Online detecting and grinding device for surface roughness of high-speed rotating copper roller

Abstract

The invention relates to an online detecting and grinding device for the surface roughness of a high-speed rotating copper roller. The online detecting and grinding device comprises a supporting table; the grinding system comprises a rough trimming assembly arranged on the supporting table and a fine trimming assembly arranged above the rough trimming assembly; the online roughness detection system comprises a plurality of roughness measuring instruments arranged in the supporting table and is used for collecting surface images of the high-speed rotating copper roller in real time and transmitting the detected images to the processor in real time; the data receiving and processing system comprises a processor and a motion controller, and the processor is used for collecting the copper roller surface image transmitted by the on-line roughness detection system, rapidly analyzing roughness data of the copper roller surface, generating a copper roller surface waviness graph and sending the copper roller surface waviness graph to the motion controller; an area needing to be polished is judged, and a polishing instruction is generated and transmitted to the motion controller; and the motion controller is used for receiving the instruction sent by the processor and moving the fine trimming assembly to the surface of the copper roller needing to be polished for polishing.

Description

Technical Field

[0001] The invention relates to the technical field of detection devices, and in particular to an online detection and polishing device for the surface roughness of a high-speed rotating copper roller. Background Art

[0002] Amorphous alloys refer to glassy alloys in which the solid atomic arrangement in three-dimensional space does not have long-range order but has short-range order, and can maintain a relatively stable state within a certain temperature range. Compared with crystalline alloys, amorphous alloys exhibit unique physical and chemical properties, such as high strength, high hardness, superplasticity, excellent magnetic properties, corrosion resistance and wear resistance. These characteristics make amorphous alloys have broad application potential in the fields of mechanical electronics, aerospace, automotive industry, national defense and military.

[0003] At present, the preparation method of amorphous alloy strips has been relatively mature. Generally speaking, the preparation method of amorphous alloy strips can be divided into a double-roll method and a single-roll method. The double-roll method is to spray the molten alloy onto the contact surface between two relatively high-speed rotating cooling rollers, and quickly solidify to obtain an amorphous strip. In theory, the cooling speed of the double-roll method is higher than that of the single-roll method, and the surface quality of the processed strip is better, but due to the limitations of engineering technology, the double-roll method is difficult to play its advantages. Therefore, the single-roll strip making method is still mainly used in industrial production: first, a certain ratio of raw materials is melted into alloy liquid by a medium-frequency induction furnace; then, the alloy liquid is poured into a nozzle bag with a slit nozzle at the bottom, and the alloy liquid in the nozzle bag flows out of the nozzle and spreads on the outer circumferential surface of the high-speed rotating copper alloy cooling roller under the nozzle, and a certain size of alloy liquid melt pool is formed between the outer circumferential surface of the cooling roller and the bottom surface of the nozzle. The alloy liquid is quickly extracted and quickly cooled, and the alloy liquid in the nozzle gap is continuously added to the melt pool, thereby forming a continuous thin strip with an amorphous or nanocrystalline structure.

[0004] Among them, the surface roughness of the cooling copper roller, as a key component that directly contacts the alloy liquid, has a crucial influence on the apparent quality and performance of the amorphous strip. First, the roughness of the roller surface affects the fluidity and solidification speed of the molten metal during the cooling process. The rough surface of the cooling roller may cause uneven contact between the molten metal and the roller surface, resulting in inconsistent cooling speeds of the melt in different areas, resulting in uneven thickness distribution of the amorphous strip. In addition, the rough roller surface will hinder the flow of the molten metal, and more material may accumulate in local areas, forming a phenomenon of local thickness increase, while the material may be thinner in other areas. In this way, the overall thickness of the strip will fluctuate, affecting the accuracy and consistency of subsequent processing. Secondly, the rough surface of the cooling copper roller will form deep and large pits and dense long and wide rectangular pits on the roller surface of the amorphous strip. On the one hand, these defects will become stress concentration points, reduce the mechanical properties of the material, and increase the risk of material fatigue; on the other hand, they will increase the pinning effect of the magnetic domain wall, forming a closed domain structure that is difficult to magnetize, making magnetization difficult, and increasing the iron loss and excitation power of the strip.

[0005] However, there are few studies on this issue in China. Patent [CN116625190B] discloses a device composed of a slide bar, a power cylinder and a detection mechanism, which realizes the function of machine centering, reduces the risk of damage caused by manually installing high-sensitivity sensors, and stops the detected workpiece while pushing it by moving the components, reducing the error in measurement. However, its detection device is a probe. Considering that the surface of the high-speed rotating copper roller will produce strong friction, it will not only increase the loss and accuracy of the probe, but also reduce the roughness of the roller surface with a high probability. Therefore, it is not suitable for detecting the surface of the high-speed rotating copper roller; Patent No. [CN205090951U] discloses a non-contact surface roughness detection device, including an optical platform, a horizontal adjustment module, a test piece adjustment module, and a reference piece adjustment module. It uses an optical method and does not damage the surface of the object during the detection process. However, its structure is relatively complex and is also easily disturbed by the external environment. It is not suitable for high-speed copper roller surface detection. Patent No. [CN117655832A] sets detection blocks at equal distances. Once the grinding device encounters a protrusion on the surface while moving along the roller surface, the detection block will be triggered. At this time, the grinding device will grind the position according to the transmitted signal point, achieving precise control of grinding and increasing the corresponding speed. Although the device can effectively grind the roller surface, it is only suitable for the roller to be stationary and cannot grind the roller that rotates at high speed. Summary of the invention

[0006] In order to simultaneously overcome the urgent problem that the existing devices are unable to perform rough detection of the roughness of a high-speed rotating copper roller and perform roller surface polishing and repair, the present invention provides an online detection and polishing device for the surface roughness of a high-speed rotating copper roller.

[0007] The purpose of the present invention can be achieved by the following technical solutions:

[0008] An online detection and polishing device for the surface roughness of a high-speed rotating copper roller, comprising:

[0009] Support table;

[0010] A grinding system, the grinding system comprising a rough trimming assembly arranged on a support table, and a fine trimming assembly arranged above the rough trimming assembly, the fine trimming assembly comprising a small flap wheel;

[0011] An online roughness detection system, the online roughness detection system comprising a plurality of roughness measuring instruments arranged in a support platform, for real-time acquisition of a surface image of a high-speed rotating copper roller, and real-time transmission of the detected image to a processor;

[0012] The data receiving and processing system includes a processor and a motion controller. The processor is used to collect the surface image of the copper roller transmitted by the online roughness detection system, process the collected image, obtain the roughness data of the copper roller surface, generate the copper roller surface waviness map, compare the waviness collected from the copper roller surface waviness map with the target waviness value input by the user, and if the actual

[0013] If the waviness value differs from the target waviness value input by the user by more than 0.2 μm, a grinding instruction is sent to the motion controller; the motion controller is used to receive the instruction sent by the processor, move the small impeller of the finishing component to the surface of the copper roller that needs to be polished for polishing, and ensure the consistency of the roller surface corrugation by controlling the polishing pressure of the small impeller.

[0014] Furthermore, the rough trimming assembly includes a large impeller and a first motor, and the first motor and the large impeller are connected by a transmission belt arranged therebetween.

[0015] Furthermore, the rotation direction of the large impeller is the same as the rotation direction of the copper roller.

[0016] Furthermore, the finishing component comprises:

[0017] Two screw slides are respectively arranged on both sides of the rough repair component, each of the screw slides includes a screw, a slide rotatably connected to the screw, and a first mounting block and a second mounting block respectively arranged at both ends of the screw, the first mounting block is arranged on the support table surface and rotatably connected to the screw, a worm gear meshingly connected to the screw is arranged in the second mounting block, two worm gears arranged opposite to each other are respectively connected to the two ends of the first slide arranged therebetween, and one of the worm gears is driven by a second motor arranged at its driving end;

[0018] A second slide bar is arranged between two slides, a third motor is arranged on one of the slides and a driving end of the third motor is connected to the second slide bar, a mounting seat is arranged on the second slide bar and is rotatably connected thereto, an electric push rod is arranged on the mounting seat, and the small impeller is arranged at the pushing end of the electric push rod. Furthermore, the rotation direction of the small impeller is the same as that of the copper roller.

[0019] Furthermore, a coupling is provided at the connection between the worm gear and the end of the first sliding rod.

[0020] Furthermore, the thrust of the push end of the electric push rod is recorded as F, F = KΔμ,

[0021] Where K is a constant, Δμ=|μ s -μ a |,μ s is the target value of copper roller surface waviness, μ a It is the measured value of the copper roller surface waviness.

[0022] Furthermore, the online roughness detection system also includes:

[0023] Two baffles arranged opposite to each other in the support platform;

[0024] A third sliding bar is arranged between the two baffles, and both ends of the third sliding bar are rotatably connected to the two baffles respectively, and a plurality of the roughness measuring instruments are rotatably connected to the third sliding bar.

[0025] Furthermore, the roughness measuring instrument comprises:

[0026] A base, the base being rotatably connected to the third sliding rod;

[0027] A shell is arranged on the base, the shell is provided with a laser emission window, an image receiving window and a light intensity adjustment knob, and a distance sensor, a laser emitter, a beam splitter screen, a frosted glass sheet and a CMOS camera are arranged inside the shell;

[0028] The angle between the distance sensor and the laser emission window is 20-40°. The sensor can measure the distance of the strip so that the focus of the light beam is always at the correct distance. The laser emitter is any one of a semiconductor laser, a solid laser or a gas laser. The laser emitter projects on the strip 100 times per second. The beam splitter, the frosted glass sheet and the CMOS camera are placed on the same horizontal line in sequence. The angle between the beam splitter and the horizontal line is 45°, and the angle between the frosted glass sheet and the horizontal line is 90°. The beam splitter projects the light beam passing through the image receiving window onto the frosted glass sheet. The frosted glass sheet is used to receive light and present an image.

[0029] Preferably, the incident angle of the laser light emitted by the laser emitter is 30°-60°, and the number of roughness measuring instruments is 5 or more.

[0030] After the light is emitted, the scattered image of the object surface is received by the mirror. The built-in CMOS camera of the roughness measuring instrument captures the scattered image of the laser line. At the same time, the collected image is pre-processed to obtain a microscopic image of the copper roller surface, and the processed image is transmitted to the processor.

[0031] Furthermore, a heat dissipation fan is arranged outside the housing, preferably a semiconductor heat dissipation fan, and the heat dissipation fan performs heat dissipation when the housing temperature exceeds 50° C., ensuring that the measuring device is not affected by the temperature.

[0032] Compared with the prior art, the present invention has the following advantages:

[0033] (1) The present invention provides an online detection and polishing device for the surface roughness of a high-speed rotating copper roller. Compared with the method of detecting the roughness of a copper roller by a traditional detection head, the device adopts an optical detection method to visually display and record the size and distribution of the surface roughness of the high-speed rotating copper roller. The device is rotatably connected to the slide rod and can detect the roughness of copper rollers of different radii by adjusting the spacing of the roughness measuring instrument. The device has a simple structure and a wide range of applications.

[0034] (2) The present invention provides an online detection and polishing device for the surface roughness of a high-speed rotating copper roller. The device adopts a double-layer flap wheel polishing structure. The large flap wheel is responsible for rough grinding to largely ensure the flatness of the copper roller surface; the small flap wheel is responsible for fine grinding. The motion controller controls its motion direction and pressure to ensure the consistency of the copper roller surface roughness and improve the quality of the product.

[0035] (3) The present invention provides an online detection and polishing device for the surface roughness of a high-speed rotating copper roller, which realizes the integration of the detection and polishing devices and increases production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is an online detection and polishing device for the surface roughness of a high-speed rotating copper roller in the embodiment;

[0037] Figure 2 for Figure 1 Connection diagram of the middle screw and worm gear;

[0038] Figure 3 for Figure 1 The connection diagram between the large and medium impellers and the first motor;

[0039] Figure 4 for Figure 1 Installation diagram of multiple roughness measuring instruments;

[0040] Figure 5 A schematic diagram of the external structure of the roughness measuring instrument in the embodiment;

[0041] Figure 6 Schematic diagram of the internal structure of the roughness measuring instrument in the embodiment;

[0042] As shown in the figure: 1-first slide bar; 2-coupling; 3-second motor; 4-electric push rod; 5-small impeller; 6-second slide bar; 7-large impeller; 8-first mounting block; 9-roughness measuring instrument; 10-baffle; 11-third slide bar; 12-first motor; 13-processor; 14-motion controller; 15-support table; 16-screw; 17-second mounting block; 18-slide table; 19-third motor; 20-worm gear; 21-conveyor belt; 22-large impeller transmission wheel; 23-first motor driving wheel; 901-laser emission window; 902-image receiving window; 903-light size adjustment knob; 904-cooling fan; 905-base; 906-distance sensor; 907-laser emitter; 908-beam splitter screen; 909-ground glass; 910-CMOS camera. DETAILED DESCRIPTION

[0043] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0044] Example

[0045] In order to simultaneously overcome the urgent problem that the existing device cannot detect the roughness of the high-speed rotating copper roller and polish and repair the roller surface, this embodiment provides an online detection and polishing device for the surface roughness of the high-speed rotating copper roller. The specific structure is shown in Figure 1-6 ,include:

[0046] Support platform 15;

[0047] A grinding system, the grinding system comprising a rough trimming assembly arranged on the support table 15, and a fine trimming assembly arranged above the rough trimming assembly, the fine trimming assembly comprising a small flap wheel 5;

[0048] An online roughness detection system, the online roughness detection system comprises a plurality of roughness measuring instruments 9 arranged in a support table 15, for collecting a surface image of a high-speed rotating copper roller in real time, and transmitting the detected image to a processor in real time;

[0049] A data receiving and processing system, the data receiving and processing system includes a processor 13 and a motion controller 14, the processor 13 is used to collect the copper roller surface image transmitted by the online roughness detection system, process the collected image, obtain the roughness data of the copper roller surface, generate a copper roller surface waviness map, and compare the waviness collected from the copper roller surface waviness map with the target waviness value input by the user. If the actual waviness value differs from the target waviness value input by the user by more than 0.2μm, a polishing instruction is sent to the motion controller 14; the motion controller 14 is used to receive the instruction sent by the processor 13, move the small impeller 5 of the finishing component to the copper roller surface that needs to be polished for polishing, and ensure the consistency of the roller surface waviness by controlling the polishing pressure of the small impeller 5.

[0050] Please see again Figure 1 , Figure 3 In this embodiment, the rough trimming assembly includes a large impeller 7 and a first motor 12, and the first motor 12 is connected to the large impeller 7 by a transmission belt 21 arranged therebetween. The rotation direction of the large impeller 7 is the same as the rotation direction of the copper roller. Specifically, a large impeller transmission wheel 22 is provided at one end of the large impeller 7, a first motor driving wheel 23 is provided at the driving end of the first motor 12, and the conveyor belt 21 is wound around the large impeller transmission wheel 22 and the first motor driving wheel 23.

[0051] Please see again Figure 1 , Figure 2 In this embodiment, the fine-tuning component includes:

[0052] Two screw slides are respectively arranged on both sides of the rough repair component, each of the screw slides includes a screw 16, a slide 18 rotatably connected to the screw 16, and a first mounting block 8 and a second mounting block 17 respectively arranged at both ends of the screw 16, the first mounting block 8 is arranged on the table surface of the support table 15 and is rotatably connected to the screw 16, and a worm gear 20 meshingly connected to the screw 16 is arranged in the second mounting block 17, and the two worm gears 20 arranged opposite to each other are respectively connected to the two ends of the first slide 1 arranged therebetween, and one of the worm gears 20 is driven by a second motor 3 arranged at its driving end;

[0053] A second slide bar 6 is arranged between two slide tables 18, wherein a third motor 19 is arranged on one of the slide tables 18 and a driving end of the third motor 19 is connected to the second slide bar 6, a mounting seat rotatably connected thereto is arranged on the second slide bar 6, an electric push rod 4 is arranged on the mounting seat, a small impeller 5 is arranged at the pushing end of the electric push rod 4, and the extension and retraction of the small impeller 5 is controlled by the electric push rod 4.

[0054] In this embodiment, the rotation direction of the small flap wheel 5 is the same as the rotation direction of the copper roller.

[0055] Please see again Figure 1 In this embodiment, a coupling 2 is provided at the connection between the worm gear 20 and the end of the first slide bar 1. The coupling 2 serves to compensate for the error caused by the non-parallel axis spacing or the axis offset to prevent equipment damage; and connects the worm gear 20 and the first slide bar 1 so that they can effectively transmit torque and ensure the transmission of power.

[0056] In this embodiment, the thrust of the push end of the electric push rod 4 is recorded as F, F = KΔμ, where K is a constant, Δμ = |μ s -μ a |,μ s is the target value of copper roller surface waviness, μ a It is the measured value of the copper roller surface waviness.

[0057] In this embodiment, the online roughness detection system further includes:

[0058] Two baffles 10 are arranged oppositely in the support platform 15;

[0059] A third sliding rod 11 is arranged between the two baffles 10 , and both ends of the third sliding rod 11 are rotatably connected to the two baffles 10 , respectively. The plurality of roughness measuring instruments 9 are rotatably connected to the third sliding rod 11 .

[0060] The roughness measuring instrument 9 is used to measure the roughness and transmit the data to the processor 13, including:

[0061] A base 905, wherein the base is rotatably connected to the third sliding rod 11;

[0062] A shell is arranged on the base 905, and a laser emission window 901, an image receiving window 902 and a light intensity adjustment knob 903 are arranged on the shell. A distance sensor 906, a laser emitter 907, a beam splitter screen 908, a frosted glass sheet 909 and a CMOS camera 910 are arranged in the shell;

[0063] The angle between the distance sensor 906 and the laser emission window 901 is 20-40°. The sensor can measure the distance of the strip so that the focus of the light beam is always at the correct distance. The laser emitter is any one of a semiconductor laser, a solid laser or a gas laser. The laser emitter projects on the strip 100 times per second. The beam splitter 908, the frosted glass sheet 909 and the CMOS camera 910 are placed on the same horizontal line in sequence. The angle between the beam splitter 908 and the horizontal line is 45°, and the angle between the frosted glass sheet 909 and the horizontal line is 90°. The beam splitter 908 projects the light beam passing through the image receiving window onto the frosted glass sheet 909. The frosted glass sheet 909 is used to receive light and present an image.

[0064] Working principle:

[0065] During use of the device in this embodiment, the large impeller 7 is always rotating and polishing, and the rotation direction is the same as the rotation direction of the copper roller. The emission light beam of the laser emitter 907 of the roughness measuring instrument 9 is irradiated to the surface of the high-speed rotating copper roller at a special angle, and the incident angle of the light is preferably 30°-60°.

[0066] After the light is emitted, the image scattered by the object surface is received through the mirror surface. The built-in integrated CMOS camera 910 of the roughness measuring instrument 9 captures the image scattered by the laser line. At the same time, the collected image is processed to obtain a microscopic image of the copper roller surface. The processed image is transmitted to the processor 13. The processor 13 quickly analyzes the roughness data of the copper roller surface and generates a copper roller surface waviness map. The waviness map is divided into 5 sections. The waviness of each section is compared with the waviness target value input by the user. If the actual waviness value differs from the target waviness value by more than 0.2 μm, polishing is required. The processor 13 generates a polishing instruction and transmits it to the motion controller 14. After receiving the instruction sent by the processor 13, the motion controller 14 controls the finishing component to move to the copper roller surface that needs to be polished. The grinding pressure of the small impeller 5 is controlled by controlling the thrust of the electric push rod 4 to ensure the consistency of the roller surface waviness.

[0067] The above is only a preferred embodiment of the present invention, and does not limit the present invention in other forms. Any technician familiar with the profession may use the above disclosed technical content to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention without departing from the technical solution of the present invention still belongs to the protection scope of the technical solution of the present invention.

Claims

1. An online detection and polishing device for the surface roughness of a high-speed rotating copper roller, characterized in that: include: Support platform (15); A grinding system, the grinding system comprising a rough trimming component arranged on a support table (15) and a fine trimming component arranged above the rough trimming component, the fine trimming component comprising a small flap wheel (5); An online roughness detection system, the online roughness detection system comprising a plurality of roughness measuring instruments (9) arranged in a support platform (15), for collecting a surface image of a high-speed rotating copper roller in real time, and transmitting the detected image to a processor in real time; A data receiving and processing system, the data receiving and processing system comprising a processor (13) and a motion controller (14), the processor (13) being used to collect a copper roller surface image transmitted by an online roughness detection system, process the collected image, quickly analyze the roughness data of the copper roller surface, generate a copper roller surface waviness map, compare the waviness collected from the copper roller surface waviness map with a target waviness value input by a user, and send a polishing instruction to the motion controller (14) if the difference between the actual waviness value and the target waviness value input by the user exceeds 0.2 μm; the motion controller (14) being used to receive the instruction sent by the processor (13), move the small impeller (5) of the finishing component to the copper roller surface that needs to be polished for polishing, and control the polishing pressure of the small impeller (5) by controlling the thrust of the electric push rod to ensure the consistency of the roller surface waviness.

2. The device for online detection and polishing of the surface roughness of a high-speed rotating copper roller according to claim 1, characterized in that: The rough trimming assembly comprises a large impeller (7) and a first motor (12), and the first motor (12) is connected to the large impeller (7) by a transmission belt (21) arranged therebetween.

3. The device for online detection and polishing of the surface roughness of a high-speed rotating copper roller according to claim 2, characterized in that: The rotation direction of the large impeller (7) is the same as that of the copper roller.

4. The device for online detection and polishing of the surface roughness of a high-speed rotating copper roller according to claim 1, characterized in that: The finishing component comprises: Two screw slides are respectively arranged on both sides of the rough repair component, each of the screw slides comprises a screw (16), a slide (18) rotatably connected to the screw (16), a first mounting block (8) and a second mounting block (17) respectively arranged at both ends of the screw (16), the first mounting block (8) is arranged on the table surface of the support table (15) and is rotatably connected to the screw (16), the second mounting block (17) is provided with a worm gear (20) meshingly connected to the screw (16), the two worm gears (20) arranged opposite to each other are respectively connected to the two ends of the first slide (1) arranged therebetween, and one of the worm gears (20) is driven by a second motor (3) arranged at its driving end; A second slide bar (6) is arranged between two slide tables (18), wherein a third motor (19) is arranged on one of the slide tables (18) and a driving end of the third motor (19) is connected to the second slide bar (6), a mounting seat rotatably connected thereto is arranged on the second slide bar (6), an electric push rod (4) is arranged on the mounting seat, and a small flap wheel (5) is arranged at the pushing end of the electric push rod (4).

5. The device for online detection and polishing of the surface roughness of a high-speed rotating copper roller according to claim 4, characterized in that: The rotation direction of the small impeller (5) is the same as that of the copper roller.

6. The device for online detection and polishing of the surface roughness of a high-speed rotating copper roller according to claim 4, characterized in that: A coupling (2) is provided at the connection between the worm gear (20) and the end of the first sliding rod (1).

7. The device for online detection and polishing of the surface roughness of a high-speed rotating copper roller according to claim 4, characterized in that: The thrust of the push end of the electric push rod (4) is recorded as F, F = KΔμ, Where K is a constant, Δμ=|μ s -μ a |,μ s Input the target value of copper roller surface waviness, μ a It is the measured value of the copper roller surface waviness.

8. The device for online detection and polishing of the surface roughness of a high-speed rotating copper roller according to claim 1, characterized in that: The online roughness detection system also includes: Two baffles (10) arranged opposite to each other in the support platform (15); A third sliding rod (11) is arranged between the two baffles (10), and both ends of the third sliding rod (11) are rotatably connected to the two baffles (10) respectively, and a plurality of the roughness measuring instruments (9) are rotatably connected to the third sliding rod (11).

9. The device for online detection and polishing of the surface roughness of a high-speed rotating copper roller according to claim 8, characterized in that: The roughness measuring instrument (9) comprises: A base (905), the base being rotatably connected to the third sliding rod (11); A shell arranged on a base (905), the shell being provided with a laser emission window (901), an image receiving window (902) and a light intensity adjustment knob (903), and the shell being provided with a distance sensor (906), a laser emitter (907), a beam splitter screen (908), a frosted glass sheet (909) and a CMOS camera (910); The angle between the distance sensor (906) and the laser emission window (901) is 20-40°, the beam splitter (908), the frosted glass sheet (909) and the CMOS camera (910) are sequentially placed on the same horizontal line, the angle between the beam splitter (908) and the horizontal line is 45°, and the angle between the frosted glass sheet (909) and the horizontal line is 90°.

10. The device for online detection and polishing of the surface roughness of a high-speed rotating copper roller according to claim 9, characterized in that: A cooling fan (904) is also provided on the outside of the shell, and the cooling fan (904) produces a cooling and heat dissipation effect when the shell temperature exceeds 50°C.

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