Coating roller peripheral side surface machining equipment

Abstract

The invention is suitable for the field of coating roller surface processing, and relates to coating roller peripheral side surface processing equipment which comprises a workbench, the workbench is fixedly connected with a supporting frame, the supporting frame is fixedly connected with an electric lifting rod, the telescopic end of the electric lifting rod is fixedly connected with a sliding plate, and the sliding plate is sleeved with a sliding cylinder; the sliding plate is in sliding and sealing connection with the side wall of the sliding cylinder, a closed hydraulic cavity is formed between the sliding plate and the sliding cylinder, a spring is connected between the sliding plate and the sliding cylinder, the hydraulic cavity is filled with lubricating oil, the hydraulic cavity is connected with a vibration reduction mechanism, and the lubricating oil can circularly flow between the vibration reduction mechanism and the hydraulic cavity. According to the grinding stability regulation and control system, multi-physical-field coupling is achieved, interaction of mechanical dynamics (grinding and vibration), thermodynamics (temperature) and fluid mechanics (lubrication) is integrated, a closed-loop suppression chain is formed, and the stability of the grinding wheel during working is improved.

Description

Technical Field

[0001] The present invention belongs to the field of machine tools, and particularly relates to a processing device for the circumferential surface of a covering roller. Background Art

[0002] In the packaging, printing, and metallurgy industries, the covering roller is a core transmission component, and the processing accuracy of its circumferential surface directly affects the product quality. The following problems generally exist in traditional covering roller surface grinding equipment:

[0003] I. Insufficient vibration control: The vibration generated by the contact between the grinding wheel and the roller surface during the grinding process easily leads to uneven roughness of the processed surface. The conventional spring damping structure is affected by multiple factors such as temperature, pressure, and vibration frequency, and has a lag in dynamic response, making it difficult to adapt to changes in working conditions in real time;

[0004] II. Low temperature control efficiency: The local high temperature caused by high-speed grinding will accelerate the wear of the grinding wheel and affect the material properties of the roller surface. Most existing cooling systems use fixed-flow-rate spraying, lacking the coordinated control of the grinding wheel temperature and the coolant flow rate, resulting in unstable cooling effects;

[0005] III. Weak system coupling: The lubricating oil circulation of the damping mechanism, the spring state, and the grinding parameters (rotation speed, pressure, temperature) affect each other, but the existing equipment lacks a closed-loop control mechanism for multi-parameter fusion, making it difficult to balance the damping efficiency and the grinding stability.

[0006] To break through the above limitations, it is urgent to develop a covering roller processing device that integrates intelligent perception and dynamic control, and realizes the coordinated optimization of the damping system, the cooling unit, and the grinding mechanism through multi-source data fusion modeling, so as to improve the processing accuracy and the equipment reliability. Summary of the Invention

[0007] An object of an embodiment of the present invention is to provide a processing device for the circumferential surface of a covering roller, aiming to solve the problem that the existing equipment lacks a closed-loop control mechanism for multi-parameter fusion, making it difficult to balance the damping efficiency and the grinding stability.

[0008] The present invention is implemented as follows. A processing device for the circumferential side surface of a covering roller includes a workbench. The workbench is fixedly connected with a support frame. The support frame is fixedly connected with an electric lifting rod. The telescopic end of the electric lifting rod is fixedly connected with a sliding plate. A sliding cylinder is sleeved outside the sliding plate. The sliding plate is slidably and sealingly connected with the side wall of the sliding cylinder. A closed hydraulic cavity is formed between the sliding plate and the sliding cylinder. A spring is connected between the sliding plate and the sliding cylinder. The hydraulic cavity is filled with lubricating oil. The hydraulic cavity is connected with a damping mechanism, and the lubricating oil can circulate between the damping mechanism and the hydraulic cavity. The bottom of the sliding cylinder is connected with a grinding mechanism for grinding the covering roller; a clamping mechanism for limiting and driving the rotation of the covering roller is arranged on the workbench, and cooling mechanisms are arranged on both sides of the clamping mechanism. The cooling mechanisms can perform cooling treatment on the grinding mechanism;

[0009] A grinding stability regulation system, which includes:

[0010] A data acquisition module, which can acquire the grinding state information of the grinding mechanism (including rotation speed, vibration frequency and pressure information), the temperature state information of the grinding mechanism and the state information of the spring (including compression degree, temperature, tensile strength and vibration frequency information);

[0011] A grinding part state evaluation module, which can construct a grinding part state evaluation model through the rotation speed, vibration frequency and pressure information of the grinding mechanism and output a grinding state evaluation coefficient;

[0012] A temperature state evaluation module, which can construct a temperature state evaluation model through the temperature of the grinding mechanism and the flow rate information of the cooling mechanism and output a temperature state evaluation coefficient;

[0013] An elastic part state evaluation module, which fits the grinding state evaluation coefficient and the temperature state evaluation coefficient to generate a state influence factor, and constructs an elastic part state evaluation model through the compression degree information, temperature information, vibration frequency information of the spring and the state influence factor and outputs an elastic part state evaluation coefficient;

[0014] A reflux speed regulation module, which can construct a reflux speed regulation model through the elastic part state evaluation coefficient and the basic reflux speed information of the lubricating liquid and output a target reflux speed, and regulate the damping mechanism through the reflux speed regulation module.

[0015] Further technical solution, the grinding mechanism includes a rotating frame, a grinding wheel and a first motor;

[0016] The rotating frame is fixedly inserted between the bottom surface of the sliding cylinder. The rotating frame is fixedly connected with a first motor. The output shaft of the first motor is fixedly connected with a grinding wheel. The grinding wheel is rotatably connected with the rotating frame;

[0017] A pressure sensor is provided between the bottom surface of the rotating frame and the sliding cylinder, and a vibration frequency sensor is provided in the grinding wheel. The first motor is electrically connected to the PLC controller and the data processor in sequence, and the data processor can control the rotation speed of the first motor.

[0018] Further technical solution, the damping mechanism includes a storage tank, a one-way liquid inlet valve and a one-way return valve;

[0019] The storage tank is fixedly connected to the outer wall of the sliding cylinder. Pipes are connected between both sides of the storage tank and the hydraulic cavity. A one-way liquid inlet valve that conducts unidirectionally towards the storage tank is provided on one of the pipes, and a one-way return valve that conducts unidirectionally towards the hydraulic cavity is provided on the other pipe. Lubricating oil is stored in the storage tank.

[0020] Further technical solution, the cooling mechanism includes a diversion pipe, a spray orifice plate and a hydraulic pump;

[0021] Fixed seats are provided on both sides of the clamping mechanism. Diversion pipes are fixedly connected to the fixed seats. Spray orifice plates are fixedly connected to the diversion pipes. The water outlet holes on the spray orifice plates all face the middle of the workbench. The two diversion pipes are connected by a pipe, and a hydraulic pump is connected to one of the diversion pipes;

[0022] A first temperature sensor and a second temperature sensor are respectively provided in the grinding wheel and the spray orifice plate. The hydraulic pump is electrically connected to the PLC controller and the data processor in sequence, and the data processor can regulate the flow rate of the hydraulic pump.

[0023] Further technical solution, the clamping mechanism includes a sliding seat, a limit seat and a second motor;

[0024] Two sliding seats are slidably connected to the workbench. The sliding seats are both rotatably connected to the limit seats. A bidirectional threaded rod is threadedly connected between the two limit seats. A third motor is fixedly connected to the bottom of the workbench. The output shaft of the third motor is fixedly connected to the bidirectional threaded rod. One of the limit seats is connected to a second motor that drives it to rotate, and the second motor is fixedly connected to the sliding seat.

[0025] Further technical solution, substitute the rotation speed information of the first motor, the pressure information of the pressure sensor and the vibration frequency information of the vibration sensor into the maximum-minimum normalization formula respectively, and generate a rotation speed index, a pressure index and a vibration frequency index respectively. The grinding part state evaluation model is:

[0026]

[0027] α, β, and γ are respectively the grinding rate weight coefficient, vibration frequency weight coefficient, and extrusion pressure gain weight coefficient (α + β + γ = 1). α, β, and γ are all calibrated based on actual production experience. Among them, β reflects the influence of vibration on wear, and γ is related to the material hardness; G r represents the rotational speed index, f v represents the vibration frequency index, F e represents the pressure index, W S represents the grinding part state evaluation coefficient.

[0028] Further technical solution, the temperature state evaluation model is:

[0029]

[0030] Among them, T w represents the real-time temperature of the grinding wheel, T C represents the real-time temperature of the cooling water, T rcf represents the reference temperature difference between the grinding wheel and the cooling water; δ is the temperature difference scaling factor, v c represents the cooling water flow rate (unit: m / s), η represents the flow rate inhibition coefficient (unit: s / m). The specific values of δ and η are both calibrated based on actual production experience, T S represents the temperature state evaluation coefficient.

[0031] Further technical solution, the state influence factor fitting formula is:

[0032]

[0033] Among them, k represents the coupling coefficient, indicating the interaction intensity between the grinding wheel and temperature; λ is the temperature attenuation coefficient, controlling the inhibitory effect of temperature on wear. The specific values of k and λ are both calibrated based on actual production experience, I f represents the state influence factor.

[0034] Further technical solution, a third temperature sensor in contact with the spring is arranged in the hydraulic cavity. A elastic force sensor is arranged between the spring and the slide plate. The elastic force sensor is electrically connected to the data processor. The compression degree of the spring can be calculated by combining the value of the elastic force sensor with the parameter information of the spring. The elastic part state evaluation model is:

[0035] S S = μ·C d + v·(T S - T0)+ ξ·f s + ω·I f ;

[0036] Among them, μ represents the compression sensitivity coefficient (dimensionless), v represents the temperature drift coefficient (unit: °C-1 ), ξ represents the vibration damping coefficient (unit: s), ω represents the influence factor weight (dimensionless); C d represents the compression degree of the spring (unit: %), T S represents the temperature of the spring (unit: °C), T0 represents the reference temperature of the spring, (unit: °C), f s represents the vibration frequency of the spring, where μ, v, ξ, ω, and T0 are all calibrated through actual production experience.

[0037] Further technical solution, the reflux velocity regulation model is:

[0038] v t = v b ·(1 + ρ·tan(S S ));

[0039] where ρ represents the reflux adjustment coefficient (dimensionless), used to control the adjustment range of the spring state on the flow velocity; S S represents the elastic component state evaluation coefficient, v b represents the lubricating fluid basic reflux velocity (unit: mm / s); tan(*) represents the hyperbolic tangent function, which can perform dimensionless processing on S S to ensure smooth change of the flow velocity.

[0040] Compared with the prior art, the beneficial effects of the present invention are:

[0041] 1. The electric lifting rod drives the grinding mechanism to move downward and contact the coating roller. At this time, under the push of the spring, the grinding mechanism and the coating roller are elastically extruded. The grinding mechanism is started to grind the coating roller by rotating in the opposite direction relative to the coating roller; during the grinding process, under the action of the grinding force, the spring reciprocates and stretches. At this time, the vibration damping mechanism can guide the lubricating oil in the hydraulic cavity, thereby buffering and damping the spring; the grinding stability regulation system can control the reflux velocity of the lubricating oil by controlling the vibration damping mechanism, thereby controlling the vibration frequency of the spring, and further regulating the stability during the grinding of the grinding mechanism.

[0042] 2. In the grinding part state evaluation model, the rotation speed index G r can improve the grinding efficiency, the vibration frequency index f v can capture the stability of the grinding wheel. In addition, the pressure index F e can monitor the load intensity of the grinding wheel. When the rotation speed index G r is too large, triggering an early warning can prevent excessive wear of the grinding wheel. The high-frequency vibration is amplified to facilitate the identification of resonance risks. Adjusting the extrusion pressure through γ·F e can balance the material removal rate and the service life of the grinding wheel. By ln(G rThe non - linear mapping of (+1) can ensure that the model sensitivity remains unchanged during low - speed grinding; the generated grinding part state evaluation coefficient W S can dynamically evaluate the working state of the grinding wheel and quantify the comprehensive influence of wear, vibration, and load on the grinding wheel.

[0043] 3. In the temperature state evaluation model, the temperature difference term (T w -T C ) can reflect the degree of heat accumulation, and the flow velocity term v c can measure the heat dissipation ability of the coolant. In the temperature state evaluation model, when the flow velocity of the cooling water is low, the cooling efficiency is sensitive to v c , and when the flow velocity of the cooling water is high, the cooling efficiency tends to saturate; the generated temperature state evaluation coefficient T S can evaluate the effectiveness of the cooling system and quantify the thermal state of the grinding wheel.

[0044] 4. The grinding stability control system realizes the coupling of multiple physical fields, integrates the interactions of mechanical dynamics (grinding, vibration), thermodynamics (temperature), and fluid mechanics (lubrication), forms a closed - loop suppression chain, improves the stability of the grinding wheel during operation, and at the same time realizes early warning of grinding wheel wear through the state coefficients (W S , T S and S S ). Each state coefficient (W S , T S and S S ) can be output as a virtual sensor, supporting process parameter optimization, remaining life prediction, and root cause analysis of faults. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 is a schematic structural diagram of the present invention;

[0046] Figure 2 is a schematic structural diagram of the grinding mechanism and the vibration damping mechanism in the present invention;

[0047] Figure 3 is a schematic internal structure diagram of the sliding cylinder in the present invention;

[0048] Figure 4 is a schematic structural diagram of the cooling mechanism in the present invention;

[0049] Figure 5 is a schematic bottom structure diagram of the workbench in the present invention;

[0050] Figure 6 is a schematic diagram of the principle of the grinding stability control system.

[0051] In the attached drawings: 1, workbench; 2, support frame; 3, electric lifting rod; 4, sliding cylinder; 5, sliding plate; 6, grinding mechanism; 61, rotating frame; 62, grinding wheel; 63, first motor; 7, vibration damping mechanism; 71, storage tank; 72, one-way liquid inlet valve; 73, one-way reflux valve; 74, pipeline; 8, cooling mechanism; 81, diversion pipe; 82, spray orifice plate; 83, hydraulic pump; 9, clamping mechanism; 91, sliding seat; 92, limiting seat; 93, second motor; 94, bidirectional threaded rod; 95, third motor; 10, hydraulic cavity; 11, spring. Detailed implementation manners

[0052] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the attached drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0053] The following describes in detail the specific implementation of the present invention with reference to specific embodiments.

[0054] As Figures 1 - 6 shown, a processing device for the circumferential surface of a coating roller provided by an embodiment of the present invention includes a workbench 1, the workbench 1 is fixedly connected with a support frame 2, the support frame 2 is fixedly connected with an electric lifting rod 3, the telescopic end of the electric lifting rod 3 is fixedly connected with a sliding plate 5, the sliding plate 5 is sleeved with a sliding cylinder 4 on the outside, the sliding plate 5 is slidably and sealingly connected with the side wall of the sliding cylinder 4, a closed hydraulic cavity 10 is formed between the sliding plate 5 and the sliding cylinder 4, a spring 11 is connected between the sliding plate 5 and the sliding cylinder 4, the hydraulic cavity 10 is filled with lubricating oil, the hydraulic cavity 10 is connected with a vibration damping mechanism 7, and the lubricating oil can circulate between the vibration damping mechanism 7 and the hydraulic cavity 10; the bottom of the sliding cylinder 4 is connected with a grinding mechanism 6 for grinding the coating roller; a clamping mechanism 9 for limiting and driving the rotation of the coating roller is arranged on the workbench 1, and cooling mechanisms 8 are arranged on both sides of the clamping mechanism 9, and the cooling mechanisms 8 can perform cooling treatment on the grinding mechanism 6;

[0055] A grinding stability regulation system, which includes:

[0056] A data acquisition module, which can acquire the grinding state information (including rotation speed, vibration frequency and pressure information) of the grinding mechanism 6, the temperature state information of the grinding mechanism 6, and the state information of the spring 11 (including compression degree, temperature, tensile strength and vibration frequency information);

[0057] A grinding part state evaluation module, which can construct a grinding part state evaluation model through the rotation speed, vibration frequency and pressure information of the grinding mechanism 6 and output a grinding state evaluation coefficient;

[0058] A temperature state evaluation module, which can construct a temperature state evaluation model based on the temperature of the grinding mechanism 6 and the flow rate information of the cooling mechanism 8 and output a temperature state evaluation coefficient;

[0059] An elastic part state evaluation module, which fits the grinding state evaluation coefficient and the temperature state evaluation coefficient to generate a state influence factor, constructs an elastic part state evaluation model based on the compression degree information, temperature information, vibration frequency information of the spring 11 and the state influence factor, and outputs an elastic part state evaluation coefficient;

[0060] A reflux speed regulation module, which can construct a reflux speed regulation model based on the elastic part state evaluation coefficient and the basic reflux speed information of the lubricating fluid and output a target reflux speed, and regulates the damping mechanism 7 through the reflux speed regulation module.

[0061] In this embodiment, the clamping mechanism 9 is used to limit the coating roller, and the electric lifting rod 3 is started to drive the grinding mechanism 6 to move down to contact the coating roller. At this time, under the push of the spring 11, the grinding mechanism 6 elastically extrudes the coating roller, and the grinding mechanism 6 is started to grind the coating roller by rotating in the opposite direction relative to the coating roller; during the grinding process, the spring 11 reciprocally expands and contracts under the action of the grinding force. At this time, the damping mechanism 7 can guide the lubricating oil in the hydraulic cavity 10, so as to buffer and damp the spring 11;

[0062] The grinding stability regulation system can control the reflux speed of the lubricating oil by controlling the damping mechanism 7, so as to control the vibration frequency of the spring 11, and further regulate the stability of the grinding mechanism 6 during grinding.

[0063] As Figure 2 shown, as a preferred embodiment of the present invention, the grinding mechanism 6 includes a rotating frame 61, a grinding wheel 62 and a first motor 63;

[0064] The rotating frame 61 is fixedly inserted between the bottom surface of the sliding cylinder 4, the rotating frame 61 is fixedly connected with a first motor 63, the output shaft of the first motor 63 is fixedly connected with a grinding wheel 62, and the grinding wheel 62 is rotatably connected with the rotating frame 61;

[0065] A pressure sensor is arranged between the rotating frame 61 and the bottom surface of the sliding cylinder 4, a vibration frequency sensor is arranged in the grinding wheel 62, and the first motor 63 is electrically connected to the PLC controller and the data processor in sequence, and the data processor can control the rotation speed of the first motor 63.

[0066] In this embodiment, the electric lifting rod 3 drives the entire grinding mechanism 6 to move downward. The grinding wheel 62 contacts and presses against the covering roller. When the extrusion force between the grinding wheel 62 and the covering roller reaches the set value, the first motor 63 is started at this time. The first motor 63 drives the grinding wheel 62 to grind the surface of the covering roller. During this process, under the elastic force of the spring 11, the grinding wheel 62 and the surface of the covering roller are elastically extruded. The pressure sensor can measure the extrusion force between the grinding wheel 62 and the covering roller, and the vibration frequency sensor can measure the vibration frequency of the grinding wheel 62 during operation. The data processor can record the rotation speed of the first motor 63.

[0067] As Figure 2 shown, as a preferred embodiment of the present invention, the damping mechanism 7 includes a storage tank 71, a one-way liquid inlet valve 72, and a one-way return valve 73;

[0068] The storage tank 71 is fixedly connected to the outer wall of the sliding cylinder 4. Both sides of the storage tank 71 are connected to the hydraulic cavity 10 through pipelines 74. A one-way liquid inlet valve 72 that conducts unidirectionally towards the storage tank 71 is provided on one of the pipelines 74, and a one-way return valve 73 that conducts unidirectionally towards the hydraulic cavity 10 is provided on the other pipeline 74. Lubricating oil is stored in the storage tank 71.

[0069] In this embodiment, initially, the one-way liquid inlet valve 72 and the one-way return valve 73 are in a conducting state. As the entire grinding mechanism 6 moves downward, under the pushing force of the extrusion force of the covering roller, the spring 11 is compressed in the hydraulic cavity 10. When the extrusion force between the grinding wheel 62 and the covering roller reaches the set value, the one-way liquid inlet valve 72 and the one-way return valve 73 are closed and a pressure threshold is set at this time. At this time, the hydraulic cavity 10 is filled with lubricating oil;

[0070] Under the action of the vibration force during grinding, the sliding plate 5 and the sliding cylinder 4 slide relative to each other reciprocally. At this time, the pressure in the hydraulic cavity 10 changes continuously. When the pressure in the hydraulic cavity 10 increases to the set pressure threshold, the one-way liquid inlet valve 72 is conducted at this time, and the lubricating oil in the hydraulic cavity 10 flows into the storage tank 71. At this time, the spring 11 is elastically compressed. Then, under the action of the rebounding force of the spring 11, the negative pressure in the hydraulic cavity 10 reaches the set pressure threshold. At this time, the one-way return valve 73 is conducted, and the lubricating oil in the storage tank 71 flows back into the hydraulic cavity 10;

[0071] When the lubricating oil flows through the hydraulic cavity 10, a viscous oil film is formed, and its internal friction consumes the vibration energy of the spring 11. Especially under high-frequency working conditions, the damping characteristics of the oil liquid suppress the resonance amplitude of the spring 11 and improve the dynamic stability; the return speed regulation module can construct a return speed regulation model and output the target return speed through the elastic member state evaluation coefficient and the basic return speed information of the lubricating liquid. The one-way liquid inlet valve 72 and the one-way return valve 73 are regulated through the return speed regulation module, so as to control the return speed of the lubricating oil flowing back into the hydraulic cavity 10 through the storage tank 71.

[0072] As Figure 5 shown, as a preferred embodiment of the present invention, the cooling mechanism 8 includes a diversion pipe 81, a spray orifice plate 82, and a hydraulic pump 83;

[0073] Fixed seats are provided on both sides of the clamping mechanism 9, and the diversion pipes 81 are fixedly connected to the fixed seats. The diversion pipes 81 are fixedly connected to the spray orifice plates 82, and the water outlet holes on the spray orifice plates 82 all face the middle of the workbench 1. The two diversion pipes 81 are connected through a pipeline 74, and one of the diversion pipes 81 is connected to a hydraulic pump 83;

[0074] A first temperature sensor and a second temperature sensor are respectively arranged in the grinding wheel 62 and the spray orifice plate 82. The hydraulic pump 83 is electrically connected to the PLC controller and the data processor in sequence, and the data processor can regulate the flow rate of the hydraulic pump 83.

[0075] In this embodiment, the hydraulic pump 83 is connected to an external water source through a water pipe, the hydraulic pump 83 is started to pump water, and the cooling water sprays out from the spray orifice plate 82 through the diversion pipe 81, thereby spraying and cooling the grinding wheel 62.

[0076] As Figure 4 and Figure 5 shown, as a preferred embodiment of the present invention, the clamping mechanism 9 includes a sliding seat 91, a limit seat 92, and a second motor 93;

[0077] Two sliding seats 91 are slidably connected to the workbench 1. The sliding seats 91 are respectively rotatably connected to limit seats 92. A bidirectional threaded rod 94 is threadedly connected between the two limit seats 92. A third motor 95 is fixedly connected to the bottom of the workbench 1, and the output shaft of the third motor 95 is fixedly connected to the bidirectional threaded rod 94. One of the limit seats 92 is connected to a second motor 93 that drives it to rotate, and the second motor 93 is fixedly connected to the sliding seat 91.

[0078] In this embodiment, the third motor 95 is started, the third motor 95 drives the bidirectional threaded rod 94 to rotate, the bidirectional threaded rod 94 drives the two sliding seats 91 to move relatively through threaded transmission, and the two sliding seats 91 respectively drive the limit seats 92 connected thereto to clamp and fix the covering roller. During grinding, the second motor 93 is started to drive the covering roller to rotate, and the first motor 63 is started to drive the grinding wheel 62 to rotate in the opposite direction to the covering roller, thereby grinding the covering roller.

[0079] As a preferred embodiment of the present invention, the rotational speed information of the first motor 63, the pressure information of the pressure sensor, and the vibration frequency information of the vibration sensor are respectively substituted into the maximum-minimum normalization formula, and a rotational speed index, a pressure index, and a vibration frequency index are respectively generated. The grinding part state evaluation model is as follows:

[0080]

[0081] Wherein, α, β, and γ are respectively the grinding rate weight coefficient, the vibration frequency weight coefficient, and the extrusion pressure gain weight coefficient (α + β + γ = 1). The values of α, β, and γ are calibrated through actual production experience. Among them, β reflects the influence of vibration on wear, and γ is related to the material hardness; G r represents the rotational speed index, f v represents the vibration frequency index, F e represents the pressure index, and W S represents the grinding part state evaluation coefficient.

[0082] In this embodiment, in the grinding part state evaluation model, the rotational speed index G r can reflect the grinding efficiency, the vibration frequency index f v can capture the stability of the grinding wheel 62. In addition, the pressure index F e can monitor the load intensity of the grinding wheel 62. When the rotational speed index G r is too large, triggering a warning can prevent excessive wear of the grinding wheel 62. The amplified high-frequency vibration can facilitate the identification of resonance risks. By guiding the extrusion pressure adjustment through γ·F , the balance between the material removal rate and the service life of the grinding wheel 62 can be achieved. Through the non-linear mapping of ln(G e +1), the sensitivity of the model can be ensured to remain unchanged during low-speed grinding; the generated grinding part state evaluation coefficient W r can dynamically evaluate the working state of the grinding wheel 62 and quantify the comprehensive influence of wear, vibration, and load on the grinding wheel 62. S can dynamically evaluate the working state of the grinding wheel 62 and quantify the comprehensive influence of wear, vibration, and load on the grinding wheel 62.

[0083] As a preferred embodiment of the present invention, the temperature state evaluation model is as follows:

[0084]

[0085] Wherein, T w represents the real-time temperature of the grinding wheel 62, T C represents the real-time temperature of the cooling water, and T rcf represents the reference temperature difference between the grinding wheel 62 and the cooling water; δ is the temperature difference scaling factor, v c represents the cooling water flow rate (unit: m / s), η represents the flow rate inhibition coefficient (unit: s / m), and the specific values of δ and η are calibrated through actual production experience. T SRepresents the temperature state evaluation coefficient.

[0086] In this embodiment, in the temperature state evaluation model, the temperature difference term (T w -T C ) can reflect the degree of heat accumulation, and the flow velocity term v c can measure the heat dissipation ability of the coolant. In the temperature state evaluation model, when the cooling water has a low flow velocity, the cooling efficiency is sensitive to v c , and when the cooling water has a high flow velocity, the cooling efficiency tends to saturate; the generated temperature state evaluation coefficient T S can evaluate the effectiveness of the cooling system and quantify the thermal state of the grinding wheel 62.

[0087] As a preferred embodiment of the present invention, the state influence factor fitting formula is:

[0088]

[0089] where k represents the coupling coefficient, indicating the interaction strength between the grinding wheel 62 and the temperature; λ is the temperature attenuation coefficient, controlling the inhibitory effect of temperature on wear. The specific values of k and λ are calibrated through actual production experience, and I f represents the state influence factor.

[0090] In this embodiment, in the state influence factor fitting formula, the coupling coefficient k can allow adjustment of the weight ratio of the influence of the grinding wheel 62 and the temperature on the spring 11. By coupling the mechanical state and the thermal state of the grinding wheel 62 through the state influence factor, the multiplication term reflects the interaction effect between wear and temperature; the exponential decay simulates the inhibition of wear by high temperature.

[0091] As a preferred embodiment of the present invention, a third temperature sensor in contact with the spring 11 is provided in the hydraulic chamber 10, a elastic force sensor is provided between the spring 11 and the slide plate 5, and the elastic force sensor is electrically connected to the data processor. The compression degree of the spring 11 can be calculated by combining the value of the elastic force sensor with the parameter information of the spring 11. The elastic member state evaluation model is:

[0092] S S =μ·C d +v·(T S -T0)+ξ·f s +ω·I f ;

[0093] where μ represents the compression sensitivity coefficient (dimensionless), v represents the temperature drift coefficient (unit: °C -1 ), ξ represents the vibration damping coefficient (unit: s), ω represents the influence factor weight (dimensionless); C d represents the compression degree of the spring 11 (unit: %), TS represents the temperature of the spring 11 (unit: °C), T0 represents the reference temperature of the spring 11, (unit: °C), f s represents the vibration frequency of the spring 11, where μ, v, ξ, ω, and T0 are all calibrated through actual production experience.

[0094] In this embodiment, in the elastic component state evaluation model, the health state of the spring 11 is comprehensively evaluated through the elastic component state evaluation model, μ·C d +ξ·f s term can quantify mechanical fatigue; v·(T S -T0) can correct the temperature drift of the spring, ω·I f maps the working conditions of the grinding wheel 62 to the load of the spring 11 (for example, the vibration of the grinding wheel 62 will cause the resonance of the spring 11).

[0095] As a preferred embodiment of the present invention, the reflux velocity regulation model is:

[0096] v t =v b ·(1 + ρ·tan(S S ));

[0097] where ρ represents the reflux adjustment coefficient (dimensionless), which is used to control the adjustment range of the spring 11 state on the flow rate; S S represents the elastic component state evaluation coefficient, v b represents the basic reflux velocity of the lubricating fluid (unit: mm / s); tan(*) represents the hyperbolic tangent function, which can perform dimensionless processing on S S to ensure smooth flow rate changes.

[0098] In this embodiment, the reflux velocity regulation model dynamically adjusts the lubricating oil flow rate to match the spring demand.

[0099] The grinding stability regulation system realizes the coupling of multiple physical fields, integrates the interactions of mechanical dynamics (grinding, vibration), thermodynamics (temperature), and fluid mechanics (lubrication), forms a closed-loop suppression chain, improves the stability of the grinding wheel 62 during operation, and at the same time realizes the early warning of the wear of the grinding wheel 62 through the state coefficients (W S , T S and S S ).

[0100] Each state coefficient (W S , T S and S S ) can be output as a virtual sensor, supporting process parameter optimization, remaining life prediction, and root cause analysis of faults.

[0101] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An equipment for processing the circumferential side surface of a coating roller, comprising a workbench, and the workbench is fixedly connected with a support frame, characterized in that, The support frame is fixedly connected with an electric lifting rod. The telescopic end of the electric lifting rod is fixedly connected with a sliding plate. A sliding cylinder is sleeved outside the sliding plate. The sliding plate is slidably and sealingly connected with the side wall of the sliding cylinder. A closed hydraulic cavity is formed between the sliding plate and the sliding cylinder. A spring is connected between the sliding plate and the sliding cylinder. The hydraulic cavity is filled with lubricating oil. The hydraulic cavity is connected with a vibration damping mechanism, and the lubricating oil can circulate between the vibration damping mechanism and the hydraulic cavity. The bottom of the sliding cylinder is connected with a grinding mechanism for grinding the coating roller; A cooling mechanism is arranged on the workbench, and the cooling mechanism can perform cooling treatment on the grinding mechanism; A grinding stability control system, which includes: A data acquisition module, which can acquire the grinding state information of the grinding mechanism, the temperature state information of the grinding mechanism, and the state information of the spring; A grinding part state evaluation module, which can construct a grinding part state evaluation model through the rotation speed, vibration frequency, and pressure information of the grinding mechanism and output a grinding state evaluation coefficient; A temperature state evaluation module, which can construct a temperature state evaluation model through the temperature of the grinding mechanism and the flow rate information of the cooling mechanism and output a temperature state evaluation coefficient; An elastic part state evaluation module, which fits the grinding state evaluation coefficient and the temperature state evaluation coefficient to generate a state influence factor, and constructs an elastic part state evaluation model through the compression degree information, temperature information, vibration frequency information, and state influence factor of the spring and outputs an elastic part state evaluation coefficient; A reflux speed control module, which can construct a reflux speed control model through the elastic part state evaluation coefficient and the basic reflux speed information of the lubricating liquid and output a target reflux speed, and the vibration damping mechanism is controlled by the reflux speed control module.

2. The circumferential surface processing device for the coating roller according to claim 1, characterized in that, The grinding mechanism includes a rotating frame, a grinding wheel, and a first motor; The rotating frame is fixedly inserted between the bottom surface of the sliding cylinder. The rotating frame is fixedly connected with a first motor. The output shaft of the first motor is fixedly connected with a grinding wheel, and the grinding wheel is rotatably connected with the rotating frame; A pressure sensor is arranged between the rotating frame and the bottom surface of the sliding cylinder. A vibration frequency sensor is arranged in the grinding wheel. The first motor is electrically connected to a PLC controller and a data processor in sequence, and the rotation speed of the first motor can be controlled through the data processor.

3. The circumferential surface processing equipment for the coating roller according to claim 1, characterized in that, The vibration damping mechanism includes a storage tank, a one-way inlet valve, and a one-way reflux valve; The storage tank is fixedly connected with the outer wall of the sliding cylinder. Pipes are communicated between both sides of the storage tank and the hydraulic cavity. A one-way inlet valve that conducts unidirectionally towards the storage tank is arranged on one of the pipes, and a one-way reflux valve that conducts unidirectionally towards the hydraulic cavity is arranged on the other pipe. The storage tank stores lubricating oil.

4. The circumferential surface processing equipment for the coating roller according to claim 2, characterized in that, The cooling mechanism includes a diversion pipe, a spray orifice plate, and a hydraulic pump; Fixed seats are arranged on both sides of the workbench. The fixed seats are fixedly connected with diversion pipes. The diversion pipes are fixedly connected with spray orifice plates. The water outlet holes on the spray orifice plates all face the middle of the workbench. The two diversion pipes are communicated through a pipe, and one of the diversion pipes is communicated with a hydraulic pump; A first temperature sensor and a second temperature sensor are respectively arranged in the grinding wheel and the spray orifice plate. The hydraulic pump is electrically connected to the PLC controller and the data processor in sequence, and the data processor can regulate the flow rate of the hydraulic pump.

5. The circumferential surface processing device for the coating roller according to claim 4, characterized in that, The rotational speed information of the first motor, the pressure information of the pressure sensor, and the vibration frequency information of the vibration sensor are respectively substituted into the maximum-minimum normalization formula, and a rotational speed index, a pressure index, and a vibration frequency index are respectively generated. The grinding part state evaluation model is: The α, β, and γ are respectively the grinding rate weight coefficient, the vibration frequency weight coefficient, and the extrusion pressure gain weight coefficient, and α + β + γ = 1. The α, β, and γ are calibrated through actual production experience. Among them, β reflects the influence of vibration on wear, and γ is related to the material hardness; G r represents the rotational speed index, f v represents the vibration frequency index, F e represents the pressure index, W S represents the grinding part state evaluation coefficient.

6. The processing equipment for the circumferential side surface of the coating roller according to claim 5, wherein, The temperature state evaluation model is: Among them, T w represents the real-time temperature of the grinding wheel, T C represents the real-time temperature of the cooling water, T rcf represents the reference temperature difference between the grinding wheel and the cooling water; δ is the temperature difference scaling factor, v c represents the cooling water flow rate, unit: m / s, η represents the flow rate inhibition coefficient, unit: s / m, and the specific values of δ and η are calibrated through actual production experience, T S represents the temperature state evaluation coefficient.

7. The processing equipment for the circumferential side surface of the coating roller according to claim 6, characterized in that The state influence factor fitting formula is: where k represents the coupling coefficient, indicating the interaction strength between the grinding wheel and temperature; λ is the temperature decay coefficient, controlling the inhibitory effect of temperature on wear. The specific values of k and λ are calibrated through actual production experience, and I f represents the state influence factor.

8. The circumferential surface processing device of the coating roller according to claim 7, characterized in that A third temperature sensor in contact with the spring is arranged in the hydraulic cavity. A elastic force sensor is arranged between the spring and the slide plate. The elastic force sensor is electrically connected to the data processor. The compression degree of the spring can be calculated by combining the value of the elastic force sensor with the parameter information of the spring. The elastic part state evaluation model is: S S = μ·C d + v·(T S - T0) + ξ·f s + ω·I f ; where μ represents the compression sensitivity coefficient, dimensionless, and v represents the temperature drift coefficient with the unit of °C -1 , and ξ represents Vibration damping coefficient, unit: s, ω represents the dimensionless influence factor weight; C d represents the degree of compression of the spring, unit: %, T S represents the temperature of the spring, unit: °C, T0 represents the reference temperature of the spring, unit: °C, f s represents the vibration frequency of the spring, where μ, v, ξ, ω, and T0 are all calibrated through actual production experience.

9. The circumferential surface processing device for the coating roll according to claim 8, wherein, The reflux speed regulation model is: v t = v b ·(1 + ρ·tan(S S )); where ρ represents the reflux adjustment coefficient, dimensionless, used to control the adjustment range of the spring state on the flow velocity; S S represents the elastic member state evaluation coefficient, v b represents the basic reflux velocity of the lubricating fluid, unit: mm / s,; tan(*) represents the hyperbolic tangent function, which can make S S dimensionless.

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