Grinding device for sink roll surface machining

Abstract

The invention relates to the technical field of grinding equipment, and discloses a sink roll surface machining and grinding device which comprises a base, three rotating cylinders are rotatably mounted in the base along the circumference at equal intervals, the two ends of each rotating cylinder extend to the outside of the base, and a connecting ring is fixedly mounted on the surface of the top of each rotating cylinder. By arranging the clamping assemblies, the rotating assembly and the adjusting assembly, after one ends of the three sink rollers are clamped and fixed through the three clamping assemblies, a servo motor drives a threaded sleeve on the surface of a reciprocating lead screw to move up and down in a reciprocating mode, and one sides of the sink rollers are ground through an arc-shaped grinding plate; the three clamped sink rollers can rotate, then the three arc-shaped grinding plates conduct comprehensive grinding machining on the surfaces of the rotating sink rollers at the same time, a plurality of workpieces can be machined at a time conveniently, and the production efficiency of machining of the sink rollers is improved.

Description

Technical Field

[0001] The invention relates to the technical field of grinding equipment, in particular to a grinding device for processing the surface of a sinking roller. Background Art

[0002] A sinking roller is a device used to transport and install long, strip-shaped, and similar structures. It is characterized by its ability to withstand heavy loads and low friction. The main structure of a sinking roller consists of bearings, shafts, and rollers, which interact to form a reliable load-bearing device. However, after prolonged use, a sinking roller can develop fatigue layers or cracks. To ensure proper function, the roller surface must be ground.

[0003] The Chinese patent document with the publication (announcement) number CN116551482A provides a composite curve grinding device and method for a roll grinder, comprising a main frame, a roll body being provided inside the main frame, a side frame being provided at one end of the roll body away from the main frame, a bottom frame being fixedly connected to one side of the surface of the main frame, an output shaft being provided at the left end of the roll body, a reducer and a first motor being provided on the outer surface of the output shaft in sequence from right to left, and a support platform being provided at the bottom end of the first motor. In the present invention, when the friction frame moves downward, it abuts against the surface of the first connecting plate, and after the dressing roller abuts against the surface of the grinding wheel body, the grinding wheel body remains in motion, and through rolling friction with the dressing roller, the grinding wheel body with surface defects can be trimmed, thereby ensuring the trimming effect, and enabling the grinding wheel body to intermittently trim the surface of the grinding wheel body while the grinding work is in progress, thereby ensuring the service life of the grinding wheel body; The existing roller surface grinding device usually grinds the roller surface of only one sunken roller before grinding the next workpiece. Such grinding efficiency is low, especially when the workpiece is a basic part with a small volume and a large number. In addition, in the prior art, the roller is fixed horizontally on the roller grinder for grinding. The advantage of this method is stable fixation, but because it is clamped at both ends, there are problems such as complicated replacement operation and low efficiency. Therefore, the present invention designs a roller surface grinding device for sunken rollers to solve the problems existing in the prior art. Summary of the Invention

[0004] The object of the present invention is to provide a device for processing and grinding the surface of a sunken roller, so as to solve the problems raised in the above background technology.

[0005] Material toggling mechanism, its both sides respectively have a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion. A support plate is symmetrically fixedly installed on the top of the base, a mounting plate is fixedly installed between the tops of the two support plates, and an electric cylinder is symmetrically fixedly installed on the top of the mounting plate, the output end of the electric cylinder extends to the bottom of the mounting plate, a lifting plate is fixedly installed between the output ends of the two electric cylinders, and a pressing sleeve is installed inside the lifting plate to rotate equidistantly along the circumference, the three pressing sleeves correspond to the three rotating cylinders one by one, a through slot is opened in the middle of the lifting plate, the top of the reciprocating screw rod is rotatably mounted on the top wall of the mounting plate through the through slot, and the top of the second guide rod is fixedly mounted on the top wall of the mounting plate through the through slot.

[0006] Preferably, the clamping assembly includes: a first fixed block, two of which are symmetrically fixed on one side of the top of the connecting ring, a screw rod is rotatably installed between the two first fixed blocks, and one end of the screw rod extends to the outside of the first fixed block, an arc-shaped clamping plate is symmetrically threadedly installed on the surface of the screw rod, a first guide rod is slidably installed between the other ends of the two arc-shaped clamping plates, and a second fixed block is fixedly installed at both ends of the first guide rod, and the bottom of the second fixed block is fixedly installed on the surface of the connecting ring.

[0007] Preferably, both left and right ends of the screw rod are provided with threads, and the threads at the left and right ends are provided in opposite directions.

[0008] Preferably, the rotating assembly includes: a servo motor and a gear ring, the servo motor is fixedly installed in the middle position of the bottom of the base, the output end of the servo motor is fixedly installed on the bottom of the reciprocating screw, and a gear is fixedly installed on the surface of the output end of the servo motor. There are three gear rings, and the three gear rings are respectively fixedly installed on the surfaces of the lower ends of adjacent rotating cylinders, and one side of the gear ring is engaged with one side of the gear.

[0009] Preferably, the adjusting assembly includes: a movable sleeve, an adjusting nut, a fixing ring and a return spring, the movable sleeve is movably sleeved on the surface of the upper end of the threaded sleeve, the adjusting nut is threadedly installed on the surface of the upper end of the threaded sleeve, the bottom of the adjusting nut is placed on the surface of the top of the movable sleeve, the side wall of the movable sleeve is hinged with three first movable rods equidistantly along the circumference, and one end of the first movable rod is hingedly installed with an arc-shaped grinding plate, the three arc-shaped grinding plates correspond one to one with the three rotating cylinders, and the lower end of the arc-shaped grinding plate close to the threaded sleeve is symmetrically hinged with a second movable rod, the fixing ring is provided with two, and the two fixing rings are symmetrically fixed on the surface of the lower end of the threaded sleeve, one end of the second movable rod is hingedly installed on the side wall of the adjacent fixing ring, the return spring is sleeved on the surface of the middle part of the threaded sleeve, and one end of the return spring is fixedly connected to the bottom of the movable sleeve, and the other end of the return spring is fixedly connected to the top of the adjacent fixing ring.

[0010] Preferably, six rotating rods are fixedly mounted on the side wall of the adjusting nut at equal intervals along its circumference.

[0011] Preferably, limit rings are fixedly mounted on the surfaces of the upper and lower ends of the reciprocating screw rod, and the bottom of the threaded sleeve is placed on the surface of the adjacent limit ring.

[0012] Preferably, six balls are installed at equal intervals along the circumference of the bottom extension of the connecting ring, and the bottoms of the balls are placed on the surface of the base.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention comprises a clamping assembly, a rotating assembly, and an adjusting assembly. After one end of three sinking rollers is clamped and fixed by the three clamping assemblies, a servo motor drives the threaded sleeve on the surface of the reciprocating screw to move up and down and grind one side of the sinking roller via the arc-shaped grinding plate. The rotating assembly enables the three clamped sinking rollers to rotate, and the three arc-shaped grinding plates simultaneously perform comprehensive grinding on the surfaces of the rotating sinking rollers, thereby facilitating the processing of multiple workpieces at a time and improving the production efficiency of sinking roller processing. 2. The present invention comprises a clamping assembly, an electric cylinder, a pressing sleeve and other components. This facilitates the clamping of a variety of sinking rollers of different diameters, broadens the applicability of the device, and simplifies operation. Furthermore, after the sinking roller is secured, the output end of the electric cylinder pushes the lifting plate downward, causing the pressing sleeve at the bottom of the lifting plate to press against the top of the corresponding sinking roller, thereby improving the rotational stability of the sinking roller. 3. The present invention arranges components such as a clamping assembly, a reciprocating screw and an adjusting assembly. According to the different diameters of the sinking rollers clamped by the clamping assembly, the adjusting assembly on the surface of the reciprocating screw can conveniently and simultaneously adjust the distance between the three arc-shaped grinding plates according to the diameters of the clamped sinking rollers, thereby improving the efficiency of the grinding process and facilitating use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic front cross-sectional view of the present invention; Figure 2 It is a top view of the local structure of the connecting ring and the clamping assembly of the present invention; Figure 3 It is a bottom view schematic diagram of the present invention; Figure 4 It is a schematic diagram of the main structure of the threaded sleeve, guide sleeve and adjustment assembly of the present invention; Figure 5 It is a front view schematic diagram of the present invention.

[0015] In the figure: 1. Base; 2. Rotating cylinder; 3. Connecting ring; 4. Clamping assembly; 401. First fixed block; 402. Screw; 403. Arc-shaped clamping plate; 404. First guide rod; 405. Second fixed block; 5. Reciprocating screw; 501. Limiting ring; 6. Rotating assembly; 601. Servo motor; 602. Gear; 603. Gear ring; 7. Threaded sleeve; 701. Connecting block; 702. Guide sleeve; 8. Second guide rod; 9. Adjusting assembly; 901. Movable sleeve; 902. Adjusting nut; 903. First movable rod; 904. Arc-shaped grinding plate; 905. Second movable rod; 906. Fixed ring; 907. Return spring; 10. Support plate; 11. Mounting plate; 12. Electric cylinder; 13. Lifting plate; 1301. Through groove; 14. Pressing sleeve. DETAILED DESCRIPTION

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0017] See also Figure 1-5The present invention provides an embodiment of a device for processing and grinding the surface of a sinking roller, comprising: a base 1, three rotating cylinders 2 are installed on the inside of the base 1 for rotating equidistantly along the circumference, and the two ends of the rotating cylinder 2 extend to the outside of the base 1, a connecting ring 3 is fixedly installed on the surface of the top of the rotating cylinder 2, and the surface of the connecting ring 3 is provided with a clamping component 4 for fixing one end of the sinking roller. Through the setting of the clamping component 4, it is convenient to clamp a variety of sinking rollers of different diameters, thereby improving the scope of application of the device and simplifying operation. A reciprocating screw rod 5 is installed in the middle position of the base 1 for rotating in the vertical direction, and a rotating component 6 is provided between the bottom of the reciprocating screw rod 5 and the surface of the lower end of the three rotating cylinders 2. When the servo motor 601 drives the threaded sleeve 7 on the surface of the reciprocating screw rod 5 to move back and forth up and down and grinds one side of the sinking roller through the arc-shaped grinding plate 904, the rotating screw rod 5 is rotated to rotate. The setting of the dynamic component 6 can make the three clamped sinking rollers rotate, and then the three arc-shaped grinding plates 904 simultaneously perform comprehensive grinding on the surface of the rotating sinking roller, thereby improving the production efficiency of the sinking roller processing. The surface of the middle part of the reciprocating screw 5 is threadedly installed with a threaded sleeve 7, and the upper and lower ends of one side of the threaded sleeve 7 are fixedly installed with connecting blocks 701, and a guide sleeve 702 is fixedly installed between the two connecting blocks 701. The inside of the guide sleeve 702 is slidably installed with a second guide rod 8, and the bottom of the second guide rod 8 is fixedly connected to the surface of the top of the base 1. The surface of the threaded sleeve 7 is provided with an adjustment component 9 for grinding the surface of sinking rollers of various diameters; through the setting of the adjustment component 9, the distance between the three arc-shaped grinding plates 904 can be conveniently adjusted according to the diameter of the processed sinking roller, thereby improving the efficiency of the grinding process and facilitating use; The top of the base 1 is symmetrically fixed with a support plate 10, a mounting plate 11 is fixedly installed between the tops of the two support plates 10, and an electric cylinder 12 is symmetrically fixedly installed on the top of the mounting plate 11. The two electric cylinders 12 are synchronized and extended by parameter setting. After the fixing of the sinking roller is completed, the electric cylinder 12 is started so that the output end of the electric cylinder 12 pushes the lifting plate 13 down, so that the pressure sleeve 14 at the bottom of the lifting plate 13 is pressed on the top of the corresponding sinking roller to improve the stability of the rotation of the sinking roller. The output end of the electric cylinder 12 extends to the bottom of the mounting plate 11, and the output ends of the two electric cylinders 12 are A lifting plate 13 is fixedly installed between them, and a pressing sleeve 14 is installed inside the lifting plate 13 to rotate equidistantly along the circumference. The three pressing sleeves 14 correspond to the three rotating cylinders 2 one by one. The surfaces of the pressing sleeve 14 and the rotating cylinder 2 are rotatably installed with the corresponding interior of the mounting plate 11 and the interior of the base 1 through bearings, thereby improving the stability of the self-rotation of the pressing sleeve 14 and the rotating cylinder 2. A through groove 1301 is provided in the middle of the lifting plate 13, and the top of the reciprocating screw rod 5 is rotatably installed on the top wall of the mounting plate 11 through the through groove 1301, and the top of the second guide rod 8 is fixedly installed on the top wall of the mounting plate 11 through the through groove 1301.

[0018] See also Figure 1-2In an embodiment of the present invention: the clamping assembly 4 includes: a first fixed block 401, two first fixed blocks 401 are provided, the two first fixed blocks 401 are symmetrically fixedly installed on one side of the top of the connecting ring 3, a screw rod 402 is rotatably installed between the two first fixed blocks 401, and one end of the screw rod 402 extends to the outside of the first fixed block 401, and a rotating wheel is fixedly installed at one end of the screw rod 402 to facilitate the rotation of the screw rod 402, and an arc-shaped splint 403 is symmetrically threaded on the surface of the screw rod 402, and a first guide rod 404 is slidably installed between the other ends of the two arc-shaped splints 403, and a second fixed block 405 is fixedly installed at both ends of the first guide rod 404, and the bottom of the second fixed block 405 is fixedly installed on the surface of the connecting ring 3. Before grinding the surface of the sinking roller, the sinking roller is first fixed, and one end of the sinking roller is inserted into the inside of the rotating cylinder 2. By rotating the screw rod 402, the arc-shaped clamping plate 403 symmetrical on the surface of the screw rod 402 is moved relatively, and one end of the sinking roller inserted into the rotating cylinder 2 is clamped and fixed. In this way, it is convenient to clamp sinking rollers of various diameters, thereby improving the applicability of the device.

[0019] See also Figure 2 In this embodiment of the present invention, screw rod 402 is provided with threads on both its left and right ends, with the threads running in opposite directions. This allows the two curved clamping plates 403 to move in opposite directions or relative to each other when screw rod 402 is rotated, thereby clamping and securing one end of a plurality of submerged rollers of varying diameters.

[0020] See also Figure 1 and Figure 3 In an embodiment of the present invention, the rotating assembly 6 includes a servo motor 601 and a gear ring 603. The servo motor 601 is fixedly mounted at the middle position of the bottom of the base 1. The output end of the servo motor 601 is fixedly mounted to the bottom of the reciprocating screw 5. A gear 602 is fixedly mounted on the surface of the output end of the servo motor 601. Three gear rings 603 are provided. The three gear rings 603 are respectively fixedly mounted on the surfaces of the lower ends of adjacent rotating cylinders 2. One side of the gear ring 603 is engaged with one side of the gear 602. After the sinking roller is fixed, the servo motor 601 is started, so that the output end of the servo motor 601 drives the reciprocating screw 5 to rotate. At this time, the threaded sleeve 7 on the surface of the reciprocating screw 5 moves up and down in the vertical direction under the action of the second guide rod 8, and the three arc-shaped grinding plates 904 on the surface of the threaded sleeve 7 are pressed against the corresponding sinking roller surface at the same time. When the output end of the servo motor 601 drives the gear 602 to rotate, the surface of the gear 602 is engaged and rotated with the gear ring 603 on the lower end surface of the three rotating cylinders 2 at the same time, so that the three rotating cylinders 2 drive the clamped sinking rollers to rotate, realizing the synchronous processing of the three sinking rollers, thereby improving the production efficiency of the sinking roller processing.

[0021] See also Figure 1 、 Figure 4 and Figure 5 In the embodiment of the present invention, the adjusting assembly 9 includes: a movable sleeve 901, an adjusting nut 902, a fixing ring 906 and a reset spring 907. The movable sleeve 901 is movably mounted on the surface of the upper end of the threaded sleeve 7. The adjusting nut 902 is threadedly mounted on the surface of the upper end of the threaded sleeve 7. The bottom of the adjusting nut 902 is mounted on the surface of the top of the movable sleeve 901. The side wall of the movable sleeve 901 is hinged with three first movable rods 903 at equal distances along the circumference, and one end of the first movable rod 903 is hingedly mounted with an arc-shaped grinding plate 904. The three arc-shaped grinding plates 904 and the three arc-shaped grinding plates 904 are connected to each other. The rotating cylinders 2 correspond one to one, and the lower end of the arc-shaped grinding plate 904 close to the threaded sleeve 7 is symmetrically hingedly installed with a second movable rod 905. There are two fixing rings 906, and the two fixing rings 906 are symmetrically fixedly installed on the surface of the lower end of the threaded sleeve 7. One end of the second movable rod 905 is hingedly installed on the side wall of the adjacent fixing ring 906. The reset spring 907 is sleeved on the surface of the middle part of the threaded sleeve 7, and one end of the reset spring 907 is fixedly connected to the bottom of the movable sleeve 901, and the other end of the reset spring 907 is fixedly connected to the top of the adjacent fixing ring 906. When it is necessary to adjust the position of the arc grinding plate 904 according to the diameter of the clamped sinking roller, the adjusting nut 902 is rotated downward. At this time, the bottom of the adjusting nut 902 squeezes and pushes the movable sleeve 901 downward, so that one end of the three first movable rods 903 hinged at equal distances along the circumference of the side wall of the movable sleeve 901 pushes the corresponding arc grinding plate 904 to the side of the corresponding sinking roller. After the arc grinding plate 904 is tightly attached to the surface of the corresponding sinking roller, the adjusting nut 902 is stopped and the position adjustment of the three arc grinding plates 904 is completed. In this way, the surface processing of sinking rollers of various diameters can be achieved, and since the angle between the first movable rod 903 and the corresponding second movable rod 905 is greater than 90 degrees, when the arc grinding plate 904 is attached to the surface of the sinking roller, the top of the movable sleeve 901 is pressed against the bottom surface of the adjusting nut 902, and is locked by the surface thread connection of the adjusting nut 902 and the threaded sleeve 7, which can effectively limit the movement of the adjusting nut 902.

[0022] See also Figure 4 In an embodiment of the present invention, six rotating rods are fixedly installed on the side wall of the adjusting nut 902 at equal intervals along the circumference. The rotating arrangement of the side wall of the adjusting nut 902 facilitates the rotation of the adjusting nut 902.

[0023] See also Figure 1In this embodiment of the present invention, limit rings 501 are fixedly mounted on the upper and lower surfaces of the reciprocating screw 5, and the bottom of the threaded sleeve 7 rests on the surface of an adjacent limit ring 501. As the threaded sleeve 7 moves up and down on the surface of the reciprocating screw 5, the limit rings 501 restrict the threaded sleeve 7 from further downward or upward movement after it has reached its proper position, ensuring safe and reliable operation of the threaded sleeve 7.

[0024] See also Figure 1 In this embodiment of the present invention, six balls are mounted equidistantly around the bottom of the connecting ring 3, with the bottoms of the balls resting on the surface of the base 1. The arrangement of the balls reduces the contact area between the bottom of the connecting ring 3 and the base 1, lowering friction and improving the rotational stability of the connecting ring 3.

[0025] Working principle: Turn on the power supply, and before grinding the surface of the sinking roller, first fix the sinking roller, insert one end of the sinking roller into the inside of the rotating cylinder 2, and rotate the screw 402 to make the arc-shaped clamping plates 403 symmetrical on the surface of the screw 402 move relatively, and clamp and fix one end of the sinking roller inserted into the rotating cylinder 2, and then move it downward by rotating the adjusting nut 902. At this time, the bottom of the adjusting nut 902 squeezes and pushes the movable sleeve 901 downward, so that one end of the three first movable rods 903 hinged at equal distances along the circumference of the side wall of the movable sleeve 901 pushes the corresponding arc-shaped grinding plate 904 to move toward the side of the corresponding sinking roller, and the arc-shaped grinding plate 904 is tightly attached to the corresponding sinking roller. After the roller surface is smoothed, the adjusting nut 902 is stopped, and the position of the three arc-shaped grinding plates 904 is adjusted. Finally, the servo motor 601 is started, and the output end of the servo motor 601 drives the reciprocating screw 5 to rotate. At this time, the threaded sleeve 7 on the surface of the reciprocating screw 5 moves up and down in the vertical direction under the action of the second guide rod 8, and the three arc-shaped grinding plates 904 on the surface of the threaded sleeve 7 are simultaneously pressed against the corresponding sinking roller surface. As the output end of the servo motor 601 drives the gear 602 to rotate, the surface of the gear 602 simultaneously engages and rotates with the gear ring 603 on the lower end surface of the three rotating cylinders 2, causing the three rotating cylinders 2 to drive the clamped sinking rollers to rotate, thereby performing synchronous processing of the three sinking rollers. The content not described in detail in this specification belongs to the existing technology known to professional and technical personnel in this field.

[0026] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for grinding the surface of a sunken roller, comprising: The base (1) is characterized in that: three rotating cylinders (2) are installed in the interior of the base (1) in a circumferentially equidistant manner, and both ends of the rotating cylinders (2) extend to the outside of the base (1); a connecting ring (3) is fixedly installed on the surface of the top of the rotating cylinder (2), and a clamping assembly (4) for fixing one end of the sinking roller is provided on the surface of the connecting ring (3); a reciprocating screw (5) is installed in the middle position of the base (1) in a vertical direction, and a rotating screw is provided between the bottom of the reciprocating screw (5) and the surface of the lower end of the three rotating cylinders (2). A movable component (6), a threaded sleeve (7) is threadedly installed on the surface of the middle part of the reciprocating screw (5), and a connecting block (701) is fixedly installed on the upper and lower ends of one side of the threaded sleeve (7), a guide sleeve (702) is fixedly installed between the two connecting blocks (701), a second guide rod (8) is slidably installed inside the guide sleeve (702), and the bottom of the second guide rod (8) is fixedly connected to the surface of the top of the base (1), and an adjustment component (9) is provided on the surface of the threaded sleeve (7) for grinding the surface of sinking rollers of various diameters; A support plate (10) is symmetrically fixedly installed on the top of the base (1), a mounting plate (11) is fixedly installed between the tops of the two support plates (10), and an electric cylinder (12) is symmetrically fixedly installed on the top of the mounting plate (11), the output end of the electric cylinder (12) extends to the bottom of the mounting plate (11), a lifting plate (13) is fixedly installed between the output ends of the two electric cylinders (12), and a pressing sleeve (14) is equidistantly installed in the interior of the lifting plate (13) along the circumference, and the three pressing sleeves (14) correspond to the three rotating cylinders (2) one by one. A through slot (1301) is opened in the middle of the lifting plate (13), the top of the reciprocating screw rod (5) is rotatably mounted on the top wall of the mounting plate (11) through the through slot (1301), and the top of the second guide rod (8) is fixedly mounted on the top wall of the mounting plate (11) through the through slot (1301).

2. The device for grinding the surface of a submerged roller according to claim 1, characterized in that: The clamping assembly (4) comprises: a first fixed block (401), two first fixed blocks (401) are provided, the two first fixed blocks (401) are symmetrically fixedly mounted on one side of the top of the connecting ring (3), a screw rod (402) is rotatably mounted between the two first fixed blocks (401), and one end of the screw rod (402) extends to the outside of the first fixed block (401), an arc-shaped clamping plate (403) is symmetrically threadedly mounted on the surface of the screw rod (402), a first guide rod (404) is slidably mounted between the other ends of the two arc-shaped clamping plates (403), and a second fixed block (405) is fixedly mounted on both ends of the first guide rod (404), and the bottom of the second fixed block (405) is fixedly mounted on the surface of the connecting ring (3).

3. The device for grinding the surface of a submerged roller according to claim 2, characterized in that: The left and right ends of the screw rod (402) are both provided with threads, and the directions of the threads at the left and right ends are opposite.

4. The device for grinding the surface of a submerged roller according to claim 1, characterized in that: The rotating assembly (6) comprises a servo motor (601) and a gear ring (603). The servo motor (601) is fixedly mounted at the middle position of the bottom of the base (1). The output end of the servo motor (601) is fixedly mounted to the bottom of the reciprocating screw (5). A gear (602) is fixedly mounted on the surface of the output end of the servo motor (601). Three gear rings (603) are provided. The three gear rings (603) are respectively fixedly mounted on the surface of the lower end of the adjacent rotating cylinder (2). One side of the gear ring (603) is meshed with one side of the gear (602).

5. The device for grinding the surface of a submerged roller according to claim 1, characterized in that: The adjusting assembly (9) comprises: a movable sleeve (901), an adjusting nut (902), a fixing ring (906) and a return spring (907), wherein the movable sleeve (901) is movably sleeved on the surface of the upper end of the threaded sleeve (7), the adjusting nut (902) is threadedly mounted on the surface of the upper end of the threaded sleeve (7), the bottom of the adjusting nut (902) is placed on the surface of the top of the movable sleeve (901), and the side wall of the movable sleeve (901) is hinged with three first movable rods (903) at equal intervals along the circumference, and one end of the first movable rod (903) is hingedly mounted with an arc-shaped grinding plate (904), and the three arc-shaped grinding plates (904) are connected to the three rotating cylinders ( 2) One-to-one correspondence, the arc-shaped grinding plate (904) is symmetrically hingedly installed with a second movable rod (905) at the lower end of the side close to the threaded sleeve (7), two fixed rings (906) are provided, and the two fixed rings (906) are symmetrically fixedly installed on the surface of the lower end of the threaded sleeve (7), one end of the second movable rod (905) is hingedly installed on the side wall of the adjacent fixed ring (906), the reset spring (907) is sleeved on the surface of the middle part of the threaded sleeve (7), and one end of the reset spring (907) is fixedly connected to the bottom of the movable sleeve (901), and the other end of the reset spring (907) is fixedly connected to the top of the adjacent fixed ring (906).

6. The device for grinding the surface of a submerged roller according to claim 5, characterized in that: Six rotating rods are fixedly mounted at equal intervals on the side wall of the adjusting nut (902) extending around the circumference.

7. The device for grinding the surface of a submerged roller according to claim 1, characterized in that: Limiting rings (501) are fixedly mounted on the surfaces of both upper and lower ends of the reciprocating screw rod (5), and the bottom of the threaded sleeve (7) is placed on the surface adjacent to the limiting ring (501).

8. The device for grinding the surface of a submerged roller according to claim 1, characterized in that: Six balls are equidistantly mounted on the bottom extending circumference of the connecting ring (3), and the bottoms of the balls are placed on the surface of the base (1).

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