675 results about "Rapid prototyping" patented technology

High-level synthesis (HLS) is a complex design flow that exploits the benefit of modern language features such as loops, inheritance, templates, etc. for rapid prototyping of hardware designs. Hardware engineers explore various design space parameters in a time-consuming trial-and-error approach to meet a target design specification. This invention provides a framework where machine learning methods are integrated with Bayesian optimization (BO) to accelerate hardware design in HLS. This tool is built around the context of HLS pragma exploration and kernel transformation. It can produce best set of pragma installments to determine parameters by optimizing on multi-objective functions, such as reduction of digital signal processor, flip-flop, look-up table, power consumption, and latency. The method uses classical deep neural network and quantum neural network for reinforcement meta learning to predict the synthesis characteristics and synthesizability under a given time budget. A large language model can also assist transpilation to modify the original codes so that the best tradeoff between hardware complexity, latency, and power consumption is realized.

The invention discloses an injection molding temperature control method for rapid injection molding of an injection molded part, and relates to the field of injection molding temperature control, and the injection molding temperature control method comprises the following steps: performing main body division on a mold by scanning three-dimensional space data of the mold and combining geometric characteristics, and performing structural stability evaluation and gradient calibration on a main body division result; analyzing the surface curvature of a main body division area based on a main body division result, and setting a cooling channel local loop in combination with the heat distribution condition of an actual thermoplastic process; performing loop integration on the cooling channels of all the main body division areas, and setting the flow velocity of cooling liquid in the cooling channels based on the stress change of the injection molding part; based on the finally determined communication distribution of the cooling channels and the flow speed of the cooling liquid, the mold and the cooling channels are produced through 3D printing; according to the method, the injection molding period is remarkably shortened, the production efficiency and the quality and stability of injection molded parts are improved, and the method is suitable for rapid molding requirements of high-precision complex injection molded parts.

A nozzle embedded type 3D printing device for a thermosetting wood-plastic composite material belongs to the technical field of 3D printing, and comprises a rack, and an extrusion movement mechanism, a powder laying mechanism, a powder bed mechanism, a printing platform movement mechanism and a binder feeding system which are arranged on the rack, and the extrusion movement mechanism is fed through the feeding system. The printing efficiency of existing printing equipment can be improved, the manufacturing and maintenance cost of the existing equipment is reduced, the accuracy and consistency of a printing structure are ensured, and printing of a high-precision complex structure is achieved; the provided equipment combines the advantages of extrusion type printing equipment and a powder bed structure, the requirement of single extrusion printing for the formability of extruded materials is met, controllable printing of large-flow, high-viscosity and large-layer-thickness printing shapes and precision is achieved, the equipment is suitable for various types of binder materials, the variety and size range of powder bed materials is large, and the equipment is suitable for large-flow, high-viscosity and large-layer-thickness printing. And the rapid part forming machining requirements of wide material application range, large forming size and high part strength are met.

The invention discloses a trapezoidal keel and production equipment thereof, the trapezoidal keel comprises a stock mold and a forming mechanism, the stock mold is provided with a groove, the forming mechanism comprises a base, a bending assembly and a stamping assembly, the bottom of the base is provided with a mold groove, the stamping assembly comprises a stamping mold and a stamping rod, the stamping mold is arranged in the mold groove in an up-down sliding mode, and the forming mechanism further comprises an air cylinder; a driving rod is fixed to the output end of the air cylinder, the bottom end of the driving rod extends into the stamping die and is fixedly connected with a base plate, and the base plate drives the multiple sets of stamping rods to vertically slide in the stamping die. The bending assembly comprises bending plates and an abutting plate, and the bending plates are symmetrically arranged on the two sides of the bottom of the base and rotationally arranged on the base. The air cylinder drives the driving rod to move downwards to sequentially enable the pressing plate assembly to press the blank plate, the stamping die stamps the middle of the blank plate, the stamping rod punches the blank plate, and the abutting plate moves downwards to abut against the bending plate to drive the bending plate to rotate and bend the blank plate. The invention designs a trapezoidal keel with strong lateral stress, and designs a trapezoidal keel rapid forming device.

The invention provides a metal stamping die rapid forming method with a self-adaptive compensation difference value. The metal stamping die rapid forming method with the self-adaptive compensation difference value comprises the steps that a, a three-dimensional geometric model of a die to be compensated is obtained, and the actual geometric shape of the die is obtained through scanning equipment, b, meshing processing is conducted on the obtained three-dimensional geometric model, a grid data model is generated, and c, the compensation difference value is calculated based on the grid data model, and d, a compensation algorithm is optimized through multiple iterations, a self-adaptive compensation strategy is formed, and the calculation burden is reduced. According to the metal stamping die rapid forming method for the self-adaptive compensation difference value, the self-adaptive compensation difference value algorithm is adopted, the three-dimensional geometric model is processed through gridding, the compensation difference value is calculated based on the algorithm, and the complex shape of the die can be efficiently processed.

The present disclosure provides a semi-physical simulation verification method for a control strategy of a distributed hybrid power system, including the following steps: designing a rapid prototyping controller; completing a connection between a semi-physical simulation test platform and an upper computer; building a distributed hybrid power system simulation model using MATLAB / Simulink; and forming a code in Simulink and generating a MATLAB Function module, setting a signal output module for a control signal output under a control strategy, and establishing a corresponding relationship between the signal output module and an output signal interface of the rapid prototyping controller. According to the present disclosure, the test cost generated during verifying the feasibility of the control strategy of the distributed hybrid system is effectively reduced.

The invention discloses a rapid forming method for preparing a multi-layer thick and high-precision complex part, and belongs to the technical field of additive manufacturing, the method comprises the following steps: S1, part self-adaptive partitioning treatment: firstly partitioning the whole target part according to an internal entity and an outer surface, then adaptively dividing a partition into sub-partitions, and adaptively designing the width of the outer surface; s2, multi-layer thickness collaborative slice printing is conducted, specifically, the optimal forming layer thickness is set according to the partition characteristic difference, layer thickness collaborative slice design is achieved, and meanwhile the incidence relation between the layer thickness and the outer surface width is established; and S3, layered alternate scanning printing is conducted, specifically, highly-differentiated laser process parameters and scanning strategies are adopted for slices of different partitions. By means of the method, the metal part with the complex geometrical characteristics and the variable-thickness structure can be efficiently and precisely manufactured, and the quality and efficiency of the SLM technology in the complex metal part manufacturing process are remarkably improved.

The invention discloses a network protocol integrated development environment system based on a model context protocol MCP, and relates to the technical field of computer networks. The system comprises an IDE plug-in structure, a protocol analysis engine interface, a context awareness editing module, a user interaction interface and a collaborative view module. According to the method, a development tool is embedded through an IDE plug-in structure, a protocol analysis interface is called to carry out protocol structure identification and semantic modeling, and intelligent suggestions and semantic verification are provided in combination with context information in the protocol editing process. A user can carry out protocol structure editing and visual control through the interactive interface, and different roles can collaboratively carry out protocol design and verification tasks through the collaboration view module. The whole process forms a closed-loop mechanism from protocol modeling and semantic editing to context awareness suggestion, and high-intelligence and high-integration protocol development experience is achieved. The system significantly improves the efficiency and accuracy of protocol development, and is especially suitable for rapid prototype design and standardized development of complex network protocols.

The invention discloses a superconductive single-core rod surface quality optimization and rapid forming process. The superconductive single-core rod surface quality optimization and rapid forming process comprises the steps that a superconductive single-core rod is straightened through a horizontal straightening roller and a vertical straightening roller; the laser detection equipment carries out straightening detection on the superconducting single core rod; the laser meter counter and the fixed-length cutting equipment are used for carrying out fixed-length cutting on the superconducting single-core rod; the stripping die is used for stripping the superconducting single-core rod; and polishing equipment arranged in the same axial direction of the production line is used for polishing and repairing the superconducting single-core rod. By improving straightening and automatic fixed-length cutting-off, the non-straightness of the single core rod is improved, the scaling procedure is facilitated, meanwhile, the procedure of manual straightening after fixed-length cutting-off in the original process is avoided, the surface quality of the single core rod is improved, impurities brought into the surface of the single core rod and the defects caused by slight collision are basically eliminated, and the production efficiency is improved. The production efficiency is improved, and the good surface quality of the single core rod can be guaranteed.

The present invention belongs to the technical field of shoemaking equipment, and specifically is a rapid prototyping device for custom insoles, comprising a 3D printer body, a guide rail mechanism is provided on the 3D printer body, a print head is provided on the guide rail mechanism, the print head can be driven to move in the X, Y, and Z axis directions, a printing platform is also provided on the guide rail mechanism, the guide rail mechanism can drive the printing platform to move laterally, and a stripping mechanism for separating the formed insole from the printing platform is also provided on the 3D printer body. The present invention utilizes the stripping mechanism to realize the automatic separation of the formed insole from the printing platform, eliminating the process of manually stripping the insole from the printing platform using a spatula or a scraper, and saving manpower.

The invention provides a 3D printing rapid prototyping system based on multi-nozzle collaboration.The 3D printing rapid prototyping system based on multi-nozzle collaboration.The 3D printing rapid prototyping system based on multi-nozzle collaborationcomprises a printing unit, a control unit and an auxiliary unit, the printing system comprises a multi-nozzle device and a printing platform, nozzles can be independently controlled, the spacing angle can be adjusted, and the platform can be heated and cooled; the control module covers motion, material and temperature control and central control units, realizes cooperative motion, material supply and temperature control of the spray head and coordinates the work of each unit, and the auxiliary unit comprises a support structure generation and post-processing unit, and the system solves the problems of slow printing speed and limited material color of a traditional single spray head, improves the printing speed, and improves the printing efficiency. Multiple material colors can be printed at the same time, printing quality is improved, and system reliability and stability are enhanced.

The present invention relates to a method for preparing a thermosetting polyurethane elastomer for 3D printing, belonging to the field of rapid prototyping and manufacturing technology. This method utilizes a blocked isocyanate process to quantitatively control the reaction rate of a highly reactive polyurethane system, thereby obtaining a single-component thermosetting polyurethane elastomer stock solution. A polyurethane prepolymer is prepared using diisocyanate and oligomer polyol as raw materials. A blocked prepolymer is then prepared using an active hydrogen-containing blocking agent and a blocked prepolymer. A metered diamine chain extender and catalyst are then added to obtain a single-component thermosetting polyurethane elastomer stock solution. This method quantitatively controls the reaction rate of the highly reactive polyurethane system. The polyurethane elastomer stock solution is stable and low-toxic upon storage at room temperature. The raw material viscosity is adjusted by heating to meet the viscosity requirements for 3D printing, thereby achieving the green production of high-performance polyurethane elastomers.

The invention discloses a thin-wall sheath cable and a rapid forming process thereof, and the thin-wall sheath cable comprises a cable core, an insulating layer wrapping the cable core, and a sheath at the outermost layer. Wherein the cable core is formed by twisting a plurality of copper single wires; the insulating layer is made of a flame-retardant cross-linked polyethylene material; the sheath is made of a modified nylon material. Printing marks of the thin-wall sheath cable body are arranged on the insulating surface, the insulating layer and the sheath are extruded in a segmented mode, and the cable is formed at a time. The thin-wall sheath cable has the characteristics of flame retardance, environmental protection, wear resistance, small outer diameter, light weight, fast heat dissipation, large relative current-carrying capacity, easiness in pipe penetrating construction and the like.

The utility model discloses a gear box rapid forming die which comprises a die frame and a top plate fixed at the top end of the die frame, an upper die plate is installed at one end in the die frame in a sliding mode, and an upper gear box casting die is installed at the bottom end of the upper die plate. A pouring inlet allowing molten metal to enter is formed in one side of the surface of the upper gearbox casting mold, a hydraulic cylinder used for pulling the upper mold plate and the upper gearbox casting mold to ascend and descend is installed at the top end of the top plate, an inverted-U-shaped table is fixed to the bottom of the mold frame, and a lower gearbox casting mold is installed at the top end of the inverted-U-shaped table. The gear box workpiece is separated from the inverted-U-shaped table and the lower gear box casting mold, complete separation of the workpiece and the mold is achieved, and therefore workers can lift down the workpiece formed on the lower gear box casting mold conveniently, the difficulty of manual discharging operation is reduced through sufficient separation, and workpiece damage caused by insufficient separation can be avoided.

The invention discloses a rapid prototyping thermal runaway protection material and a composition, and the thermal runaway protection material and the composition comprise the following components in percentage by mass: 71-95% of a heat absorption material, 1.5-12% of polyvinyl alcohol, 0-1% of long-chain alkyl diacid and 3-16% of UV curing packaging resin, the thermal runaway protection material can be designed according to different battery structures, so that the battery packs can be conveniently placed, or one thermal runaway protection material can be placed among a certain number of battery packs. The heat absorption enthalpy value of the thermal runaway protection material is high, chemical reaction can occur between 90 DEG C and 400 DEG C and heat can be actively absorbed, generally, the temperature of the thermal runaway protection material is rapidly increased after thermal runaway of a battery pack, the temperature of the thermal runaway protection material reaches 90 DEG C or above, the material can spontaneously absorb heat and decompose at the moment, and the continuous heat absorption effect is formed (the heat absorption enthalpy of the heat absorption material is larger than 1200 J / g); and after the protective material is decomposed, a porous structure can be formed on the surface, and the protective material becomes an excellent thermal insulation material, so that heat is prevented from being transferred to adjacent batteries, the adjacent batteries are prevented from being continuously heated, and fire and explosion are avoided.

The invention discloses a rapid forming method for a motorcycle exhaust tail section bent pipe. According to the method, the physical constraint of a traditional mechanical mold is broken through through the electromagnetic field auxiliary bending technology, the metal pipe fitting is guided to be automatically formed through the dynamic regulation and control magnetic field, the mold development period and cost consumption are avoided, and the continuous curvature transition effect which is difficult to achieve through a traditional technology is achieved. A closed-loop feedback system corrects a forming track in real time and is matched with an intelligent temperature control and stress relief mechanism to ensure that the stable extension characteristic of the material is maintained in the high-speed deformation process; the surface quality of the airflow channel is optimized while residual stress is eliminated through high-frequency vibration treatment, and the airtightness and the noise reduction effect of the exhaust system are remarkably improved in cooperation with precise matching of the sealing face in the finish machining stage. According to the method, through deep fusion of accurate regulation and control of a physical field and digital manufacturing, a novel manufacturing normal form with quick response and controllable quality is provided for a customized motorcycle exhaust system.

The invention relates to the technical field of plate stamping, in particular to a stamping device for rapid forming of an aluminum alloy steel plate. The stamping die comprises a base seat, a forming cavity plate is arranged at the end of the base seat, a stamping part right facing the forming cavity plate is arranged at the end of the base seat, and a guide mechanism used for guiding the stamping end of the stamping part is arranged at the edge of the forming cavity plate. After stamping is completed, the aluminum alloy steel plate subjected to stamping forming can be rapidly ejected out through the ejection mechanism, and the formed aluminum alloy steel plate is laterally pushed out through the plate discharging mechanism under the limiting and guiding of the ejection limiting mechanism on the aluminum alloy plate, so that the aluminum alloy plate attached to the interior of the forming cavity plate is rapidly taken down, and the stamping efficiency is improved.

The invention relates to injection molding product forming, in particular to injection molding product rapid forming equipment and method.The injection molding product rapid forming equipment comprises a sliding support, a forming mechanism is slidably connected to the sliding support, a plurality of injection molding mechanisms are fixedly connected to the sliding support, and the forming mechanism can sequentially pass through the injection molding mechanisms and is connected with the injection molding mechanisms; the method comprises the steps that firstly, a forming mechanism is driven to move, so that the forming mechanism sequentially moves to the positions of a plurality of injection molding mechanisms and is connected with the injection molding mechanisms; 2, after the forming mechanism is connected with each injection molding mechanism, the forming mechanism is vacuumized; thirdly, the injection molding mechanism conducts rapid injection molding on the molding mechanism under the action of vacuum pressure; and injection molding raw materials can be quickly pumped into the mold for molding in a vacuum manner.

The present invention relates to an inflation-free explosion-proof tire based on rapid prototyping technology, wherein the tire comprises a carcass, wherein a plurality of air pockets arranged at intervals are arranged in the carcass; the air pockets are sequentially arranged along the circumference of the tire, and are arranged in a "one"-shaped multi-layer arrangement in the axial direction of the carcass; the air pockets are solidified and formed by rapid prototyping technology in a high-pressure inert gas atmosphere, and the air pockets are filled with high-pressure inert gas during forming. The tire of the present invention has excellent damping characteristics, inflation-free, low noise, and explosion-proof performance, greatly reduces the risk of tire blowout, maximizes the safety of personnel and vehicles, and has strong versatility and designability.

A nodular cast iron jacking pipe outer wall rapid forming production device comprises a chassis, a motor base and a demolding hydraulic cylinder are installed on the chassis, a driving motor is installed on the motor base, a driving gear is arranged at the output end of the driving motor and meshed with the side edge of a mold, and the lower portion of the mold is arranged on the chassis. A vibrator is installed on the outer wall of the mold, the demolding hydraulic cylinder is located in the middle of the upper portion of the chassis, a pipe body positioning disc is installed at the top end of the demolding hydraulic cylinder, a pipe body tray is arranged on the pipe body positioning disc, the side edge of the upper portion of the pipe body tray abuts against the bottom of the cast iron pipe body, and a disc pressing mechanism is arranged above the cast iron pipe body. The device has the advantages that demolding operation can be conducted after pouring is completed, the production efficiency of nodular cast iron jacking pipe outer wall concrete can be greatly improved, continuous production can be achieved only through one set of molds of the same specification, the mold utilization rate is greatly increased, the jacking pipe production efficiency is improved, and the daily output of the same specification depends on the number of pipe body trays.

The invention provides a rapid prototyping algorithm verification platform and method, and the method comprises the steps: receiving a configuration parameter inputted by a user through a configuration interface, and generating a configuration file based on the configuration parameter and a script written according to an AUTOSAR standard; building an algorithm model based on a function module which is selected by a user and meets the AUTOSAR standard; generating a model code corresponding to the algorithm model; and compiling and linking the configuration file and the model code in the underlying project to obtain a hex file. In the scheme, the configuration file and the model code conforming to the AUTOSAR standard are obtained by using the script written based on the AUTOSAR standard and each functional module obtained by packaging the ECU abstraction layer interface in the AUTOSAR standard, and are automatically integrated to the underlying project for compiling and linking, so that the code reuse rate is improved, the manpower is saved, and the efficiency is improved. And the purpose of shortening algorithm verification time is achieved.

The invention relates to the technical field of computer-aided forming, and discloses an RV reducer complex structural part rapid forming method based on a 3D printing technology, and the method comprises the steps: receiving three-dimensional model data of an RV reducer, and carrying out topological optimization; performing feature segmentation on the three-dimensional model to obtain differentiated sub-regions; filling each sub-region to generate an initial filling path; obtaining first printing deviation data, and correcting the initial filling path; acquiring second printing deviation data, and comparing the second printing deviation data with a preset threshold to judge whether to trigger a path correction mechanism; if the filling path needs to be corrected, dynamically adjusting the filling path; according to the method, the three-dimensional model data is processed through the computer, the filling path is optimized, the printing deviation is analyzed and dynamically adjusted, and the precision and efficiency of 3D printing of the RV reducer complex structural part are improved.

The invention discloses an integrated circuit magnetic field auxiliary electroplating system which comprises electroplating equipment provided with a cathode assembly and an anode assembly which are opposite to each other; the magnetic field generator comprises a magnet N pole and a magnet S pole, the magnet N pole is arranged on one side of an anode assembly of the electroplating equipment, the magnet S pole is arranged on one side of a cathode assembly of the electroplating equipment, and the magnetic field generator generates a transverse magnetic field between the cathode assembly and the anode assembly. The invention belongs to the field of micro rapid prototyping processing, and particularly relates to a magnetic field auxiliary electroplating system for an integrated circuit. The transverse magnetic field is applied to adjust the electric field through the magnetic force, and according to the electromagnetic induction principle and the Larentz force law, liquid phase mass transfer is accelerated, the deposition speed and the limiting current density are improved, the time of reaction bubbles staying on the deposition surface is shortened, grains are refined, and the deposition quality is improved.

The invention discloses a gift box fillet rapid forming die-free following adjusting mechanism which comprises a plurality of installation supports fixedly arranged on corresponding external fillet mechanisms. The lifting push rods are installed on the corresponding installation supports in a lifting mode through corresponding lifting mechanisms, and the lifting push rods are located above the external corner pasting mechanisms respectively; a mounting frame; according to the technical scheme, in daily use of the fine adjustment mechanism, the number of the lifting push rods and the number of the corner pasting mechanisms correspond to the number of corners of paper boxes, the external conveying mechanism moves paper box plates to be subjected to corner pasting to the positions between the lifting push rods and the corner pasting mechanisms, and then the lifting push rods descend; the lifting push rods abut against the corners of the paper box plate and then push the paper box plate to descend to the working range of the corner pasting mechanisms, the corner pasting mechanisms conduct corner pasting operation on the paper box plate, the lifting push rods move along with the corner pasting mechanisms so as to adapt to the paper box plates of different sizes, and then adjustment is conducted through the corresponding fine adjustment mechanisms. Therefore, different paper box plate thicknesses can be adapted.

The utility model relates to the technical field of rapid prototyping, in particular to a fused deposition 3D printer nozzle. The capillary tube, the heating body and the nozzle are sequentially butted. The heat dissipation body is sleeved on the periphery of the capillary tube. And the anti-torsion function part is used as a connection transition between the heating body and the heat dissipation body. In the printing process, when the nozzle is impacted by accidental force, the anti-torsion function part acts immediately, generated bending moment and torsion moment are conducted to the heat dissipation body immediately, at the moment, the stress main body is converted into the heat dissipation body with high structural strength, and therefore the overall anti-collision capacity of the fused deposition 3D printer spray head is effectively improved. Moreover, the ratio of the design length of the heating body to the overall length of the hot end is greatly increased, and the anti-torque function part is used, so that the jitter amplitude and the jitter frequency of the nozzle can be kept within a reasonable value range even under the condition of a high-speed and large-flow printing mode.

The invention belongs to the field of selective laser melting rapid prototyping, and discloses a TiCN nanoparticle-containing magnesium alloy for selective laser melting and application thereof, and the TiCN nanoparticle-containing magnesium alloy powder for selective laser melting comprises the following components by mass: 8.5-9.5% of Al element, 0.5-0.9% of Zn element, 0.2-0.4% of Mn element, 1.5-2.5% of TiCN nanoparticles, less than or equal to 0.1% of impurity, and the balance of Mg element. The TiCN nanoparticles are introduced into the magnesium alloy, the selective laser melting process is matched, the mechanical property of the correspondingly obtained SLM magnesium alloy forming part is good, the ductility of the forming part is further improved through the refined and uniform magnesium alloy grain structure and dispersively distributed nano TiCN, and the tensile strength, the yield strength and the creep fracture life of the forming part are all improved.

The invention belongs to the technical field of activated carbon production, and particularly relates to an energy-saving and environment-friendly type rapid forming device for columnar activated carbon production, particulate matter concentration standard exceeding data is calculated according to a calculated particulate matter concentration increasing curve and a preset particulate matter attenuation curve and the increasing curve, and then the deceleration amount is calculated based on the pre-stored attenuation curve. And the main control module generates a deceleration instruction according to the deceleration amount, and outputs the deceleration instruction to control the molding device main body to operate at a reduced speed. The main control module enables the attenuation speed of the concentration of the particulate matter in the air to be larger than the increase speed by reducing the running speed of the equipment, and after the running speed is kept for specific running time, the concentration of the particulate matter in the air is reduced. By means of intelligent calculation, production efficiency loss caused by the fact that redundant speed reduction amount needs to be reserved during manual operation of an operator is avoided, speed reduction time is accurate, and production efficiency can be recovered in time.

The invention discloses a ROS2-based surface exposure rapid prototyping method, device and system and a medium, and relates to the technical field of additive manufacturing. The method comprises the steps that all hardware nodes are reset and initialized, a forming platform is flush with a powder laying plane, powder is supplemented, and a scraper is reset. And importing the three-dimensional model of the part to be formed into ROS2-based slicing software, generating a support structure after attitude optimization, slicing according to a preset layer thickness to obtain a slice layer, and performing rasterization processing to generate a black and white mask image. And circulating subsequent steps for each slice layer until all slice layers are completed: descending a servo motor of a forming bin according to a preset layer thickness, providing powder by a powder supply bin, and then spreading and slicking the powder. And sending the black and white mask image corresponding to the current slice layer to the DLP to execute projection. The SLM laser node performs selective laser melting according to the projected area. And a molten pool image is captured in real time and analyzed, an analysis result is input to an ROS2 decision node to dynamically adjust process parameters, and closed-loop control is achieved.

The invention relates to the technical field of high-pressure die-casting production of lower car bodies, in particular to an integrated double-injection die-casting process for a lower car body, which is characterized in that two injection systems are matched with a die-casting module with a double-pouring system to realize rapid forming production of the lower car body; through implementation of the die-casting process, integrated forming of the lower car body can be achieved at a time, and the production efficiency of the lower car body is greatly improved. Meanwhile, the die-casting machine is provided with two sets of independent injection systems which are matched with the double-injection-position pouring and discharging system at the same time; symmetrical filling can be formed for filling of the integrated lower vehicle body; the pouring efficiency of the lower car body can be guaranteed, meanwhile, molten aluminum is injected into the two pouring systems to be subjected to hedging, and the mixing uniformity of the molten aluminum can be guaranteed.

The utility model discloses a rapid forming stamping structure of a turning plate, which comprises an upper combined pressing die connected with an oil press, a lower combined pressing die used for placing turning plate raw materials and a positioning pin used for limiting and guiding the turning plate raw materials, and the upper combined pressing die and the lower combined pressing die are provided with mirror image structures. Ribs in various shapes are arranged on the opposite plate faces of the upper combined pressing die and the lower combined pressing die. The upper pressing die and the lower pressing die are provided with the ribs in various shapes, so that the machined and formed turning plate is provided with the ribs, when objects falling from high altitude fall on the turning plate, the falling objects are buffered through the ribs, and the probability that the turning plate is broken down is reduced.