1411results about How to "Play a positioning role" patented technology

The invention discloses a welding tool for production of an automobile seat framework. The welding tool for production of the automobile seat framework comprises a base (1), a feed clamping device, two side section clamping devices and a supporting bar clamping device, wherein the feed clamping device is provided with a sleeve (14) in advance and pushes the sleeve to the position above a slope (50) of the bottom section of a U-shaped bent pipe (2) in the automobile seat framework, the two side section clamping devices are used for fixedly clamping two side sections of the U-shaped bent pipe (2), and the supporting bar clamping device is used for fixedly clamping a first supporting bar (3) and a second supporting bar (4) so that the two ends of the first supporting bar (3) and the two ends of the second supporting bar (4) can be in fixed lap joint to the two side sections of the U-shaped bent pipe (2) correspondingly. By the adoption of the structure, the U-shaped bent pipe, the first supporting bar and the second supporting bar can be fixedly clamped, and therefore the welding tool for production of the automobile seat framework can guarantee fixed clamping of the U-shaped bent pipe and the welding precision and the product consistency of the first supporting bar and the second supporting bar during automatic welding.

The present invention belongs to the computer vision field, and relates to a point of regard detection method based on the multilayer information fusion. The point of regard detection method is characterized by obtaining a bottom-layer information detection result diagram by the bottom-layer information, such as the colors, etc.; utilizing the spatial position to obtain a center prior diagram; extracting a candidate target frame and the CNN depth features of an original image, utilizing a bag-of-word model to encode, sending the encoded visual features in a trained multi-instance RMI-SVM classifier to mark, and carrying out the Gaussian smoothing on the center of the frame and then carrying out the weighted stack according to the mark of the target frame to obtain a detection result diagram of a target grade; extracting the features describing the overall content of the original image itself, training a softmax regression device to obtain the fusion weight, and adopting the weight to carry out the weighted fusion on the above result diagram. The point of regard detection method of the present invention comprehensively utilizes the information at the three aspects of the color contrast, the significant target and the spatial position, adjusts the proportion of various information aiming at different images, and can have a better detection rate aiming at the image containing various content.

The invention belongs to the technical field of vehicle maintenance, and relates to a floating type counterpoint vehicle-mounted storage battery automatic replacing station which comprises a vehicle positioning and lifting mechanism for positioning and lifting an electric vehicle and a battery locking and unlocking mechanism for positioning and replacing a vehicle-mounted storage battery. The battery locking and unlocking mechanism comprises an ejecting assembly, a positioning assembly arranged on the ejecting assembly and a plurality of locking and unlocking assemblies arranged on the positioning assembly. The ejecting assembly comprises a lifting table for fixing the positioning assembly. The positioning assembly comprises a floating support, and at least two positioning pins arranged onthe upper side of the floating support. The floating support is hung below a lifting table through four chains. The positioning assembly can float by means of the chains, the position of the vehicle-mounted storage battery can be automatically fine adjusted according to the actual conditions of a chassis when the vehicle-mounted storage battery is arranged on the electric vehicle chassis, and theembedment failure is avoided.

The invention discloses a circumcision locator and a disposable circumcision stapler. The circumcision locator comprises a fixed sleeve with circular structure. The size of the outer edge of the bottom end of the fixed sleeve is matched with the size of the inner ring of the disposable circumcision stapler, the fixed sleeve is connected with a handle by a connecting part, the connecting part is provided with an accommodation space for accommodating glans penis, the bottom end of the fixed sleeve is extended to arrange a locating part, and the outer end surface of the locating part is in inclined structure. The side surface of the inner ring and the outer ring of the disposable circumcision stapler matched to use is in inclined structure. By adopting the structure, the circumcision locator and the disposable circumcision stapler which is matched with the circumcision locater can be specially used to push the inner ring in order to sheath the glans penis and accurately locate when the disposable circumcision stapler is used to carry out the circumcision.

The invention discloses an involvement type prosthetic heart valve stent with barbs and a preparation method thereof, and belongs to the technical field of involvement type medical devices. The stent is an elastic stent which can stretch or retract in a radial direction, and comprises a tubular structural part and a skirt-shaped open structural part; the diameter of the skirt-shaped open structural part is greater than that of the tubular structural part; the tubular structural part and the skirt-shaped open structural part are coaxially and fixedly connected; barks are also arranged in the stent; the barbs extend from the tubular structural structure to the skirt-shaped open structural part and are tilted to the outer side of the stent. The stent can extend and retract in the radial direction so as to facilitate the mounting, the transporting and the releasing in involvement treatment; the stent structure is matched with the physiological structure of a natural valve, has a certain self-positioning function, and is convenient to position and release quickly and accurately; the barbs can penetrate into the tissues around the valve after the heart valve is planted into a specific position so as to achieve a positioning effect; displacement and perivalvular leakage are not easily caused after the valve is released.

The invention provides disk type test tube cleaning equipment. The disk type test tube cleaning equipment comprises a second water inlet pipe, a water outlet pipe of an annular water tank, the annularwater tank, a water spray pipe, a rotary shaft, a driven gear, a driving gear and test tubes, wherein two bearings which are rotatably inlaid in the top end and the tail end of a transmission shaft at the center of the driven gear are correspondingly mounted in bearing mounting holes which are formed in a bearing supporting base and in a cleaning cylinder base plate in a penetrating mode separately, and a sealing ring is inlaid in the bearing mounting hole formed in the cleaning cylinder base plate in the penetrating mode so that cleaning water can be sealed. A rubber fixing ring is fixedly inlaid in the inner wall of each test tube fixing ring, and the test tubes are inserted into the test tube fixing rings and fixedly pressed through friction of the rubber fixing rings in the test tubefixing rings. According to the disk type test tube cleaning equipment, the rotary shaft is arranged, and under the rotation effect of the rotary shaft, bristles which are evenly distributed on brush sleeves in an array mode can wipe and clean the inner walls of the test tubes, and thus residual substances or dirt on the inner walls of the test tubes can be completely cleared away.

A whole oil tank structure of an airplane comprises a plurality of oil tank inner containers made of composite materials, a front beam, a rear beam, an upper wall board and a lower wall board; the oil tank inner containers are arranged between the upper wall board and the lower wall board; the front beam and the rear beam are connected with the front edges and rear edges of the upper wall board and the lower wall board respectively; adjacent walls among the oil tank inner containers are bonded to structural ribs of a wing; the oil tank inner containers are sealed containers prefabricated through composite materials; and the outer walls of the oil tank inner containers are in bonding curing with the adjacent upper wall board, the lower wall board, the front beam and the rear beam.

The invention relates to a self-positioning joint between fabricated concrete filled steel tubular columns and further relates to a construction method of the self-positioning joint between the concrete filled steel tubular columns. The self-positioning joint comprises the upper prefabricated column and the lower prefabricated column. The bottom of the upper prefabricated column and the top of thelower prefabricated column are welded together; upper column concrete is poured in the upper portion of the upper prefabricated column, and lower column concrete is poured in the lower portion of thelower prefabricated column; and cement-based grouting materials are poured in both of the lower portion of the upper prefabricated column and the upper portion of the lower prefabricated column. Theself-positioning joint is simple in structural design, safe, reliable, efficient, convenient, rapid and easy to mount, position and construct.

The invention relates to a bending machine capable of bending layer by layer, which comprises a frame; a rotating roller and a rotating roller driving mechanism which drives the rotating roller to rotate are arranged on the frame; an upper pressure plate which rotates with the rotating roller is arranged on the rotating roller; a lower pressure plate is arranged below the upper pressure plate; a clamping control device for controlling the lower pressure plate and the upper pressure to clamp heat exchangers with spacing is arranged between the lower pressure plate and the upper pressure plate; the technical key points are as follows: a lifting mechanism is arranged on the frame; a lifting platform is arranged on the lifting mechanism; a movable bending following platform which can slide on the lifting platform and can be inserted into the adjacent two layers of radiating tubes of the heat exchangers and a pushing mechanism which pushes the movable bending following platform to move are arranged on the lifting platform; and a positioning mechanism which positions the heat exchangers is arranged on one side of the lower pressure plate on the frame. The bending machine can bend precisely, has a simple process and can bend a plurality of layers of heat exchangers layer by layer.

The invention relates to a humidifier relating to the technical field of household appliances. The mainly adopted technical scheme is as follows: the humidifier comprises a water channel component, a water tank and a water level control device, wherein the water channel component comprises a base and a water channel arranged on the base; the water tank is arranged on the water channel; a water inlet used for injecting water into the water tank is formed in the upper end of the water tank; a draining hole used for draining water in the water tank into the water channel is formed in the bottom of the water tank; the water level control device comprises a floater device and a water level control switch; the floater device is arranged in the water channel; the water level control switch is arranged under the draining hole; when the water level in the water channel is lower than a preset working water level, the draining hole is opened by the water level control switch under the interaction of the floater device and the water level control switch; when the water level in the water channel is higher than the preset working water level, the draining hole is closed by the water level control switch under the interaction of the floater device and the water level control switch. The invention aims to provide the humidifier with a watering function, a simple structure and relatively low cost.

The invention discloses an electric power distribution cabinet, which comprises a device base, wherein the lower part of the device base is provided with universal wheels, one side of each universal wheel is provided with a positioning bolt, the upper part of the device base is provided with a main turntable in a rotated manner, the upper part of the main turntable is provided with a group of supporting columns, one side of the device base is provided with a driving gear, a rotating rod is arranged on the driving gear, the driving gear is engaged with the main turntable, the upper parts of the supporting columns are connected with a lower box body, a box body slideway is arranged on the upper part of the lower box body, the box body slideway is in sliding fit with a sliding rail arranged at the lower part of an upper box body, the side parts of the upper box body and the lower box body are each provided with baffle plate slideways, heat radiating holes are formed in the side parts of the upper box body and the lower box body, and the baffle plate slideways are in sliding fit with baffle plates. The electric power distribution cabinet is convenient to move, can rotate flexibly, has good heat radiating and moisture-proof functions, can accommodate more power accessories, and has higher applicability.

The invention relates to a branch slicing shredder. A shell and a motor are fixed on a base of the shredder, a round cutter I and a round cutter II are installed in the shell through a spindle, a jaw plate is fixed below the shell, hammer components uniformly distributed between the round cutter I and the round cutter II and a driving cutter are arranged in a stagger manner, an upper feed roller and a lower feed roller are installed on the main feed port of the shell, a main stationary knife is fixed below the main feed port, auxiliary moving cutters are uniformly distributed on the outer side surfaces of the round cutter II, a support plate is fixed below the side feed port of the shell, the motor is used for driving the spindle and the upper feed roller as well as the lower feed roller, and fan blades are installed in the shell through the spindle. According to the branch slicing shredder, the side plane of the round cutter II is used for locating so as to control the feeding length of a hard branch with large diameter, the moving cutters installed on the side plane of the round cutter II is used for planing and slicing, and both thick branches and thin branches can be fed smoothly through automatic regulation of the gap size of two feed rollers.

The invention relates to an assembly type container prefabricated house. The assembly type container prefabricated house comprises a frame, a bottom plate, a top plate and wall plates, wherein the frame comprises a bottom border, a top border and upright columns, the bottom border is formed by connecting bottom beams through corner pieces, and the top border and the bottom border are connected by the upright columns through the corner pieces; the bottom beams and top beams are made of a first profile, and the upright columns are made of a second profile; each corner piece comprises a main corner piece body, beam connecting parts formed at two side ends of the main corner piece body and an upright column connecting part formed at the upper end of the main corner piece body, and the beam connecting parts and the upright column connecting part can be inserted into end parts of the first profile and an end part of the second profile respectively and are connected with the first profile and the second profile respectively through fastening connection pieces; the bottom plate is erected on supporting folded walls of the bottom beams of the bottom border, the top plate is mounted on supporting folded walls of the top beams of the top border reversely, the lower ends of the wall plates are supported by the supporting folded walls of the bottom beams of the bottom frame and clamped between the bottom plate and the bottom beams, and the upper ends of the wall plates are connected with the lower parts of the supporting folded walls of the top beams through the fastening connection pieces .

The invention discloses a fabrication method of a rigid-flex board for preventing a gold finger of a flexible board from deviation. The fabrication method comprises the following steps of S1, carrying out cutting; S2, fabricating an inner-layer pattern, and fabricating a positioning pattern on a waste region at the side edge of a top end of a gold finger region on a flexible board at an inner layer, wherein the positioning pattern comprises three positioning points; S3, coating and laminating a protection membrane on a region, needed to be protected, of the flexible board at the inner layer; S4, carrying out laser cutting, respectively cutting positioning grooves at the two ends of the gold finger by the positioning pattern, and making the two ends of the gold finger to be directly formed; and S5, laminating the inner layer and an outer layer. According to the method disclosed by the invention, the inner-layer pattern is fabricated and the positioning pattern is simultaneously fabricated on the waste region at the side edge of the top end of the gold finger region, the two positioning grooves are cut at each of the two sides of the gold finger by positioning of the positioning pattern during the laser cutting process, the gold finger is then directly formed, so that the gold finger of the flexible board at the inner layer is already subjected to shape fabrication before lamination, the size precision of the gold finger is ensured, and the deviation of the gold finger is prevented.

The invention discloses an adaptive feeder for a 3D printer head. The adaptive feeder is composed of an elastic handle, a pedestal and a spring. The elastic handle is hinged on the pedestal, and the spring is arranged between the elastic handle and the pedestal. The elastic handle is composed of a handle, a bearing and an end cap. The pedestal is composed of a motor, a mechanism base and a wire feed roll. A wire material is arranged between the bearing and the wire feed roll. Under the action of the spring, the elastic handle drives the bearing to tightly press the wire material on the wire feed roll, and it is ensured that the position of the wire material is directly facing a pipework. The adaptive feeder provided by the invention has low sensitivity to mechanism abrasion and diameter size of the wire material, thus avoiding wire blocking, wire slipping and unstable extrusion force. The adaptive feeder has advantages of convenient feeding and returning operation, simple structure and low cost.

The invention relates to the technical field of aerospace industries, in particular to an aircraft cabin processing method and a bulging tooling used in the same. The method comprises the following steps: 1, blank blanking; 2, machining an excircle; 3, machining an inner hole, wherein the size of the machined inner hole is smaller than that of a nominal size; 4, using a tooling to perform bulging up to meet a required size. According to the method, the machining and the bulging processing are adopted, so that the precision requirements on the machining are greatly reduced, the production efficiency is improved, the consistency and the qualification rate of finished products are greatly improved, the manufacturing cost is relatively reduced, the cost is greatly reduced, and the economic efficiency is improved.

The invention discloses a planetary gear transmission which comprises a box, a planetary gear, a sun gear, an inner gear ring, a planetary gear shaft, a transmission shaft and at least two sliding bearings which are arranged on the planetary gear shaft in parallel in a sleeving mode in the axial direction and located between the planetary gear shaft and the planetary gear. The two sliding bearings are matched to form a sunken part; the sun gear is fixed to the transmission shaft, the sliding bearings are fixed to the planetary gear shaft or a planetary support or the planetary gear, and the sunken part limits axial motion of the planetary gear or a radial protruding portion of the planetary gear limits axial motion of the sunken part, so that the axial motion of the planetary gear is limited inside the sunken part or the radial protruding portion of the planetary gear shaft, and an axial load and a radial load of the planetary gear act on the inner wall face of the sunken part or the radial protruding portion of the planetary gear shaft; accordingly, the sliding bearings bear the axial load and the radial load of the planetary gear at the same time, the axial size and the weight of the transmission can be decreased, and the manufacturing and installing cost of the transmission is lowered.

The invention relates to a multipoint positioning auxiliary device. The multipoint positioning auxiliary device comprises a cylindrical base and a cylindrical indexing and positioning mechanism on the base. The indexing and positioning mechanism comprises an indexing disc and an aligning disc which can rotate relatively, the aligning disc is provided with a hemispherical positioning base, the positioning base is provided with a cross positioning groove penetrating through the hemisphere, a positioning wing groove is formed in the position, corresponding to the notch of the cross positioning groove, of the aligning disc, a spherical positioning groove is formed in the centre of sphere of the positioning base, a universal ball connected with a cylindrical scale pole is embedded in the spherical positioning groove, a positioning rod and a positioning wing are arranged between the universal ball and a scale pole body in sequence, the positioning rod is matched with the cross positioning groove, the section of the positioning rod is square, the positioning wing is matched with the positioning wing groove, and a positioning vernier which can slide along the scale pole body is arranged on the scale pole. The multipoint positioning auxiliary device has the advantages of being simple in structure, accurate in positioning, convenient to operate, store and carry and the like, multipoint positioning can be achieved conveniently and rapidly, operation is simplified, and working efficiency is improved.

The invention relates to a multi-angle nozzle for a cleaner, which comprises a nozzle holder. Water inlets, flow passages, and water outlets are formed on the nozzle holder; the water inlet is connected with a spraying rod; the flow passage is connected with a water inlet and a water outlet; a nozzle cage is arranged outside the nozzle holder; nozzle cores are internally installed in the nozzle cage; water spraying holes are formed on the nozzle core; and the water spraying holes are communicated with the water outlets. The nozzle is characterized in that the nozzle holder is in clearance fit with the nozzle cage; a positioning device is arranged between the nozzle holder and the nozzle cage; two or more nozzle cores are arranged in the nozzle cage and uniformly distributed according to the circumference, wherein, the sparing hole of one of the spray cores corresponds with the water outlet, injection angles of all spraying holes are different, and the injection diffusion angle is between 0 degree to 90 degrees. The nozzle has the advantages that an injection angle can be arbitrarily chosen according to requirements, so that the requirements of different pressures and cleaning areas can be met, and the application range is wide.

The high strength connecting process for TiAl base alloy charging turbine and steel shaft includes the following steps: A. machining outer thread in the TiAl base alloy charging turbine and machining inner thread sleeve in the steel shaft and axial technological through hole; B. painting AgCuNiLi brazing paste to the inner wall of the inner thread sleeve; C. assembling the TiAl base alloy charging turbine and the steel shaft together; and D. brazing the assembled TiAl base alloy charging turbine and steel shaft. The present invention has high connection strength.

The invention belongs to the field of building part production and particularly discloses a production line for a concrete prefabricated piece. The production line comprises a mould pretreatment station, a material distribution station, a mould combination station and a demoulding station. The mould combination station is used for stacking and combining moulds after material distribution is completed, connecting portions are arranged at the bottoms and on the upper portions of the moulds, and the vertically-arranged moulds are fixed through the connecting portions. An independent curing space is formed between the vertically-arranged moulds, and the prefabricated piece is cured in the curing space. According to the production line for the concrete prefabricated piece, a curing kiln or other curing rooms are not needed in the curing link, only the moulds are conveyed to stock dump after being stacked and combined, and demoulding can be conducted after curing is conducted for a certain time; the technological process is simplified, a stacking frame or other supports are not needed in the curing process, and production efficiency is improved while production cost is reduced; and meanwhile, due to the fact that the curing kiln and the like does not need to be used, cost is reduced, energy consumption is lowered, maintenance cost of facilities is reduced, and the occupied area of the whole technological production line is greatly reduced.

The invention relates to a box culvert crane working under the low clearance conditions, comprising a longitudinal moving bracket, a longitudinal moving trolley, a horizontal moving bracket, a horizontal moving trolley, a lifting device, a rotary device and a box culvert support, wherein the longitudinal moving trolley is arranged on the longitudinal moving bracket and connected through the horizontal moving bracket, and the horizontal moving trolley is arranged on the horizontal moving bracket; the rotary device is arranged on the box culvert support, and the lifting device is connected to the horizontal moving trolley and the rotary device respectively; and the box culvert support is in a U-shaped structure. With such structure, the box culverts can be installed under the low clearance conditions; since the box culverts are not required to rotate on a transport vehicle, the requirements for the transport vehicle are reduced, so a plurality of box culverts can be transported at a time, and the transport efficiency of the box culverts is improved; the installation of the box culverts and the tunneling of a shield machine can be implemented synchronously, so that the construction period and cost can be reduced greatly.

The invention discloses a stud welding mixed connection node of a rectangular concrete filled steel tubular column and an H-shaped steel girder. The H-shaped steel girder comprises an upper flange, a web and a lower flange, wherein the upper flange, the web and the lower flange are formed together. The rectangular concrete filled steel tubular column comprises an upper steel tube and a lower steel tube which are vertically arranged adjacently. The node comprises an inner separating board welded to the bottom in the upper steel tube, a through separating board welded to the bottom end of the upper steel tube and a vertical connecting board welded to the side of the bottom of the upper steel tube. The top end of the lower steel tube is welded to the lower surface of the through separating board. The upper flange is opposite to the inner separating board and welded to the upper steel tube. The web is connected with the vertical connecting board through high strength bolts. The lower flange is fixedly connected with the through separating board. According to the node, stud welding mixed connection is adopted, the node can be fast installed in the position in a field, a construction period can be obviously shortened, and the assembly process is facilitated. Meanwhile, due to the arrangement of the through separating board, a girder-end plastic hinge is moved outwards, the steel girder is damaged before the node, and safety of the node is guaranteed.

The invention relates to an automatic assembly device for an inner ring and an outer ring of a high-speed bearing, and belongs to bearing processing equipment. The automatic assembly device comprises a workbench, a heating mechanism and a clamp, wherein heating mechanism comprises a manipulator bracket, a heat conduction plate, a heating element, insulation boards and a manipulator, slide grooves are formed in the manipulator bracket, the manipulator can move in the slide grooves, grooves are formed in one end of the manipulator, the manipulator is electrically connected with an external control device, the heat conduction plate is annular, the heating element is sleeved on the heat conduction plate, the two insulation boards are arranged on the outer wall of the heat conduction plate and extend into the grooves to be connected with the manipulator, the clamp is positioned right below the heat conduction plate, a boss is formed at the upper part of the clamp in a narrowing way, a step face is formed between the boss and the clamp, an outer ring and a retainer with rolling elements are arranged on the step face, the outer ring is sleeved on the boss, and positioned on the upper inner side in the height direction of the retainer. According to the device, assembly is realized by virtue of self weight of an inner ring, the frictional wear of a bearing during the assembly process is alleviated, the temperature control precision is high, the assembly efficiency is high, the pollution is slight, and the service life of the device is long.

The invention relates to a processing method of sheets of a heat exchanger, in particular to a manufacture method of sheets of a V-shaped plate heat exchanger. The method is realized by two process steps including sheet compression and integral blanking of sheets. In the invention, the whole process for manufacturing the sheets can be realized just by adopting two working procedures; the sheets have flat surfaces, no easy distortion and high assembly precision; in addition, the purposes of reducing consumption, saving investment, lightening the labor intensity of workers and improving the quality of product can be realized.

The invention relates to an industrialized production process of alkyl benzenesulfonyl chloridebenzene sulfonyl chloride, which uses tubular reactor to continuously or kettle-type intermittently sulfonate alkyl benzene and liquid sulfur trioxide in the solvent as liquid sulfur dioxide, liquid wax, ligarine, and halohydrocarbon of C1-C4, 90-120# solvent oil and alkane of C4-C8 or the like, directly treats the reaction product and chlorosulfonic acid with acyl chlorination via a tubular reactor continuously or a kettle intermittently, to generate alkyl benzenesulfonyl chloridebenzene sulfonyl chloride, washes alkyl benzenesulfonyl chloridebenzene sulfonyl chloride, removes acid, and desolventizes to generate product alkyl benzenesulfonyl chloridebenzene sulfonyl chloride. The invention avoids generating hydrochloride gas, to support tube continuous production, reduce dangerous chemical in production system, reduce equipment investment, and improve economic benefit, which replaces chlorosulfonic acid with sulfur trioxide to process sulphonation to realize clean production and reduce material cost.