3429 results about "Batch manufacturing" patented technology

The invention discloses an intelligent detection method and system for adhesive force of an oil coating of a skylight aluminum rail, and relates to the technical field of coating detection. The method comprises the following steps: scanning a skylight aluminum rail to be detected to generate an aluminum rail surface 3D topological graph; performing multi-mode optical detection to obtain optical original detection data; the aluminum rail defect distribution topology is obtained through the defect identification marks; gridding oil coating adhesive force level detection is executed, and multi-level adhesive force defect distribution is output; fusing and analyzing the aluminum rail defect distribution topology and the multi-stage adhesive force defect distribution to obtain M comprehensive adhesive force defect characteristics; positioning a production deviation node sequence; and carrying out processing operation and maintenance intervention in the follow-up batch production process of the skylight aluminum rail. The technical problems that in the prior art, skylight aluminum rail oil coating adhesive force detection efficiency is low, and deviation links are difficult to trace are solved, the production deviation links are positioned by recognizing adhesive force defects of different levels, and the technical effect of improving the detection efficiency is achieved.

The invention provides an intelligent factory production optimization method and system based on AI scheduling, and belongs to the technical field of intelligent factory production management.The method comprises the steps that firstly, process disassembling is conducted on batch production orders, an order task atlas is obtained, a dynamic resource pool is constructed according to the real-time resource state of a factory, the order task atlas is input into a pre-trained scheduling AI model, and a scheduling AI model is established; a dynamic resource pool is combined to generate multiple groups of initial scheduling paths, conflict detection and conflict point identification are performed on the initial scheduling paths, an adaptive adjustment module is called to correct parameters based on conflict point types and influence ranges, a final production optimization scheme is generated and imported into a factory execution system, and intelligentization and high efficiency of production scheduling are realized. And the production efficiency and benefits are improved.

The invention belongs to the technical field of fastener machining equipment, and discloses bolt tail integrated machining equipment which is characterized in that a material conveying rail comprises a first rail and a second rail, a material containing gap is formed between the first rail and the second rail, a workpiece moves in the material containing gap, the material conveying rail is provided with a station rail section, and the station rail section is connected with the first rail and the second rail. The station rail section and the machining station are correspondingly arranged, and in the station rail section, the position, relative to the horizontal plane, of the first rail is higher than the position, relative to the horizontal plane, of the second rail; when the workpiece moves to a machining station, the movable positioning tool acts to clamp the workpiece between the first positioning groove and the second positioning groove, so that the machining mechanism machines the workpiece; the action direction of the jacking mechanism is parallel to the rail surface of the conveying rail, and the machining axis of the machining mechanism is perpendicular to the action direction of the jacking mechanism. Aiming at tail machining of aerospace fasteners, the machining precision can be guaranteed, the process time can be shortened in a single process or a continuous process, and batch production is achieved in an assembly line mode.

The invention discloses a multi-light-spot batch 3D printing device and method, and belongs to the field of 3D printing, the device comprises at least one galvanometer scanning unit, and each galvanometer scanning unit is provided with a laser beam splitting unit; the laser beam splitting unit is used for splitting one laser beam into a plurality of laser beams so as to form a laser matrix, and the distance between adjacent laser beams in the laser matrix is adjusted; the galvanometer scanning unit is used for reflecting the laser matrix to the printing working face, the laser matrix scans on the printing working face by adjusting the reflection angle of the galvanometer scanning unit, and multiple parts are printed in batches. Under the condition that the number of the galvanometers and the number of the lasers are not increased, the printing speed of small parts can be increased, and the requirement for batch production is met.

The invention discloses a degradable bamboo fiber express packaging bag and a preparation method thereof, and belongs to the technical field of express packaging. The packaging bag is prepared from, by mass, 32-42 parts of pretreated bamboo fibers, 22-28 parts of poly (butylene succinate), 9-14 parts of modified nano calcium carbonate, 12-16 parts of polycaprolactone, 6-11 parts of acetylated chitosan and the like, and the key raw materials are all treated through an exclusive pretreatment or modification process. The preparation method comprises the steps of raw material plasma activation, segmented high-speed mixing, vacuum drying, precise-parameter twin-screw extrusion granulation, secondary drying, precise film blowing, high-precision heat-sealing bag making and the like, and the technological parameters of all the steps are clear. The product disclosed by the invention can be efficiently degraded in a natural environment, has excellent tensile resistance, puncture resistance and impact resistance, is stable and controllable in processing process, and is adaptive to actual requirements of express packaging and industrial batch production.

The invention relates to the technical field of oil bearing press fitting, in particular to a double oil bearing press fitting auxiliary device which comprises a rack, a fixing block is arranged on the rack, a groove is formed in the fixing block, a positioning mechanism is arranged in the groove, and a press fitting mechanism is arranged above the positioning mechanism. The positioning mechanism comprises a first air cylinder, and a first hydraulic rod is arranged on the first air cylinder. Through the positioning mechanism, when a first hydraulic rod is driven by a first air cylinder in the positioning mechanism to move downwards, outer supporting assemblies in a first sliding hole and a second sliding hole in a guide column synchronously stretch out to tightly support two oil-containing bearing workpieces from the inner side, and meanwhile, a clamping assembly connected with the first hydraulic rod clamps the workpieces of the oil-containing bearings to be pressed from the outer side; the oil-retaining bearing press-fitting device is positioned between two oil-retaining bearing workpieces and ensures that the oil-retaining bearing workpieces and the oil-retaining bearing workpieces are coaxial, so that the problems of dislocation, deviation and the like can be effectively avoided, the press-fitting precision and efficiency are greatly improved, the product quality is ensured, the oil-retaining bearing press-fitting device is suitable for batch production, manual operation errors can be reduced, and the production efficiency is effectively improved.

The invention discloses an automatic assembling machine for assembling an insulating framework and a stator iron core, which comprises a rack, an assembling device is arranged on the rack, and the assembling device comprises a stator assembling assembly and a framework assembling assembly; the stator assembling assembly comprises an assembling translation mechanism, a rotating mechanism, a stator assembling station and an assembling pushing mechanism, and the assembling pushing mechanism and the stator assembling station are oppositely arranged at an interval, so that a stroke space is formed between the assembling pushing mechanism and the stator assembling station; the framework assembling assembly comprises a turnover mounting frame, a turnover mechanism and a turnover platform, a plurality of framework press-fitting stations are arranged on the turnover platform in a telescopic mode, and the turnover platform is driven by the turnover mechanism to be switched to the horizontal position or the vertical position. The automatic assembling machine used for assembling the insulation framework and the stator iron core is high in automation degree, improves the assembling efficiency of a stator assembly, reduces the labor intensity of workers, guarantees the quality and consistency of products, and is beneficial for achieving mass production.

The invention provides a glass fiber reinforced plastic grating automatic production device and a glass fiber reinforced plastic grating production process. The glass fiber reinforced plastic grating automatic production device comprises a curing unit, a longitudinal yarn winding unit, a transverse yarn winding unit and a traction assembly. The curing unit is provided with a curing space with a top opening; the longitudinal yarn winding unit is provided with a plurality of first yarn winding columns; the transverse yarn winding unit comprises a plurality of second yarn winding columns; the traction assembly comprises a traction head, and the traction head is used for driving yarn to sequentially wind the multiple first yarn winding columns and the multiple second yarn winding columns along a preset track. According to the automatic production device for the glass fiber reinforced plastic grating, the longitudinal yarn winding unit and the transverse yarn winding unit are located at specific positions, the traction head drives the yarn to be automatically wound on the first yarn winding column and the second yarn winding column along the set track, overall mechanical and automatic production is achieved, the labor intensity of workers is greatly reduced, the production efficiency is improved, and the production cost is reduced. And the glass fiber reinforced plastic grids produced in batches are the same in shape, so that the yield is improved.

The invention discloses a partitioned multifunctional metal double-cavity vacuum coating process and system, and belongs to the technical field of material surface treatment. The process comprises the steps of base material pretreatment, double-cavity preparation, vacuum inspection, first cavity bottom layer deposition, vacuum transfer, second cavity functional layer deposition and cooling, the double cavities are provided with corresponding target materials respectively, and parallel operation and vacuum seamless transfer are supported; the system comprises double coating cavities, a vacuum transmission channel, a vacuum acquisition and control module, a coating deposition module, a workpiece bearing module and a process parameter regulation and control module, and each of the double cavities is provided with a multi-target mounting rack and carries a real-time monitoring unit and an intelligent control system. Integrated preparation of the composite film layer and synchronous production of multifunctional workpieces are achieved, operation gaps are eliminated, the compactness and adhesive force of the film layer are improved, parameter deviation and the reject ratio are reduced, and batch production requirements are met.

The invention relates to the technical field of planetary gear machining equipment, and discloses a planetary gear machining device with a bidirectional feeding mechanism, which mainly comprises a planetary gear machining machine tool machining table for bearing machining operation, and a conveying mechanism for conveying planetary gear blanks, the bidirectional feeding mechanism is used for realizing bidirectional precise feeding; the conveying mechanism is arranged between machining tables of the planetary gear machining machine tool and used for achieving long-distance conveying of blanks. Two-way operation of blank feeding and finished product discharging can be achieved through the feeding robot of the two-way feeding mechanism, manual intervention is not needed, the blanks on the conveying belt are accurately transferred to the machining table, the finished products are transferred to the designated position after machining is completed, and automation of the whole process is achieved; the mechanical arm of the feeding robot is flexible and controllable and can be matched with the rotating shaft to meet the grabbing and transferring requirements of different angles, the feeding path is accurate, the feeding time is greatly shortened, and the batch production efficiency is improved.

The invention relates to the technical field of spaceflight material forming, in particular to a tension control winding process of a spaceflight carbon fiber composite launch canister, which comprises pretreatment, winding forming, curing and post-treatment. The method comprises the following steps: S1, coating a release agent and a modified coating after processing a core mold, carrying out plasma treatment and eliminating stress; the carbon fiber filaments are soaked in resin containing nanometer components, and are pre-stretched after a hot melting reaction; s2, closed-loop tension control is conducted, winding is conducted according to segmented angles, and modified resin is coated between layers to be overlapped in a crossed mode; s3, stepwise heating and curing, dynamically regulating the pressure and introducing inert gas; and S4, polishing after hydraulic demolding, carrying out sand blasting, carrying out transition layer and ceramic coating, and carrying out multi-dimensional detection. According to the process, the mechanical property and environmental adaptability of the launch canister are improved, the process precision is high, defects are reduced, the forming time is shortened, the rework rate and cost are reduced, the spaceflight requirement is met, and the process is suitable for batch production.

The invention discloses an assembly line and an assembly method for batch production of stacked micro-nano satellites, belongs to the technical field of batch production of satellites, and particularly relates to the assembly line and the assembly method suitable for batch production of the stacked micro-nano satellites. The problems that an existing satellite is low in production (assembly) efficiency, high in cost and long in period are solved. The method comprises the following steps: performing single-machine thermal control implementation and component assembly to form a single-machine component; cabin section assembling is conducted, and a complete cabin section module is formed; carrying out platform cabin closing to form a complete whole-satellite platform; butting the upper cabin and the lower cabin of the load to form a satellite in a middle state; and solar wing assembly is carried out to form a final whole satellite in a to-be-launched state. The assembly line for batch production of the stack type micro-nano satellites and the assembly method are suitable for batch production of the stack type micro-nano satellites.

The invention provides an efficient composite material manufacturing method based on front-end polymerization initiation point design, relates to manufacturing of forming materials containing macromolecular substances, and belongs to the technical field of common technological processes of processing and batching of macromolecular materials. According to the invention, the epoxy resin composite material with excellent mechanical properties is rapidly prepared with low energy consumption by preparing the epoxy resin front-end polymerization solution and initiating front-end polymerization at multiple points. The method has the advantages of being high in designability, easy to operate and the like, and rapid and energy-saving manufacturing of the epoxy resin and the composite material thereof is achieved while the mechanical property is maintained through multi-point initiation of front-end polymerization. The method has a wide application prospect in batch production of epoxy resin and composite materials and manufacturing of large-scale structures.

The invention relates to an automatic binding system for a reinforcement cage and application of the automatic binding system. The system comprises a control station, a binding jig frame, a four-way rail arranged in the circumferential direction of the binding jig frame, a four-way RGV arranged in a sliding mode in cooperation with the four-way rail, a sub-control piece, a mechanical arm, an identification piece and a binding piece, wherein the sub-control piece and the mechanical arm are arranged on the four-way RGV, and the identification piece and the binding piece are arranged at the output end of the mechanical arm. The control station is in communication connection with the sub-control piece and is used for directly or indirectly controlling the four-way RGV, the mechanical arm, the identification piece and the binding piece; the automatic binding system for the reinforcement cage is applied to binding of the reinforcement cages of T-shaped beams, box beams, pier columns and cover beams. The method has the advantages of improving the production efficiency and ensuring the batch steel bar binding result, and is suitable for batch production of steel bar cages of T beams, box beams, pier columns and cover beams.

The invention discloses a batch processing technology of micro-fluidic chips, and relates to the technical field of chip processing. The method comprises the following steps: firstly, providing at least two layers of polymer coiled materials, namely a first coiled material for forming a micro-channel structure and a second coiled material for closing a micro-channel, the coiled materials are continuous coiled materials selected from polyethylene glycol terephthalate (PET), cycloolefin polymer (COP), polycarbonate (PC) or polymethyl methacrylate (PMMA), and the coiled materials are continuous coiled materials selected from polyethylene glycol terephthalate (PET), cycloolefin polymer (COP), polycarbonate (PC) or polymethyl methacrylate (PMMA); the thickness of the coiled material is 50-500 microns; secondly, carrying out continuous compression molding processing on the surface of the first coiled material through a roll-to-roll processing platform; through a roll-to-roll continuous process, micro-channel mold pressing, functional deposition, precise alignment bonding and online cutting are integrated, high-efficiency, high-consistency and high-integration-level batch manufacturing of the micro-fluidic chip is realized, and manual intervention and production cost are remarkably reduced.

The invention discloses a vertical drill machine tool with a guide sleeve and drilling tool synchronous replacing system. The vertical drill machine tool comprises a machine tool body, a stand column, a main shaft, a supporting frame and a tool replacing device. The tool changing device is fixed to the stand column through a mounting frame, and the core of the tool changing device comprises a first rotating disc used for bearing drilling tools of multiple specifications, a second rotating disc used for bearing guide sleeves of multiple specifications and a second rotating shaft controlled by a lifting driving mechanism and a transverse moving driving mechanism, wherein the first rotating disc and the second rotating disc are coaxially linked. The second rotating shaft is provided with a first swing arm with first clamping jaws at the two ends and a second swing arm with second clamping jaws at the two ends, and synchronous automatic replacement of the spindle drilling tool and the supporting frame guide sleeve is achieved through synchronous rotation of the double swing arms and cooperation of the movable driving device. The drilling tool and guide sleeve replacement process is integrated into single automatic operation, manual guide sleeve replacement is thoroughly replaced, the type replacement time is shortened to be below 10% of that of a traditional mode, the installation precision is high, fool-proof performance is high, and the efficiency of multi-variety small-batch production is remarkably improved.

The invention discloses a three-dimensional woven radome preform woven and formed by a multi-heald eye device, weaving equipment with a plurality of independent controllable heald eyes is adopted, and the method comprises the following steps: S1, a weaving mold is provided, and the surface of the weaving mold is provided with a three-dimensional curved surface corresponding to the shape of a target preform; s2, a warp system is led to the weaving mold and penetrates through the independent controllable heald eye. By adopting a multi-heald-eye independent driving control scheme, the limitation of the number of healds of traditional fixed heald eye equipment is broken through, the weaving requirement of a large-size conical structure with the bottom maximum diameter being about 600mm and the axial length being about 900mm can be accurately met, meanwhile, yarns are arranged along the three-dimensional curved surface of the mold in a shape following mode, secondary preforming is conducted without the help of the mold, and the production efficiency is improved. According to the method, the size deviation and the structure damage caused by secondary processing are avoided, the production period is remarkably shortened, the economical efficiency and the efficiency of batch production are improved, and the weaving feasibility and the structure consistency of the large-size variable-thickness structure are ensured.

The invention discloses a shoe sole production management optimization method and system based on order demands, and belongs to the technical field of production management, and the method specifically comprises the steps: carrying out the order priority dynamic judgment according to the production complexity corresponding to a shoe sole specification parameter and the emergency degree corresponding to a delivery period in an order information file, and generating a priority sequence; calling the equipment state, raw material inventory and capacity data in the production system, pre-distributing production resources for each order according to the priority sequence, synchronously checking the feasibility of a pre-distribution scheme, and judging whether the pre-distribution scheme has resource conflicts or not; if the resource conflict exists in the pre-allocation scheme, triggering the constructed conflict automatic coordination rule, and generating a conflict-free allocation scheme by adjusting a production batch sequence or splitting batch production; and according to the conflict-free distribution scheme, generating a sole production execution plan corresponding to each order in combination with each requirement in the order information file, and determining starting and ending time and an operation standard of each production link.

The invention discloses tapping equipment and method for square-head bolt production and machining, and relates to the technical field of tapping equipment.The tapping equipment comprises a machine body, a machine head, a feeding mechanism, a machining mechanism and a multi-station rotating mechanism, the machining mechanism comprises a hydraulic cylinder and a driver, and a screw tap is installed in the middle of the bottom of the driver; the multi-station rotating mechanism comprises a material guiding hopper and a rotating workbench, the rotating workbench is rotationally installed in the middle of the top of the machine body, a limiting material clamping groove is formed in the edge of the top of the rotating workbench, and a circular ring is fixedly installed at the bottom of the rotating workbench; a fan-shaped tray is fixedly connected to the side, away from the guide hopper, of the top of the machine body, and a clamping assembly is installed on the surface of the fan-shaped tray. According to the tapping equipment and method for square-head bolt production and machining, the rapid tapping effect is achieved, positioning and clamping can be conducted, deflection and deviation are not likely to happen, batch production is facilitated, and tapping is convenient, safe and reliable.

The invention discloses an involute helical gear tooth surface waviness rapid detection method based on wavelet transformation, relates to the technical field of gear measurement and evaluation, and aims to solve the problems of low efficiency, insufficient anti-interference capability and limited extraction precision in existing tooth surface waviness detection. High-density data sampling is carried out on a specified tooth surface of an involute helical gear, a multi-scale characteristic decomposition signal of wavelet transform is utilized, a tooth surface waviness signal is separated from complex morphology characteristic components, and in combination with a threshold optimization algorithm, detail characteristics of waviness are effectively reserved, and meanwhile interference of non-correlation signals is restrained. In addition, efficient data processing and real-time waviness feature extraction are realized by designing a rapid analysis process and an automatic parameter adjustment mechanism. The method is suitable for gear quality detection in a batch production environment, and provides a reliable basis for defect diagnosis and optimization in a gear manufacturing process. Compared with a traditional detection method, the method has remarkable advantages in the aspects of detection precision, stability and speed.

A thin film lithium niobate polarizer and a manufacturing method therefor. The thin film lithium niobate polarizer comprises a substrate layer, an optical waveguide layer and an upper cladding layer; the optical waveguide layer comprises a light input port, a light output port, a slab layer and a ridge waveguide layer, the ridge waveguide layer being disposed on the slab layer; the ridge waveguide layer comprises at least one transmission waveguide section, and two ends of the transmission waveguide section are symmetrically connected with connecting waveguide sections; and the transmission waveguide section is used to filter light in a TM mode in a laser signal, and output light in a TE mode in the laser signal by means of the connecting waveguide section at the other end and the light output port, achieving separation of TM and TE components in the input laser signal, to obtain pure TE light, and thereby achieve a polarizing effect. In addition, using a thin film lithium niobate platform helps to reduce the size of a device, facilitating device integration and chip miniaturization. A standard semiconductor process is used, and the process technology is mature, so that costs can be effectively reduced, and the batch production capacity of the device is improved.

The present invention provides a fire extinguishing sheet suitable for productivity, mass production, and large-scale production, wherein the fire extinguishing sheet can be used in places, facilities, structures, etc., where a fire may occur, and has an initial fire extinguishing function. The fire extinguishing sheet according to the present invention contains a fire extinguishing agent that when a predetermined temperature is reached, thermally decomposes to generate a fire extinguishing component.

The invention relates to economical corrosion-resistant 5Cr80 rare earth oil well pipe steel and a preparation method thereof, belongs to the technical field of corrosion-resistant oil well pipe steel for petroleum engineering, and aims to solve the problems that the cost is high due to addition of precious metals such as Mo and Ni in existing medium Cr steel, pitting corrosion is induced by inclusion of MnS, and a rare earth treatment process is unstable. The oil well pipe steel is prepared from the following chemical components in percentage by mass: 0.05 percent to 0.08 percent of C, 0.3 percent to 0.50 percent of Si, 0.80 percent to 1.5 percent of Mn, less than or equal to 0.01 percent of P, less than or equal to 0.0020 percent of S, less than or equal to 0.0020 percent of O, 0.0050 percent to 0.0350 percent of Ce, 4.5 percent to 5.5 percent of Cr, less than or equal to 0.035 percent of Al, 0.020 percent to 0.030 percent of V and the balance of Fe and inevitable impurities. The yield strength of the oil well pipe steel is larger than or equal to 580 MPa. The economical corrosion-resistant 5Cr80 rare earth oil well pipe steel which is low in cost and free of a Mo-Ni component system is used for replacing a traditional high-alloy pipe in a harsh oil and gas well environment containing high Cl <-> and CO2, and the economical corrosion-resistant 5Cr80 rare earth oil well pipe steel is suitable for batch production of corrosion-resistant oil well pipes of deep wells, ultra-deep wells and sulfur-containing and CO2-containing complex working conditions.

The invention relates to the technical field of hot rolling, in particular to a hot rolling unit finished strip section shape and strip shape forecasting method which comprises the following steps: carrying out transverse unit distribution division on a roll system; the rolling pressure borne by the working roller is segmented; analyzing roller system stress and calculating roller deflection; calculating transverse distribution values of the inter-roller pressure and the rolling force; calculating a section shape distribution value of the finished strip according to a roll gap equation; calculating a front tension transverse distribution value; and calculating the strip shape distribution of the finished strip. The method has the advantages that the metal deformation model and the roll shape elastic deformation model in the hot rolling process are established, the section shape and the plate shape of the finished strip are calculated by coupling the two models, and forecasting of the section shape and the plate shape of the finished strip of the hot rolling unit is completed; the forecasting result obtained by adopting the scheme of the invention conforms to the quality of the product real object produced in an industrial batch mode, and the provided theoretical calculation model can be directly applied to an industrial production line, so that the purposes of simplifying the production process and reducing the production cost are achieved.

The invention relates to the technical field of industrial automation and intelligent manufacturing, and discloses a flexible packaging forming system and method based on a modular station robot, and the system comprises a central control module, a station robot module, a flexible material conveying module and a distributed intelligent detection module. The station robot module integrates functional units such as gluing, positioning and attaching, edge folding and frame erecting, foam scraping and flattening, precise gluing and assembling and cleaning. The method comprises the following steps: the central control module analyzes an order into a control instruction; the flexible material transmission module establishes a dynamic logistics network according to the instruction; the station robot module executes a full-process automatic forming process based on force control, visual compensation and impedance control algorithms; and the intelligent detection module feeds back quality data in real time to realize closed-loop correction. The problems that a traditional rigid production line is difficult to adapt to multi-variety small-batch production, the key process precision is insufficient, and accessory assembly depends on manual work are solved, and the flexibility level and the yield of packaging production are improved.

The invention discloses a steel bar for an ecological electric furnace automobile speed reducer and a preparation method of the steel bar. The steel bar comprises, by mass, 0.18%-0.22% of C, 0.17%-0.37% of Si, 0.90%-1.20% of Mn, smaller than or equal to 0.015% of P, smaller than or equal to 0.007% of S, 1.10%-1.40% of Cr, smaller than or equal to 0.30% of Ni, 0.20%-0.30% of Mo, 0.15%-0.20% of V, smaller than or equal to 0.20% of Cu and the balance iron and inevitable impurities. The steel bar for the automobile speed reducer is produced by combining ecological electric furnace smelting, LF, RH, continuous casting and rolling processes with reasonable component design, the high-end use requirement is met, and the breakthrough of batch production of the steel bar for the automobile speed reducer in the ecological electric furnace continuous casting process is achieved.

The application relates to the technical field of metal casting, and discloses a directional solidification casting equipment for low-internal-stress aluminum alloy complex structures, which comprises a heat preservation furnace, a rotary casting assembly, an infiltration temperature control assembly and a forming die. The casting equipment is provided with the rotary casting assembly and the forming die on a rotary table, the rotary table rotates at different rotating speeds to provide controllable centrifugal force, metal liquid is infiltrated and cast on the forming die in the anti-gravity mode under the action of the centrifugal force, the infiltration speed and pressure can be adjusted by changing the centrifugal force, the limitation of workpiece size in negative pressure casting is broken, and the anti-gravity casting of complex structure workpieces is facilitated, the equipment can simultaneously synchronously cast multiple molds, each process parameter is convenient to uniformly control, the quality consistency is ensured, the problem that continuous carbon fiber reinforced aluminum matrix composite materials are difficult to mass produce is solved, and the production efficiency is improved.

The invention discloses a TC4 skin self-adaptive tailored blank laser welding method based on light beam scanning-pulse cooperation, and belongs to the technical field of high-energy beam precision welding. The problems that in the batch production process of the aerospace thin-wall titanium alloy standardized cabin, due to skin assembly gap fluctuation, plate thickness misalignment, V-shaped notches and other shape and position deviations, the shape of a molten pool is unstable, and welding seam forming consistency is poor are solved. A collaborative matching method of a scanning path and pulse energy parameters is adopted to improve the bridging efficiency of a molten pool and the form stability of a bridging liquid film, and meanwhile, self-adaptive response adjustment of welding parameters is achieved by combining workpiece form and position deviation changes and real-time monitoring feedback of dynamic bridging behaviors of the molten pool. According to the technology, continuous and stable welding seam forming under the assembly working condition of a gap of 0.2-0.4 mm, a misalignment of 0.3-0.6 mm or a V-shaped notch of 20-30 degrees is achieved for the specification of a skin with the thickness larger than or equal to 1.5 mm, the tensile strength of a welding seam reaches 95% or above of a base material, and meanwhile high welding heat efficiency is maintained. According to the method, the adaptability of the laser welding technology to the workpiece form and position deviation is remarkably improved through the multi-parameter synergistic effect and process monitoring feedback regulation and control, and key technical support is provided for solving the high-quality and stable welding problem of a new-generation spaceflight standard general cabin structure in the development and batch production process.

The invention discloses a shell for a rocket power device and a machining method, and the machining method of the shell comprises the steps that a mandrel is arranged, a foaming core mold is manufactured on the periphery of the mandrel, and the shape of the outer surface of the foaming core mold is the same as that of the inner surface of the shell to be machined; winding a shell material on the outer surface of the foaming core mold to form a shell on the surface of the foaming core mold; and the core shaft is removed, and the foaming core mold in the shell is removed. According to the shell machining method, the core mold blank is formed at a time through foaming injection molding with the core shaft as the standard, the core mold is removed after the shell is formed in the shell material winding machining mode, the machining mode is higher in efficiency and suitable for batch production, and the technical problems that in the related technology, the core mold is large in weight and high in cost are solved.

The invention relates to the technical field of stainless steel pipe production, and provides a stainless steel seamless steel pipe production process which comprises the following steps: step 1, raw material pretreatment: selecting a stainless steel pipe blank conforming to specifications, detecting internal defects through ultrasonic flaw detection, and cleaning the surface of the pipe blank by adopting a shot blasting machine; 2, tube blank heating, wherein the tube blank in the step 1 is placed in a medium-frequency induction heating furnace to be heated; thirdly, hot extrusion forming is conducted, specifically, the pipe blank in the second step is placed in an extruding machine with an annular die head, and an initial seamless steel pipe is formed; and 4, on-line solid solution treatment is conducted, specifically, the steel pipe in the step 3 is fed into a continuous solid solution furnace to be subjected to heat preservation for 30-60 seconds. By means of the multi-link collaborative optimization production technology, high-quality batch production of the stainless steel seamless steel pipe and flaw detection and surface cleaning in the raw material pretreatment stage are achieved, the pipe blank quality is guaranteed, sectional type heating and precise temperature control hot extrusion forming are achieved, and the structural integrity of the initial steel pipe is guaranteed.