Grinding and reshaping device for waste back-up roll bushing of rolling mill

Abstract

The invention discloses a rolling mill waste back-up roll bushing grinding and reshaping device, and particularly relates to the technical field of rolling mill back-up roll repairing in the metallurgical industry. According to the device, a back-up roll body and a roll sleeve are installed on a shaft groove, a rotating mechanism and the back-up roll body are fixedly connected through a push-pull hydraulic cylinder and a lifting mechanism, and the rotating mechanism drives the roll sleeve to rotate; a laser range finder of the detection mechanism carries out multi-point detection on the outer surface of the roller sleeve, the flatness and the convex-concave shape are determined, the extrusion radius is calculated, a shaping assembly carries out shaping according to the flatness and the convex-concave shape, the laser range finder carries out real-time monitoring in the shaping process, an air pump carries out air inflation after shaping, and a pressure sensor detects the attaching condition. And finally, the grinding mechanism grinds the roller sleeve according to the data of the laser range finder until the size and the roughness meet the requirements. The problems that in the prior art, the back-up roll and the roll sleeve are not tightly attached, and grinding machining is inaccurate can be effectively solved, efficient repairing of the waste back-up roll is achieved, and the repairing quality and precision are improved.

Description

Technical Field

[0001] The invention relates to the technical field of repairing support rollers of rolling mills in the metallurgical industry, and more specifically to a device for grinding and reshaping the sleeves of waste support rollers of rolling mills. Background Art

[0002] Support rollers play an extremely important role in rolling production. In recent years, although the quality of support rollers has been getting better and better, and the hardness has been getting higher and higher, as consumable parts, support rollers are still seriously worn out after long-term use. A large number of scrap support rollers are generated every year. If the scrap support rollers are not recycled but directly discarded, it will undoubtedly cause a huge waste of resources and increase the replacement cost.

[0003] In the prior art, the sleeve-inserting method is generally used to repair the waste support roller: when the roller diameter of the waste support roller is reduced to the point where it cannot be used, or the surface heat treatment hardness is low and cannot be used, in order to reuse it, the roller sleeve is inserted on the outside of the roller core to form an inserted support roller, thereby achieving the reuse of the waste support roller.

[0004] In the actual sleeve repair process, the size of the contact area between the roller sleeve and the support roller and the adequacy of the contact directly affect the repair effect. In the prior art, the support roller and the roller sleeve are generally assembled by heat-fitting to achieve interference fit. However, since the machining accuracy of the outer cylindrical surface of the support roller and the machining accuracy of the inner surface of the roller sleeve are difficult to achieve a very ideal level, there will still be some air interlayers (small gaps) between the support roller and the roller sleeve after heat-fitting, and the two cannot fit fully, which will affect the repair effect of the support roller.

[0005] The invention patent with patent application announcement number CN202410491883.4 discloses a waste support roller sleeve repair equipment and a repair method thereof, which belongs to the technical field of rolling mill support roller repair equipment in the metallurgical industry. The technical scheme is: it includes a bottom cabinet, a moving block, a support rod, a bearing platform, a driver, a grinding mechanism and a matching roller. A moving block is provided in the bottom cabinet, and the bearing platform is fixed on the moving block by a support rod. A driver matching with the support roller and the roller sleeve is provided above the bearing platform, and a grinding mechanism matching with the support roller and the roller sleeve is provided on one side of the bearing platform, and a matching roller matching with the support roller and the roller sleeve is provided on the other side of the bearing platform. The beneficial effect of this technology is that it can make the support roller and the roller sleeve fully fit, effectively eliminate the air interlayer between the fitting surfaces, and ensure the repair effect.

[0006] However, in actual use, although the air layer between the fitting surfaces of the support roller and the roller sleeve is effectively eliminated, it is impossible to detect whether the air layer has been eliminated. Secondly, although the surface unevenness can be ground, the traditional grinding mechanism is used for grinding. In the subsequent grinding, it is impossible to perform precise grinding according to the size of the finished support roller, which makes it difficult to accurately control the flatness of the outer surface of the roller sleeve, thereby affecting the quality of the repaired product. Therefore, a grinding and replicating device for the sleeve of used support rollers 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 device for grinding and replicating the sleeves of waste support rolls of a rolling mill to solve the problems raised in the above-mentioned background technology.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a grinding and reshaping device for a waste support roll of a rolling mill, comprising a bottom plate, the bottom plate is externally connected to a program control unit, the program control unit comprises a software control system and a hardware drive unit, the hardware drive unit is controlled to work by the software control system, a plurality of pillars are installed on the bottom plate, the top ends of the plurality of pillars support two cross rails, one end of the two cross rails is connected to a fixed plate, 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 to a push-pull hydraulic cylinder installed on the fixed plate;

[0009] A detection groove is provided 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 of the detection groove, an air inlet hole is provided on one side of the detection groove, the air inlet hole is connected to an air pump installed on the bottom plate, and a shaft seal is installed on the top edge of the detection groove;

[0010] The shaft groove supports a support roller body, both ends of the support roller body are provided with shaft necks plugged into the shaft groove, a roller sleeve crimped onto the shaft seal is sleeved on the support roller body, and the shaft neck at the top is connected and matched with the bottom end of the rotating mechanism;

[0011] A plurality of shaping components are equidistantly installed on the outside of the detection groove in a circumferential manner, wherein a detection mechanism is arranged on one side of one shaping component and a grinding mechanism is arranged on one side of another shaping component, and a laser rangefinder is installed on the detection mechanism.

[0012] Preferably, the pin grinding mechanism includes a second slide rail, a second movable frame, a second hydraulic telescopic rod, a fourth motor and a grinding roller. The second slide rail is installed on the base plate. The second movable frame is slidably installed on the second slide rail. The second movable frame is connected to the second hydraulic telescopic rod installed on the base plate. The fourth motor is installed on the second movable frame, and the output end of the fourth motor is connected to the grinding roller.

[0013] Preferably, the lifting mechanism includes a slide, a hydraulic lifting cylinder and a base frame, the slide is slidably connected to two cross rails, one side of the slide is connected to the telescopic end of the push-pull hydraulic cylinder, the slide is installed with a hydraulic lifting cylinder, and the base frame is installed at the output end of the hydraulic lifting cylinder.

[0014] Preferably, the rotating mechanism comprises a first motor, a rotating rod and a rotating sleeve, the first motor is mounted on a base frame, a rotating rod is mounted on the telescopic end of the first motor, a rotating sleeve is mounted on the bottom end of the rotating rod, and the rotating sleeve is mounted on the top shaft neck.

[0015] Preferably, the shaping component includes a first slide rail, a first movable frame, a first hydraulic telescopic rod, a second motor and a shaping roller, the first slide rail is installed on a base plate, the first slide rail is slidably connected to the first movable frame, one side of the first movable frame is connected to the first hydraulic telescopic rod installed on the base plate, the first movable frame is installed with a second motor, and the shaping roller is installed on the telescopic end of the second motor.

[0016] Preferably, the detection mechanism includes a fixed frame, a third motor, a screw, a guide rod and a lifting slider, the fixed frame is installed on the base plate, the third motor is installed on the fixed frame, the output end of the third motor is connected to the screw, a guide rod is arranged parallel to one side of the screw, the lifting slider is installed on the screw, and the lifting slider is slidably connected to the guide rod, the 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 transverse rails are arranged in parallel, and an inlet and outlet are arranged at one end of the two transverse rails.

[0018] Preferably, a CCD is mounted on the base frame, and the CCD is arranged in cooperation with the rotating mechanism.

[0019] Technical effects and advantages of the present invention:

[0020] 1. Through the laser rangefinder to detect the multi-point distance of the outer surface of the roller sleeve, the flatness of the roller sleeve surface can be accurately judged, the uneven shape can be determined, and the radius after extrusion into a cylinder can be calculated, thereby providing an accurate adjustment basis for the shaping component, 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. Use an air pump and a pressure sensor to detect the fit between the roller sleeve and the support roller body to ensure that the two fit closely, eliminate air interlayers, enhance bonding, avoid poor repair results due to loose fit, and improve the overall performance and service life of the support roller after repair.

[0022] 3. During the grinding process, based on the detection of the laser rangefinder, the thickness of the wear pin can be accurately determined, and the outer surface of the roller sleeve can be accurately ground, so that the size of the support roller sleeve after the roller sleeve is connected meets the use requirements. At the same time, the surface roughness can be detected to ensure that the quality of the outer surface of the repaired support roller meets the standard and meets the use requirements.

[0023] 4. The work of the shaping component not only improves the surface quality of the roller sleeve, but also makes the stress distribution of the roller sleeve more uniform during grinding, avoids stress concentration, effectively protects the grinding roller, reduces its wear, extends the service life of the grinding roller, and reduces equipment maintenance costs. 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 of the bottom plate of the present invention for connecting with the bottom of the supporting roller 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 structural diagram of the shaping component of the present invention.

[0029] Figure 6 It is a structural schematic diagram of the grinding 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] The accompanying drawings are marked as follows: 1, bottom plate; 2, pillar; 3, cross rail; 4, fixed plate; 5, lifting mechanism; 501, slide seat; 502, hydraulic lifting cylinder; 503, bottom frame; 6, rotating mechanism; 601, first motor; 602, rotating rod; 603, rotating sleeve; 7, shaping assembly; 701, first slide rail; 702, first moving frame; 703, first hydraulic telescopic rod; 704, second motor; 705, shaping roller; 8, detection mechanism; 801, fixed frame; 802, third motor machine; 803, screw; 804, guide rod; 805, lifting slider; 9, grinding mechanism; 901, second slide rail; 902, second moving frame; 903, second hydraulic telescopic rod; 904, fourth motor; 905, grinding roller; 10, roller sleeve; 11, supporting roller body; 12, journal; 13, air pump; 14, detection slot; 15, pressure sensor; 16, shaft seat; 17, shaft slot; 18, shaft seal; 19, air inlet; 20, push-pull hydraulic cylinder; 21, laser rangefinder. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] As attached Figure 1-Figure 7 The grinding and reshaping device for the sleeve of the waste support roller of the rolling mill shown in the figure comprises a bottom plate 1, the bottom plate 1 is externally connected to a program control unit, the program control unit comprises a software control system and a hardware drive unit, and the hardware drive unit is controlled to work by the software control system, 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;

[0034] 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 19 is provided on one side of the detection groove 14, the air inlet 19 is connected to the 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;

[0035] The shaft groove 17 supports a support roller body 11, and 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 on the support roller body 11, and the shaft neck 12 at the top is connected and matched with the bottom end of the rotating mechanism 6;

[0036] A plurality of shaping components 7 are equidistantly installed on the outside of the detection groove 14 in a circumferential manner, wherein a detection mechanism 8 is provided on one side of one shaping component 7 and a grinding mechanism 9 is provided on another side of the shaping component 7. A laser rangefinder 21 is installed on the detection mechanism 8.

[0037] The pin grinding mechanism 9 includes 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 installed on the base plate 1. The second movable frame 902 is slidably installed on the second slide rail 901. The second movable frame 902 is connected to the second hydraulic telescopic rod 903 installed on the base plate 1. The fourth motor 904 is installed on the second movable frame 902. The output end of the fourth motor 904 is connected to the grinding roller 905.

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

[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 base frame 503. The rotating rod 602 is installed at the telescopic end of the first motor 601. The rotating sleeve 603 is installed at the bottom end of the rotating rod 602. The rotating sleeve 603 is mounted on the top shaft neck 12.

[0040] The shaping component 7 includes 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 installed on the base plate 1. The first slide rail 701 is slidably connected with the first movable frame 702. One side of the first movable frame 702 is connected to the first hydraulic telescopic rod 703 installed on the base plate 1. The first movable frame 702 is installed with a second motor 704. The shaping roller 705 is installed at the telescopic end of the second motor 704.

[0041] The detection mechanism 8 includes 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 installed on the base plate 1. The third motor 802 is installed 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 installed on the screw 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 transverse rails 3 are arranged in parallel, and an inlet and outlet are arranged at one end of the two transverse rails 3 .

[0043] The base frame 503 is provided with a CCD, which is arranged in cooperation with the rotating mechanism 6 .

[0044] The working principle of the present invention is as follows: the support roller body 11 and the roller sleeve 10 which are sleeved together are hoisted to the shaft groove 17 from the inlet and outlet, and the roller sleeve 10 is pressed on the shaft seal 18, the roller sleeve 10 squeezes the rubber sealing pad on the top surface of the shaft seal 18, so that the low detection groove 14 is sealed, the push-pull hydraulic cylinder 20 is operated, the lifting mechanism 5 is moved at a fixed distance, so that the rotating mechanism 6 is directly above the support roller body 11, the CCD detects the direction of the shaft neck 12, and then the rotating mechanism 6 is adjusted to make the rotating sleeve 603 cooperate with the shaft neck 12 vertically, the lifting mechanism 5 is operated, so that the rotating sleeve 603 is sleeved on the shaft neck 12, so as to complete the fixation, and then the rotating mechanism 6 is operated to rotate at a uniform speed, and at the same time, the detection mechanism 8 is operated, so that the laser rangefinder 21 performs multi-point distance detection on the outer surface of the roller sleeve 10, so as to judge the flatness of the surface of the roller sleeve 10, and the uneven shape between the maximum distance and the minimum distance is determined according to the distance of each point detected, and then the radius of the uneven shape after being squeezed into a cylinder is automatically calculated. Then, the shaping components 7 are adjusted synchronously so that the distance between the outer surface of each shaping roller 705 and the axis of the roller sleeve 10 is Then, each shaping assembly 7 and the rotating mechanism 6 are started to shape the outer surface of the roller sleeve 10. During the shaping process, the detection mechanism 8 cooperates with the laser rangefinder 21 to measure the distance between the roller sleeve 10 and the roller sleeve 10 in real time. After the measured distance is uniform, the air pump 13 is operated 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 after inflation, the inflation is stopped, and the air pressure data fed back by the pressure sensor 15 is observed for a while to see if there is any fluctuation. If there is no fluctuation, it can be determined that the roller sleeve 10 is closely fitted with the supporting roller body 11, and the preliminary processing is completed;

[0045] After the preliminary processing is completed, the overall radius is determined based on the distance to the outer surface of the roller sleeve 10 detected by the laser rangefinder 21, and then the grinding mechanism 9 is operated for grinding according to the required size. During the grinding process, the degree after grinding is determined by the detection mechanism 8 and the laser rangefinder 21, and then grinding is performed layer by layer. After grinding to the required size, the grinding is stopped, and the repair of the support roller body 11 is completed, so that a support roller with an outer surface flatness and precise size is obtained.

[0046] When the lifting mechanism 5 cooperates with the rotating mechanism 6 to work, the push-pull hydraulic cylinder 20 is operated to make the slide 501 move along the two cross rails 3, so that the bottom rotating sleeve 603 is directly above the support roller body 11, and the CCD installed on the base frame 503 detects the direction of the top shaft neck 12, so as to cooperate with the first motor 601 to drive the rotating rod 602 to rotate, so that the bottom rotating sleeve 603 rotates, so that the rotating sleeve 603 and the top shaft neck 12 cooperate up and down, and the hydraulic lifting cylinder 502 operates according to the height of the repaired support roller body 11, so that the bottom base frame 503 descends, so that the rotating sleeve 603 descends, so that the rotating sleeve 603 is adapted to be connected to the top shaft neck 12, so that it can be adjusted according to the height of the support roller body 11, so that the rotating sleeve 603 is connected to the shaft neck 12, so that the support roller body 11 can be stabilized.

[0047] When the rotating mechanism 6 cooperates with the detection mechanism 8 to work, the rotating sleeve 603 rotates at a uniform speed, so that the support roller body 11 and the roller sleeve 10 are supported by the shaft seat 16, the shaft groove 17 and the shaft seal 18 at the bottom, so that the support roller body 11 and the roller sleeve 10 rotate at a uniform speed. During the rotation process, the third motor 802 on the fixed frame 801 runs, so that the screw 803 rotates, and the lifting slider 805 is lifted and lowered under the guidance of the guide rod 804, so that the laser rangefinder 21 is lifted and lowered. The laser rangefinder 21 detects the distance between multiple points and the outer surface of the roller sleeve 10, so as to determine 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 of the uneven shape after being extruded into a cylinder ;

[0048] The radius of the uneven shape after being extruded into a cylinder in the calculation Specifically:

[0049] Set the height of the roller sleeve 10 to , with the bottom of the roller sleeve 10 as The reference plane of axis( ), during the rotation of the roller sleeve 10, the laser rangefinder 21 performs lifting detection, assuming that the circumferential angle of the roller sleeve 10 is ;

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

[0051] Then, the volume of the concave-convex shape is calculated based on the data of each point measured by the laser rangefinder 21. In order to calculate the volume of the concave-convex shape, we divide the surface of the cylindrical roller into many small volume units, which are spaced at intervals of , the interval in the circumferential direction is , the volume of each small volume unit is approximately ; then the total volume of the concave and convex shapes It can be obtained by summing up the volumes of all small units, or in the limit, by double integration:

[0052]

[0053] By calculating the total volume After that, the radius of the roller sleeve 10 after extrusion is calculated. During the extrusion process, the volume of the uneven shape is set unchanged, so the radius of the cylinder after extrusion is set to , the height is , 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 the height of the cylinder after extrusion is determined by the laser rangefinder 21 and the lifting and lowering of the detection mechanism 8 is determined, Height from original roller sleeve 10 If the same, the radius of the cylinder after extrusion can be solved :

[0055]

[0056] Thus, the detection mechanism 8, the rotating mechanism 6 and the laser rangefinder 21 cooperate to detect the radius after extrusion. , as each shaping assembly 7 cooperates with the rotating mechanism 6 to work, specifically, each first hydraulic telescopic rod 703 is extended, so that each first moving frame 702 moves on the corresponding first slide rail 701, so that the shaping roller 705 is at the most prominent point distance of the roller sleeve 10 measured by the laser rangefinder 21, and then the second motor 704 drives the shaping roller 705 to rotate, and the roller sleeve 10 also rotates. During the shaping process, each first hydraulic telescopic rod 703 is extended at a uniform speed, so that the distance between the shaping roller 705 and the axis of the roller sleeve 10 becomes smaller and smaller. Considering that the shaping process of the roller sleeve 10 and the supporting roller body 11 will be compressed to a certain extent due to material reasons, the distance between the shaping roller 705 and the axis of the roller sleeve 10 is , and finally slightly less than , In order to measure the compression distance of the material after shaping, the laser rangefinder 21 also moves up and down to perform multi-point measurement during the shaping process. When the radius of the uneven shape after re-extrusion is close to 0, it means that the outer surface of the roller sleeve 10 has a high flatness, and the laser rangefinder 21 records the radius of the roller sleeve 10 at this time, so as to provide grinding data support for the grinding mechanism 9 and determine the grinding thickness according to the product size requirements.

[0057] After the roller sleeve 10 connected to the outer surface of the support roller body 11 is shaped, the air pump 13 works to inflate the detection groove 14, and the pressure sensor 15 detects the air pressure change in the detection groove 14. After the air is inflated and reaches the set value of the air pressure detection, the inflation is stopped, and wait for a while to observe whether the air pressure data fed back by the pressure sensor 15 fluctuates. If there is no fluctuation, it can be determined that the roller sleeve 10 and the support roller body 11 are tightly fitted and the preliminary processing is completed. If the air pressure data detected by the pressure sensor 15 is reduced, that is, there is still a leakage gap, the shaping is continued, and the air pressure change is detected in real time during the shaping process. After the air pressure stabilizes, it means that the roller sleeve 10 and the support roller body 11 are in close contact. The body 11 fits tightly, which shows that the setting of the shaping component 7 can not only shape the outer surface of the roller sleeve 10, making the outer surface of the roller sleeve 10 smoother, so that when the grinding mechanism 9 is grinding, the stress on the roller sleeve 10 is more uniform, avoiding concentrated stress, thereby avoiding cracks in the grinding process, and at the same time, it can protect the grinding roller 905 of the grinding mechanism 9, so that the grinding roller 905 can also be evenly stressed, thereby increasing the service life of the grinding roller 905. At the same time, it can also improve the bonding degree between the roller sleeve 10 and the supporting roller body 11, further eliminate the fitting gap, and make the connection between the roller sleeve 10 and the supporting roller body 11 more firm.

[0058] After the gap between the roller sleeve 10 and the supporting roller body 11 is eliminated and the outer surface of the roller sleeve 10 is flattened, the rotating mechanism 6, the laser rangefinder 21, the detection mechanism 8 and the grinding mechanism 9 work in coordination, and the second hydraulic telescopic rod 903 is extended to make the second moving frame 902 move on the second slide rail 901, so that the grinding roller 905 is in contact with the outer surface of the roller sleeve 10, and the fourth motor 904 is operated to make the grinding roller 905 grind the roller sleeve 10, and the supporting roller body 11 is driven to rotate by the rotating mechanism 6 so that the roller sleeve 10 rotates accordingly, so that it can automatically The grinding surface is adjusted automatically. During grinding, the grinding thickness is determined by the laser rangefinder 21, so that after grinding, the outer surface of the roller sleeve 10 is flat, and the size of the support roller body 11 after being sleeved on the roller sleeve 10 meets the use size, thereby improving the accuracy of the size of the support roller after replication. At the same time, the laser rangefinder 21 is used in conjunction with the detection mechanism 8 to rotate the support roller body 11 driven by the rotating mechanism 6, and the roughness of the outer surface of the roller sleeve 10 is detected, thereby ensuring that the outer surface roughness of the repaired support roller meets the requirements under the grinding of the grinding roller 905.

[0059] Finally, a few points should be explained: First, in the description of the present invention, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0060] Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0061] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should 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 and matched with the shaft groove (17), a roller sleeve (10) crimped onto a shaft seal (18) is sleeved on the support roller body (11), and the shaft neck (12) at the top is connected and matched with 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 the 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 the fourth motor (904); and the output end of the fourth motor (904) is connected to the 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 roll 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 rolls of a rolling mill according to claim 5, 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 roll of a rolling mill according to claim 7 is 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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