48results about How to "Avoid excessive sanding" patented technology

The invention discloses an area based steel rail grinding method. The method comprises the following steps: (1) dividing a section profile of a steel rail into a plurality of grinding regions; (2) aligning the measured section profile of the on-site steel rail to a polishing target section profile; (3) calculating a steel rail polishing area of each grinding region of the on-site steel rail after alignment; (4) calculating the number of grinding heads required by each grinding region of the on-site steel rail; and (5) equally dividing the steel rail grinding area of each grinding region of the on-site steel rail according to the number of the required grinding heads, namely dividing each grinding region into small blocks equal in area, wherein a center line angle of each small block is an angle of each steel rail grinding head. The area based steel rail grinding method greatly improves the accuracy of steel rail grinding, is capable of effectively reducing the energy consumption of a grinding train, reducing unnecessary steel rail grinding quantity and prolonging the service life of the steel rail, and thus has important theoretical and practical significances.

The invention relates to a vacuum cup grinding production line. The vacuum cup grinding production line comprises a feeding device, a plurality of grinding devices and a plurality of polishing deviceswhich are sequentially arranged and used for conveying vacuum cups one by one, and further comprises a plurality of industrial robots used for transferring the vacuum cups to the grinding devices orthe polishing devices to be ground or polished. The plurality of grinding devices and the plurality of polishing devices correspond to the plurality of industrial robots in a one-to-one mode; each grinding device comprises a belt sander rack, each belt sander rack is provided with an abrasive belt mechanism, each abrasive belt mechanism comprises an abrasive belt main beam, a driving motor, a driving wheel, a driven wheel and an abrasive belt, and each driven wheel is arranged on the corresponding abrasive belt main beam through a driven support; and a floating grinding assembly is arranged between each abrasive belt main beam and the corresponding belt sander rack, each floating grinding assembly comprises a floating arm, bearing columns are arranged at the two ends of each floating arm,and each floating arm is movably connected with the corresponding abrasive belt main beam and belt sander rack through the bearing columns and enables the abrasive belt main beam to swing left and right in the belt sander rack through the corresponding floating arm.

The invention discloses a baseball bat machining and grinding integrated device. The baseball bat machining and grinding integrated device comprises a workbench, a machining and grinding device main body and a mounting plate, wherein a first rotary motor is arranged at the lower end of the interior of the machining and grinding device main body, first threaded rods are arranged on the two sides ofthe first rotary motor, transmission belt wheels are arranged on the surfaces of the first threaded rods, a plurality of nuts are arranged at the upper end of each transmission belt wheel, connectingrods are arranged on one sides of the nuts, the mounting plate is arranged on one sides of the connecting rods, a driving belt wheel is arranged on one side of the mounting plate, auxiliary belt wheels are arranged on the two sides of the lower end of the driving belt wheel, a grinding belt is arranged on one sides of the auxiliary belt wheels, and a plurality of second sliding rails are arrangedon the surface of the other side of the mounting plate. According to the baseball bat machining and grinding integrated device, a nicking tool and the grinding belt are arranged so that grinding canbe carried out through the grinding belt while plastic carving is carried out through the nicking knife, and the machining efficiency of a baseball bat is greatly improved.

The invention discloses a railway track rust removal device and method. The device comprises a mobile platform; a shot blasting structure, an exhaust fan and a collecting box are borne on the mobile platform; a box body with a cavity is connected below the mobile platform; an opening is formed in the side surface of the cavity; the opening is used for being matched with a rail to form a closed operation cavity; the box body is provided with a first interface and a second interface which are communicated with the cavity; the first interface is communicated with the shot blasting structure; theshot blasting structure is used for spraying airflow carrying a spraying material onto the rail web through the first interface; the second interface is sequentially communicated with the exhaust fanand the collecting box. The shot blasting structure is used for spraying materials to a rail web, attached dust falls off due to impact vibration, a rail web base body is exposed, the sprayed materials, the dust and air are extracted by the exhaust fan in cooperation with the collecting box to be separated from an operation box, rust dust attached to a rail is removed, and the problem that the efficiency of an antirust agent is affected by residual dust is solved.

The invention discloses an opening closing and grinding structure for a self-locking nut of an aerospace vehicle. The structure comprises a base and a stand column arranged on the base; a spacing hole which is matched with a self-locking nut is formed in the upper end surface of the stand column; the structure also comprises an annular opening closing plate arranged on the stand column in a sleeving manner; a plurality of straight holes are formed in the radial direction of the opening closing plate on a main body; after the end part of an ejecting block movably penetrates through the straight holes, the end of the ejecting block extends to the middle of the opening closing plate; and a grinding sheet which is matched with the opening closing part of the self-locking nut is arranged at the end part of the extended section of the ejecting block and the grinding sheet directly faces the upper end of the spacing hole. Aiming at the defects, the inventor develops a quick grinding and polishing device for the self-locking nut after completion of opening closing, removal of the burr or protrusion on the opening closing part of the self-locking nut is realized quickly, and besides, the follow-up treatment cost of numerous self-locking threads in the aerospace vehicle is reduced, so that the self-locking nut has good anti-vibration ability.

The invention discloses a machining device for removing burrs in steel transportation. The machining device comprises at least two fixed frames, wherein horizontal movable rods are mounted on the inner sides of the fixed frames, the horizontal movable rods penetrate through the side walls of the fixed frames, and fixed plates are mounted at the ends, located on the inner sides of the fixed frames, of the horizontal movable rods; a steel laminate abutting pulley is rotatably connected in the fixing plate, the steel laminate abutting pulley makes contact with the side wall of the steel in an abutting mode, a first expansion spring is mounted in front of the fixing plate and the inner wall of the fixing frame, and the horizontal movable rod is sleeved with the first expansion spring; by designing the device, the device is mounted on steel plate transportation equipment. When a steel plate passes, a steel laminate is extruded to abut against the pulley, so that a grinding block fixing piece rotates towards one side of the steel plate, burrs of the steel plate are ground and removed through a grinding block, and when the device is not used, the grinding block fixing piece can reset under the action of a tightening spring; The device is simple in structure and high in practicability.

The invention discloses a circular saw with a grinding function. The circular saw with the grinding function comprises an L-shaped connecting plate, one side of the lower end of the L-shaped connecting plate is connected with a cutting motor through a bolt, an output shaft of the cutting motor penetrates through one side of the L-shaped connecting plate, a cutting blade is arranged at the end of the output shaft of the cutting motor, a matched inner cavity is formed in the L-shaped connecting plate, the cutting blade is located in the matched inner cavity, a middle box body is arranged in the matched inner cavity, an inner cavity is formed in the middle box body, symmetrical surrounding grooves are formed in the end walls of the two sides of the inner cavity in a communicating mode, symmetrical sliding blocks are arranged in the surrounding grooves in a sliding mode, matching column bodies are arranged between the positions, located on the two sides of the inner cavity, of the sliding blocks, connecting rods are arranged on one sides of the matching column bodies, and grinding cone pulleys are rotationally arranged on one sides of the connecting rods. According to the equipment, and a saw blade of the circular saw can be fully and efficiently ground through a triangular file so that the circular saw can be kept in a good working state.

The invention discloses a surface grinder with a lifting platform, and belongs to the technical field of surface grinders. The surface grinder with the lifting platform comprises a lathe bed. A fixedseat is arranged at the top of the lathe bed, the lifting platform is arranged at the top of the fixed seat, fixed blocks are arranged on the outer sides of the bottom of the left and right sides of the fixed seat, and a rotating bevel gear is arranged at the bottom of the outer wall of a screw rod. The rotating bevel gear meshes with a driven bevel gear, lifting blocks are arranged on the inner sides of the bottom of the left and right sides of the lifting platform, the lifting blocks are screwed to a screw rod in a threaded mode, and a stand column is arranged at the rear end of the lathe bed. An upper and lower moving plate is arranged at the left end of the stand column. A front and rear moving plate is arranged at the left end of the upper and lower moving plate, and a grinding wheelframe is arranged at the left end of the front and rear moving plate. A grinding wheel is arranged at the bottom of the grinding wheel frame. The surface grinder with the lifting platform can adjust the lifting and lowering of a working platform slightly by manually rotating a rotating disc, and the requirement of accurate grinding is met.

The invention provides a manufacturing process of a high-frequency copper clad plate. The cooperation is completed through the cooperation of a base, a U-shaped frame, a downward pressure cylinder, apositioning block, a trimming unit, a driving unit and an air suction unit. The problems that the end surface of the copper clad plate is damaged due to the fact that sandpaper may come into contact with the upper and lower end surfaces of the copper clad plate when sanding due to small edge surface of the copper clad plate, excessive polishing often occurs due to difficult to control the strengthof manual polishing, and material chips produced by polishing are difficult to collect are solved.

The invention discloses an environment-friendly wall surface smoothing device for building construction and a building construction method. The environment-friendly wall surface smoothing device comprises a smoothing trolley and an abutting plate assembly, the smoothing trolley comprises a trolley plate, and locking universal wheels are installed on the four corners of the bottom of the trolley plate; the environment-friendly wall surface smoothing device is characterized in that a stand is arranged at the top of the trolley plate, supporting legs are arranged between the bottom side of the stand and the trolley plate, a rail vertical pipe is fixedly mounted on the top side of the stand, the rail vertical pipe is of a rectangular pipeline-shaped structure, a rectangular lifting column is vertically and glidingly mounted in the rail vertical pipe, a threaded groove is formed in the bottom of the rectangular lifting column, a threaded column is connected in a threaded mode, a rotating circular plate is fixedly mounted at the bottom end of the threaded column, and a universal ball and a connecting rod are mounted on the bottom side of the rotating circular plate. According to the device, the wall surface smoothing effect is guaranteed, the polishing range is wide, using is more convenient and faster, labor is saved, the application range is wide, the design is reasonable, the structure is stable, and the using requirement of building workers for wall surface flatness treatment in the construction process is met.

The invention discloses a stepping motor gear and a one-time precision cutting die thereof, and relates to the technical field of stepping motor gear machining. The stepping motor gear comprises a stepping motor gear body and the one-time precision cutting die; the one-time precision cutting die comprises a machining support and a pressure plate, the machining support is used for placing a to-be-machined stainless steel plate material; the pressure plate is fixedly arranged at the bottom end of a hydraulic cylinder; a one-time precision cutting structure comprises a pre-pressing cylinder piece, a first supporting rod, and a second supporting rod, the bottom end of the second supporting rod is fixedly connected with an inner circle fine cutting piece through a bolt. According to the stepping motor gear and the one-time precision cutting die thereof, the flatness of the surface of a stainless steel plate can be detected before precision cutting, the uneven surface of the stainless steel plate is prevented from being machined, the surface of the stainless steel plate is pressed and clamped during precision cutting, and the condition that the finish-cut part on the surface of the stainless steel plate is tilted or the finish-cut surface is not flat is avoided, so that the quality of the machined stepping motor gear is improved.

The invention relates to an abrasive belt grinding machine for a casting head cutting and grinding assembly line of a vehicle casting. The abrasive belt grinding machine comprises a mounting frame andan abrasive belt grinding mechanism, and the abrasive belt grinding mechanism comprises an abrasive belt rack, an abrasive belt main beam, an abrasive belt driving motor, a driving wheel, a driven wheel and an abrasive belt. A flexible grinding assembly is arranged between the abrasive belt main beam and the abrasive belt rack, the flexible grinding assembly comprises a flexible swing arm, bearing columns are arranged at the two ends of the flexible swing arm, the flexible swing arm is movably connected with the abrasive belt main beam and the abrasive belt rack through the bearing columns, the abrasive belt main beam is made to swing left and right in the abrasive belt rack through the flexible swing arm, a floating grinding assembly is arranged between the driven wheel and the abrasivebelt main beam, the floating grinding assembly comprises a movable support, a swing base and a floating motor, the floating motor is provided with a buffer guide wheel, an arch-shaped groove is formedin the middle of the swing base, the buffer guide wheel is arranged in the arch-shaped groove, therefore, the driven wheel swings leftwards and rightwards through the movable support, the movable support is provided with a return tension spring, and the movable support returns after grinding through the return tension spring.

The invention discloses an adjustable-target-distance nozzle and method suitable for abrasive water jet steel rail polishing, the adjustable-target-distance nozzle comprises a nozzle main body, an outer cover, a lower baffle, a support frame and an upper baffle which are arranged on the same central axis, the nozzle main body is connected with the upper baffle through threads, and the nozzle target distance can be adjusted by screwing the displacement of the nozzle main body; the outer cover, the lower baffle and the support frame sleeve the nozzle main body to limit the radial displacement of the nozzle main body; a pressure sensor is arranged between the nozzle body and the supporting frame, a spring is arranged between the supporting frame and the upper baffle, the elastic coefficient of the spring is measured through the calibration gauge and the read pressure value, the upper computer generates a pressure-displacement curve comparison table according to the elastic coefficient, and after the adjustment distance needed by the optimal target distance to be adjusted of the nozzle is measured, the pressure-displacement curve comparison table is adjusted. The upper computer gives a pressure threshold value, the nozzle body is screwed to enable the pressure borne by the spring to reach the threshold value, and then the adjustment work of the optimal target distance can be completed. The nozzle can be independently adjusted, the target distance precision of other nozzles is not affected, the operation method is simple, and the target distance adjusting precision is high.

The invention provides a method for establishing a plane putty robot polishing database. The method comprises the following steps: programming a program of a robot plane polishing track; testing the influence of the polishing parameters of the plane putty robot on the quality of the polished surface, and measuring the removal amount of the experimental polished surface by using a measuring tool; and, through comprehensive consideration of two data of the surface removal amount and the polishing time, determining the time-varying relation between polishing parameters and polishing results, and establishing a polishing database. According to the method, provided in the invention, for establishing the plane putty robot polishing database, the relation between the polishing parameters and the polishing quality is determined, and repeated plane polishing work can be efficiently carried out on the premise that the polishing quality is met.

The invention provides a manipulator composite grinding tool for a thin-walled part, and belongs to the field of grinding and polishing. The manipulator composite grinding tool is characterized by comprising a bracket, a base, a grinding device, a magnetic grinding device and a control device; the bracket is used for being connected with a manipulator, the base is mounted on the bracket in a lifting manner; the grinding device is arranged on the base and is provided with a grinding part for polishing the thin-wall part from one side of the thin-wall part; the magnetic grinding device is arranged on the base and provided with a rotatable magnet assembly arranged on one side of the thin-wall part and magnetic abrasive particles arranged on the other side of the thin-wall part, and the magnetic abrasive particles are matched with the rotating magnet assembly to be used for grinding the other side of the thin-wall part; and the control device is used for controlling double-sided grinding of the grinding device and the magnetic grinding device. According to the grinding tool, the normal pressure on the thin-wall part is reduced, the stress deformation in the grinding process is reduced, the design difficulty and the manufacturing cost of a thin-wall part clamp are reduced, and the process efficiency is improved.

The invention relates to the technical field of metal powder processing, and discloses a surface post-treatment method for a 3D printing copper alloy contact material. The surface post-treatment method comprises the following steps that S1, sand blasting grinding materials are sprayed out by sand blasting equipment to conduct sand blasting grinding on the surface of a copper alloy contact; S2, the copper alloy contact obtained after sand blasting and a cleaning tool are put into a PP liquid storage tank to be cleaned; S3, the surface is neutralized by using a degradable environment-friendly solvent; S4, rough polishing is conducted for 20-30 min at first, and then fine polishing is conducted three times through an Al2O3 and SiO2 ceramic abrasive material; S5, magnetic precision grinding is carried out, the frequency ranges from 20 Hz to 60 Hz, the time ranges from 60 min to 180 min, and the magnetic field exchange time ranges from 1 min to 3 min; and S6, vacuum cleaning and drying are conducted. The surface post-treatment method for the copper alloy contact can meet the requirements of the market on the appearance quality of the copper alloy contact, and has the advantages of low cost and high efficiency.

The invention discloses a low-power-consumption and high-precision protocol integrated circuit module packaging process, which can reduce the probability of chip offset, fly wire breakage or parallel connection among fly wires in the packaging process of a circuit module, and is characterized in that a metal frame is fixedly arranged above a circuit substrate in a sleeving manner when the circuit module is bonded; the metal frame is arranged on the top of the circuit substrate, the reinforcing ribs are fixedly arranged on the top of the metal frame, the probability that chips and fly wires are affected by flowing of epoxy resin during injection molding packaging can be effectively reduced, the production stability can be improved, meanwhile, the metal frame is arranged on the top of the circuit substrate, the probability that products are stressed and broken during later cutting can be reduced, and the product quality is improved. The structural strength of the circuit module small blocks produced by the process is improved, and the product quality is improved to a certain extent.