64results about How to "Uniform cutting force" patented technology

The invention discloses a nanometer silicon dioxide thin film base polished section and a preparation method of the nanometer silicon dioxide thin film base polished section. The preparation method includes the following steps that (1) nanometer silicone sol is prepared; (2) a precoating is coated on a PET tape base and a processed base material is obtained; (3) the nanometer silicone sol, soluble resin, and a soluble curing agent are mixed and then abrasive coating liquid is obtained; (4) the abrasive coating liquid is evenly coated on the base material processed in the step (2), a semi-finished product is obtained and is solidified under 80 DEG C to 100 DEG C for 40 hours to 60 hours, and the nanometer silicon dioxide thin film base polished section is obtained. The nanometer silicon dioxide thin film base polished section is even in cutting force, and good in polishing effect when the polished section is applied to an optical fiber connector.

A hob pulverizing machine comprises a stander (6) and a hob mounted on the stander. The hob comprises a horizontal rotating shaft (2) and a moveable knife tackle (1) installed on the rotating shaft. The moveable knife tackle has a subassembly of blades with cutting edge (15). The blades are separated by a range spacer (4). The rotating shaft of the moveable knife tackle is connected with a gear (5). A meshed cylinder (7) is arranged outside the moveable knife tackle. One or more than one comb-shape stationary knives (11) are arranged on the inner wall of the cylinder along the direction of circumference. The comb of the stationary knife and the blades of the moveable knife tackle alternate with each other and match. The top of the cylinder is provided with a feed opening (8). The bottom of the cylinder is provided with a discharge opening (10). The utility model provides the hob pulverizing machines that can pulverize wet and cellulosic materials. The particle size of the wet and cellulosic materials is consistent. The utility model has high efficiency and simple structure. And caulking materials do not stick easily and inlet amount can be adjusted.

The invention relates to the technical field of a cutter for cutting machining, in particular to a two-edge pressure-type end mill. The two-edge pressure-type end mill comprises a cutter handle and an edge part which is arranged on the front end of the cutter handle, wherein the edge part is formed by a plurality of sections of spiral structures which are identical in structure and are connected with one another from front to rear, each spiral structure is formed by screwing a left-handed edge body and a right-handed edge body relative to the same axis for half circle, a plurality of spiral scale backs are uniformly arranged on the back surface of each spiral cutter body, a seamed edge of each spiral cutter body and a seamed edge of each scale back are respectively provided with a cutting edge, a spiral cutter withdrawing groove is formed between the two spiral cutter bodies, the seamed-edge side edges of all the spiral cutter bodies form a spiral cutting edge of the two-edge pressure-type end mill, and the front end edges, on the front end of the edge part, of the spiral cutter bodies are intersected to form a mill end edge. The two-edge pressure-type end mill is specially used for cutting a composite material, is free of layering, burrs and the like in the machining process, and is high in machining quality.

The invention relates to a machining technology of a nylon gear. The nylon gear comprises a metal shaft and a nylon ring arranged on the outer portion of the metal shaft in a sleeving manner. The machining technology comprises the specific steps of A manufacturing the nylon ring, B conducting press fitting, C locating a dedicated hobbing device, D conducting hobbing on the nylon ring and E removing burrs. The machining technology of the nylon gear has the following advantages that a traditional process of conducting hobbing on the nylon ring firstly and then conducting press fitting is changed, and it is avoided that pressure stress and cutting force generated during hobbing cause deformation in the nylon ring and then influence follow-up press fitting; by the adoption of the process of conducting press fitting firstly and then conduct hobbing, press fitting is facilitated, and the internal strength of the nylon gear is guaranteed at the same time; during press fitting, a heating pressfitting manner is changed, so that it is avoided that thermal stress is generated in the nylon ring; and by forming a stress release groove, when the metal shaft vertically penetrates through the nylon ring, the stress in the nylon ring is effectively released, and it is avoided that stress concentration influences the internal structural strength of the nylon gear.

The invention relates to a vibration auxiliary roller type magnetorheological polishing device and method, and belongs to the field of ultra-precision machining. A Z-axis motion system is connected with a base platform by screws, and an X-axis motion mechanism is connected with the Z-axis motion system by screws; a Y-axis motion mechanism is connected with the base platform by screws, and an XY-axis vibration device is connected with a cushion block of the Y-axis motion mechanism by screws; and a polishing mechanism is connected with the X-axis motion mechanism by screws, and a magnetorheological fluid circulation system is connected with the polishing mechanism by screws. The magnetorheological polishing device has the advantages that the distribution of abrasive particles is more uniform, and the direction of polishing force can be changed through vibration, so that the distribution of the polishing force is more uniform; new scratches are avoided while scratches of the last working procedure are removed, so that the polishing accuracy is improved; the utilization rate of magnetorheological polishing fluid is improved, and the cost is saved; and heat dissipation is benefited.

The invention discloses a cutter for razor nets of razors. The cutter comprises a cutter bit holder, outer cutter bits and inner cutter bits. The outer cutter bits are used for cutting outer circular grooves, the inner cutter bits are used for cutting inner circular grooves, the outer cutter bits and the inner cutter bits are positioned at the same end of the cutter bit holder, main cutting edges are arranged on the outer cutter bits and the inner cutter bits, radial gaps are formed among the outer cutter bits and the inner cutter bits, and lateral blades are further arranged on the outer cutter bits and the inner cutter bits. The cutter has the advantages that the razor nets can be machined by the aid of the cutter and a machining and lathe turning method, and two circular grooves in each razor net can be simultaneously machined; the synchronism of each two corresponding cutter bits can be guaranteed owing to the fact that the two cutter bits are positioned on the same cutter bit holder; the lateral blades are used for scraping the side walls of the grooves while the grooves are cut, accordingly, follow-up machining can be omitted after the grooves are completely cut, the cutter is favorable for improving the groove cutting precision, and the machining efficiency can be obviously improved.

The invention discloses a machining method for a tungsten alloy target material, which comprises the steps of providing a semi-finished product of the tungsten alloy target material and carrying out finish machining on the semi-finished product of the tungsten alloy target material, wherein in the finish machining step, the plane of the tungsten alloy target material is machined by a PCBN (Polycrystalline Cubic Boron Nitride) face mill, and the side face of the tungsten alloy target material is machined by a tungsten steel end mill. By adopting the machining method for the tungsten alloy target material provided by the invention, the arris defect in the machining process is avoided, the machining of the tungsten alloy target material with complex curved surface can be realized, and the problems of long machining cycle and low production efficiency are solved.

The invention discloses an ultra-precision machining method of cerium-lanthanum alloy. The method comprises the following steps of, (1) Carrying out nanocrystallization treatment on the surface of thecerium lanthanum alloy : a nozzle is utilized to impact the surface of cerium-lanthanum alloy by cavitation jet bubbles, generating plastic deformation of the crystal, and realizing crystal pulverization on the surface of the material to nano-scale; and (2) Carrying out trace cutting on the surface of the cerium-lanthanum alloy subjected to nanocrystallization treatment on the surface by adoptinga single-point diamond machining tool and a machining process. According to the method disclosed by the invention, the processing stability of the cerium-lanthanum alloy can be improved; meanwhile, spontaneous combustion is inhibited, and the surface and sub-surface damage generated when the cerium-lanthanum alloy is subjected to traditional precise cutting is reduced; a compact layer is generated, the oxidation corrosion process is hindered, and the surface cleanness is improved.

The invention discloses a machining method for an assembling surface of a dehumidifying blade, belongs to the field of machining methods, and aims to solve the problems that the profile tolerance of ablade profile is poor, a bench worker is required to eliminate a gap during assembly, the gap is reproduced when the end surface of a blade crown is assembled again through a beveling procedure and the welding quality is affected due to high probability of bowing and deformation when two ends are clamped in the machining process of the conventional dehumidifying blade. According to the machiningmethod, the clamping mode of an existing machining method for the assembling face of the dehumidifying blade is changed, the machining technological process is correspondingly changed, the margins oftwo-end technological sections are reserved when a workblank is selected, the two-end technological sections are clamped and machined through a clamp during machining, and therefore the defects of anexisting workpiece two-end clamping mode are effectively overcome. The machining method is mainly used for machining and manufacturing the assembling face of the dehumidifying blade.

The invention discloses a large-cutting-depth turning and milling composite rotary blade used under a heavy-load condition, belongs to the technical field of heavy machining, and can solve the problems that when a large special-shaped forge piece of a water chamber end cap is subjected to heavy cutting, due to relatively large cutting depth, a cutter is subjected to a dynamically-changed mechanical impact effect, consequently the cutter is stressed unevenly, and therefore phenomena such as abrasion, tipping and breakage are generated; and meanwhile, a large amount of cutting heat is accumulated in a cutting contact area in the cutting process, and the problems such as blade-chip adhesion between the cutter and the cutting chips caused by poor heat dissipation conditions are solved. The cutting edges of the blade are negative chamfered cutting edges; and every two adjacent negative chamfered cutting edges have arc edge transition there-between; cylindrical micro-pit textures arranged triangularly are arranged near an arc edge; the side surface of a square protruding platform at the upper surface of the blade and rake faces form arched chip breaking grooves; a trapezoid-like bump isarranged at the intersection position of the rake faces of the blade; each rake face is provided with a water drop-shaped bump; a major flank and a minor flank of the blade are each provided with a micro-groove texture; and the geometric center of the blade is provided with a fastening screw hole used for being connected with a turning tool bar or a facing cutter. The large-cutting-depth turning and milling composite rotary blade provided by the invention is suitable for turning and milling composite machining which adopts the water chamber end cap as a typical large-size forge piece.

The invention discloses a photoelectric glass cutting machine, relates to the field of glass cutting machinery, overcomes the defects of low efficiency, high consumption and low precision in the prior art, and provides important equipment which can improve labor productivity, cut a plurality of glass different in specification and size, reduce raw material consumption, improve working efficiency and reduce production cost. A to-be-cut raw glass sheet is large in size and to-be-cut glass is required to be thinner and thinner. Through computer automation control and mutual cooperation of three shafts, cutting is uniform in force, stable, quick and small in noise, and a cutting effect cannot be replaced with that of all conventional glass cutting equipment. Especially for ultrathin glass cutting, any shape can be cut, so that the working efficiency is greatly improved.

A blade holder for cutting machines includes a blade head held on a raising and lowering device and having an adjustment mechanism for a circular blade that is held on the blade head. The adjustment mechanism for the movement of the circular blade between a cutting position and a ready position, is provided with an adjustment piston rod having an adjustment piston that is guided in a chamber of the blade head housing and can is adapted to be moved by compressed air. The adjustment piston rod is biased by a compression spring into the ready position of the circular blade. The piston surface of the adjustment piston has a cross-sectional area that is configured such that as the path of the adjustment piston in the direction of adjustment increases, the piston surface that is acted upon by compressed air increases.

The invention discloses a bionic self-adaptive pressure equalizing driving vibration reduction PDC drill bit. A novel driving vibration reduction drill bit is designed by using bionic technology. In the working process, a PDC blade moves up and down automatically according to the changing of hardness of a rock stratum, a hydraulic piston rod is pushed to move and gas in a high-pressure gas chamberis compressed, the gas in the high-pressure gas chamber absorbs the vibration energy of the PDC blade and compresses for heat dissipation, hydraulic oil in hydraulic cylinders absorbs the vibration energy of the PDC blade through the damping action and conducts the vibration energy of the PDC blade in a thermal mode, and the purpose of vibration reduction for the drill bit is achieved. The hydraulic cylinders are connected with each other, cutting force of the PDC blade is ensured to be equal, the occurrence of the regenerative cutting effect is avoided, and the possibility of vibration occurrence is reduced.