9results about How to "Guaranteed surface roughness" patented technology

The galling mechanism for improving the mounting stability of the concrete prefabricated part comprises a galling moving frame, supporting stand columns are mounted at the bottom of the galling moving frame, a galling moving beam is mounted at the top of the galling moving frame, and a lifting hanging bracket is arranged at the bottom of the galling moving beam; a lifting seat is mounted at the bottom of the lifting hanging bracket, a galling main body is mounted at the bottom of the lifting seat, and a galling cutter is mounted at the bottom of the galling main body; when the roughening machine is used for machining roughness on the surface of a concrete prefabricated part, the distance between the roughening cutters can be adjusted according to the machining requirement of the concrete prefabricated part, and the distance between the roughening cutters is changed after adjustment, so that traces of different gaps can be machined during roughening, different roughness is formed, and the roughening efficiency is improved. And adjustment can be conducted according to the requirements of machined prefabricated parts, the device is suitable for machining of different prefabricated parts, meanwhile, the functionality and practicability of the device are improved, and therefore the device can be better used for galling.

The invention discloses an air control system for cleaning floating powder of a flour mill, and relates to the technical field of flour mills, the air control system comprises a drainage pipe, the top end of the drainage pipe is provided with an air volume adjusting device, the air volume adjusting device is arranged in an observation cylinder, the bottom port of the drainage pipe is communicated with a blanking hopper, and the blanking hopper is communicated with a negative pressure air suction pipe. The grinding roller is simple in structure and convenient to install, floating powder and ash content bypass a grinding system of the flour mill by communicating the drainage pipe with the discharging hopper, the surface roughness of the grinding roller is guaranteed, the grinding roller cannot be affected by the floating powder and the ash content to become smooth, and the service life of the grinding roller is prolonged; therefore, materials can be fully ground, the phenomenon of material tabletting is reduced, and the quality of discharged powder is improved.

The invention relates to a mirror surface processing method for an aluminum material, in particular to the field of surface processing, and the mirror surface processing method comprises the following steps: sequentially carrying out rough milling and finish milling on an aluminum layer processing surface to obtain a processed surface with the roughness Ra less than 0.04 mu m; the idling time of the milling cutter before the rough milling is not less than 15 minutes; the idling time of the milling cutter is not less than 15 minutes before the finish milling is started; the rotating speed of the main shaft of the rough milling is smaller than that of the main shaft of the finish milling; and the feeding amount of the rough milling is larger than the feeding amount of the finish milling. According to the mirror surface machining method provided by the invention, through the design of the machining process, the machining precision and stability when the surface of the aluminum material is milled are improved, so that the roughness Ra of the machined surface obtained through machining is smaller than 0.04 mu m, the mirror surface reflectivity is larger than or equal to 70%, the mirror surface effect is achieved, and good use performance is achieved.

The utility model discloses a kind of compressor impeller blade top grinding tool, belong to compressor impeller processing field.The tool, including annular fixed plate and transition shaft;The center of the fixed plate is equipped with the through-hole of installation transition shaft, the outer ring of through-hole is equipped with several notches for sliding of bed chuck jaw, it is equipped with several first locating hole, first mounting hole and second mounting hole on fixed plate, through the cooperation of positioning rod and first locating hole, fixed plate is positioned on bed chuck chuck, through the cooperation of first mounting hole, stud, T-shaped block and nut arranged on bed chuck chuck, fixed plate is fixed on bed chuck chuck;The transition shaft fixes impeller, and transition shaft is fixed on fixed plate.The utility model can be separately ground blade top to single impeller blade top, install the tool on multiple ordinary horizontal lathe, then multiple impellers can be simultaneously ground blade top, greatly shorten product manufacturing cycle, and can guarantee grinding accuracy and surface roughness.

The milling process of the wheel disc mortise comprises the following steps: roughly milling an upper section of the mortise; roughly milling a straight groove and an inclined surface of the mortise; the middle throat part is roughed, the allowance of the middle throat part is formed and milled through a T-shaped milling cutter, and the allowance of the opening area of the middle throat part is further removed; forming and rough milling are carried out on the middle throat part, forming and milling are carried out, and an irregular allowance area in rough milling is removed; performing semi-finish milling and forming milling; semi-finishing molded lines of a middle throat part and a bottom part; carrying out semi-finish milling on an area; the upper section is subjected to finish milling through an upper section polishing tool; eccentric finish milling; a smooth-edge eccentric finish milling cutter is used for completing single-side milling; finish-milling the bottom molded line: finish-milling the bottom molded line; a wheel disc clamping and dividing device for machining wheel disc mortises comprises a dividing rotary table, a transition disc, a circular pressing plate, a double-end stud, a circular mandrel and a nut. A transition disc is mounted on the indexing turntable, and a hole and a groove are pre-formed in the transition disc; end face teeth are arranged on the upper portion of the transition disc and used for meshing with the wheel disc to transmit torque after automatic centering and positioning.

The utility model discloses a die scraping device which is applied to a cold heading machine, the cold heading machine comprises a cold heading bottom module and a clamp module, and the die scraping device is characterized in that the die scraping device is fixed on the cold heading bottom module, the die scraping device comprises a support with a mounting hole, the support is provided with a torsional spring fixing piece used for being connected with a torsional spring in a sleeved mode, and the torsional spring fixing piece is provided with a clamping groove. A torsional spring fixing piece is arranged on the support, a scraping piece close to a die opening of the clamp module is rotatably fixed to the torsional spring fixing piece, a first positioning pin is arranged on the support, a second positioning pin is arranged on the scraping piece, and the torsional spring is fixedly installed through the first positioning pin and the second positioning pin. Due to the fact that the die scraping device is additionally arranged on the cold header, when impurities such as burrs are reserved on the die orifice of the clamp module and the whole clamp module moves, the scraping piece of the die scraping device can scrape the impurities such as the burrs, and therefore the surface roughness and the appearance of products can be guaranteed, and the yield is improved.

This utility model relates to the field of grinding disc processing technology, and discloses a grinding machine for grinding discs, including a machine base, a left grinding mechanism, a right grinding mechanism, a grinding disc fixture, and a movement control system. The left grinding mechanism includes a left moving seat, a left grinding seat, a left grinding motor, and a left grinding wheel. The left moving seat is connected to the machine base via left and right moving lead screws, which are driven by the left and right moving motors. The left and right grinding mechanisms can simultaneously grind both sides of the grinding disc, avoiding the problem of multiple fixing and adjustment of position required in traditional single-sided grinding or manual grinding methods, greatly shortening processing time, reducing positioning errors, and improving tool accuracy. This utility model has a compact structure and is easy to operate, suitable for large-scale industrial production, and can also meet the processing needs of small batches and multiple varieties, with broad application prospects.

The invention relates to a reciprocating type polishing device for eliminating gear vibration marks, which comprises an output transmission mechanism, an axial driving mechanism and a gear rotating mechanism, the output transmission mechanism comprises a first speed reducer, the first speed reducer is connected with a transmission shaft, and the surface of the transmission shaft is provided with a polishing and grinding surface; the axial driving mechanism is mounted on the transmission shaft, and the axial driving mechanism is configured to drive the gear to do axial reciprocating motion on the polishing and grinding surface; the gear rotating mechanism is located on one side of the transmission shaft and configured to drive the gear to rotate in the direction opposite to the transmission shaft. The axial driving mechanism is installed on the transmission shaft, the polishing and grinding face is arranged, so that the gear can do axial reciprocating motion on the polishing and grinding face, the gear rotating mechanism is arranged on one side of the transmission shaft, the gear can rotate relative to the transmission shaft, an inner hole of the gear is evenly polished in two directions, and the problems that in the related technology, time and labor are consumed when vibration marks are manually eliminated, and efficiency is high are solved. And meanwhile, the surface roughness and the size precision of the gear inner hole cannot be guaranteed.

The invention relates to a method for repairing the thermal performance of the surface of a quartz part. The repairing method comprises the following steps: carrying out sand blasting treatment on a quartz part, and carrying out first cleaning and first blow-drying; carrying out etching treatment on the quartz part subjected to sand blasting treatment, and carrying out secondary cleaning and secondary blow-drying to obtain a repaired quartz part; wherein an etching solution adopted in the etching treatment is a mixed solution of hydrofluoric acid, first acid and water, or a mixed solution of sodium hydroxide and water, or a mixed solution of ammonium fluoride, oxalic acid dihydrate, first acid and water. According to the repairing method, subsurface defects and residual impurity layers generated in the sand blasting process are effectively removed, the damage starting point of the quartz part under the high-temperature operation condition is blocked, the surface smoothness and purity are improved, the softening temperature of the quartz part is effectively recovered, the thermal performance of the surface of the quartz part is improved, and the service life of the quartz part is prolonged. And meanwhile, the surface roughness of the quartz component is guaranteed, and the adhesive force of surface deposits of the quartz component is improved.