Grinding and Reproduction Device for Inserting Sleeves on Waste Backup Rolls of Rolling Mills

Abstract

The invention discloses a grinding and reshaping device for inserting sleeves of waste support rollers of rolling mills, and specifically relates to the technical field of repairing support rollers of rolling mills in the metallurgical industry. The device first installs the support roller body and the roller sleeve on the shaft groove, and connects and fixes the rotating mechanism with the support roller body through the push-pull hydraulic cylinder and the lifting mechanism. The rotating mechanism drives the roller sleeve to rotate, and the laser rangefinder of the detection mechanism performs multi-point detection on the outer surface of the roller sleeve to determine the flatness and convex and concave shape and calculate the extrusion radius. The shaping component performs shaping accordingly. The laser rangefinder monitors in real time during the shaping process. After the shaping, the air pump inflates, and the pressure sensor detects the fitting condition. Finally, the grinding mechanism grinds the roller sleeve according to the data of the laser rangefinder until the size and roughness meet the requirements. The invention can effectively solve the problems of loose fitting between the support roller and the roller sleeve and inaccurate grinding in the prior art, realize the efficient repair of waste support rollers, and improve the repair quality and accuracy.

Description

Technical Field

[0001] The present invention relates to the technical field of repairing support rolls of rolling mills in the metallurgical industry. More specifically, the present invention relates to a grinding and replicating device for fitting sleeves on waste support rolls of rolling mills. Background Art

[0002] Support rolls play an extremely important role in rolling production. In recent years, although the quality of support rolls has been getting better and the hardness has been getting higher, as consumable parts, support rolls still suffer serious wear after long-term use, and a large number of waste support rolls are generated every year. If the waste support rolls are directly discarded without recycling, it will undoubtedly cause huge waste of resources and increase the replacement cost at the same time.

[0003] In the prior art, the inlay method is generally used to repair waste support rolls: when the roll diameter of the waste support roll is reduced to the point where it cannot be used, or the surface heat treatment hardness is too low to be used, in order to reuse it, a roll sleeve is inlaid on the outside of the roll core to form an inlaid support roll, thereby realizing the reuse of the waste support roll.

[0004] In the actual inlay repair process of the inlay repair method, the size and adequacy of the contact area between the roll sleeve and the support roll directly affect the repair effect. In the prior art, hot assembly is generally used between the support roll and the roll sleeve to achieve interference fit. However, due to the processing accuracy of the outer cylindrical surface of the support roll and the inner surface of the roll sleeve being difficult to reach a very ideal level, there will still be some air layers (tiny gaps) between the support roll and the roll sleeve after hot assembly, and the two cannot be fully fitted, which will in turn affect the repair effect of the support roll.

[0005] The invention patent with the patent application publication number CN202410491883.4 discloses a waste support roll inlay repair device and its repair method, belonging to the technical field of waste support roll repair devices for rolling mills in the metallurgical industry. The technical solution is: it includes a bottom cabinet, a moving block, a support rod, a bearing platform, a driver, a grinding mechanism, and a matching roll. A moving block is arranged in the bottom cabinet, the bearing platform is fixed on the moving block through the support rod, a driver for matching with the support roll and the roll sleeve is arranged above the bearing platform, a grinding mechanism for matching with the support roll and the roll sleeve is arranged on one side of the bearing platform, and a matching roll for matching with the support roll and the roll sleeve is arranged on the other side of the bearing platform. The beneficial effect of this technology is: it can make the support roll and the roll sleeve fully fit, effectively eliminate the air layer between the fitting surfaces, and ensure the repair effect.

[0006] However, in actual use, although the air sandwich between the contact surfaces of the backup roll and the roll sleeve is effectively eliminated, it is impossible to detect whether the air sandwich is eliminated. Secondly, although the surface unevenness can be ground, when grinding with a traditional grinding mechanism, precise grinding processing cannot be carried out according to the size of the finished backup roll in subsequent grinding, resulting in difficulty in precisely controlling the flatness of the outer surface of the roll sleeve, thereby affecting the quality of the repaired product. Therefore, a grinding and profiling device for the inlaid sleeve of the waste backup roll of a rolling mill is proposed. Summary of the Invention

[0007] In order to overcome the above-mentioned defects of the prior art, the present invention provides a grinding and profiling device for the inlaid sleeve of the waste backup roll of a rolling mill to solve the problems raised in the above-mentioned background technology.

[0008] To achieve the above object, the present invention provides the following technical solution: A grinding and profiling device for the inlaid sleeve of the waste backup roll of a rolling mill, including a bottom plate, the bottom plate is externally connected with a program control unit, the program control unit includes a software control system and a hardware drive unit, and the software control system controls the hardware drive unit to work. A plurality of columns are installed on the bottom plate, and two cross rails are supported at the tops of the plurality of columns. One end of the two cross rails is connected with a fixing plate, and a lifting mechanism is slidably installed on the two cross rails. A rotating mechanism is installed at the bottom end of the lifting mechanism, and one side of the lifting mechanism is connected with a push-pull hydraulic cylinder installed on the fixing plate;

[0009] A detection groove is opened on the bottom plate, a shaft seat is installed in the middle of the detection groove, a shaft groove is installed in the shaft seat, a pressure sensor is installed at the bottom end inside the detection groove, an air inlet hole is opened on one side of the detection groove, the air inlet hole is connected with an air pump installed on the bottom plate, and a shaft seal is installed at the top edge of the detection groove;

[0010] The shaft groove supports a backup roll body, shaft necks inserted and matched with the shaft groove are arranged at both ends of the backup roll body, a roll sleeve pressed on the shaft seal is sleeved on the backup roll body, and the top shaft neck is connected and matched with the bottom end of the rotating mechanism;

[0011] A plurality of shaping components are installed on the outside of the detection groove at equal circumferential intervals. A detection mechanism is arranged on one side of one of the shaping components, and a grinding mechanism is arranged on one side of the other shaping component. A laser rangefinder is installed on the detection mechanism.

[0012] Preferably, the grinding mechanism includes a second slide rail, a second moving frame, a second hydraulic telescopic rod, a fourth motor and a grinding roll. The second slide rail is installed on the bottom plate, the second moving frame is slidably installed on the second slide rail, the second moving frame is connected with a second hydraulic telescopic rod installed on the bottom plate, the fourth motor is installed on the second moving frame, and the output end of the fourth motor is connected with the grinding roll.

[0013] Preferably, the lifting mechanism includes a sliding seat, a hydraulic lifting cylinder, and a chassis. The sliding seat is slidably connected to two cross rails. One side of the sliding seat is connected to the telescopic end of a push-pull hydraulic cylinder. A hydraulic lifting cylinder is installed on the sliding seat, and a chassis is installed at the output end of the hydraulic lifting cylinder.

[0014] Preferably, the rotating mechanism includes a first motor, a rotating rod, and a rotating sleeve. The first motor is installed on the chassis. The telescopic end of the first motor is provided with a rotating rod, and a rotating sleeve is installed at the bottom end of the rotating rod. The rotating sleeve is sleeved on the journal at the top.

[0015] Preferably, the shaping assembly includes a first slide rail, a first moving frame, a first hydraulic telescopic rod, a second motor, and a shaping roller. The first slide rail is installed on the bottom plate. A first moving frame is slidably connected to the first slide rail. One side of the first moving frame is connected to a first hydraulic telescopic rod installed on the bottom plate. A second motor is installed on the first moving frame, and a shaping roller is installed at the telescopic end of the second motor.

[0016] Preferably, the detection mechanism includes a fixed frame, a third motor, a screw rod, a guide rod, and a lifting slider. The fixed frame is installed on the bottom plate. A third motor is installed on the fixed frame. The output end of the third motor is connected to a screw rod. A guide rod is arranged in parallel on one side of the screw rod. The lifting slider is installed on the screw rod and is slidably connected to the guide rod. A laser rangefinder is installed on the lifting slider, and the detection direction of the laser rangefinder is perpendicular to the axis of the support roller body.

[0017] Preferably, the two cross rails are arranged in parallel, and an inlet and an outlet are arranged at one end of the two cross rails.

[0018] Preferably, a CCD is installed on the chassis, and the CCD is arranged in cooperation with the rotating mechanism.

[0019] The technical effects and advantages of the present invention are as follows:

[0020] 1. By using the laser rangefinder to perform multi-point distance detection on the outer surface of the roller sleeve, it is possible to accurately judge the flatness of the roller sleeve surface, determine the shape of unevenness, and calculate the radius after extrusion into a cylinder, thereby providing an accurate adjustment basis for the shaping assembly, effectively improving the flatness of the roller sleeve, making the outer surface of the roller sleeve smoother and more uniform, and laying a good foundation for subsequent grinding.

[0021] 2. By using an air pump and a pressure sensor to detect the fitting condition between the roller sleeve and the support roller body, it can ensure that the two are closely fitted, eliminate the air sandwich layer, enhance the bonding degree, avoid the problem of poor repair effect caused by insufficient fitting, and improve the overall performance and service life of the support roller after repair.

[0022] 3. During the grinding process, based on the detection by the laser rangefinder, the thickness of the grinding pin can be accurately judged, enabling precise grinding of the outer surface of the roll sleeve, ensuring that the size of the support roll after sleeving the roll sleeve meets the usage requirements. At the same time, the surface roughness can be detected to ensure that the outer surface quality of the repaired support roll reaches the standard and meets the usage needs.

[0023] 4. The work of the shaping component not only improves the surface quality of the roll sleeve but also makes the stress distribution on the roll sleeve more uniform during grinding, avoiding stress concentration, effectively protecting the grinding roll, reducing its wear, extending the service life of the grinding roll, and reducing the equipment maintenance cost. Brief Description of the Drawings

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0025] Figure 2 It is a schematic diagram of the support structure on the bottom plate of the present invention.

[0026] Figure 3 It is a schematic diagram of the structure on the bottom plate of the present invention for connecting with the bottom of the support roll body.

[0027] Figure 4 It is a schematic diagram of the connection structure between the lifting mechanism and the rotating mechanism of the present invention.

[0028] Figure 5 It is a schematic diagram of the structure of the shaping component of the present invention.

[0029] Figure 6 It is a schematic diagram of the structure of the grinding pin mechanism of the present invention.

[0030] Figure 7 It is a schematic diagram of the connection structure between the detection mechanism and the laser rangefinder of the present invention.

[0031] Reference numerals are: 1. Bottom plate; 2. Pillar; 3. Cross rail; 4. Fixed plate; 5. Lifting mechanism; 501. Slide seat; 502. Hydraulic lifting cylinder; 503. Underframe; 6. Rotating mechanism; 601. First motor; 602. Rotating rod; 603. Rotating sleeve; 7. Shaping component; 701. First slide rail; 702. First moving frame; 703. First hydraulic telescopic rod; 704. Second motor; 705. Shaping roll; 8. Detection mechanism; 801. Fixed frame; 802. Third motor; 803. Screw rod; 804. Guide rod; 805. Lifting slider; 9. Grinding pin mechanism; 901. Second slide rail; 902. Second moving frame; 903. Second hydraulic telescopic rod; 904. Fourth motor; 905. Grinding roll; 10. Roll sleeve; 11. Support roll body; 12. Journal; 13. Air pump; 14. Detection groove; 15. Pressure sensor; 16. Axle seat; 17. Axle groove; 18. Shaft seal; 19. Air inlet hole; 20. Push-pull hydraulic cylinder; 21. Laser rangefinder. Detailed implementation mode

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0033] Such as attached Figures 1 - 7 As shown in the grinding and replica device for the worn support roll sleeve of a rolling mill, it includes a bottom plate 1, and the bottom plate 1 is externally connected with a program control unit. The program control unit includes a software control system and a hardware drive unit. The hardware drive unit is controlled by the software control system to work. A plurality of struts 2 are installed on the bottom plate 1, and two cross rails 3 are supported at the tops of the plurality of struts 2. One end of the two cross rails 3 is connected with a fixing plate 4. A lifting mechanism 5 is slidably installed on the two cross rails 3. A rotating mechanism 6 is installed at the bottom end of the lifting mechanism 5. One side of the lifting mechanism 5 is connected with a push-pull hydraulic cylinder 20 installed on the fixing plate 4;

[0034] A detection groove 14 is opened on the bottom plate 1. A shaft seat 16 is installed in the middle of the detection groove 14. A shaft groove 17 is installed in the shaft seat 16. A pressure sensor 15 is installed at the bottom end inside the detection groove 14. An air inlet hole 19 is opened on one side of the detection groove 14. The air inlet hole 19 is connected with an air pump 13 installed on the bottom plate 1. A shaft seal 18 is installed at the top edge of the detection groove 14;

[0035] The shaft groove 17 supports a support roll body 11. Shaft necks 12 that are inserted and matched with the shaft groove 17 are provided at both ends of the support roll body 11. A roll sleeve 10 that is pressed against the shaft seal 18 is sleeved on the support roll body 11. The top shaft neck 12 is connected and matched with the bottom end of the rotating mechanism 6;

[0036] A plurality of shaping components 7 are installed on the outside of the detection groove 14 at equal circumferential intervals. A detection mechanism 8 is arranged on one side of one of the shaping components 7, and a grinding and pinning mechanism 9 is arranged on one side of the other shaping component 7. A laser rangefinder 21 is installed on the detection mechanism 8.

[0037] The grinding and pinning mechanism 9 includes a second slide rail 901, a second moving frame 902, a second hydraulic telescopic rod 903, a fourth motor 904, and a grinding roll 905. The second slide rail 901 is installed on the bottom plate 1. The second moving frame 902 is slidably installed on the second slide rail 901. The second moving frame 902 is connected with a second hydraulic telescopic rod 903 installed on the bottom plate 1. The second moving frame 902 is installed with a fourth motor 904. The output end of the fourth motor 904 is connected with a grinding roll 905.

[0038] The lifting mechanism 5 includes a sliding seat 501, a hydraulic lifting cylinder 502 and a chassis 503. The sliding seat 501 is slidably connected to the two cross rails 3. One side of the sliding seat 501 is connected to the telescopic end of the push-pull hydraulic cylinder 20. A hydraulic lifting cylinder 502 is installed on the sliding seat 501, and the output end of the hydraulic lifting cylinder 502 is installed with a chassis 503.

[0039] The rotating mechanism 6 includes a first motor 601, a rotating rod 602 and a rotating sleeve 603. The first motor 601 is installed on the chassis 503. The telescopic end of the first motor 601 is installed with a rotating rod 602. The bottom end of the rotating rod 602 is installed with a rotating sleeve 603, and the rotating sleeve 603 is sleeved on the journal 12 at the top.

[0040] The shaping assembly 7 includes a first slide rail 701, a first moving frame 702, a first hydraulic telescopic rod 703, a second motor 704 and a shaping roller 705. The first slide rail 701 is installed on the bottom plate 1. A first moving frame 702 is slidably connected to the first slide rail 701. One side of the first moving frame 702 is connected to a first hydraulic telescopic rod 703 installed on the bottom plate 1. A second motor 704 is installed on the first moving frame 702, and the telescopic end of the second motor 704 is installed with a shaping roller 705.

[0041] The detection mechanism 8 includes a fixed frame 801, a third motor 802, a screw rod 803, a guide rod 804 and a lifting slider 805. The fixed frame 801 is installed on the bottom plate 1. A third motor 802 is installed on the fixed frame 801. The output end of the third motor 802 is connected to a screw rod 803. A guide rod 804 is arranged in parallel on one side of the screw rod 803. The lifting slider 805 is installed on the screw rod 803, and the lifting slider 805 is slidably connected to the guide rod 804. The laser rangefinder 21 is installed on the lifting slider 805, and the detection direction of the laser rangefinder 21 is perpendicular to the axis of the support roller body 11.

[0042] The two cross rails 3 are arranged in parallel, and an inlet and outlet are arranged at one end of the two cross rails 3.

[0043] A CCD is installed on the chassis 503, and the CCD is arranged in cooperation with the rotating mechanism 6.

[0044] Working principle of the present invention: The support roller body 11 and the roller sleeve 10 sleeved together are hoisted onto the shaft groove 17 through the inlet and outlet, and the roller sleeve 10 is pressed against the shaft seal 18. The roller sleeve 10 squeezes the rubber gasket on the top surface of the shaft seal 18, thereby sealing the detection groove 14. The push-pull hydraulic cylinder 20 operates to move the lifting mechanism 5 at a fixed distance, so that the rotating mechanism 6 is directly above the support roller body 11. The CCD detects the orientation of the journal 12, and then the rotating mechanism 6 adjusts so that the rotating sleeve 603 is vertically matched with the journal 12. The lifting mechanism 5 operates so that the rotating sleeve 603 is sleeved on the journal 12, thus completing the fixation. Then the rotating mechanism 6 operates to rotate at a constant speed. At the same time, the detection mechanism 8 operates along with it, so that the laser rangefinder 21 performs multi-point distance detection on the outer surface of the roller sleeve 10, thereby judging the flatness of the surface of the roller sleeve 10. According to the distances of the detected points, the concave and convex shape between the maximum distance and the minimum distance is determined, and then the radius after the concave and convex shape is extruded into a cylinder is automatically calculated. , and then, synchronously adjust each shaping component 7 so that the distance from the outer surface of each shaping roller 705 to the axis of the roller sleeve 10 is . Then start each shaping component 7 and the rotating mechanism 6 to shape the outer surface of the roller sleeve 10. During the shaping process, the detection mechanism 8 cooperates with the laser rangefinder 21 in real time to measure the distance to the roller sleeve 10. After the measured distances are uniform, the air pump 13 operates to inflate the detection groove 14. The pressure sensor 15 detects the air pressure change in the detection groove 14. After the air pressure reaches the set value for air pressure detection after inflation, stop inflating and wait for a moment to observe whether the air pressure data feedback by the pressure sensor 15 fluctuates. When there is no fluctuation, it can be determined that the roller sleeve 10 is closely attached to the support roller body 11, and the preliminary processing is completed;

[0045] After the preliminary processing is completed, judge the overall radius according to the distance detected by the laser rangefinder 21 to the outer surface of the roller sleeve 10, and then operate the grinding mechanism 9 for grinding according to the required dimensions. During the grinding process, determine the grinding degree layer by layer through the detection mechanism 8 and the laser rangefinder 21. After grinding to the required dimensions, stop grinding to complete the repair of the support roller body 11, and obtain a support roller that meets the outer surface flatness and precise dimensions.

[0046] When the lifting mechanism 5 works in cooperation with the rotating mechanism 6, the push-pull hydraulic cylinder 20 operates to move the sliding seat 501 along the two cross rails 3, so that the bottom rotating sleeve 603 is directly above the support roller body 11. The CCD installed on the chassis 503 detects the orientation of the top journal 12, and thus cooperates with the first motor 601 to drive the rotating rod 602 to rotate, so that the bottom rotating sleeve 603 rotates accordingly, enabling the rotating sleeve 603 and the top journal 12 to cooperate up and down. The hydraulic lifting cylinder 502 operates according to the height of the repaired support roller body 11, causing the bottom chassis 503 to descend, so that the rotating sleeve 603 descends, enabling the rotating sleeve 603 to be properly sleeved on the top journal 12, and thus being able to be adjusted according to the height of the support roller body 11, so that the rotating sleeve 603 is sleeved on the journal 12, thereby being able to stabilize the support roller body 11.

[0047] When the rotating mechanism 6 works in cooperation with the detection mechanism 8, the rotating sleeve 603 rotates at a constant speed, enabling the support roller body 11 and the roller sleeve 10 to rotate at a constant speed under the support of the bottom shaft seats 16, shaft grooves 17 and shaft seals 18. During the rotation process, the third motor 802 on the fixed frame 801 operates accordingly, causing the screw rod 803 to rotate. Under the guidance of the guide rod 804, the lifting slider 805 moves up and down, so that the laser rangefinder 21 moves up and down accordingly. The laser rangefinder 21 detects the distances between multiple points and the outer surface of the roller sleeve 10, and thus determines the uneven shape between the maximum distance and the minimum distance based on the detection data of multiple points, and then automatically calculates the radius after the uneven shape is extruded into a cylinder. ;

[0048] Calculating the radius after the uneven shape is extruded into a cylinder Specifically:

[0049] Set the height of the roller sleeve 10 as , with the bottom of the roller sleeve 10 as 's reference plane, and the height direction as axis ( ), during the rotation of the roller sleeve 10, the laser rangefinder 21 performs lifting detection. Let the circumferential angle of the roller sleeve 10 be ;

[0050] The laser rangefinder 21 is at the position ( ). Assuming the radius of the roller sleeve 10 in the ideal cylindrical state is , then at the position ( ), the height difference between the surface of the roller sleeve 10 and the ideal cylindrical surface is ;

[0051] Then, calculate the volume of the concave-convex shape based on the position data measured by the laser rangefinder 21. To calculate the volume of the concave-convex shape, we divide the surface of the cylindrical roller into many small volume units, with a spacing of in the height direction and a spacing of in the circumferential direction. The volume of each small volume unit is approximately ; then the total volume of the concave-convex shape can be obtained by summing the volumes of all small units. In the limit case, that is, a double integral:

[0052]

[0053] After calculating the total volume , calculate the radius of the roller sleeve 10 after extrusion. During the extrusion process, the volume of the uneven shape is set to be unchanged. Then, set the radius of the cylinder after extrusion to be , and the height to be . According to the law of conservation of volume, we have , is the volume of the ideal roller sleeve 10, is the volume of the cylinder after extrusion;

[0054] Since it is determined according to the measurement of the laser rangefinder 21 and the lifting of the detection mechanism 8, and the height of the cylinder after extrusion is the same as the height of the original roller sleeve 10, the radius of the cylinder after extrusion can be solved:

[0055]

[0056] Thus, when the detection mechanism 8, the rotating mechanism 6, and the laser rangefinder 21 cooperate to detect the radius after extrusion, as each shaping component 7 cooperates with the rotating mechanism 6 to work. Specifically, each first hydraulic telescopic rod 703 extends, causing each first moving frame 702 to move on the corresponding first slide rail 701, so that the shaping roller 705 is at the distance of the most prominent point of the roller sleeve 10 measured by the laser rangefinder 21. Then, the second motor 704 drives the shaping roller 705 to rotate, and at the same time, the roller sleeve 10 also rotates. During the shaping process, each first hydraulic telescopic rod 703 extends at a constant speed, making the distance between the shaping roller 705 and the axis of the roller sleeve 10 smaller and smaller. Since it is considered that there will be a certain compression in the shaping of the roller sleeve 10 and the support roller body 11 due to material reasons during the shaping process, the distance between the shaping roller 705 and the axis of the roller sleeve 10 is , and finally slightly less than , It is the compression distance of the shaped material. During the shaping process, the laser rangefinder 21 also moves up and down for multi-point measurement. When the radius approaches 0 after re-squeezing the uneven shape after shaping, it indicates that the outer surface of the roll sleeve 10 has a high flatness. And the laser rangefinder 21 records the radius of the roll sleeve 10 at this time, so as to provide data support for the grinding mechanism 9 according to the product size requirements and determine the grinding thickness.

[0057] After the shaping of the roll sleeve 10 sleeved on the support roll body 11 is completed, the air pump 13 works to inflate the detection groove 14. The pressure sensor 15 detects the air pressure change in the detection groove 14. After the air pressure reaches the set value for air pressure detection after inflation, the inflation stops and waits for a moment to observe whether there is any fluctuation in the air pressure data fed back by the pressure sensor 15. When there is no fluctuation, it can be determined that the roll sleeve 10 is in close fit with the support roll body 11, and the preliminary processing is completed. If the air pressure data detected by the pressure sensor 15 shows a decrease, that is, there is still a leakage gap, continue shaping, and during the shaping process, detect the air pressure change in real time. After the air pressure is stable, it indicates that the roll sleeve 10 and the support roll body 11 are in close fit. Thus, it can be reflected that the setting of the shaping assembly 7 can not only shape the outer surface of the roll sleeve 10 to make the outer surface of the roll sleeve 10 flatter, so that when the grinding mechanism 9 grinds, the stress on the roll sleeve 10 is more uniform, avoiding the generation of concentrated stress and thus avoiding cracks during the grinding process. At the same time, it can protect the grinding roll 905 of the grinding mechanism 9, so that the grinding roll 905 can also be evenly stressed, improving the service life of the grinding roll 905. At the same time, it can also improve the bonding degree between the roll sleeve 10 and the support roll body 11, further eliminating the fitting gap and making the connection between the roll sleeve 10 and the support roll body 11 more firm.

[0058] After the gap between the roll sleeve 10 and the support roll body 11 is eliminated and the outer surface of the roll sleeve 10 is flattened, the rotating mechanism 6, the laser rangefinder 21, the detection mechanism 8 and the grinding and pinning mechanism 9 cooperate. By extending the second hydraulic telescopic rod 903, the second moving frame 902 moves on the second slide rail 901, so that the grinding roll 905 fits against the outer surface of the roll sleeve 10. The fourth motor 904 operates to make the grinding roll 905 grind the roll sleeve 10. The rotating mechanism 6 drives the support roll body 11 to rotate, causing the roll sleeve 10 to rotate accordingly, so that the grinding surface can be automatically adjusted. During grinding, the laser rangefinder 21 judges the grinding and pinning thickness, so that after grinding, the outer surface of the roll sleeve 10 is flat and the size after the support roll body 11 sleeves the roll sleeve 10 meets the use size, thereby improving the accuracy of the size of the support roll after replication. At the same time, the laser rangefinder 21 and the detection mechanism 8 are used in cooperation to rotate the support roll body 11 driven by the rotating mechanism 6 to detect the roughness of the outer surface of the roll sleeve 10, so as to ensure that the roughness of the outer surface of the repaired support roll meets the requirements under the grinding of the grinding roll 905.

[0059] Finally, several points should be noted: First, in the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, which can be mechanical connection or electrical connection, or the communication inside two components, and can be directly connected. "Up", "down", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the described object changes, the relative position relationship may change;

[0060] Second: In the attached drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are involved. Other structures can refer to the general design. Without conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0061] Finally: The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A device for grinding and reshaping a scrap support roll of a rolling mill, comprising a base plate (1), wherein the base plate (1) is externally connected to a program control unit, wherein the program control unit comprises a software control system and a hardware drive unit, wherein the hardware drive unit is controlled by the software control system to operate, and wherein the device comprises: A plurality of pillars (2) are installed on the bottom plate (1), the top ends of the plurality of pillars (2) support two cross rails (3), one end of the two cross rails (3) is connected to a fixed plate (4), a lifting mechanism (5) is slidably installed on the two cross rails (3), a rotating mechanism (6) is installed at the bottom end of the lifting mechanism (5), and one side of the lifting mechanism (5) is connected to a push-pull hydraulic cylinder (20) installed on the fixed plate (4); The bottom plate (1) is provided with a detection groove (14), a shaft seat (16) is installed in the middle of the detection groove (14), a shaft groove (17) is installed in the shaft seat (16), a pressure sensor (15) is installed at the bottom end of the detection groove (14), an air inlet hole (19) is provided on one side of the detection groove (14), the air inlet hole (19) is connected to an air pump (13) installed on the bottom plate (1), and a shaft seal (18) is installed at the top edge of the detection groove (14); The shaft groove (17) supports a support roller body (11), both ends of the support roller body (11) are provided with shaft necks (12) plugged into the shaft groove (17), a roller sleeve (10) crimped onto a shaft seal (18) is sleeved onto the support roller body (11), a rubber sealing pad is provided on the top surface of the shaft seal (18), and the shaft neck (12) at the top is connected to the bottom end of the rotating mechanism (6); A plurality of shaping components (7) are equidistantly mounted on the outside of the detection groove (14) in a circumferential manner, wherein a detection mechanism (8) is disposed on one side of one shaping component (7), and a grinding mechanism (9) is disposed on one side of another shaping component (7), and a laser rangefinder (21) is mounted on the detection mechanism (8).

2. The device for grinding and reshaping the scrap support roll of a rolling mill according to claim 1 is characterized in that: The pin grinding mechanism (9) comprises a second slide rail (901), a second movable frame (902), a second hydraulic telescopic rod (903), a fourth motor (904) and a grinding roller (905); the second slide rail (901) is mounted on a base plate (1); the second movable frame (902) is slidably mounted on the second slide rail (901); the second movable frame (902) is connected to a second hydraulic telescopic rod (903) mounted on the base plate (1); the second movable frame (902) is mounted on a fourth motor (904); and the output end of the fourth motor (904) is connected to a grinding roller (905).

3. The device for grinding and reshaping the scrap support roll of a rolling mill according to claim 2 is characterized in that: The lifting mechanism (5) comprises a slide seat (501), a hydraulic lifting cylinder (502) and a base frame (503); the slide seat (501) is slidably connected to two cross rails (3); one side of the slide seat (501) is connected to the telescopic end of the push-pull hydraulic cylinder (20); the hydraulic lifting cylinder (502) is installed on the slide seat (501); and the base frame (503) is installed on the output end of the hydraulic lifting cylinder (502).

4. The device for grinding and reshaping the scrap support rolls of a rolling mill according to claim 3 is characterized in that: The rotating mechanism (6) comprises a first motor (601), a rotating rod (602) and a rotating sleeve (603); the first motor (601) is mounted on a base frame (503); a rotating rod (602) is mounted on a telescopic end of the first motor (601); a rotating sleeve (603) is mounted on a bottom end of the rotating rod (602); and the rotating sleeve (603) is sleeved on a shaft neck (12) at the top.

5. The device for grinding and reshaping the scrap support roll of a rolling mill according to claim 4 is characterized in that: The shaping assembly (7) comprises a first slide rail (701), a first movable frame (702), a first hydraulic telescopic rod (703), a second motor (704) and a shaping roller (705); the first slide rail (701) is mounted on a base plate (1); the first slide rail (701) is slidably connected to the first movable frame (702); one side of the first movable frame (702) is connected to a first hydraulic telescopic rod (703) mounted on the base plate (1); the first movable frame (702) is mounted with a second motor (704); and the shaping roller (705) is mounted on the telescopic end of the second motor (704).

6. The device for grinding and reshaping the scrap support roll of a rolling mill according to claim 5 is characterized in that: The detection mechanism (8) comprises a fixed frame (801), a third motor (802), a screw (803), a guide rod (804) and a lifting slider (805); the fixed frame (801) is mounted on the bottom plate (1); the third motor (802) is mounted on the fixed frame (801); the output end of the third motor (802) is connected to the screw (803); a guide rod (804) is arranged parallel to one side of the screw (803); the lifting slider (805) is mounted on the screw (803); the lifting slider (805) is slidably connected to the guide rod (804); the laser rangefinder (21) is mounted on the lifting slider (805); and the detection direction of the laser rangefinder (21) is perpendicular to the axis of the support roller body (11).

7. The device for grinding and reshaping the scrap support roll of a rolling mill according to claim 6 is characterized in that: The two transverse rails (3) are arranged in parallel, and an inlet and outlet are arranged at one end of the two transverse rails (3).

8. The device for grinding and reshaping the scrap support rolls of a rolling mill according to claim 7, characterized in that: A CCD is mounted on the base frame (503), and the CCD is arranged in cooperation with the rotating mechanism (6).

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