233results about How to "Accuracy controllable" patented technology

The invention discloses a star-rotation type rotary device adopting a gate valve structure. The star-rotation type rotary device comprises a cylinder body and a main shaft, wherein a circular-barrel-shaped cavity is formed in the cylinder body; the main shaft is supported by cylinder body sealing end covers at the two sides of the cylinder body; a centre sun gear roller is sleeved on the main shaft; a gate valve groove is formed on the cylinder body along the centre line direction of the cylinder body; a gate valve plate is arranged in the gate valve groove; the gate valve plate is switched between a withdrawing status and an extending status; an annular piston space is formed by an outer cylindrical surface of the centre sun gear roller and an inner cylindrical surface of the cylinder body; a cylindrical planetary piston wheel is arranged in the annular piston space in a rolling manner; when the gate valve plate is in the withdrawing status, the planetary piston wheel passes through the gate valve plate; and when the gate valve plate is in the extending status, the far end of the gate valve plate contacts the outer cylindrical surface of the centre sun gear roller at the inner side surface of the annular piston space. According to the star-rotation type rotary deice adopting the gate valve structure disclosed by the invention, the difficulty of machining the cylinder body can be reduced, and the integral intensity of the cylinder body is improved.

The invention discloses a method for manually drilling a hole in a curved surface precisely in the normal vector direction. The method comprises the following steps that 1.1, a skin is installed on a framework, positioned and fixed; 1.2, a curved surface drilling jig is installed on the outer surface of the skin, connected with the framework in a positioned mode and fastened through a positioning pin; 1.3, a primary hole drill bushing is installed in a machining hole formed in the curved surface drilling jig; 1.4, the skin is drilled through from outside to inside in one time through a drill bit in the guide direction of the primary hole drill bushing; 1.5, the primary hole drill bushing in the step 1.4 is replaced with a hole expanding drill bushing, and a corresponding hole expanding drill bit is used for conducting step-by-step hole expanding and/or hole reaming till a finished hole is formed; 1.6, the steps from 1.3 to 1.5 are repeated for other machining holes; and 1.7, burr treatment is conducted on the machining holes. According to the method for manually drilling the hole in the curved surface precisely in the normal vector direction, the problem that the perpendicularity of the axis of the curved surface hole is difficult to control is solved through the curved surface drilling jig and the primary hole drill bushing, and the situation that a part is scrapped due to the fact that the perpendicularity of the machining hole is out of tolerance is greatly reduced.

A panty-hose machine is composed of a yarn feeding mechanism, a weaving mechanism and a batching mechanism. The panty-hose machine is characterized in that the yarn feeding mechanism is fixed through machine legs, a leg support is arranged on the bottom among the machine legs, the batching mechanism is mounted and fixed on the leg frame, a rack used for mounting the weaving mechanism is arranged on a top fixing frame of the machine legs, a plurality of frame rods are arranged between the upper portion and the lower portion of the rack, the weaving mechanism is mounted and fixed on the rack and is arranged above the batching mechanism, and a machine top yarn frame in the yarn feeding mechanism is supported at the top end of the upper portion of the rack through a plurality of stand rods. The panty-hose machine has the advantages that the panty-hose machine is novel in structure, more compact in structure combination, small in occupied space, light in whole machine weight, low in cost, simple in debugging, and high in safety and working efficiency, a machine table is more stable in running and precision, and the operation of technology changing is easy and convenient.

The invention relates to a weighing system having high precision quantification process. The system includes a first feeding mechanism which controls feeding to an initially set weighing value, and a second feeding mechanism which controls feeding to an object set weighing value. The second feeding mechanism includes a spherical spool part which is arranged inside a second feeding channel and conducts radial self-rotation around the second feeding channel. The spherical spool part is provided with a recessed part for receiving a material on the spherical surface most distant from a self-rotating shaft. The weight of the material received in the recessed part is smaller than the error range of the set weighing value. According to the invention, the system realizes fine feeding by rotating the spherical spool part, and when the object set weighing value is arrived, the spherical spool part immediately stops the rotation, and the error of the set weighing value is smaller than the weight received by the recessed part, and the weighing value that is within the set error range is realized. The process weighing control system enables the precision of the weighing process to be easy to control and has a precision which reaches the requirement for high precision of national industries.

A smelting-casting method for casting large-size TiAl-based alloy ingot without pores includes such steps as preparing consumable electrode of TiAl-based alloy by ISM technology, resmelting the TiAl-based alloy electrode and casting TiAl-based alloy ingot. It features high uniformity and large size.

The invention discloses a making process of a wind-power blade main model, which belongs to the technical field of wind-power blade molding. The process comprises the following steps of: 1) making a metal steel frame platform at the bottom; 2) laying a wood plate; 3) coating epoxy resin white carbon black filler on the surface of the wood plate, placing multiple EPS (Expandable Polystyrene) polystyrene solid foams according to the shape of the designed main model in a laminated way, and bonding and fixing the EPS polystyrene solid foams; 4) machining profiles of the EPS polystyrene solid foams; 5) pasting glass fiber reinforced plastic airtight layers on the machined profiles in the step 4); 6) detecting the vacuum degrees of the glass fiber reinforced plastic airtight layers; 7) uniformly spreading wood substituted epoxy resin layers on the surfaces of the glass fiber reinforced plastic airtight layers which satisfy the vacuum degree requirements, controlling the spreading thicknesses at about 15-35 mm and curing the wood substituted epoxy resin layers at normal temperature; and 8) machining the surfaces of the wood substituted epoxy resin layers; and then coating gel coat layers on the wood substituted epoxy resin layers and curing and molding the wood substituted epoxy resin layers to obtain the main model. The main model made by using the process disclosed by the invention has the advantages of high profile precision, easiness for construction operation, low making cost as well as contribution to promotion and application.

The invention discloses a multi-focus light spot energy homogenizing Fresnel lens. As the multi-focus light spot energy homogenizing Fresnel lens is obtained through decomposing and recompounding the traditional Fresnel lenses, the unevenness of the light spot energy of the Fresnel lens is reduced greatly, the quality of the light spot can be improved greatly, the uniform irradiation can be received by a solar battery, the generated transverse current is less, the internal consumption of the solar battery is reduced and the output capability of the solar battery is improved.

The invention relates to assembling equipment for a spring lockset, in particular to assembling equipment for a spring and a billiard sealer on a spring lock, which comprises a substrate, a punching device and a feeding device, wherein the punching device and the feeding device are installed on the substrate, the punching device comprises a punching frame, a punching cylinder, a punching-pin mould handle and a lockset clamp, the feeding device comprises a stepping motor, a linear guide rail, a spring billiard-sealer discharging device, an installing frame and a feeding cylinder, the feeding device also comprises a rotating mechanism and two rotary material-storing devices with the same structures, and the two rotary material-storing devices with the same structures are installed on a rotary disk; the two rotary material-storing devices with the same structures on the rotary disk are driven by a driving piece through a rotating shaft to rotate for 180 degrees and mutually replace positions. The assembling equipment for the spring and the billiard sealer on the spring lock has the advantages of novel structure and high machining efficiency and assembling precision.

The invention discloses a parallel driving vibration-assisted rotary turning device and method. The device comprises a flexible device platform, a first piezoelectric stack and a second piezoelectric stack. The first piezoelectric stack is installed on the flexible device platform through a first piezoelectric stack pre-tightening screw, and the second piezoelectric stack is installed on the flexible device platform through a second piezoelectric stack pre-tightening screw. A first capacitance displacement measurement baffle and a second capacitance displacement measurement baffle are connected with the flexible device platform through fastening screws correspondingly. A first capacitance displacement sensor and a second capacitance displacement sensor are correspondingly installed on a first capacitance displacement sensor clamping seat and a second capacitance displacement sensor clamping seat. By means of the parallel driving vibration-assisted auxiliary turning device and method, L-shaped straight panel flexible hinges are adopted, and therefore the beneficial effects that the structure is novel, flexibility is good, symmetric distribution is formed, the precision of micro-displacement movement is easy to control, and the rotation track in a tool movement platform space of the device is easy to control are achieved.

The invention provides a high-precision deep hole grinding electric spindle structure. The radial rigidity of a spindle is strengthened, vibration is reduced when a deep hole is ground, grinding precision is improved, the spindle is light and convenient and is simple in processing, and rotation precision can be controlled easily. The high-precision deep hole grinding electric spindle structure comprises the spindle and a sleeve, and is characterized in that the spindle consists of a front spindle and a rear spindle, the sleeve comprises a front sleeve and a rear sleeve, a grinding wheel structure is arranged at the front end of the front spindle, the front sleeve is sleeved on an outer edge annular surface of the front spindle, a stator is sleeved on an outer edge annular surface of the rear spindle, the rear sleeve is sleeved on an outer edge annular surface of the stator, the front sleeve is a section-variable sleeve, the rear end of the front spindle is connected with the front end of the rear spindle by a coupler, a bearing is disposed among a front end annular surface and a rear end annular surface of the front spindle and the inner wall of the front sleeve, and a front end annular surface and a rear end annular surface of the rear spindle are provided with bearings.

The invention discloses a method for preparing a force response photonic crystal material on the basis of a nano molding technique. The method comprises the following steps: etching a main template according to pre-designed photonic crystal structure parameters, preparing an elastic polymer soft template with inverse nano-grade patterns, and by taking the soft template as a secondary template, 'copying' the patterns on the main template into a high -elasticity gel matrix layer in a 'high-fidelity 'manner in a mode of three-step pattern transfer so as to fix the position of crystal lattice of photonic crystal; filling the crystal lattice with a viscous polymer so as to obtain a single-layer high-elasticity gel-viscous polymer composite layer with a photonic crystal structure, and implementing a layer-by -layer embossing method,thereby obtaining the force response photonic crystal material. Compared with the prior art,the method disclosed by the invention has the characteristics that the process is simple, the procedure time is short, process parameters are easy to control, the templates can be repeatedly used, and a product is high in precision grade, stable and reliable in quality and relatively low in cost, and the like.

The invention discloses a three-dimensional stratum modeling method based on a geological map-cut profile. The method comprises the steps: S1, editing the map-cut profile, and completing the setting of basic parameters needed by modeling; s2, discrete sampling is conducted on the stratum boundary and the inner and outer areas, and discrete distribution of stratum attributes in space is obtained; s3, performing interpolation calculation on the stratum three-dimensional space discrete points to generate a three-dimensional space stratum attribute data field; s4, contour surface extraction is carried out from the three-dimensional space stratum attribute data field, and a three-dimensional contour surface of the stratum is obtained; s5, repeating the steps S2 to S4 to obtain three-dimensionalcontour surfaces of all stratums; s6, spatial splicing is conducted on the surfaces of the three-dimensional contours of all the stratums, and three-dimensional stratum modeling is completed. According to the method, the problems of complex contour matching, bifurcation, corresponding triangulation network connection and the like in a two-dimensional contour reconstruction method are avoided, anda high-precision three-dimensional vector geologic model can be obtained; the method is suitable for stratum modeling under any complex condition, the modeling efficiency is high, and the applicationrange is wide.

The invention discloses a cloud-edge collaborative platform architecture for basin water environment water ecological intelligent management. The cloud-edge collaborative platform architecture comprises a cloud end, an edge end, a terminal, a data center, a model center, a control center and a customer service center, wherein the data center, the model center, the control center and the customer service center have relatively independent functions. The cloud end is connected with the data center, the model center and the control center and is responsible for top-layer simulation computation. The edge end is connected with the data center, the model center and the customer service center, obtains the data uploaded by the terminal, performs data extraction, cleaning, fusion and transmissionto form an edge-end ecological environment big database, receives the data generated by the cloud end, and arranges a local simple model to satisfy differentiated services of basin intelligent management. The cloud end and the edge end realize cloud-edge collaborative computing by taking a message center as middleware. The terminal is connected with the data center and the customer service center,has various sensors and users of different departments, carries out multi-source heterogeneous data acquisition and edge service release in combination with the Internet of Things technology, and achieves three-dimensional perception, comprehensive acquisition and directional output of information.

The invention discloses a processing technology of a siliconized graphite product. The processing technology of the graphite product comprises the following steps: 1) firstly obtaining a graphite blank having a smooth surface by coarsely processing and fine processing a graphite blank matrix; reserving a processing allowance of 0.05-0.5mm; 2) implementing a graphite siliconization process to the graphite blank by a vacuum gas phase deposition reaction method; forming a siliconized graphite coarse product having a silicon carbide layer on the surface thereof; 3) soaking the siliconized graphite coarse product obtained by the step 2) into a melting sodium hydroxide for removing the free silicon therein; and 4) finally obtaining a required siliconized graphite product by rinsing, drying and machining sequentially. The processing technology of the graphite product employs the gas phase deposition reaction method to implement the silicon carbonization process to the fine processed graphite surface. The surface of the graphite blank is smooth and beneficial to a uniform permeation of the silicon; in the subsequent machining, the damage to the silicon carbide layer formed on the surface is small; the reserved machining allowance is small, thus the subsequent machining is easy, the precision of the siliconized graphite product is easy to control, and the rate of the finished products is higher than 98%.

The invention relates to a method for manufacturing a double-sided hollow flexible circuit board. The method adopts manufacturing technology of laminating materials, and comprises the following steps: firstly, performing die cutting by a punching mould to remove an insulation layer which is not needed by a hollow part; then, performing lamination and pressing on needed copper foil, bonding material and insulation material by a vacuum laminator; and finally, adopting a routine flexible double-sided plate manufacturing process to realize conduction and form a pattern. The double-sided hollow flexible circuit board manufactured by the method has the advantages of reliable connection of the hollow part, low defective index, high production efficiency, stable welding performance, reliable work and the like, overcomes poor phenomena that a traditional production process has poor consistency of products, high defective index, low machining speed, fussy machining process, poor welding and easy falling off of the hollow connecting part and the like, really ensures the quality of the products and truly achieves ultimate effects of persistent high efficiency and stability.

The invention discloses a linear vibration motor which comprises a stator assembly, a vibrator assembly and an elastic supporting part, wherein the stator assembly comprises a shell with an accommodating cavity and a magnet positioned in the accommodating cavity and combined and fixed with the shell; the magnet comprises a hollow part; the vibrator assembly comprises a coil arranged on a concentrating flux plate and mass blocks surrounding the periphery of the coil; the hollow part extends along a vibrating direction of the vibrator assembly; when the vibrator assembly vibrates, the coil vibrates along with the vibrator assembly and is inserted into the hollow part of the magnet; the elastic supporting part is configured to suspend the vibrator assembly in the accommodating cavity of the shell; and the concentrating flux plate further comprises a through hole which corresponds to an inner cavity of the coil and runs through the upper surface and the lower surface of the concentrating flux plate. According to the linear vibration motor provided by the invention, the structure can utilize magnetism of the magnet to the greatest extent; utilization efficiency of the coil for magnetic force lines of the magnet is promoted; an electromagnetic driving force of the motor is promoted; and the assembling process is simple and convenient, and assembling accuracy is high, so that the motor can obtain better vibration performance.

The invention discloses an overhead-type fault indication positioning terminal, and the terminal comprises a capacitive sensor which is disposed in an overhead line electric field, wherein the capacitive sensor is connected to a CPU of the terminal through a conditioning circuit. The invention also discloses a ground voltage measurement method for the terminal. The method achieves the real-time measurement of the ground voltage of an overhead line, captures the change of the ground voltage of the overhead line, and provides basis for the determining of a grounding fault of a line.