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CN-121973036-A - Automatic polishing and polishing system and process for submerged nozzle

CN121973036ACN 121973036 ACN121973036 ACN 121973036ACN-121973036-A

Abstract

The invention provides an automatic grinding and polishing system of a submerged nozzle and a process thereof, and relates to the technical field of metallurgical continuous casting part processing, comprising a bottom plate, a positioning plate and a polishing plate, wherein the upper end of the bottom plate is provided with a group of stabilizing blocks; the multi-axis manipulator is firmly arranged at the upper end of the bottom plate, the positioning shell is arranged at the upper end of the multi-axis manipulator, and the locking rod is movably arranged at the bottom of the positioning shell. The multi-shaft mechanical arm drives the polishing mechanism to move according to a preset path, the angle of the water gap is adjusted by matching with the first electric motor, automatic polishing of the inner hole and the outer cambered surface is achieved, the polishing head is rapidly locked and unlocked through the locking frame and the supporting spring, feeding and discharging are convenient to replace with the polishing head, the overall operation efficiency is improved greatly compared with that of manual intervention polishing of the traditional water gap, and the problem of manual intervention polishing of the traditional water gap is solved.

Inventors

  • DONG JIANWEI
  • YU KAI
  • TIAN HAONAN
  • ZHAN JUNFENG
  • XU YINYOU

Assignees

  • 浙江龙成耐火材料有限公司

Dates

Publication Date
20260505
Application Date
20260302

Claims (9)

  1. 1. The automatic grinding and polishing system for the submerged nozzle is characterized by comprising a bottom plate (100), wherein a group of stable blocks are arranged at the upper end of the bottom plate (100); the vertical plate (200) is arranged at the upper end of the bottom plate (100), and the bottom of the vertical plate (200) extends to the inner side of the stabilizing block of the bottom plate (100); The positioning plate (300) is hinged to the upper end of the vertical plate (200); the multi-axis manipulator (400) is firmly arranged at the upper end of the bottom plate (100); A positioning housing (500) mounted on the upper end of the multi-axis manipulator (400); The locking rod (600) is movably arranged at the bottom of the positioning shell (500), and the bottom of the positioning shell (500) is also provided with a collecting shell (700); The polishing mechanism (800) is arranged at the upper end of the positioning shell (500); The clamping assembly (900) is arranged on the vertical plate (200), and a water gap belt workpiece (1000) is arranged on one side of the clamping assembly (900).
  2. 2. The automatic sanding and polishing system of a submerged entry nozzle of claim 1, characterized in that the riser (200) comprises: the electric motor comprises a first electric motor (210), wherein the first electric motor (210) is arranged on one side of a vertical plate (200), a group of bolt mounting holes are formed in one side of the vertical plate (200) and in corners of the first electric motor (210), a hinge shaft is arranged at the upper end of the vertical plate (200) and the bottom of a positioning plate (300), the hinge shaft is firmly connected with the positioning plate (300), the hinge shaft is movably connected with the vertical plate (200), and the hinge shaft penetrates through the inside of the vertical plate (200) and is connected with a driving shaft of the first electric motor (210).
  3. 3. The automatic sanding and polishing system of a submerged entry nozzle of claim 1, characterized in that the positioning plate (300) comprises: The extrusion rods (310) are arranged on one side of the positioning plate (300), the number of the extrusion rods (310) is two, and the extrusion rods (310) are of triangular structures.
  4. 4. The automatic grinding and polishing system for a submerged nozzle according to claim 1, wherein the multi-axis robot (400) comprises: The multi-axis mechanical arm comprises a mounting plate (410), wherein the mounting plate (410) is arranged at the top of the multi-axis mechanical arm (400), the mounting plate (410) is of a rectangular structure, two mounting grooves are formed in the bottom of a positioning shell (500), the mounting grooves are of an L-shaped structure, the side edges of the mounting plate (410) extend to the inside of the mounting grooves, a group of sliding holes are formed in the bottom of the positioning shell (500), and the sliding holes are communicated with the mounting grooves.
  5. 5. The automatic polishing and burnishing system for a submerged nozzle according to claim 1, wherein the locking rod (600) is inserted into the sliding hole of the positioning housing (500), a supporting spring is installed at the outer side of the locking rod (600), a blocking ring is arranged at one side of the locking rod (600), the supporting spring is arranged at one side of the blocking ring, a locking groove corresponding to the locking rod (600) is formed at one side of the mounting plate (410), and one side of the locking rod (600) extends into the locking groove.
  6. 6. The automatic polishing and burnishing system for the submerged nozzle according to claim 1, wherein two T-shaped grooves are formed in the bottom of the positioning shell (500), two T-shaped blocks are arranged at the upper end of the collecting shell (700) and extend to the inside of the T-shaped grooves, a feeding hole communicated with the collecting shell (700) is formed in one side of the positioning shell (500), and a drainage tube is arranged at the bottom of the collecting shell (700).
  7. 7. The automatic grinding and polishing system for a submerged entry nozzle according to claim 1, wherein the grinding mechanism (800) comprises: the pushing cylinders (810), the pushing cylinders (810) are two in number, and the pushing cylinders (810) are arranged at the side positions of the pushing cylinders (810); the push rod (820) is arranged in the middle of the pushing cylinder (810), and a stable groove is formed in the upper end of the push rod (820); a second electric motor (830), the second electric motor (830) being installed in a stabilizing groove of an upper end of the push rod (820); A rotation shaft (840), the rotation shaft (840) being mounted on an upper end of a drive shaft of the second electric motor (830); The locking frame (850) is arranged at the upper end of the locking frame (850), and a pressing block is arranged at the bottom of the locking frame (850), wherein the locking frame (850) is arranged at the upper end of the rotating shaft (840), a group of sliding holes are formed in the upper end of the rotating shaft (840), and the locking block and the pressing block of the locking frame (850) respectively penetrate through the inside of the sliding holes; The polishing head (860) is arranged at the upper end of the rotating shaft (840), a group of locking grooves are formed in the polishing head (860), locking blocks at the upper end of the locking frames (850) extend to the inner parts of the locking grooves, and supporting springs are arranged between the two locking frames (850).
  8. 8. The automatic grinding and polishing system for a submerged entry nozzle according to claim 1, wherein the clamping assembly (900) comprises: A third electric motor (910), the third electric motor (910) being mounted at a side position of the positioning plate (300); The positioning plate (300) is provided with a rotating hole at the rear side, a polished rod in the middle of the bidirectional threaded rod (920) penetrates through the inside of the rotating hole, and one side of the bidirectional threaded rod (920) is connected with a driving shaft of a third electric motor (910); The device comprises an outer clamping plate (930), two bidirectional threaded rods (920) and a clamping groove, wherein the outer clamping plate (930) is arranged in the middle of a positioning plate (300), a group of sliding holes are formed in the middle of the positioning plate (300), one side of the outer clamping plate (930) penetrates through the inside of the sliding holes, one side of the outer clamping plate (930) is respectively provided with a threaded hole, the spiral directions of the threaded holes of two adjacent outer clamping plates (930) are opposite, the bidirectional threaded rods (920) sequentially penetrate through the inside of the threaded holes, and the inner side of the outer clamping plate (930) is provided with the clamping groove; A fourth electric motor (940), the fourth electric motor (940) being mounted at an upper end of the positioning plate (300); The upper end of the positioning plate (300) is provided with a rotating hole, and the unidirectional threaded rod (950) passes through the inside of the rotating hole and is connected with the driving shaft of the fourth electric motor (940); The movable frame (960), the movable frame (960) is installed at the upper end of the locating plate (300), two sliding grooves are formed in the upper end of the locating plate (300), the sliding grooves are of U-shaped structures, one side of the movable frame (960) extends to the inside of the sliding grooves, a threaded hole is formed in the middle of the sliding grooves, the threaded hole corresponds to the unidirectional threaded rod (950), and the unidirectional threaded rod (950) penetrates through the inside of the threaded hole; The support rod (970), the support rod (970) is installed at the bottom position of the movable frame (960), a group of sliding holes corresponding to the support rod (970) are formed at the bottom of the movable frame (960), and the support rod (970) is inserted into the sliding holes; And the inner clamping plate (980), wherein the inner clamping plate (980) is arranged at one side of the supporting rod (970).
  9. 9. A process for automatic sanding and polishing of a submerged entry nozzle according to any one of claims 1 to 8 having the steps of: (1) When the automatic polishing and burnishing system is used, firstly, an adaptive polishing head (860) is installed through a locking frame (850), and a supporting spring pushes a locking block to be embedded into a locking groove to complete locking of the polishing head (860); (2) Placing the water gap belt machined part (1000) between the outer clamping plates (930), starting a third electric motor (910), enabling a bidirectional threaded rod (920) to rotate so as to drive the outer clamping plates (930) to move relatively, enabling clamping grooves of the outer clamping plates (930) to be attached to the outer parts of the water gap to clamp the water gap, enabling the inner wall of the water gap belt machined part (1000) to be polished at the moment, starting a multi-shaft mechanical arm (400), a second electric motor (830) and a pushing cylinder (810) according to polishing requirements, enabling a polishing head (860) to rotate at a high speed by the second electric motor (830), enabling the pushing cylinder (810) to adjust the height of the polishing head (860), enabling a polishing mechanism (800) to move according to a preset path, polishing and enabling dust generated by polishing to enter a collecting shell (700) through a feed hole, and enabling dust generated by polishing to be rapidly absorbed and collected by a negative pressure absorber; (3) Simultaneously, a fourth electric motor (940) is started, the unidirectional threaded rod (950) drives the moving frame (960) to descend, the inner clamping plate (980) stretches into the water gap band workpiece (1000), when the inner clamping plate (980) is stressed to move in the water gap band workpiece (1000), the inner clamping plate (980) is extruded outwards by the extrusion rod (310), so that the inner clamping plate (980) clamps water gap band workpieces (1000) with different calibers quickly, a multi-axis manipulator (400) is started, a polishing head (860) polishes and polishes the outer cambered surface of the water gap band workpiece (1000), and dust generated by polishing enters a collecting shell (700) through a feed hole and is adsorbed and collected quickly by a negative pressure absorber; (4) Starting a first electric motor (210) according to the feeding and discharging requirements, and adjusting the angles of the positioning plate (300) and the water gap belt machined piece (1000); (5) When the polishing head (860) needs to be replaced, the pressing block of the locking frame (850) is pressed inwards, the locking block is separated from the locking groove of the polishing head (860), the old polishing head (860) can be removed, the pressing block is loosened after replacement, the supporting spring is automatically reset and locked, after polishing is completed, the clamping assembly (900) is reversely started to loosen the water gap, the processed water gap is removed, and dust in the collecting shell (700) is cleaned.

Description

Automatic polishing and polishing system and process for submerged nozzle Technical Field The invention relates to the technical field of metallurgical continuous casting part processing, in particular to an automatic grinding and polishing system and process for a submerged nozzle. Background The submerged nozzle is a core refractory material component in metallurgical continuous casting production, the inner hole smoothness and the extrados accuracy of the submerged nozzle directly determine the flow stability of molten steel and the quality of casting blanks, surface defects are required to be repaired by polishing for recycling after the submerged nozzle is used, the existing submerged nozzle is mainly subjected to manual operation in polishing, and a plurality of technical defects exist, and the submerged nozzle is specifically as follows: In addition, a large amount of refractory dust is generated in the polishing process, an effective collecting device is not provided, the working environment is polluted, and the respiratory system health of operators is seriously endangered; The manual grinding machine has the advantages that the manual grinding head replacement is complex in operation, the water gap angle is required to be manually adjusted during feeding and discharging, the operation efficiency is low, the maintenance requirement of large-scale production is difficult to adapt, in addition, the manual grinding force and the manual grinding path are all controlled by experience, excessive grinding or incomplete grinding of the water gap is easy to be caused, water gap consumable materials are wasted, the service life of the water gap consumable materials is shortened, the production cost is increased, meanwhile, the traditional clamping structure is complex in adjustment, and the flexibility and the applicability of grinding operation are further limited. These problems severely restrict the quality and efficiency of submerged nozzle polishing, and there is a need to develop an automated, high-precision, dust-controllable and highly adaptive polishing and polishing system to solve the deficiencies of the prior art. Disclosure of Invention The invention relates to an automatic grinding and polishing system and process for an immersed nozzle, which realize stable positioning of the immersed nozzle through an inner and outer cooperative clamping assembly to avoid deformation during grinding, wherein a first electric motor drives a positioning plate to adjust the angle, a multi-shaft manipulator drives a grinding mechanism to flexibly move to adapt to the grinding requirement of a complex curved surface of the nozzle, the grinding mechanism drives a grinding head to rotate at a high speed through an electric motor to push a cylinder to adjust the grinding height to realize accurate grinding, a locking frame is matched with a supporting spring to facilitate quick replacement of the grinding head, a collecting shell is cooperated with a negative pressure absorber to efficiently collect grinding dust, and all modules cooperate to realize automatic, high-precision and low-pollution grinding and polishing of the nozzle. The invention provides an automatic grinding and polishing system of a submerged nozzle and a process thereof, which specifically comprise a bottom plate, wherein a group of stabilizing blocks are arranged at the upper end of the bottom plate, a vertical plate is arranged at the upper end of the bottom plate, the bottom of the vertical plate extends to the inner side position of the stabilizing blocks of the bottom plate, a positioning plate is hinged at the upper end of the vertical plate, a multi-axis manipulator is fixedly arranged at the upper end of the bottom plate, a positioning shell is arranged at the upper end of the multi-axis manipulator, a locking rod is movably arranged at the bottom of the positioning shell, a collecting shell is further arranged at the bottom of the positioning shell, a grinding mechanism is arranged at the upper end of the positioning shell, a clamping assembly is arranged on the vertical plate, and a water nozzle belt machined piece is arranged at one side of the clamping assembly. Further, the first electric motor is arranged on one side of the vertical plate, a group of bolt mounting holes are formed in one side of the vertical plate and in the corners of the first electric motor, a hinge shaft is arranged at the upper end of the vertical plate and the bottom of the positioning plate, the hinge shaft is firmly connected with the positioning plate, the hinge shaft is movably connected with the vertical plate, and the hinge shaft penetrates through the inside of the vertical plate and is connected with a driving shaft of the first electric motor. Further, the mounting plate is arranged at the top of the multi-axis manipulator and is of a rectangular structure, two mounting grooves are formed in the bottom of the positioning shell, the mounting grooves are