to the fine grinding stage is V s3 The roller rotation speed corresponding to the fine grinding stage is V z3 The grinding wheel cycle feed depth corresponding to the fine grinding stage is H3, and the grinding wheel moving speed corresponding to the fine grinding stage is V y3 , the grinding wheel feed pass corresponding to the fine grinding stage is N3; wherein, V s3 The range is 40 m / s ≤ V s3 ≤50 m / s, V z3 The range is 45 rpm≤V z3 ≤55 rpm, H3=0 mm, V y3 The range is 1100 m / s ≤ V y3 ≤1500 m / s, the range of N3 is 2≤N3≤4.

10. A computer-readable storage medium, characterized in that The computer-readable storage medium stores computer program instructions, and when the computer program instructions are executed by a processor, the roll grinding method according to any one of claims 3 to 9 is implemented.

11. A computer program product, characterized in that When the instructions in the computer program product are executed by a processor of an electronic device, the electronic device is enabled to perform the roll grinding method according to any one of claims 3 to 9.

Images