39results about How to "Avoid regrinding" patented technology

The invention discloses a welding joint and technique for a longitudinal seam and a circumferential seam of a medium-thick plate. The welding technique for the longitudinal seam and the circumferential seam of the medium-thick plate comprises the following steps that a groove inside the plate is machined; then, the surface and the two sides of the groove are cleaned; a priming layer, a filling layer and a surface covering layer of the internal groove are welded in a submerged-arc welding mode; then mechanical back chipping is conducted, and the back-chipped groove is detected nondestructively; and finally, a priming layer, a filling layer and a surface covering layer of an external groove are welded in a submerged-arc welding mode. By optimizing the groove type, the welding material filling amount is decreased, and the welding efficiency is improved; groove machining and welded seam back chipping are conducted through mechanical back chipping, base material hardening caused by rapid heating and cooling through carbon arc air gouging back chipping is avoided, the carburization phenomenon on the two sides of the groove of a stainless steel material is avoided, secondary polishing caused by using of a polishing machine is avoided, the back chipping efficiency is improved by about 50%, the labor intensity of workers is greatly reduced, the air environment is improved, and the welding quality of a cylinder is improved.

The invention discloses a sorting method of ultrafine copper sheets. The method comprises the following steps: taking PSD (D10: 1.0-5.0 [mu]m; D50: 6.0-9.0um; D90: 10.0-13.0 [mu]m) ultrafine copper sheets as raw materials; sorting the copper sheets through the multi-channel cyclone classification technology; controlling the particle size distribution and yield of products by controlling the gas flow rate and the air volume of an induced draft fan, wherein the gas flow rate is influenced by the pore diameter of a gas ring, the pore diameter of a gas hole is controlled to be 1.0-3.0 mm, and theflow of the induced draft fan is controlled to be 600-1,200 m<3> / h. Through the fine control of each operation parameter, products of different specifications can be produced through one-time operation, the customization requirements of different customers for the products are met, and the cost is saved.

The invention relates to a machining device for side grooving and end face machining of a honeycomb plate and double-side machining equipment of the honeycomb plate, and belongs to the technical fieldof honeycomb plate machining. The machining device for the side grooving and end face machining of the honeycomb plate comprises a mounting seat provided with a vertical sliding rail, a cutting assembly capable of moving along the vertical sliding rail, and a height adjusting mechanism for adjusting a position of the cutting assembly relative to the vertical sliding rail; the cutting assembly comprises a mounting frame connected to the vertical sliding rail in a sliding mode, a driving device fixed to the mounting frame and a cutter assembly connected to the driving device; the cutter assembly comprises a conversion shaft connected to the driving device and a cutter arranged on the conversion shaft, wherein the conversion shaft comprises a center shaft which is vertically arranged and connected to the output end of the driving device and an adjusting sleeve arranged on the center shaft in a sleeve mode; and the cutter comprise two cutter bodies located at the two ends of the adjustingsleeve correspondingly, and the cutter bodies are milling cutters or saw blades. According to the machining device, two functions of saw cutting and milling are achieved on one piece of equipment, and the cost of the machining device is reduced.

The invention discloses a grinding device for processing a wooden door, and particularly relates to the technical field of wooden door grinding. The grinding device comprises a supporting plate. A grinding frame is arranged on the top of the supporting plate. A grinding mechanism is arranged in the grinding frame. The grinding mechanism comprises a movable plate. A grinding brush is arranged at the bottom of the movable plate. Limiting rods are arranged at the four corners of the top of the movable plate correspondingly. The top ends of the four limiting rods are all fixedly connected with thetop of an inner cavity of the grinding frame. The bottom ends of the four limiting rods all penetrate through the movable plate and extend out of the bottom of the movable plate. The bottom ends of the four limiting rods are all fixedly connected with the bottom of the inner cavity of the grinding frame. A threaded rod is arranged on one side of the movable plate. By designing the grinding mechanism, the height of the movable plate and the grinding brush can be adjusted, the grinding brush at the bottom of the movable plate can always make contact with a door board so as to have a grinding effect on the surface of the door board, the door board is prevented from being repeatedly ground, and meanwhile resources are saved to a certain extent.

The invention relates to an edge cutting device of a doubler, in particular to an edge cutting device of a doubler blade, which can improve the doubled edge cutting quality of aluminum foil and reduce the use cost for an edge cutting tool. The invention belongs to the edge cutting device technical field. The edge cutting device of the doubler comprises a tool post 1 fixed on a cross beam 5; the device is characterized in that: a wafer 2 is fixed on the tool post 1; a tool post protecting hood 8 is arranged on the wafer 2; an opening of the tool post protecting hood 8 is provided with a rotation retaining plate 7; and a blade 9 is fixed on the wafer 2. The edge cutting device of the doubler can adjust or fix a use angle of the blade, controls a cutting depth and a centerline of a cutter groove in a certain scope for normal use and makes the tool adjusting operation simple and efficient; a cutting edge of the blade falls on the centerline of the cutter groove of a cutting shaft, and can not cause the abrasion of the cutting edge of an edge cutting shaft of the doubler; the edge cutting device adopts a cheap blade for edge cutting, avoids the cutting tool from re-grinding and reduces the use cost for the edge cutting tool; the end face of the doubled aluminum foil is very smooth and flat and has no disadvantages of burr, aluminum crumb, etc.; and the aluminum foil has high quality of edge cutting and is favorable for doubled rolling.

The invention discloses a convertible milling edge-type milling cutter bar for processing a constant-depth tooth arc-bevel gear, and belongs to the technical field of cutters, and solves the problemsthat a rhombic cutter blade is liable to wear and be in failure, and there is only one cutter edge on one rhombic cutter blade. The convertible milling edge-type milling cutter bar includes a cutter body, wherein a half of rhombic groove is formed on one end thereof; a rhombic bearing sheet is arranged on the bottom of the groove and a rhombic cutter blade is arranged on the rhombic bearing sheet.The rhombic cutter blade is fixed to the rhombic bearing sheet via bolts. Three recess grooves are formed respectively at each of two sides of the diagonal line of the rhombic cutter blade. Cutting edges are arranged on a pair of opposite edges of the rhombic cutter blade. If the cutting edges on one side of the cutter bar are damaged, the rhombic cutter blade can be rotated by 180 degrees for installation just by loosening the bolt without detachment of the cutter blade from a cutter head, so that resharpening and reinstallation of the cutter bar are avoided, and utilization rate of the cutter bar is improved. Abrasion on the rhombic cutter blade is reduced and service life of same is prolonged since the recess grooves are distributed on the front blade surface.

The invention discloses a low-energy-consumption colloid grinder type emulsifying machine. The two ends of a stator shell of the emulsifying machine are connected with a shell body and an end cover correspondingly. The shell body is internally provided with a main shaft. A shaft body of the main shaft of the emulsifying machine is sequentially connected with a coupler, a bearing and a rotor in a matched mode. One end of the rotor and one end of a stator are each provided with eight layers of conical grinding teeth. The rotor and the stator are engaged with each other through the grinding teeth. A fixing sleeve, a sliding sleeve and the baring of the emulsifying machine are located in the shell body and connected with one another. A sealing cover and a sealing ring are arranged between the main shaft and the sliding sleeve and are connected with each other. A gland and fillers are sequentially arranged between the stator shell and the main shaft of the emulsifying machine. A paper washer is arranged between the stator and the end cover. A sealing washer is arranged at one end of the stator. The emulsifying machine has super high shearing and grinding functions, the production efficiency is high, energy consumption is low, the overall sealing performance of the emulsifying machine is remarkably improved, and the service life of the emulsifying machine is significantly prolonged.

The invention relates to a wheat milling technology free of repeated grinding, which comprises the steps of cleaning, primary grinding, secondary grinding, purification and layered sieving. The layered sieving step is divided into three layers by improving operation standards and control parameters of the cleaning, primary grinding, secondary grinding, purification steps, and flour standards of the layers are strictly controlled, so that upper and middle layer flour can meet a quality requirement of flour and is directly packaged, and lower layer flour can mostly or fully meet the quality requirement of the flour and is partially or fully packaged; and a tee switching plate is arranged at the lower layer flour, so that when the lower layer flour fails to meet the quality requirement of the flour, the lower layer flour is guided to the sieving step via the switching plate. The technology can control the quality, is simple and flexible to operate, avoids stop and repeated grinding of the lower layer flour, improves the production efficiency and the product quality, increases the flour yield, lowers the production cost, saves a resource, and facilitates flour quality monitoring.

The invention relates to the technical field of electroplating, and particularly relates to a preparation method of a nickel-polytetrafluoroethylene coating. According to the invention, nickel is combined with polytetrafluoroethylene, a fluorinated ethylene-propylene copolymer, a perfluoroalkoxy copolymer and other assistants to be used as an electroplating solution and used for electroplating under certain conditions. The invention can be widely applied to various base materials such as steel, copper alloys, wrought aluminum, cast iron, stainless steel and the like, and can be also perfectly used on various injection molding materials except pure rubber, such as silica gel, TPO0, PVC (polyvinyl chloride) and the like. The coating is favorable in wear resistance and non-corrosibility, has weldability and hardenability, and causes no negative effect on the surfaces of other molds.

The invention discloses layered grinding equipment. The layered grinding equipment comprises a shell body which is provided with a feeding inlet, a discharging outlet and a grinding and pressing channel. The grinding and pressing channel is internally provided with grinding and pressing rollers, and rotating shafts connected with the grinding and pressing rollers, and a partition plate is arranged in the middle of the grinding and pressing channel. The direction of the partition plate is the same as that of the grinding and pressing channel. The grinding and pressing channel is divided into an upper grinding cavity and a lower grinding cavity through the partition plate. Screen nets are uniformly arranged on the partition plate. The grinding and pressing rollers comprise the upper-layer grinding and pressing roller and the lower-layer grinding and pressing roller. The rotating shafts comprise the upper-layer rotating shaft and the lower-layer rotating shaft. The feeding inlet communicates with the upper grinding cavity. The discharging outlet communicates with the lower grinding cavity. The shell body is provided with an upper driving motor and a lower driving motor. According to the layered grinding equipment, the structure is simple, operation is convenient, grinding is conducted through the up-down two-layer structure, and the situation of insufficient grinding can be effectively avoided; accordingly, regrinding is avoided, human and material resources are saved, and the machining cost is greatly reduced; and the using stability is good, the applicability is high, and the practicality is good.

The invention provides a method for sensing the position and posture of a grinding and polishing unit, a grinding method and a grinding and polishing unit, which acquire the deviation between the initial coordinates of the grinding and polishing unit and the target coordinates, and the robot controls the grinding and polishing unit to run from the initial coordinates to the target coordinates , use the attitude sensor to obtain the running angle of the grinding and polishing unit every preset time, and use the optical flow sensor to obtain the moving distance of the grinding and polishing unit between adjacent moments, and based on the dead reckoning algorithm, the coordinates of the grinding and polishing unit at the current moment can be obtained ; According to the deviation between the current coordinates of the grinding and polishing unit and the target coordinates, the robot controls the grinding and polishing unit to run from the current coordinates to the target coordinates until it reaches the target coordinates. The robot obtains the position and motion posture of the grinding and polishing unit to adjust the direction of the next step. It can adjust the trajectory of the grinding and polishing unit in real time, so that the grinding and polishing unit continues to move to the target coordinates, ensuring that the actual trajectory of the grinding and the planned trajectory are consistent. Consistency, avoid repeated grinding.

The invention discloses an efficient vertical type grinder. The efficient vertical type grinder comprises a driven belt pulley, a first grinding wheel, a discharging opening, a control cabinet and a control panel. A motor is installed on the upper side in the control cabinet. A controller is arranged on the right side of a frequency converter. The control panel is arranged in the middle of the side face of the control cabinet. A driving belt pulley is installed on the top of the motor. The bottom end of the rotating shaft penetrates through a grinding device shell to be connected with a bearing. A spiral smashing blade is fixed to the upper side of the rotating shaft in the grinding device shell. A second grinding wheel is installed below the first grinding wheel. A feeding opening is formed in the upper left side of the grinding device shell. The discharging opening is installed on the lower left side of the grinding device shell. An ultrasonic transducer is installed at the bottom ofthe grinding device shell. The efficient vertical type grinder is compact in structure, convenient to use, high in powder crushing efficiency and good in market prospect.

The invention discloses a method for removing micas in nephelite by using a cyclone, which comprises the following steps of: (1) preprocessing a nephelite raw ore into an ore pulp consisting of nephelite powder, mica powder and water; (2) pumping the ore pulp into the cyclone by using a slurry pump; and (3) under the action of the centrifugal force of vortex, throwing spherical nephelite particles to a side wall of the cyclone to ensure that the spherical nephelite particles lose energy and are settled down, and then serve as underflows to flow out from the bottom of the cyclone, wherein the fluid resistance endured by sheet mica particles is greater than that of the spherical nephelite particles to ensure that the sheet mica particles cannot be thrown to the side wall of the cyclone to lose energy and be settled down; the fluid resistance endured by the sheet mica particles during settling down is greater than that of the spherical nephelite particles to ensure that the settling speed is slow; and the sheet mica particles are suspended in solid-phase two-phase flow to serve as an overflow which flows out from the top part of the cyclone under the pressure of a slurry pump. A product processed by the process method has a higher yield compared with the nephelite raw ore, and the mica content in the product is low.

The invention discloses a glass pipe polishing treatment method. The glass pipe polishing treatment method comprises the following steps: firstly, a cylinder is started to push a motor to move; a clamping column moves in a direction far from a base at the same time until a horizontal section of the clamping column is totally shifted out of a sleeve; then, a glass pipe sleeves the horizontal section of the clamping column; the end part of the glass pipe is fixed through an end cover; the motor is started; an output end of the cylinder shrinks back at the same time to drive the clamping column and the glass pipe to move in the axis direction of the sleeve to a direction near the base; the outer wall of the glass pipe is polished by a polishing layer; and when the glass pipe moves in the peripheral direction and the axial direction at the same time, the polishing layer skims over the outer wall of the glass pipe in sequence. The glass pipe polishing treatment method uses the polishing layer for annularly polishing the outer wall of the glass pipe, and reasonably adjusts the cylinder and the motor to prevent repeated polishing of local outer wall of the glass pipe by the polishing layer when removing a raw material layer of an electric heating film projected on the outer wall of the glass pipe so as to guarantee the heating efficiency of a heating pipe.

The invention discloses a three-degree-of-freedom curved surface self-adaption intelligent force-controlled flexible grinding and polishing end executive device. The three-degree-of-freedom curved surface self-adaption intelligent force-controlled flexible grinding and polishing end executive device comprises a two-dimensional attitude adjusting assembly, a linear servo force-controlled assembly,a grinding and polishing assembly and a controller. The linear servo force-controlled assembly realizes real-time control and feedback of grinding contact force by closed-loop control of contact forceto ensure constant contact force machining. The two-dimensional attitude adjusting assembly realizes the real-time adjustment of the grinding disc attitude by closed-loop control, so that the grinding surface always coincides with the local tangent plane of the curved surface to realize the curved surface self-adaption, the problems of uneven grinding, over-grinding and the like are effectively prevented, and the robot self-adaption flexible grinding and polishing machining is achieved. According to the three-degree-of-freedom curved surface self-adaption intelligent force-controlled flexiblegrinding and polishing end executive device, the grinding disc always do centering movement when the attitude is adjusted, so that unnecessary displacement can not be produced when the grinding discadapts to the change of the curved surface, repeated grinding and polishing on the polished area is effectively prevented, the uniformity and consistency required by the grinding and polishing processare ensured, and the three-degree-of-freedom curved surface self-adaption intelligent force-controlled flexible grinding and polishing end executive device is suitable for the self-adaption high-precision grinding and polishing of large free curved surface parts, especially large wind turbine blades.

The invention relates to the technical field of glass fiber powder processing, and discloses a glass fiber crushing and grinding equipment for glass fiber powder processing, which includes a box body, the top of the box body is provided with a feeding port, and the left and right inner walls of the box body are fixedly installed with The horizontal plate, the length of the horizontal plate on the right is greater than the length of the left horizontal plate, the top of the horizontal plate is fixed with a slide bar, the upper movable sleeve of the slide bar is connected with a fixed plate, and the bottom of the fixed plate and the top of the horizontal plate are fixed with a support The spring, the same crushing box is fixed between the side walls of the two fixing plates, the telescopic hose is connected between the top of the crushing box and the feeding port, and the middle part of the top of the crushing box is fixed with a fixed frame, which is a door type. Slots are provided in the middle of both side walls, and two support plates are fixed on the inner top wall of the box. The invention solves the problems of incomplete crushing, low efficiency of crushing equipment for glass fiber powder production, waste of resources, overflow of dust during processing, and environmental pollution.