106 results about "Planishing" patented technology

The invention relates to the field of robots, in particular to a welding seam polishing robot and a grinding method based on the welding seam polishing robot, the welding seam polishing robot comprises a measurement control system, a connection system, a left side execution unit and a right side execution unit, the left side execution unit and the right side execution unit are the same in structure, and the left side execution unit is connected with the connection system. The left execution unit and the right execution unit are distributed in a mirror symmetry manner; the welding seam grinding robot is symmetrical in structure, can grind and polish welding seams on the two sides of a welding part at the same time, integrates the mechanical technology, the measurement technology and the control technology, can achieve flexibility and automation of grinding and polishing of the welding seams, and has the advantages of being high in machining efficiency, easy to operate, convenient to use and the like.

The invention discloses an ultrasonic detection auxiliary device and an ultrasonic detection method.The ultrasonic detection auxiliary device is used for achieving indirect coupling of a probe (sensor) and a detected pipeline during ultrasonic detection of a special-shaped welded joint under the condition that weld reinforcement is not ground down, and the ultrasonic detection auxiliary device comprises a box body, a water pipe assembly and a fixing assembly. The box body is variable, so that the bottom of the box body is attached to the outer surface of the detected pipeline and is not influenced by the weld reinforcement; the water pipe assembly is arranged in the box body and used for achieving water filling, water discharging and air discharging in the box body. The fixing assembly and the detected pipeline are magnetically attracted to achieve attachment of the box body and the outer surface of the detected pipeline. According to the ultrasonic detection auxiliary device and the ultrasonic detection method provided by the invention, ultrasonic detection of a special-shaped welding joint at a B-level technical level can be realized under the condition that the weld reinforcement is not ground down, so that a large amount of manpower, materials, electric power and working hours required by grinding down the weld reinforcement are saved; and the influence of dust, noise and the like generated by polishing on the environment and human health is avoided.

The utility model relates to the technical field of seal grinding machines, in particular to a seal grinding machine which comprises a grinding table, the upper end face of the grinding table is fixedly connected with a first supporting plate, and the upper end face of the first supporting plate is slidably connected with a second supporting plate through two first limiting sliding rails; a seal needing to be ground is clamped and fixed through the seal clamping mechanism, the drive mechanism drives the grinding belt to rotate to grind the seal flatly, the seal clamping mechanism drives the seal to rotate and meanwhile cooperates with the cam swing mechanism to drive the second servo motor to swing front and back, and therefore the ground face of the seal is fully ground; and the driving mechanism is adjusted before the seal is polished, so that the pressing angle of the polishing belt is adjusted through the driving mechanism, then the inclination angle of the polishing face of the seal is adjusted, and then the situation that the polishing face of the seal is inclined after the seal is polished is avoided.

The utility model discloses an auxiliary tool for grinding the excess weld metal of a welding seam, which is used for assisting a grinding machine in grinding the welding seam of a welding base material. Comprising a movable adjusting platform and a stabilizing mechanism; the grinding machine is mounted on the movable adjusting platform; the movable adjusting platform is used for moving and adjusting the grinding machine, so that the bottom of a grinding piece of the grinding machine is parallel to the outer tangent line of the weld joint. The stabilizing mechanism is connected with the movable adjusting platform and the welding base metal, and the movable adjusting platform is kept on the surface of the welding base metal through the stabilizing mechanism so that the movable adjusting platform can move along the surface of the welding base metal. The angle of the grinding piece of the grinding machine is adjusted through the movable adjusting platform, movable grinding is achieved, the grinding machine is kept stable through the stabilizing mechanism, and therefore the grinding precision and the flat and smooth effect of the grinding face are guaranteed, welding base metal is not prone to being damaged, and follow-up nondestructive testing and anti-corrosion work of welding seams are facilitated; and operation is easy, time and labor are saved, the requirement for operating skills of operators is lowered, and the grinding efficiency is improved.

The invention provides a vehicle-mounted steel bar flexible machining device and method. The device comprises a flat truck; the raw material bin module is used for placing steel bars of different specifications; the movable saw cutting unit is used for cutting the reinforcing steel bars into preset lengths; the excess stock bin is used for collecting reinforcing steel bar waste; the lifting transfer truss is used for transferring the reinforcing steel bars in the picking truss to the movable saw cutting unit or transferring reinforcing steel bar waste cut by the movable saw cutting unit to the excess stock bin; the rib stripping and thread rolling module is used for grinding the end surfaces of the reinforcing steel bars; the bending module is used for bending the reinforcing steel bars; the power control system is used for generating a steel bar production material list and controlling the raw material bin module, the movable saw cutting unit, the lifting transfer truss, the rib stripping and thread rolling module and the bending module to complete steel bar machining according to the steel bar production material list. Nomadic production can be achieved, the steel bar transportation time is shortened, steel bar orders are received on the construction site, sporadic material orders are generated, the suit cutting scheme is optimized, the loss rate is reduced, and the steel bar production scheduling time is shortened.

The application discloses a kind of linear cutting continuous processing methods of seat body large aperture parallel group hole, belong to mechanical manufacturing technical field.This method is first with seat body A face as reference, planing, planing seat body shape and concave surface to drawing size;Again, workpiece is once clamped and aligned, and linear cutting molybdenum wire is used along preset trajectory to continuously cut, and all large aperture through hole is simultaneously processed, and 45° chamfer bevel is reserved at cutting place;Finally, intermittent welding is used to cutting seam, and workpiece temperature is strictly controlled not to exceed 80 DEG C to prevent thermal deformation, and after welding, weld is ground flat to make surface flush with concave surface.The application is characterized by linear cutting without mechanical cutting force, solves the problem that tool is easily appeared in traditional boring machine processing, through hole taper is big, parallelism is poor, effectively guarantees the size and shape accuracy of through hole.Workpiece is only single clamping, and it is free from dependence on high-skilled operators, processing efficiency and product consistency are significantly improved, and it is suitable for batch processing of large-size seat body parallel deep hole of 45 steel.

The invention discloses a method for repairing defects on a polished surface of a femoral condyle test mold. The method comprises the following steps: detecting the polished surface of the femoral condyle test mold and marking the defects; the femoral condyle test mold is fixed to a special clamp, a rotary grinding machine is adopted to be matched with a micro pneumatic rotating head, fixed-point drilling is conducted on a defect area, and micro pits are formed after digging-out; welding wires are fused through pulse laser spot welding equipment, the micro pits are filled in a layered mode, and filling bosses are formed; a high-speed electric grinding machine provided with a red nylon polishing wheel is used for conducting layered grinding on the filling boss; and a wool wheel is sequentially matched with metal polishing paste to polish the repaired area, the smoothness is gradually improved till the area is consistent with the original polished surface in glossiness and roughness, finally, the surface of the test mold is cleaned, and the residual polishing agent and impurities are removed. According to the method, the process of defect marking mechanical excavation, laser filling welding, layering, grinding and progressive polishing is adopted, localization treatment is conducted on the defects, the overall size change is avoided, and therefore accurate repairing of the defects is achieved.

The utility model discloses an automatic steel bar end cutting and grinding device which comprises a bottom plate and a first supporting block arranged in the bottom plate, and a cutting blade is installed in the first supporting block. And the first driving motor is installed on the left side of the first supporting block, a first electric telescopic rod is fixedly connected to the lower end of the first supporting block, and a first conveyor is arranged on the upper side of the bottom plate. According to the automatic steel bar end cutting and grinding device, grinding parts can be conveniently detached and taken out after use, so that the grinding effect of the device on steel bars is not easily affected by the abraded grinding parts, the grinding quality of the device is improved, the maintenance and repair efficiency of the device is improved, meanwhile, the steel bars are conveniently blocked and limited in the use process, and the service life of the device is prolonged. And the reinforcing steel bars are not prone to position deviation in the cutting or grinding process in the device, the reinforcing steel bar machining effect of the device is improved, and the better using effect is achieved.

The utility model provides a full-automatic concrete core sample processing and forming machine, which belongs to the technical field of concrete core sample processing and forming and comprises a cutting and grinding component and a core sample fixing component. The cutting assembly comprises a rack I, a cutting and grinding sliding table, a sliding table driving mechanism, a cutting and grinding shaft, a cutting and grinding blade and a cutting and grinding shaft driving mechanism; the core sample fixing assembly comprises a rack II and a core sample clamping frame; the forming machine is novel simple equipment, and compared with a method that a cutting machine and a grinding machine are used in cooperation, the forming machine is easy to manufacture, low in material consumption, small in occupied area, capable of being suitable for machining long concrete core samples such as tunnel inverted arches and the like, capable of achieving machining of a plurality of concrete core samples at a time, capable of improving the machining efficiency of the concrete core samples and high in practicability. The method is convenient and fast, saves labor and time, is high in cost performance, and has wide popularization value.

The invention discloses a method for repairing a blade damping table through combination of argon arc welding and supersonic spraying, and belongs to the technical field of aviation part repairing. The method comprises the following steps: firstly, repairing cracks of the damping table through argon arc welding, and ensuring the welding quality through nondestructive testing and stress relief heat treatment; then, the welding repair area is ground down; spraying a high-cobalt-molybdenum-chromium wear-resistant coating with specific components on the end surface by adopting a high velocity oxy-fuel spraying technology; and finally, the design size is recovered through accurate grinding. The coating prepared through high velocity oxy-fuel spraying has the outstanding advantages of high density, high hardness and high bonding strength, the crack defect is thoroughly eliminated, the size is recovered, the abrasion resistance and corrosion resistance of the blade damping table are remarkably improved, the service life of the blade is prolonged, economic benefits are remarkable, and the application prospect is wide. And the method is suitable for remanufacturing high-value precision parts such as aero-engines.

The invention discloses a numerical control machining method for a conical composite die based on datum hole positioning. The numerical control machining method comprises the following steps that S1, the bottom face of the conical composite die is ground to be flat, and a positioning pin hole is formed; s2, machining a reference hole of the flat plate; s3, clamping the mold; a positioning pin hole in the bottom face of the conical composite die is aligned with the flat plate datum hole, and a positioning pin is driven in; s4, carrying out three-coordinate detection; s5, performing numerical control machining on the conical composite die; and S6, rechecking and correcting. According to the machining method of datum hole positioning and flat plate fixing, the detection datum plane is established by grinding the bottom face of the conical composite mold to be flat, the datum hole is prefabricated in the flat plate to achieve mold positioning, the machining allowance is adjusted with the datum hole as the reference, and the problems of datum establishment and allowance control of the conical composite mold are solved.

The utility model discloses a grinding device for steel casting production, and relates to the technical field of steel casting production. Comprising two symmetrically-distributed clamping side frames, the outer side of one clamping side frame is fixedly connected with a clamping motor, a driven clamping pipe is slidably connected between the inner walls of the other clamping side frame, and the side, facing the clamping motor, of the driven clamping pipe is fixedly connected with an angle adjusting motor. The steel casting to be polished is fixed through the arrangement of the two clamping discs, meanwhile, the position of the clamped steel casting is adjusted through the arrangement of the angle adjusting motor, and therefore the steel casting to be polished is adjusted in the vertical direction; the horizontal direction of the to-be-polished steel casting is adjusted, so that the surface of the whole steel casting is polished while the steel casting does not need to be shifted manually by a worker, and the polishing device is prevented from hurting the worker.

This invention relates to the field of composite material coating technology, specifically to a high-temperature sprayed iron-based composite material coating and its preparation method, comprising the following steps: S1. Grinding the surface protrusions of the substrate, cleaning and degreasing it, ultrasonically cleaning it with anhydrous ethanol and drying it, and then sandblasting it with white corundum to obtain a pretreated substrate; S2. Preheating the pretreated substrate, and spraying modified spraying powder onto the surface of the substrate to obtain a sprayed substrate; S3. Cutting the sprayed substrate into discs, remelting the discs using a remelting device, and cooling them to room temperature to obtain a high-temperature sprayed iron-based composite material coating. This invention effectively improves the coating's bonding strength, pitting resistance, and wear resistance through the synergistic effect of modified metal powder and modified spraying powder. Together with dry premixing, wet dispersion, and spray granulation processes, they solve the problems of uneven distribution of the reinforcing phase and poor powder flowability in traditional mechanical mixing methods.

An automatic grinding device for electric power steel pole machining comprises a supporting pedestal, sliding tables and grinders, each sliding table is provided with two sets of grinders which are symmetrically distributed, and the two grinders on one sliding table are symmetrically distributed up and down in the height direction; and the two grinders on the other sliding table are symmetrically distributed left and right in the horizontal direction, and the contact area of each grinder and the steel rod piece is 1 / 4 of the circumferential length of the steel rod piece, so that the contact areas of the four grinders and the steel rod piece cover the circumference of the steel rod piece in the circumferential direction. By arranging the two sets of polishers capable of moving in the axial direction of the steel rod, after the two sets of polishers conduct polishing alternately, the periphery of the surface of the steel rod can be polished, the pressing block is arranged on the inner side of the polishing belt, in the polishing process, the polishing belt has larger pressure on the weld joint, the protruding weld joint can be polished flat, and the polishing efficiency is improved. And the weld joint and the outer wall are polished at a time.

The utility model provides a wall surface smoothing device for building construction, which comprises a movable base, and a support plate is fixedly mounted on the top side of the left end of the movable base; the moving mechanism is mounted on the surface of the supporting plate; the smoothing mechanism is mounted on the side surface of the moving mechanism, and the smoothing mechanism is used for smoothing the building wall surface; the dust removal mechanism is mounted on one side of the grinding mechanism, and the dust removal mechanism is used for dust falling treatment in the grinding process; and the filtering mechanism is mounted on the surface of the top side of the movable base, and the filtering mechanism is used for dust falling treatment in the dust removal process. Chippings generated in the grinding process are collected through the dust removal mechanism, generated dust is sucked into the filtering mechanism to be cleaned, the dust floating on the periphery is greatly sucked and then filtered, the surrounding environment quality is improved, the body health of workers is guaranteed, the overall practicability of the grinding device is guaranteed, and grinding treatment is facilitated.

The utility model relates to the technical field of welding column processing, and discloses a grinding device for welding column processing, which comprises a box body, a storage box is connected inside the box body, a grinding device is connected above the box body, a material taking mechanism is arranged on the left side of the grinding device, a support column is arranged on the left side of the material taking mechanism, the support column is fixedly connected above the box body, and the storage box is connected with the storage box. A movable plate is connected to the upper portion of the supporting column. The device has the advantages that the device can be manually and automatically ground and polished; the rotating speed of the grinding disc is continuously adjustable, the device automatically and sequentially picks up chips and carries the chips to a grinding disc station through installation of the adjusting motor and the adsorption device, the downward moving speed and distance are controlled through servo, and the pressing force is controlled through the pressing force adjusting device so that the optimal grinding effect can be achieved.

The utility model discloses a pipe orifice grinding device for welded pipe machining, and belongs to the field of welded pipe grinding, the grinding device comprises a protective cover, a rotating shaft axially moving on the protective cover, a grinding disc arranged in the protective cover and connected with the rotating shaft, and a driving part used for driving the rotating shaft to rotate; an adjusting mechanism is arranged on the protective cover and comprises a fixing ring fixedly arranged on the driving piece in a sleeving mode, a threaded sleeve fixedly connected to the fixing ring and a driving lead screw inserted into the threaded sleeve and rotationally connected with the protective cover. By arranging the adjusting mechanism, the axial feeding amount of the grinding disc can be accurately controlled, the phenomenon that the grinding disc is damaged due to the fact that the feeding amount is too large is avoided, and the grinding efficiency and the product quality are improved. During adjustment, the threaded sleeve, the driving piece on the fixing ring, the rotating shaft and the grinding disc can be driven to axially move at the pipe opening of the welded pipe only by rotating the driving lead screw, so that the feeding amount of the grinding disc is accurately controlled, and the operation is simple.

The utility model relates to the technical field of workpiece grinding, in particular to a semitrailer workpiece surface grinding device which comprises a base table and further comprises a grinding assembly, a transverse moving assembly which is arranged on the base table and used for driving the grinding assembly to transversely move is arranged at one end of the grinding assembly, and a lifting assembly is arranged on the transverse moving assembly and used for driving the grinding assembly to vertically move. The grinding assembly comprises a shell with a hole formed in the bottom, two sets of partition plates are arranged in the shell to divide the shell into roll shaft cavities on the two sides and a grinding cavity in the middle, a grinding piece and a longitudinal moving assembly for driving the grinding piece to move longitudinally are arranged in the grinding cavity, and pressing rollers are rotationally arranged in the roll shaft cavities. Through the synergistic effect of the polishing cavity and the negative pressure dust collection system, dust diffusion is effectively restrained, and the working environment is greatly improved; and by combining multi-axis linkage control of transverse movement, longitudinal movement and a lifting assembly, positioning of a grinding track is achieved, and the surface flatness and machining consistency of the workpiece are improved.

The utility model discloses a fan support cross beam which is of a steel structure and comprises a cross beam body and supporting pieces arranged on the two sides of the cross beam body, and reinforcing plates are arranged between the cross beam body and the supporting pieces. The supporting piece comprises a supporting vertical plate, a side plate is welded to the edge of the supporting vertical plate in a surrounding mode, a cavity is defined by the supporting vertical plate and the side plate, a hanging lug is arranged in the cavity, and the hanging lug, the side plate and the supporting vertical plate are subjected to abutted seam double-face full welding, and welding seams are not ground down. The mounting firmness of the hanging lugs is improved by adopting a manner of splicing seam double-sided full welding and not smoothing welding seams, and the stability of the bracket cross beam in the carrying process is improved; the reinforcing plate is fixed by welding through the pressing rivet screws, and the overall stability of the fan support cross beam is improved.

The utility model belongs to the technical field of decoration grinding device, especially relates to a wall surface grinding device for decoration, including base, adjusting mechanism and grinding mechanism, adjusting mechanism sets up on the base, adjusting mechanism includes first mobile module, second mobile module and lifting module, first mobile module sets up in the base, second mobile module moves and sets up on the first mobile module, lifting module moves and sets up on the second mobile module, lifting module moves and is equipped with lifting platform on lifting module, grinding mechanism sets up on the lifting platform, is used for the polishing of wall surface, through first mobile module, second mobile module and lifting module three mutual cooperation, have realized the accurate position adjustment of grinding mechanism in X, Y, Z three axial directions, have guaranteed no matter wall surface position height, grinding mechanism can accurately, stably abut, avoided the problem that the wall surface stress is uneven when the hand operation is difficult to reach high place, thereby greatly improved the polishing uniformity of wall surface and overall effect.

The utility model discloses a trimming device for plastic product production, which belongs to the technical field of plastic product processing, and comprises a first movable frame and a second movable frame, one end of the first movable frame is positioned on the inner side of one end of the second movable frame, and the end parts of the first movable frame and the second movable frame are provided with through holes. Through holes are formed in the first movable frame and the second movable frame, movable rods are movably arranged in inner cavities of the through holes, and supporting plates are fixed to the sides, away from the movable rods, of the inner cavities of the first movable frame and the second movable frame. And then the position of the grinding roller on the rotating shaft is adjusted, different corners can be conveniently attached, then the driving motor is used for driving the rotating shaft to drive the grinding roller, protrusions at the corners of the plastic products are ground to be flat, and the plastic product grinding device is suitable for the plastic products of different shapes, small and exquisite and convenient to operate.

The utility model belongs to the technical field of polishing devices, and particularly relates to a concrete ground smoothing device which comprises a supporting guide rail frame, a movable frame and a polishing vehicle frame. The supporting guide rail frame comprises adjusting tapered irons and a pair of guide rails, the pair of guide rails are fixedly connected through a connecting rod, the adjusting tapered irons are connected with the guide rails, and each guide rail is connected with at least two adjusting tapered irons; the moving frame is provided with first walking wheels matched with the pair of guide rails, and the moving frame horizontally and transversely moves along the pair of guide rails. Second walking wheels matched with the movable frame are arranged on the grinding vehicle frame, and a grinding machine is fixed to the grinding vehicle frame. The grinding device is provided with the supporting guide rail frame and the movable frame, and the levelness of the supporting guide rail frame is adjusted through the adjusting inclined iron. In other words, in the grinding process, the grinding machine moves with the supporting guide rail frame and the movable frame as the benchmark instead of the ground, and therefore the defect that the levelness is poor after final grinding due to the uneven ground can be overcome.

The invention relates to the technical field of hardware machining, and discloses a cutting and grinding device for hardware machining, which comprises a machine tool, sliding rails are symmetrically and fixedly mounted on two sides of the machine tool, movable blocks are slidably mounted on the sliding rails, fixed frames are fixedly mounted on the movable blocks, a mounting plate is slidably mounted on the other fixed frame, and mounting arms are symmetrically and fixedly mounted on the mounting plate. Shaft brackets are fixedly mounted on the mounting arms, rolling shafts are rotatably mounted on the shaft brackets, a winding box is fixedly mounted on one mounting arm, and a grinding belt is arranged in the winding box; in the cutting machining process, the movable block on the other side drives the grinding belt to grind a workpiece flatly, burrs generated by cutting are removed in time, cutting and grinding procedures are conducted synchronously, the influence of burr residues is avoided, the overall machining efficiency is improved, the grinding belt is small in width, vertically arranged and long in length, and the machining efficiency is improved. And the device can adapt to hardware workpieces with changeable shapes and complex structures, and the machining universality and flexibility are improved.

This invention discloses a grinding device for mold production with automatic workpiece changing, relating to the field of grinding technology. It includes a grinding component, a removal component, a recovery component, a machine base, a material changing component, and an outer casing. The material changing component, machine base, and ground are securely connected. The material changing component is located on one side of the machine base. The outer casing is securely connected to the machine base. The grinding component, removal component, and recovery component are located inside the outer casing. The grinding component, recovery component, and removal component are all securely connected to the machine base. This invention utilizes an airflow gap to cause the airflow inside the vents to move towards the airflow gap, thus expelling debris clogging the vents. Furthermore, the invention employs an arc-shaped guide surface to intermittently impact the surface of the grinding wheel layer with the airflow in the airflow gap. Combined with the outward flow of airflow within the vents, the ground abrasive undergoes greater airflow agitation, accelerating the abrasive shedding process.

The invention relates to the field of metal processing, in particular to a part smoothing device for metal processing, which is characterized in that a worktable is arranged in the middle of the top of a base, a support part is rotatably connected to the middle in the worktable, an upper mounting cover sleeves the support part, a lower mounting cover is arranged at the bottom of the upper mounting cover through bolts, and the lower mounting cover is slidably connected with the support part; an electric sliding rail is fixedly connected to the middle of the interior of the workbench, the top of the electric sliding rail is rotationally connected with the lower mounting cover, the bottom of the electric sliding rail is fixedly connected with a lifting part, the lifting part is slidably connected with the workbench, and symmetrically-arranged rotating shells are rotationally connected between the upper mounting cover and the lower mounting cover. According to the device, cutting and grinding processes are integrated, parts do not need to be transferred, clamped and positioned again, the labor intensity is remarkably reduced, the machining period is shortened, and automatic unfolding and shrinking of the grinding stone are achieved through cooperation of lifting and threads.

The application provides a metal plate grinding and polishing device, and belongs to the technical field of metal plate grinding. The device comprises a rack, an adjusting frame vertically sliding on the upper end of the rack, two belt conveyors for conveying the plate fixedly installed on the upper end of the rack, the belt conveyors being located between the rack and the adjusting frame, a plurality of grinding rollers rotatably connected in the rack and the adjusting frame, the grinding rollers in the rack vertically corresponding to the grinding rollers in the adjusting frame, air pipes arranged in the rack and the adjusting frame, the air pipes being distributed at intervals with the corresponding grinding rollers in the transverse direction, and conveying rollers rotatably connected to the outer sides of the air pipes. The device can simultaneously complete the grinding of the upper and lower surfaces of the plate, clean the dust on the surface and the assembling hole, and clean the rubber sleeves of the belt conveyor, the grinding roller and the conveying roller.

The utility model relates to the technical field of mining machinery processing equipment, in particular to a novel banana screen processing positioning tool which comprises a frame body. A plurality of groups of supporting and positioning assemblies are arranged at the upper end of the frame main body; the supporting and positioning assembly comprises a lower reference pipe and a side reference pipe which are welded to the frame body, and base plates welded to the upper end face of the lower reference pipe and the side face of the side reference pipe respectively, and the end faces of the base plates are flat faces and are formed by grinding the surfaces after welding. A positioning step used for supporting and positioning a banana screen body is formed between the base plate on the side reference pipe and the base plate on the lower reference pipe. The scheme has the advantages of improving the processing and positioning precision of the banana screen, enhancing the structural rigidity and adapting to the positioning requirements of screen bodies with different radians.

The utility model discloses a plastic product burr grinding device which comprises a workbench and a grinding brush, the grinding brush is arranged on the workbench through a support, a driving motor for driving the grinding brush to rotate is arranged at one end of the support, the grinding brush comprises a hollow cylinder and a plurality of bristle sets arranged on the outer wall of the hollow cylinder in the length direction of the hollow cylinder, and the bristle sets are arranged on the outer wall of the hollow cylinder. A hollow ring is arranged at the end, away from the driving motor, of the hollow cylinder, a connecting plate is arranged on the hollow ring in a sliding mode, a scraping ring is arranged at the end, away from the hollow ring, of the connecting plate, and the bristle set is sleeved with the scraping ring; a sliding rod in sliding fit with the guide groove is arranged on one side of the connecting plate, after a traditional polishing brush is used, part of burr waste residues are also likely to be mixed into the polishing brush, the follow-up polishing effect is affected, and the polishing brush can be conveniently cleaned.

This utility model discloses a welding fixture for manufacturing the wellhead of a nuclear waste storage well. It includes a base plate with mounting screws at its top. The connecting structure includes a first cylinder, a second cylinder, and a third cylinder, each with a first flange mounted on its outer side. A second fixing screw passes through the top of the second flange. This utility model uses a second flange mounted at the bottom of the first flange, with the first and second flanges engaging to sequentially assemble the cylinder and flange parts onto the fixture. Utilizing the positioning and limiting features on the fixture, and the stop on the flange's inner diameter, the spacing and parallelism of the flanges, the roundness of the cylinder, the coaxiality between cylinders, and the perpendicularity to surface A can be ensured. After assembly, the fixture is removed, and each weld is performed. The welds are then ground to meet non-destructive testing requirements, and the inner surface welds are ground smooth. This achieves the goal of facilitating stable assembly of the welding fixture for manufacturing the nuclear waste storage well head.

The present invention is applicable to the technical field of plate polishing, and provides an automatic flattening and polishing device for plate processing, comprising a frame, a movable plate, and a guide slot horizontally arranged on the side wall of the frame, wherein the movable plate is provided with a guide portion, which is slidably connected in the guide slot; a movable assembly is provided on the frame, and the movable assembly is used to drive the movable plate to move; a penetrating placement slot is provided on the movable plate, and a clamping assembly is provided in the placement slot, and the clamping assembly is used to fix the plate in the placement slot; elastic telescopic rods are rotatably connected to the inner walls of the front and rear sides of the frame, and a polishing shaft is rotatably connected between the two elastic telescopic rods. By driving the polishing shaft to rotate with the elastic telescopic rod and driving the plate to move with the movable plate, the plate is clamped once, and the upper and lower ends of the plate are automatically flattened and polished, thereby reducing the number of clamping times during plate flattening and polishing, thereby simplifying the plate flattening and polishing steps and improving the efficiency of plate flattening and polishing.