279results about How to "Solve size" patented technology

The invention discloses a dual-channel convolution neural network semantic segmentation method sensitive to small targets. The method comprises the following steps: a Caffe depth learning frame is used to build a non-weighted learning network and a weighted learning network; for the two-channel network, the corresponding semantic segmentation model is obtained by two-stage training. The output scoring charts of two channels are obtained by two semantic segmentation models, and the output scoring charts of two channels are fused by different model fusion algorithms, and the optimal model fusionalgorithm is selected according to the specific evaluation index. The test image is segmented according to the semantic segmentation model and the selected optimal model fusion algorithm. The invention can ensure that on the premise that the overall segmentation accuracy of the data set is better, the invention is more sensitive to the small target area existing in the image.

The invention discloses a three-layer fabric and a tatting technique thereof. Side openings at both sides of the cloth width of the three-layer fabric are tatted into a single layer, a surface layer and a liner layer comprise foundation tissues and jacquard or pattern tissues, the foundation tissue of the surface layer is tatted by surface warp and surface weft, the jacquard or pattern tissue is tatted by liner warp and liner weft, the foundation tissue of the liner layer is tatted by the liner warp and the liner weft, the jacquard or pattern tissue is tatted by the surface warp and the surface weft, and a middle layer comprises a layer of middle weft and is clamped and fixed by a binding tissue in a complete tissue; at the junction of the foundation tissue and the jacquard or pattern tissue, surface-liner connection and liner-surface connection are carried out to form the binding tissue; the tatting technique comprises seven procedures of fabric design, warp beaming, loom tacking, tatting, desizing, softening and water washing, adopts a set of surface weft yarn system, a set of middle weft yarn system, a set of liner weft yarn system and two sets of warp yarn systems for tatting,and the tatting sequence is the surface firstly, the middle secondly and the liner thirdly or is reverse; and the invention solves the problem that the prior art is difficult to tatt a fabric which can be directly used for producing an air-conditioning bedding and has the required thickness, and has obvious use value and economic value.

The invention discloses a turboramjet combined engine based on knocking combustion. Along the air flow direction, an adjustable central conical body is positioned at the forefront end of the combined engine, and surrounds into an adjustable air intake channel with a shell; the downstream of the adjustable central conical body is connected with an air intake device of a preposed turbine combined pulsation knocking engine; the upstream of an air pressing machine of the preposed turbine combined pulsation knocking engine is provided with an adjustable inlet guiding blade; an engine shell of the preposed turbine combined pulsation knocking engine surrounds into an annular air duct with the shell; and an adjustable plate is positioned at an expanding pressure buffer chamber between the air duct and the preposed turbine combined pulsation knocking engine. By the turboramjet combined engine based on knocking combustion provided by the invention, the problems of long size, great weight, complex structure, many components, and the like of a complete machine are solved, and simultaneously the propulsive performance of the turboramjet combined engine based on the knocking combustion is improved.

The invention discloses a six-degree-of-freedom parallel micro platform which comprises a fixed platform body and a movable platform body. The lower surface of the movable platform body is evenly provided with three sets of fixing bearing bases, and each fixing bearing base is connected with the fixed platform body downwards in a transmission mode through two branch chains, namely, the three sets of the bearing bases and six branch chains are arranged between the fixed platform body and the movable platform body. According to the six-degree-of-freedom parallel micro platform, the fixed platform body is fixed to the installation end face at the tail end of a macro robot through a micro platform installation hole, a tail end actuator is fixed to the movable platform body through a gripper installation hole in the movable platform body, the size is small, the weight is low, rigidity and precision are high, six-degree-of-freedom precise trimming of space postures of a workpiece in the assembly process is achieved, and the aim of precise assembly is achieved.

The invention discloses a span-adjustable bending test clamp with a positioning function, and belongs to the technical field of aircraft structure bending tests. The clamp comprises two clamp upper fulcrums, two clamp lower fulcrums, an upper clamp guide rail platform, a lower clamp guide rail platform and an acting barrel. The upper clamp guide rail platform and the lower clamp guide rail platform are provided with sliding rails respectively and provided with scales in the direction of the sliding rails. Threaded holes are formed in the sliding rails. The clamp upper fulcrums and the upper clamp guide rail platform are in sliding connection and are fixed through bolts. The clamp lower fulcrums and the lower clamp guide rail platform are in sliding connection and are fixed through bolts. The lower clamp guide rail platform is fixed to a test machine loading frame through a test machine lower chuck. The upper clamp guide rail platform is fixedly connected with the acting barrel through a test machine upper chuck. The problems that when large-load and large-deformation bend tests are carried out, the span of clamp fulcrums cannot be adjusted, and a clamp cannot adapt to test piece size changes or meet design requirements are solved.

The invention discloses a near-net forming method of the 3D braided fiber reinforced metal-based composite material, and belongs to the technical field of advanced composite materials. The method is characterized in that a vacuum air pressure infiltration preparation technology based on a liquid binder is adopted to assist in accurately controlling the shape and the size of a 3D braided fiber preform structure; in the 3D weaving process of the fiber preform, a liquid binder is adopted to accurately fix and shape the 3D braided fiber preform, then the size precision of the 3D braided fiber reinforced metal-based composite material is accurately controlled through the impregnated graphite mold of the embedded fiber preform, and deformation and local fiber polarization of the 3D braided fiberpreform in the infiltration process are prevented. The prepared 3D braided fiber reinforced metal-based composite material has high dimensional accuracy and excellent mechanical properties, the near-net forming of the 3D braided fiber reinforced metal-based composite material is realized, batch industrial production can be realized, the near-net forming method has a wide application prospect in the fields of aerospace, national defense, military and the like.

The invention discloses a bearing type RV speed reducer, and belongs to the technical field of speed reducers. The speed reducer comprises a pin wheel housing, an installation frame is arranged in the pin wheel housing in a rotary mode, the installation frame is provided with two cycloid gears in transmission connection with the pin wheel housing through needle rollers, the installation frame is rotatably provided with a power input shaft, the power input end of the power input shaft extends out of the installation frame, the power input shaft is provided with two eccentric drive wheels which penetrate through the centers of the two cycloid gears respectively and are matched with the corresponding cycloid gears, the installation frame is rotatably provided with at least two positioning shafts which are symmetric to the rotation center of the power input shaft, and each positioning shaft is provided with two eccentric transmission wheels which penetrate through the two cycloid gears respectively and are matched with the cycloid gears. Power center input and first speed reduction are achieved. Compared with the prior art, the bearing type RV speed reducer reduces the number of power input shafts and use of sun gears and planetary gears, manufacturing cost is low, transmission is reliable, machining and installation are convenient to achieve, and service life is prolonged.

The invention provides a heat treatment method of magnesium-containing cast aluminum lithium alloy. The heat treatment method comprises a ternary solution treatment step and a slow heating ageing treatment step which are carried out in sequence. By a reasonable optimized ageing treatment process and a method for slowly heating the alloy to the ageing temperature, the volume fraction, the size and the distribution of main strengthening phases (Al3Li, Al2CuLi and Al2Cu) of the alloy are controlled. Compared with the traditional ageing treatment process, the heat treatment method of the magnesium-containing cast aluminum lithium alloy has the characteristics that uniform growing of Al3Li and separation of an Al2Cu (theta') can be promoted, and heterogeneous nucleation and growing of a S(Al2CuMg) phase and a T1(Al2CuLi) phase are promoted; and by the slow heating ageing process, the plasticity of the magnesium-containing cast aluminum lithium alloy is greatly improved while the strength of the cast aluminum lithium alloy is improved.

The invention discloses an experiment device used for researching effects on fish behaviors imposed by light and the application thereof. The experiment device comprises a water tank, a double-layered sleeve, a transparent waterproof glass reinforced plastic lampshade , an LED lamp pipe set, a motor, a circuit control system and a camera. According to the invention, by arranging a PVC cylinder of the double-layered sleeve, the experiment is carried out when fish freely swims in an experiment water tank, so via light transmitting holes in the PVC cylinder, experimental fish can freely swim in and out of the cylinder, and an ideal habitat is provided for the experimental fish, thereby simulating the free choices to light wave length and illuminance of the fish in natural sea and industrial aquaculture conditions in a more real manner. Thus, data deviation caused by harmful effect to the fish behaviors by improper structure and operation is avoided. Via the experiment device, many kinds of experiments on effect on fish behaviors imposed by light can be well finished, and the experiment device can satisfy many experimental objectives and requirements for researching effect on fish behaviors imposed by light.

The present invention provides the making process of homogeneous superparamagnetic polymer microballoon. Nanometer Fe3O4 grain prepared in coprecipitation process has its surface coated with oleophilic layer to form hydrophobic Fe3O4 magnetic fluid, and the magnetic fluid is dissolved in hydrophobic olefin monomer and oil soluble initiator via stirring to form homogeneous dispersive oil phase fluid. The oil phase fluid is crushed and dispersed into homogeneous oil drops in a spouting suspension polymerization process so as to form homogeneous O/W suspension in water phase. Under certain polymerizing temperature, oil drop is cured fast and constant temperature polymerized into homogeneous size superparamagnetic polymer microballoon. The superparamagnetic polymer microballoon has size of about 10 micron, specific saturation magnetic intensity of 15-20 emu/g, homogeneous magnetic content, stable chemical property and latent application in biological separation.

The invention provides a punch forming method of a thin-wall end socket. The method comprises the following steps of 1, cutting a non-ferrous metal plate to obtain an end socket plate, and cutting a steel plate to obtain an upper steel plate and a lower steel plate; 2, putting the end socket plate between the upper steel plate and the lower steel plate, and welding the upper steel plate and the lower steel plate into a whole plate along a circular arc; 3, heating the whole plate; 4, carrying out punch forming on the heated whole plate to obtain an entire end socket; and 5, removing the upper steel plate and the lower plate to obtain the thin-wall end socket of which the wall thickness is 0.5-3.0mm. The punch forming method is novel in technique, reliable and practical, and advanced in process. Two steel plates are adopted to clamp the end socket plate in the middle; the thin-wall end socket is punched and formed by a common die; the problems of large size, thin wall and large molding difficulty of lined end socket of chemical equipment can be effectively solved; the quality and the yield of the thin-wall end socket are improved; and the production cost is greatly reduced, and the economic benefit is obviously improved.

The invention discloses a middle-sized rock servo control true triaxial test device, which comprises a top plate, a base plate, a positioning pillar arranged between the top plate and the base plate, a top force transmission member, at bottom force transmission member, an axial jack arranged under the top force transmission member, a lateral arrow, an upper axial arrow, a lower axial needle arrow, a displacement sensor, a measuring bar matching with the displacement sensor, a computer, a servo control unit, a pulley fixed on the axial jack, a supporting frame for supporting the pulley, a lateral counter-force steel frame arranged surrounding the top of the bottom force transmission member, and a plurality of lateral jacks evenly arranged on periphery of the lateral counter-force steel frame. The device provided by the invention adopts three-dimensional load independent servo control, and can conduct true triaxial test on complex stress path, acquire data automatically and obtain a whole process stress-strain curve.

The invention discloses a method for preparing natural-cellulose based magnetic porous carbon. The method comprises the steps: firstly, soaking natural cellulose into a strongly-alkaline solution, carrying out activation for 0.5 to 24 hours, then, carrying out water washing until the activated cellulose is neutral, carrying out filtering, carrying out drying, then, putting the activated cellulose into a metal salt solution with a catalytic action, carrying out stirring for 0.5 to 24 hours, carrying out filtering, and carrying out drying, so as to obtain a cellulose/metal salt mixture precursor; and calcining the obtained cellulose/metal salt mixture precursor for 0.5 to 12 hours at the temperature of 400 DEG C to 1,000 DEG C in a reducing atmosphere, naturally cooling the calcination product to room temperature, thereby obtaining the natural-cellulose based magnetic porous carbon. According to the method, the raw materials are cheap and readily available, the equipment and procedures are simple and are easy in operation, and the method is pollution-free, is low in cost and facilitates industrialized and large-scale production; and the prepared composite material has properties of both magnetic nano-metal materials and porous carbon materials, so that the requirements of wave absorbing materials on electromagnetic wave dissipation capability and impedance matching are excellently met, and the electromagnetic wave absorption property is excellent.

The invention relates to the technical field of mechanical detection and particularly relates to a method for achieving multi-station measurement element calculation through a coordinate measuring machine. According to the method, the principles of multi-direction detection, unchangeable spherical center relative position and 6-point location are used, and a public coordinate system establishing method is used, accordingly, the problem of calculation of size and shape position tolerance among elements measured by coordinate parts in different stations is solved, the problem that parts exceeding measuring machine stroke cannot be detected on the coordinate and need to select larger-stroke coordinate is solved.

A programmable three-dimensional human body modeling and human body measurement system and a method thereof relates to three-dimensional model or image operation which is used for computer graphics and especially suitable for human body measurement and clothes CAD based on a human body characteristic. A human body model definition unit is connected to a three-dimensional human body grid database and a human body characteristic model database. A human body characteristic information algorithm tool library management unit is connected to a human body characteristic model database and a basic algorithm tool library. A human body measurement rule template management unit is connected to the basic algorithm tool library and a human body measurement rule database. A three-dimensional human bodygrid data analysis measurement unit is connected to the three-dimensional human body grid database and the human body measurement rule database. A user can define a human body characteristic identification rule and a dimension measurement rule through man-machine interaction operation. Simultaneously, the measurement rule defined by the user can be applied to different individualities. Three-dimensional human body scanning input, intelligent human body characteristic point identification, human body part dimension measurement and three-dimensional virtual human form construction are combined together.

The invention relates to a vertical polarization directional-printing filtering antenna, which comprises a three-layer structure, wherein the middle layer is a medium layer; the front side of the medium layer is an upper-surface metal layer (1); all the back of the medium layer is a metal layer which is called a lower-surface metal layer; one end of the upper-surface metal layer (1) is connected with a microstrip line (4); the microstrip line (4) is connected with a SIW (Substrate Integrated Waveguide) transmission line by a microstrip transition line (5); the SIW transmission line is provided with an SIW inductive window filter coupling window (8) formed by a metallized through hole (7) and with an SIW inductive window filter resonant cavity (9); the SIW transmission line is connected with a crossfeed microstrip patch array by a graded-index microstrip line (6); and the crossfeed microstrip patch array is formed by the feeding of a metal patch (2) by a metal connecting line (3). The antenna is easy to manufacture, has high machining precision and is especially suitable for high frequency, such as a Ku waveband.

The invention discloses a rotary telescoping fork. The rotary telescoping fork comprises a supporting seat, a fork body, a first driving mechanism and a second driving mechanism, wherein the fork bodycomprises a fixed fork body, and a multi-stage telescopic fork body which is glidingly connected to the fixed fork body; the fixed fork body is rotatably arranged on the supporting seat; the first driving mechanism is arranged on the fixed fork body and is connected to the multi-stage telescoping fork body, and the multi-stage telescoping fork body is driven to telescope relative to the fixed fork body through the first driving mechanism; the second driving mechanism is arranged on the supporting seat and is fixedly connected to the fixed fork body, and the fork body is driven to rotate relative to the supporting seat through the second driving mechanism. Additionally, the invention also discloses an AGV. The AGV comprises the abovementioned disclosed rotary telescoping fork. With the adoption of the rotary telescoping fork and the AGV, goods with different sizes can be forked, and moreover, the goods conveying quality can be effectively ensured.

The invention discloses a grapheme silicon-based solar cell which comprises a back electrode, wherein a monocrystalline silicon slice is arranged on the back electrode, a silicon dioxide layer is arranged on the monocrystalline silicon slice and is of an annular structure with a through hole, grapheme films are arranged on the surface of the silicon dioxide layer and the surface of the monocrystalline silicon slice exposed from the through hole of the silicon dioxide layer, and a grid line electrode is arranged on the surface of the monocrystalline silicon slice exposed from the through hole of the silicon dioxide layer. The invention further discloses a manufacture method of the grapheme silicon-based solar cell. The grapheme silicon-based heterojunction cell regulates the size of a potential barrier of a grapheme silicon-based schottky junction through the grid line electrode, composite effect of electric charges on the silicon face is reduced, separation and transmission efficiency of charge carriers is increased, photoelectric conversion efficiency of the cell is increased, and the problem that the photoelectric conversion efficiency of the existing grapheme silicon-based solar cell is decreased along with increase of the device size is solved.

The invention discloses aqueous graphene slurry and a preparation method thereof. The aqueous graphene slurry comprises aqueous dispersion liquid and a graphene material dispersed in the aqueous dispersion liquid, wherein the aqueous dispersion liquid contains a surfactant, and the mass content of graphene is 0.2 to 12%. The preparation method for the aqueous graphene slurry comprises the following steps: with a graphite oxide solid or an expandable graphite solid as a raw material, performing expansion treatment to prepare expanded graphite; immersing the expanded graphite in an aqueous stripping solution for infiltration treatment to obtain a mixture containing the expanded graphite; subjecting the mixture containing the expanded graphite to high-speed shearing or ultrasonic treatment toremove the aqueous stripping solution and obtain a wet graphene material; and adding the wet graphene material in aqueous dispersion liquid, and carrying out high-speed shearing to obtain aqueous graphene slurry. The aqueous graphene slurry prepared by using the method of the invention can be applied to the fields of electroconductive and heat-conductive coatings, anticorrosive coatings, batteries/supercapacitors and the like.

The invention relates to an optical element damage detecting device and method based on polarization imaging. The optical element damage detecting device comprises a light source as well as a light beam expanding system, a linear polarizer, a detected optical element, an imaging system, a CCD detector and a processing computer which are arranged sequentially along the light source, wherein the detected optical element and the CCD detector are located on an object plane and an image plane of the imaging system respectively, and an output end of the CCD detector is connected with an input end of the processing computer. According to the optical element damage detecting device and method based on polarization imaging, linearly polarized light is used for illuminating the optical element, the polarization CCD detector receives scattered light S and direct transmission light T of a damage point of the optical element, mutually orthogonal linear polarization images are obtained, the direct transmission light is filtered out by means of the difference of the orthogonal linear polarization images, images of the damage point of the optical element are enhanced, and the measurement problem that the optical element image detecting method cannot give consideration to image resolution, edge location accuracy, large-sized damage information and the like simultaneously is solved.

The present invention relates to a styrene-base wood-like material formula, wherein the styrene-base wood-like material comprises, by weight, 100 parts of general purpose polystyrene, 20-40 parts of high impact resistance polystyrene (HIPS), 10-15 parts of a styrene butadiene rubber, 2-5 parts of an inorganic filling material, 0.5-1.5 parts of a foaming agent, 0.5-3 parts of a cell regulator, 0.2-0.5 part of an ultraviolet absorber, 0.5-3 parts of a lubricant, 0.4-0.7 part of a wood aroma agent, 0.7-1.3 parts of a dispersing agent, and 0.5-2 parts of a coloring agent. According to the present invention, compatibility between the main material and the auxiliary material is avoided, and the problems of large size difference, uneven distribution and the like of the cells in the traditional wood plastic wood-like material are solved so as to further improve water resistance and moisture resistance of the wood-like material, reduce material density and brittleness, improve mechanical strength and prolong a service life.

The invention discloses a wide view field imaging structure for recombining stabilized platform functions and a control method of the wide view field imaging structure. The wide view field imaging structure comprises a base, a transverse roll ring frame, a pitching ring frame, a transverse roll shaft motor, a pitching shaft motor, a 45-degree compensating mirror and an imaging instrument. A stabilized platform is recombined to the wide view field imaging structure, a classical PID three-ring control algorithm in the control field is adopted, wide view field swing imaging in the wing expanding direction and forward image motion compensation in the flying direction are achieved, the stabilized platform is configured to the imaging instrument, and the limit problems of the instrument weight and the design dimension caused by a general stabilized platform are effectively solved.

The invention discloses a static pressure blister test fine loading control method, which comprises the following steps of: connecting two organic glass containers (the internal diameters are R1 and R2, and the R1 is less than or equal to the R2) with graduated scales by using a communicating pipe, firmly adhering a substrate of a sample to be detected and the upper top of the small container to close the upper space of the small container, and then injecting liquid with color into the large container, wherein because of gravity, the fluid flows into the small container through the communicating pipe to compress air in the small container to generate an air pressure (namely uniform load) acted on a coating film, and the purpose of fine loading control can be fulfilled by finely controlling the injection speed and the injection quantity of the liquid so as to realize layered control (namely blister size control) between the coating film and the substrate. The method solves the problems of difficult loading control in the conventional fluid static pressure loading method and dissolution, humidity and the like caused by direct contact of the fluid and the coating film, and can utilize accurate mechanical solution.

The invention relates to a method for protecting metal or alloy in a local atmosphere in the laser cladding and forming processes. The method comprises the steps that a metal or alloy powder bunch is conveyed by inert carrier gas to move on the machining surface along with a focused laser beam; at least one layer of inert protective gas is formed on the periphery of the metal or alloy powder bunch; and the inert protective gas comprises first inert protective gas, and the first inert protective gas surrounds the periphery of the focused laser beam. According to the method, the inert protective gas is formed on the periphery of the focused laser beam so that the problems that in the forming process of parts, the size is limited, the cost is high, a cladding and forming system is difficult to move and the like can be solved. The invention provides the method for forming and repairing the on-site parts. Compared with the prior art, the method has the advantages of being convenient, rapid and economical.

The invention provides a one-turn absolute encoding disc and pertains to the photoelectric inspection technology. The disc comprises transparent and non-transparent code stripes that are arranged in alternative way. The encoder taking the disc as core uses a linear array CCD as a receiving and dividing element, one CCD window contains 7-8 graduations. By an acquiring card, the signals output by CCD are sent into a computer, by two-valued processing, the number of 0 and 1 contained in each CCD window are obtained, an integral 7 numbers are combined together. The group of the current location is obtained by looking up the table of group code; program is written according to the angle-positioning arithmetic and by using advanced computer language VB. In this way, the value of the rotation angle can be obtained. Wherein, the table of group code is established based on the codes obtained.

The invention discloses a drug-loading microacupuncture needle, a drug-loading microacupuncture needle paster, a microacupuncture needle system for electrically adjusting and controlling drug release,and a preparation method of the drug-loading microacupuncture needle, and belongs to the technical field of releasing of drugs loaded by a microacupuncture needle. The drug-loading microacupuncture needle comprises a microacupuncture needle base, one or more microacupuncture needle bodies formed on the microacupuncture needle base, conductive polymer nanometer doping bodies doped in the microacupuncture needle bodies and microacupuncture needle drugs doped in the conductive polymer nanometer doping bodies, wherein the microacupuncture needle bodies are used for puncturing the skin to transport the conductive polymer nanometer doping bodies into the skin; and the conductive polymer nanometer doping bodies are configured to respond to electric stimulation sent by a driving power source device to release the microacupuncture needle drugs. Through the adoption of the drug-loading microacupuncture needle disclosed by the invention, a plurality of technical problems that in the prior art, coating in a coating microacupuncture needle is easy to come off, the coating microacupuncture needle is not ideal in drug release controllability, complex in preparation, difficult in control of the dimension of microacupuncture needles, poor in skin adhering performance and the like are synchronously solved.

The invention relates to the preparing method of a high-intensity heat-resistant aluminum iron alloy part. Firstly, the alloy components are proportioned according to the weight percentage, i.e. iron 4.0 to 6.0 percent, copper 3.0 to 5.0 percent, zinc 0 to 4.0 percent, manganese 0.3 to 0.7 percent, magnesium 0.2 to 0.5 percent, titanium 0 to 0.25 percent, zirconium 0 to 0.4 percent, boron 0 to 0.008 percent, impurities less than or equal to 1.2 percent and the rest is aluminum. Secondly, the alloy is melted, refined with or without modification processing and solidified to be an ingot blank through an electromagnetic stir or molded into an ingot blank under a heating temperature of 670 to 690 DEG C and during a heat-preserving duration of 20 to 40 minutes. Thirdly, a secondary heating is conducted to the ingot blank under a heating temperature of 620 to 640 DEG C and during a heat-preserving duration of 20 to 40 minutes. Being in a semisolid state, the ingot blank is extruded into an aluminum iron alloy part under a pressure of 20 to 100 MPa. The invention has the advantages that large iron-rich phases are broken up by utilizing an electromagnetic shearing force or the ingot is cast near the phase line to obtain a well-distributed fine non-dentrite structure and then after a semisolid extruded molding, the alloy structure is changed notably compared with the cast structure and the alloy performance is evidently improved. The invention has simple technique as well as low cost and provides a new approach for the structure refinement method of strengthening the phase of similar alloys.

The present invention provides locating device and method for biochip sample application. The locating device includes one image pick-up device and one locating regulation system. The method of locating the biological probe in the biochip carrier accurately includes the following steps: A. providing a biochip sample application locating device including one image pick-up device and one locating regulation system; B. marking the reference point on the biochip carrier before sample application; C. picking up and recording the image of the reference point with the image pick-up device; D. calculating the first sample applying position with the locating regulation system and applying sample; E. picking up the image of the sample applying position; F. performing feedback operation and correcting the next sample applying position and applying sample; and G. repeating the steps E and F until completing all the sample application.

The invention relates to an electric spark punching machine capable of punching conical holes, which comprises a lifting rod, an electrode positioning support and a base, wherein a guide sleeve is arranged above the electrode positioning support, a vertical guide hole which is matched with the lifting rod is arranged on the guide sleeve, a clamping head for fixing an electrode is arranged at the lower end of the lifting rod, and the guide sleeve is linked with the electrode positioning support by revolute joints. The electric spark punching machine adopts the electrode deflection way and can process the conical holes without replacing the electrode, thereby effectively solving the shortcomings of low processing efficiency and difficult control of size of through holes of the conical holes, greatly improving the working efficiency, saving the production cost and simultaneously reducing the production of waste products.

The invention discloses a large forming size mobile high-efficiency smoke treatment selective laser melting device which mainly comprises a laser galvanometer system, an intelligent monitoring system,a powder spreading and smoke blowing and absorbing integrated device, a forming table system and a powder recycling system. The laser galvanometer system is used for the implementation of an energy source and a scanning path of the device. The forming table system includes a substrate, a base table, a preheating system, a micro motion leveling mechanism, a powder sealing device and a base table motion control and feedback system. The base table motion control and feedback system achieves vertical motion of the base table and the substrate and real-time feedback of the position. The powder recycling system comprises a powder collection bin and a powder collection tank for real-time recycling of the powder. The intelligent device solves the problem that the selective laser melting forming size is small, and the smoke is difficult to treat effectively in the forming process. The intelligent device can achieve large size selective laser melting forming and effective real-time treatment ofthe smoke to ensure high-quality forming of parts.