69results about How to "Guaranteed production accuracy" patented technology

The invention belongs to the technical field of a quartz wafer tool, and particularly relates to a production process of a large-diameter ultrathin quartz wafer. The invention discloses a production process of a large-diameter ultrathin quartz wafer. The production process comprises the following steps of A, cutting quartz crystal lump by utilizing a fret saw; B, grinding the quartz crystal lump by adding green carbon silicon sand by utilizing a double-sided grinding machine; C, coating one surface of a wafer with protective paint by utilizing a spin coater; D, adhering the wafer onto an optical cement plate; E, grinding the optical cement plate with wafers being adhered on the upper surface and the lower surface; F, polishing the wafer with two sides being well ground by utilizing a double-sided polishing machine; G, placing the wafer into a wafer box after the wafer is qualified in inspection. By adopting the production process, the precision of a product of the processed quartz wafer is guaranteed, the mass production of the large-diameter ultrathin wafer is realized, the production efficiency is improved, and the production of the large-diameter quartz wafer is realized.

The invention discloses a modular assembly type composite wall and a connecting mode thereof. A foamed cement core material is filled in the middle of a cold-formed thin-wall type steel framework; a self-leveling cement surface layer is bonded with the foamed cement core layer, and the self-leveling cement surface layer and the cold-formed thin-wall type steel framework are connected by a self-tapping bolt; and the cold-formed thin-wall type steel framework, the foamed cement core material and the self-leveling cement surface layer are connected to form the modular assembly type composite wall. Adjacent two modular assembly type composite walls are horizontally connected by a connector among wall modules. The modular assembly type composite wall and floor modules are vertically connected by a connector among the floor modules. The modular assembly type composite wall disclosed by the invention is a wall which is integrated with structural bearing, thermal insulation and decoration, is high in degree of integration and assembly, low in material cost, cheap in overall price and simple in configuration, and greatly saves labor cost.

The invention relates to the field of cigarette production, in particular to a novel cigarette production method applying a 3D (3-dimensional) printing technology. A novel cigarette comprises a cigarette stick and a filter tip stick, wherein the cigarette stick is formed by bonding tobacco powder ground by tobacco leaves through an adhesive. The production method of the novel cigarette provided by the invention comprises the following steps: producing the cigarette by utilizing the 3D printing technology, increasing the tobacco powder layer by layer in hierarchical processing and superstition solidification forming ways to generate a 3D entity cigarette, spraying the adhesive through a 3D printer according to the shape of each cross section designed in software, carrying out progression layer by layer and finally obtaining the cigarette stick which is formed by overlapping all the cross sections, so that the production precision is effectively ensured. Meanwhile, the treatment process of the tobacco leaves is simplified, the application scope of tobacco raw materials is broadened, the utilization rare of the tobacco raw materials is improved, and the wood gas of cigarette smoke is removed. The 3D printer used in the novel cigarette production method is smaller in size and is more economic, the relevant procedure of computer graphic data can be directly utilized to generate the cigarette, and the cost is saved while the production is convenient.

This invention discloses a kind of long-periodic optical fiber grating band filtering method , it adopts two long-periodic optical fiber grating LPFG-I and LPFG-II which mate and connect together, making mandrel absorber in the core place in the back face of LPFG-I; The light is divided into core mode and cladding mode after passing LPFG-I , the core mode is absorbed by mandrel absorber, And the cladding mode pass through the interface of two gratings, be transferred to LPFG-II and coupling reversely to the core mode in its grating area, finally returning to the core mode of LPFG-II, outputting from the back face of LPFG-II. This method has removed the routine core mode in LPFG but has made use of the cladding mode, only the light which according with the phase match conditional can pass trough the grating pair of the long-periodic optical fiber, forming a band filter. This invention keeps merit of the exist LPFG filter that no back reflecting , tuning capability is good , making up its deficiency, changing the 'band stop'type spectrum to 'bandpass' type spectrum , realizing the real long-periodic optical fiber grating band filter.

The invention discloses a two-sided milling fixture for blank forming molds. The two-sided milling fixture comprises a base, movable support clamping mechanisms, a movable centering mechanism and a middle fixed support clamping mechanism. The middle fixed support clamping mechanism is mounted in the middle of the base, the movable support clamping mechanisms are mounted at two ends of the base, and the movable centering mechanism is mounted between a fixed mechanism and a movable mechanism on the base. The two-sided milling fixture for the blank forming molds has the advantages that operation in processing parts is facilitated, adjustment during mold changing is facilitated, work time is saved, positioning precision is high, production precision is guaranteed, and process yield is increased. Since the two-sided milling fixture is a double-station fixture capable of processing two parts each time and the two parts share the same middle positioning and clamping device, cost is saved while processing efficiency is improved.

The invention relates to a soil texture particle content predicting method, and provides a complete soil property predicting technical scheme based on extrapolation technology. The optimal prediction data set is selected through the combination of the local soil-landscape model extrapolation technology and the cross validation mechanism, the universal digital soil cartography technical scheme that an extrapolation frame is universal for different research sample regions, the optimal extrapolation area is determined according to different data properties and uncertainty is analyzed by evaluating a local model is achieved through the extrapolation soil expert knowledge and quantitative evaluation prediction precision technology, and the method has wide industrial application prospects.

The invention discloses a sheet feeding machine. The sheet feeding machine comprises a base, feeding units and a six-axis robot, and is characterized in that the base is provided with at least two sets of feeding units; the base is provided with a mounting plate; the feeding units are mounted on the mounting plate; each feeding unit comprises a supporting mechanism, a conveying mechanism, a peeling mechanism and a waste disposal mechanism; and the six-axis robot is matched with the peeling mechanism. Through cooperation between the supporting mechanism, the conveying mechanism, the peeling mechanism, the waste disposal mechanism and the six-axis robot, sheet release paper is peeled, and products are transferred, the automation degree is high, the production efficiency is high, and the product production accuracy is ensured.

The invention discloses a method for installing distributed sensing optical fibers used for monitoring strain of a steel structure. The method includes the following steps that a plurality of optical fiber distribution monomers (14) are manufactured, wherein each optical fiber distribution monomer (14) comprises two magnetic bonding ends, a strain monitoring optical fiber section (10), a front section signal transmission optical fiber section (12) and a rear section signal transmission optical fiber section (13); the optical fiber distribution monomers (14) are sequentially connected in series, and optical fiber connectors are welded at the front end of the front section signal transmission optical fiber section (12) of the headmost optical fiber distribution monomer (14) and the rear end of the rear section signal transmission optical fiber section (13) of the backmost optical fiber distribution monomer (14) respectively; then the optical fiber distribution monomers (14) which are connected in series are fixed on the steel structure to be monitored, and then the two optical fiber connectors of the optical fiber distribution monomers (14) which are connected in series are connected to a test instrument. The method for installing the distributed sensing optical fibers is rapid, comprehensive and accurate.

The invention provides a modularized assembling-type cross-shaped cold-bending thin-wall profile steel combined wall and a connection method thereof. A cross-shaped cold bending thin-wall steel framework is filled with a thermal insulation layer. A wall face board and a cross-shaped cold bending thin-wall steel keel are connected together through tapping screws. The cross-shaped cold bending thin-wall steel framework, the thermal insulation layer and the wall face board form the modularized assembling-type cross-shaped cold-bending thin-wall profile steel combined wall. The cross-shaped cold-bending thin-wall profile steel combined wall and a common wall module are in horizontal connection realized through an inter-wall-module horizontal connection method. An upper cross-shaped cold-bending thin-wall profile steel combined wall and a lower cross-shaped cold-bending thin-wall profile steel combined wall are in vertical connection realized through an inter-wall-module vertical connection method. The modularized assembling-type cross-shaped cold-bending thin-wall profile steel combined wall integrates functions of structural load bearing and thermal insulation and has advantages of being high in integration and assembly degree and being suitable for industrial production and the like. Problems that field assembly and connection of joints of walls whose four faces are perpendicular to each other is poor in strength, high in difficulty and the mounting joints are difficult to process.

The invention relate to a grinding device for the profile tolerance and roughness of a large joint ball. The grinding device for the profile tolerance and roughness of the large joint ball is characterized in that the grinding device comprises a main motor (1), a spindle box (2), an internal swelling sleeve (3), a rotary swing support (4) and two grinding assemblies, the output end of the spindle box (2) is connected with the internal swelling sleeve (3), the rotary swing support (4) is arranged transversely, the two grinding assemblies are arranged on the rotary swing support (4) in a bilateral symmetry mode, and grinding sleeves (10) of the two grinding assemblies are located on the left side and the right side of the internal swelling sleeve (3) correspondingly. The grinding device for the profile tolerance and roughness of the large joint ball has the advantages that the production efficiency is improved, and the production precision is guaranteed.

The invention discloses a production process of a conical mud door. According to the production process of the conical mud door, an inverted conical tooling platform is arranged in an inner cavity, so that a conical panel can be positioned and fixed through the tooling platform in the production process of the conical mud door, the problem that an existing conical panel is separately fixed is solved, the production efficiency of the conical mud door can be effectively improved, and the production precision of the conical mud door can be preferably guaranteed. The production process of the conical mud door is used in the production field of dredge mud doors.

The invention discloses a broadband dual-polarized electromagnetic transparent antenna which is used for suppressing cross-band scattering interference among multiband antennas. The antenna is mainly characterized in that four oscillator arms are designed on a dielectric substrate, at least one nested opening resonance groove is etched in each oscillator arm, each nested opening resonance groove is composed of an inner opening resonance groove and an outer opening resonance groove, and the scattering suppression frequency band of the antenna is determined according to the size of the nested opening resonance grooves. Two relatively narrow scattering suppression frequency bands can be combined into a wide scattering suppression frequency band by adjusting the sizes of the inner opening resonance groove and the outer opening resonance groove so that broadband scattering suppression is realized, and in the scattering suppression frequency band, and scattering currents on the oscillator arms are mainly distributed near the nested opening resonance grooves in opposite directions. And a scattering field generated by the reverse scattering current can be self-counteracted so that scattering interference generated by the broadband dual-polarization electromagnetic transparent antenna on an antenna working in an action frequency band of the broadband dual-polarization electromagnetic transparent antenna is effectively inhibited, and an electromagnetic transparent effect is further realized.

The invention discloses a welding mechanical arm capable of preventing sparks from splashing. The welding mechanical arm comprises a base, a rotary workbench, mechanical arms, a drive motor, a transmission gear box, rotary chain wheel sets and a tail end welding gun. The rotary workbench is arranged on one side of the base. The mechanical arms are arranged at the upper end of the base, and the tail end welding gun is fixed to one end of one mechanical arm. The drive motor and the transmission gear box are arranged in the base. The rotary chain wheel sets are arranged at the hinged positions ofthe base and the mechanical arms. One end of the transmission gear box is connected with the rotary chain wheel sets. The invention further discloses a working method of the welding mechanical arm capable of preventing the sparks from splashing. The problem that personnel cannot approach to the mechanical arm due to the fact that sparks splash is solved; production problems can be found and handled in time in the work process; the work efficiency of the mechanical arm is improved; meanwhile, single motor drive is achieved; the space needed by a drive joint is reduced; the cost of a drive component is reduced; and the welding mechanical arm can adapt to the small-batch production environment and can be achieved in more fields.

The invention provides a variable-capacitance pressure sensor, which includes a double-layer flexible circuit board, a multi-layer ceramic capacitor and a soft conductive gasket. The multi-layer ceramic capacitor is arranged close to the soft conductive gasket. The double-layer flexible circuit board with a through hole or a gap is arranged between the multi-layer ceramic capacitor and the soft conductive gasket. The multi-layer ceramic capacitor is arranged above the through hole or the gap. The soft conductive gasket is arranged below the through hole or the gap. When the soft conductive gasket deforms under external pressure, the soft conductive gasket will pass through the through hole or the gap of the flexible circuit board and contact the ceramic medium of the multi-layer ceramic capacitor. When the external pressure changes, the contact area between the soft conductive gasket and the ceramic medium of the multi-layer ceramic capacitor will change, and the capacitance value between the soft conductive gasket and external electrodes connected into the multi-layer ceramic capacitor will change. The number of components is reduced, the production and assembly process is simplified, and the cost is reduced.

The invention discloses an automatic kiln-loading device and an automatic kiln-loading method for sanitary ceramics. The automatic kiln-loading device is arranged close to an inlet of a kiln, and comprises a bearing table, a conveying assembly, a bottom mat, and a carrying part, wherein the bearing table is flatly placed on a kiln car; ceramics to be sintered can be placed on the bearing table; the conveying assembly is used for transferring the ceramics to be sintered to the neighborhood of the bearing table; the bottom mat is placed on the bearing table and is used for bearing the ceramics to be sintered; and the carrying part is arranged between the conveying assembly and the bearing table, and is used for paving the bottom mat on the bearing table and carrying the ceramics to be sintered onto the upper surface of the bottom mat from the conveying assembly. The automatic kiln-loading device and the automatic kiln-loading method for the sanitary ceramics provided by the invention are simple in structure, reasonable in design and easy to implement; and workers have no need to carry out high-intensitive carrying and kiln-loading work under the harsh high-temperature environment, so that time and labor are saved, and the demand on mass production is achieved.

The invention discloses an intelligent laser edge banding machine which comprises an edge banding machine body, an intelligent industrial control screen, a pre-milling mechanism, a laser edge banding mechanism and a six-wheel fixed belt pressing and pasting mechanism are installed on the edge banding machine body from right to left, and the pre-milling mechanism, the laser edge banding mechanism and the six-wheel fixed belt pressing and pasting mechanism are electrically connected with the intelligent industrial control screen. According to the intelligent laser edge bonding machine, high-energy laser generated by the laser edge bonding mechanism is used for carrying out glue melting on the laser edge bonding belt with a functional sol layer, a glue coating mechanism is omitted, hot melt glue does not need to be used, and the functional sol layer on the laser edge bonding belt is rapidly melted before the laser edge bonding belt makes contact with a workpiece; the laser edge sealing belt is pressed on the workpiece through the six-wheel fixed belt pressing and pasting mechanism, so that the laser edge sealing belt can be used immediately after being started, waiting is not needed, and heat preservation is not needed. And meanwhile, glue melting is conducted through the laser edge sealing mechanism, cleanliness, neatness, environmental protection and no peculiar smell are achieved, one-time edge sealing is completed, other additional protection is not needed, the reject ratio of products is reduced, production precision is guaranteed, the thickness of workpieces is ignored, high-speed edge sealing can be dealt with, production efficiency is improved, and production cost is reduced.

The invention provides a precision milling system for fuselage skin. By means of installation, debugging and field application verification, the function of cutting the fuselage skin is realized whilesafety is guaranteed. With the adoption of the system, milling work of the fuselage skin can be completed efficiently and accurately, and manufacturing accuracy of an airplane product is guaranteed.Product precision requirements can be effectively met, product quality and stability are improved, labor intensity of an operator is reduced, and working efficiency is improved. Meanwhile, a supporting technology and experience are provided for allowance cropping of tube workpieces of the fuselage.

The invention relates to a tooth crown drill bit locked through two screws in a V-shaped positioning groove. The tooth crown drill bit comprises a drill rod, a tooth crown blade and the compression screws. A through main cooling hole is formed in the position of the axis of the drill rod. The left end of a working part is provided with two branch cooling holes. The main cooling hole and the two branch cooling holes form a Y-shaped internal cooling structure. The end face of the working part of the drill rod is provided with a blade mounting groove. The bottom of the blade mounting groove is provided with a V-shaped positioning surface used for positioning the tooth crown blade. The two sides of the blade mounting groove serve as blade mounting surfaces. A fastening screw hole used for being matched with the corresponding compression screw in a screwed mode is perpendicularly formed in each blade mounting surface. The right end of the tooth crown blade is provided with a V-shaped positioning surface matched with the positioning surface of the working part of the drill rod. The tooth crown blade is provided with stepped holes used for installation of the compression screws. The axis of each stepped hole is perpendicular to the corresponding blade mounting surface. The stepped holes are opposite to the fastening screw holes in position. The tooth crown blade is fastened onto the drill rod through the compression screws. The connection strength of the tooth crown blade and a cutter body is improved through in-groove locking.