48results about How to "High quality and efficient processing" patented technology

The invention relates to a curved-surface machining cutter track planning method using cutting force fluctuation as a constraint, which belongs to the technical field of the high-efficiency milling processing for complicated curved-surface parts. According to the method, on the basis of cutter location point data obtained by an equal-residual-height method, an optimal feeding ling spacing value and an optimal feeding step length are determined, thereby realizing a cutter location grid unit division based on a cutter location grid node. With fitting of a cutter location grid unit plane, a cutter location grid node Z coordinate is determined by combining an adjacent associated cutter location grid unit. And then a cutter location grid node normal vector is calculated; and with the cutting force fluctuation during the processing process as a constraint, a curved-surface processing cutter track is planned by using the cutter location grid node as a cutter location point according to a fundamental principle of normal vector included angle minimization between adjacent cutter location points, so that the high-quality and high-efficiency curved surface processing is realized. The method has the high adaptability to the local complicated geometrical features; and high-quality and high-efficiency curved surface processing is realized.

The invention discloses a tuned passive damper with two degrees of freedom. The tuned passive damper with the two degrees of freedom comprises mass blocks, sliding blocks, elastic-damping units and rigidity adjusting bolts; grooves are formed in the two ends of each mass block, every two sliding blocks are arranged in one groove and are tightly attached to a thin plate in the corresponding elastic-damping unit, and each thin plate is provided with a sliding groove corresponding to the groove in the corresponding mass block. Each sliding block is located by the corresponding rigidity adjusting bolt penetrating through the corresponding groove and the corresponding sliding groove, so that the distance between the two sliding blocks on the same side of each mass block is adjusted through the corresponding bolts, and rigidity adjustment of the damper is achieved. Besides, a friction plate with the adjustable angle is arranged between the corresponding sliding blocks and the side wall of a base of the corresponding elastic-damping unit, the contact area between each friction plate and the corresponding mass block is changed by adjusting the angle of the corresponding friction plate, and therefore the damping ratio of the damper is adjusted. The tuned passive damper with the two degrees of freedom has the advantages of being simple in structure, convenient to implement and low in cost, having no pollution to the environment, being capable of effectively lowering vibration in a cutting process, and achieving high-efficiency and high-quality machining of parts.

The invention discloses a numerical control and reducing ultrasonic vibration device for machining a complicated inner cavity of a deep hole. The device comprises a driving subassembly, a sliding subassembly, a knife sheath, a reducing boring rod subassembly and an ultrasonic transduction subassembly, wherein the ultrasonic transduction subassembly is mounted in the knife sheath and the knife sheath is mounted on a knife tower; a sliding block of the sliding subassembly is mounted on a base of the driving subassembly and a guide rail of the sliding subassembly is mounted on a box of a machinetool; and the reducing boring rod subassembly is connected with the sliding subassembly. According to the numerical control and reducing ultrasonic vibration device provided by the invention, the machining efficiency and the machining precision of the complicated inner cavity of the deep hole are improved by utilizing a numerical control and reducing way. The application range of ultrasonic vibration boring is enlarged.

The invention discloses a composite energy field heating assisted turning and milling integrated device and an application method thereof. The device comprises a numerical control lathe worktable, anelectric hating assisting device and an industrial personal computer; a three-jaw chuck is arranged on the left side of the numerical control lathe worktable; a workpiece is transversely and fixedly mounted in the center of the three-jaw chuck; a milling machine frame is fixedly mounted on the right side of the numerical control lathe worktable, and is longitudinally and rotationally assembled with a milling machine main shaft; and a milling cutter is longitudinally and fixedly mounted at the bottom end of the milling machine main shaft, and is positioned on the upper side of the workpieces. The device solves the machining problems of difficult-machined materials, such as complicated structural parts of particle reinforced composite materials, ceramic, high-temperature alloys and quenchedsteel, so that the technology of heating turning and milling is widely applied; and the device also can realize coupling of laser heating and electric heating composite energy fields to provide theoretical support for further research of deformation mechanisms of materials under composite energy fields.

The invention provides a processing device and process for ultraviolet-assisted chemical mechanical polishing of a diamond wafer. The device comprises a polishing device, a polishing solution supply device and an ultraviolet irradiation device, wherein a polishing disc is made of JGS1 quartz glass; the polishing solution supply device is positioned above the polishing disc; and the ultraviolet irradiation device is positioned below the polishing disc. According to the processing device and process, ultraviolet light is directly irradiated to the surface of the single crystal diamond wafer, and a proper oxidizing agent is combined, so that the wafer is efficiently oxidized and modified; an oxidation modification layer is mechanically removed through the polishing disc and abrasive particles; in a processing process, the wafer and the polishing disc rotate separately to generate relative motion; and meanwhile, ultraviolet irradiation and polishing solution feeding enable a photochemical modification effect and a mechanical polishing effect to be alternatively performed, so that photochemical mechanical processing can be performed on the wafer, and high-quality and high-efficiency processing of single crystal diamond can be realized under the action of multi-energy field coupling.

The invention provides a contact deliquescene polishing device for a plasma modified liquid film. The device comprises an object carrying block, a heavy object, a polishing pad, a polishing disc, a first hose, a second hose, a plasma generating device and a micro-mist generating device, wherein the polishing pad is mounted on the upper surface of the polishing disc, and the object carrying block is arranged above the polishing disc; and the heavy object is arranged on the object carrying block, wherein the object carrying block and the heavy object are used for applying pressure to a deliquescent crystal, through holes are formed in the positions, corresponding to the deliquescent crystal, of the polishing disc and the polishing pad, and the plasma generating device and the micro-mist generating device correspondingly communicate with the through holes through the first hose and the second hose. The invention further provides a polishing method for the plasma modified liquid film. Thecontact deliquescene polishing device and polishing method for the plasma modified liquid film has the beneficial effects that the problems that micro-pits and residual organic matters are difficult to clean caused by residing of liquid drops and the like in an existing deliquescence polishing method can be solved.

The invention discloses a vehicle agricultural grain packaging apparatus, and belongs to the field of farming machinery and equipment. The vehicle agricultural grain packaging apparatus is characterized in that the apparatus includes a grinding and crushing device and a track travelling packaging device. The grinding and crushing device includes a material grinding inlet, a grinding motor, a grinding rotating shaft, a grinding tooth saw, a grinding chamber, a powder outlet and a water cooling chamber. The material grinding inlet is arranged above the grinding chamber. The powder outlet is arranged under the grinding chamber. The track travelling packaging device includes a power conveyer belt, a packaging hung slide rail, a lifted bag changing device, telescopic lifting arms and a finishedbag discharging device. The power conveyer belt is arranged below a power outlet. A barrier plate is arranged on the power conveyor belt. The other end of the packaging hung slide rail is arranged above the finished bag discharging device. The telescopic lifting arms are arranged on the packaging hung slide rail. A nail plate is arranged on each telescopic lifting arm. The nail plates fix a lifted bag. The vehicle agricultural grain packaging apparatus can crushing, grinding and packaging threshed grain, is intensively designed in structure and reasonable in process layout, and can carry outprocessing with high quality and efficiency.

The invention discloses a real-time adjustable coil winding structure. The structure comprises a front guiding rack and a wire guiding rack, the front guiding rack is provided with a guiding tube for guiding a tube to pass through, the front guiding rack is arranged on a lifting mechanism, the lifting mechanism is fastened to a translation mechanism, the guiding tube protrudes toward the wire guiding rack, the wire guiding rack is provided with a wire clamp for stabilizing a coil and an inner rack positioned in the center of the wire guiding rack, a coaxial winding tube protruding toward the guiding tube is arranged at the center of the inner rack, the tube wall of the winding tube is provided with a through hole corresponding to the wire clamp, and the wire guiding rack is connected with a rotating motor. The structure allows a plurality of coils to be wound simultaneously and the positions of the fed tube corresponding to the coils to be adjusted in real time, and realizes high-quality and high-efficiency tube screen tube layer processing.

The invention provides a processing method of fully ripe xinhui citrus peel filled with Liupao tea, and belongs to the technical field of processing of tea leaves. The processing method comprises thefollowing steps of preparing semi-finished Liupao tea and preparing the fully ripe xinhui citrus peel filled with Liupao tea. The semi-finished Liupao tea is prepared through the following steps of performing fixation on fresh leaves, performing primary twisting, performing heaping for fermentation, performing secondary twisting, and performing drying. The fully ripe xinhui citrus peel filled withLiupao tea is prepared through the following steps of treating fully ripe xinhui citruses, loading tea, performing primary steaming, performing cold fermentation, performing secondary steaming and performing ageing. The processing method is simple in technology, easy to operate, and high in production practicality. According to the method disclosed by the invention, high quality and high efficiency of processing of the fully ripe xinhui citrus peel filled with Liupao tea can be guaranteed, particularly the color, fragrance, taste, and shape and the quality of tea grounds of the fully ripe xinhui citrus peel filled with Liupao tea can be improved, the yield for making tea can be increased, and the quality of the fully ripe xinhui citrus peel filled with Liupao tea can be improved.

The invention belongs to the technical field of machining and specifically relates to a method for machining an AF1410 steel part before quenching. According to the method, high-quality and high-efficiency machining is carried out on the AF1410 steel part before quenching strengthening through a shallow cutting-quick feeding equal-height layer reduction cutting process; when a deep cavity structure exists in the part, a ring cutting and axial layered rough milling-finish milling machining method is adopted so as to solve the problems of vibration of a cutting tool and chatter marks on the surface of the part. Through the method for machining the AF1410 steel part before quenching, the machining efficiency is improved by 3-4 times, the cutting temperature is effectively reduced, the servicelife of the cutting tool is prolonged, the quality of the part is improved, the problems that excess cutting temperature, serious work hardening, poor part quality and the like are solved, and high-quality and high-efficiency machining of the AF1410 steel part is realized.

The invention discloses a method for predicting the burr length of a fiber reinforced composite material machined by a fillet cutter, and belongs to the technical field of composite material machining. In the implementation process of the method, the method comprises the following steps of: firstly, measuring the geometric dimension and shape contour data of the fillet cutter, and establishing a cutter-workpiece contour geometric model; establishing a cutter fillet contour geometric model in a fiber arrangement surface on the basis, then considering a cut-out side fiber direction angle theta,establishing an interaction geometric model of a cutter fillet in the fiber arrangement surface and an unbroken fiber, solving the first breaking position of the unbroken fiber on the basis, and calculating the maximum theoretical burr length. According to the method, the burr length prediction model in the fiber reinforced composite material processing process is established according to the burrgeneration mechanism of the fiber reinforced composite material, and the method is comprehensive and complete in related content and easy to operate.