1890 results about "Stamping process" patented technology

The invention provides a digital twin construction method for metal stamping forming and a computer system, and the method comprises the steps: obtaining a multi-source monitoring data set in a metal stamping forming process, carrying out the collaborative feature extraction processing, and generating a material structure feature set and a process dynamic feature set; a mixed feature space is constructed based on the material structure feature set and the process dynamic feature set, multi-dimensional feature matching processing is executed in the mixed feature space, a feature mapping relation network is generated, a dynamic twin model is constructed according to the feature mapping relation network, and real-time state deduction is conducted on the stamping forming process based on the dynamic twin model. And a forming quality prediction result and a process defect positioning result are generated, and a stamping process parameter adjustment scheme is generated and fed back to a stamping control system to trigger parameter optimization operation. According to the method, the early warning capability of process defects and the precision of process parameter adjustment under complex working conditions are improved, and meanwhile, the real-time performance and engineering feasibility of digital twin construction in the large-scale stamping forming process are guaranteed.

The invention relates to the technical field of stamping metal processing, in particular to an integral forming stamping process for a new energy automobile battery contact spring, which comprises the following steps: collecting parameters in real time; abnormal judgment is performed to form a result; determining an abnormal event type; judging a processing risk grade; the blanking force and the forming force are adjusted; adjusting a tension threshold value and a synchronization degree threshold value; and the preset feeding speed is adjusted. Through multi-parameter real-time collection and coupling analysis, a closed-loop control system based on abnormal recognition, risk assessment and parameter self-adaptive adjustment is established, the precision and stability of contact spring punch forming are remarkably improved, the blanking force and the forming force are intelligently adjusted in a linkage mode when the risk level is high, so that the punching quality is optimized, and the production efficiency is improved. And the problem of composite disturbance instability caused by incapability of adapting to dynamic change of material elasticity and processing speed due to excessive dependence on a fixed adjustment mode is effectively solved.

The invention discloses a stamping die health state assessment method and system based on digital twinning, and relates to the technical field of die health state assessment, and the method comprises the following steps: a physical sensor network deployed on a stamping die collects die stamping process data in real time; constructing a finite element analysis simulation FEA model to simulate the working condition of the stamping die based on the geometric structure, the material attribute and the stamping process parameters of the die; according to the invention, the data of the die stamping process are collected in real time through the physical sensor network, and real-time calculation is carried out in combination with the finite element analysis simulation model, so that transient stress field, strain field and temperature field data of the die can be output in a short time, and real-time monitoring of the health state of the die is realized; by considering the degradation of the mold material performance along with the use time and the dynamic process of quantitative damage accumulation, the damage accumulation value is accurately calculated through the dynamic material performance database and the continuous damage mechanical model, and the accuracy of the evaluation result is improved.

The invention discloses a die stamping process optimization method and system, and relates to the related field of mechanical manufacturing, and the method comprises the steps: obtaining a data set of a workpiece, and extracting the features of the workpiece; matching simulation of the workpiece and the matching part is carried out, and a restrictive space of the workpiece is established; inputting the workpiece features and the product requirements of the workpiece into a structural feature analysis model to execute structural analysis, and establishing a structural sensitive identifier; performing mold optimization fitting, and establishing a mold reinforcing rib scheme set; performing stamping key parameter optimization based on the scheme set, and establishing a control parameter optimization set; and performing evaluation analysis on a mapping result through a multi-dimensional fitness evaluation function to generate a process optimization scheme. The technical problem that in an existing die stamping process optimization method, die design and process parameter adjustment are carried out separately, integrity and collaboration are lacked, and the optimization effect is limited is solved, and the technical effect that die design and process optimization are closely combined, and comprehensive optimization from die design to process parameters is achieved is achieved.

The invention discloses an automobile lengthened longitudinal beam stamping springback prediction and compensation method, which comprises the following steps: constructing an initial data set containing an initial prediction value according to the influence of preset process parameters on stamping springback; constructing a springback prediction model by adopting an incremental plasticity theory, training the springback prediction model by adopting a gradient boosting decision tree, and adjusting process parameters by adopting a Bayesian optimization method; according to the optimal process parameters, finite element simulation is adopted to manufacture a longitudinal beam, simulation stamping springback data is generated, and a genetic algorithm and a variational auto-encoder are adopted to optimize a die compensation shape; and calculating compensation data of auxiliary stamping according to the die compensation shape, generating longitudinal beam processing data, and taking the longitudinal beam processing data as real stamping process parameters of the longitudinal beam. According to the stamping springback prediction and compensation method for the lengthened longitudinal beam of the automobile, the springback prediction accuracy can be improved, and the forming quality of the longitudinal beam is improved based on the optimized mold compensation shape and the auxiliary stamping compensation data.

The invention provides a method for optimizing stamping process parameters of a thin-wall rectangular shell of a new energy battery, and relates to the technical field of metal plate stamping forming. The method systematically explores a process parameter space through an orthogonal test design, and accurately quantifies a parameter coupling effect in combination with a dual-target regression model to optimize the stamping process parameters of the thin-wall rectangular shell of the new energy battery. An NSGA-I algorithm is utilized to generate a Pareto optimal solution set giving consideration to the maximum / minimum molding thinning rate, and the limitation of traditional single-target optimization is broken through; furthermore, material fluctuation and equipment deviation are compensated in real time through PI D dynamic control, closed-loop control of modeling-optimization-feedback is formed, the consistency of the forming quality of the thin-wall shell is remarkably improved, the defect rate is reduced, meanwhile, the process debugging period is shortened, the adaptability of a production line to complex working conditions is enhanced, and the production efficiency is improved. And reliable technical support is provided for efficient and precise stamping of the new energy battery shell.

The invention discloses an intelligent analysis and optimization method and system for the cross section of a stamped metal pipeline, and relates to the technical field of machining, and the method comprises the steps: obtaining a die design data flow and a stamping process data flow of a target stamped metal pipeline through a stamped metal pipeline production system, and obtaining a cross section machining data flow through a sensor; and performing finite element analysis on the basis of the plurality of data streams to generate a finite element model of the stamping metal pipeline. And obtaining application scene information of the target stamping metal pipeline, analyzing and determining pipeline stamping process simulation parameters, and performing section simulation analysis based on the finite element model to obtain a pipeline section quality analysis result. And adaptive adjustment is conducted on the stamping process simulation parameters based on the result, multiple pipeline stamping process parameters are obtained, feedback optimization is conducted, target pipeline stamping process parameters are determined, and production machining is conducted on the target stamping metal pipeline based on the target pipeline stamping process parameters. Therefore, the technical effects of shortening the optimization period and reducing the optimization cost are achieved.

According to the springback prediction compensation method in the precise stamping process of the high-pitch panel, the stamping force, the die temperature and the material thickness tolerance are collected through the multi-channel sensor, and the data quality is improved by combining standardization and abnormal value elimination; realizing parameter dimension reduction by adopting principal component analysis, obtaining working condition feature representation, quantifying working condition similarity by utilizing a weighted Euclidean-Mahalanobis distance, judging unseen working conditions in real time, and automatically triggering meta-learning model compensation; through model-independent element learning, rapid adaptive error prediction based on newest stamping data, and combination of confidence evaluation and dynamic adjustment compensation strategies, efficient prediction and robust compensation of springback errors are realized, and model parameters are continuously optimized in follow-up combination with actual compensation feedback. According to the method, the self-adaptive capacity and the forming precision to unknown stamping working conditions are improved.

The invention discloses an auxiliary design method and system for a stamping die, relates to the technical field of stamping dies, and realizes dynamic optimization and adjustment of a stamping process by receiving a design optimization instruction and combining real-time monitoring of mechanical property parameters and stamping specification parameters. In the prior art, the stamping process often depends on artificial experience and fixed parameters, and a real-time feedback mechanism and a systematized adjustment strategy are lacked. Through real-time acquisition and processing of mechanical property data, automatic adjustment can be carried out based on actual working conditions, and the stamping precision and efficiency are improved. In the blanking process, the influence of elastic recovery on blanking force fluctuation is analyzed, the heating temperature and the die gap range are further adjusted, the optimization strategy enables the stamping process to be adjusted according to actual changes, and a condition adaptation mark is finally generated by determining an adaptive heating temperature interval and continuously adjusting the heating temperature.

The invention relates to the technical field of numerical control punching machines, in particular to an intelligent punching control method and system of a high-precision numerical control punching machine, a medium and computer equipment. According to the method, the initial parameters are acquired, the coupling model is constructed, the complex coupling relationship among the parameters is quantitatively analyzed, the interaction among the parameters is accurately captured, and the weighted value is dynamically adjusted to realize multi-parameter collaborative optimization, so that the globality and stability of the optimization process are ensured, and the optimization efficiency is improved. An improved particle swarm optimization algorithm is adopted to solve a collaborative optimization objective function, optimization efficiency and precision are effectively improved, an optimization scheme is verified through a virtual stamping test and real-time data acquisition, it is ensured that the optimization scheme can keep a low parameter fluctuation index in the actual stamping process, and the optimization efficiency and precision are improved. Through construction and dynamic optimization of the multi-parameter coupling model, the problem that the global optimal solution is difficult to realize due to the fact that mutual influence among parameters cannot be fully considered in single-parameter adjustment in the prior art is effectively solved.

The invention relates to a dynamic control method and system for elastic sheet punch forming in the field of high-end equipment manufacturing, and the method comprises the steps: obtaining optimized pressure distribution data, and calculating the punching speed adjustment amount of each region in combination with a preset model of the impact of the punching speed on the deformation of an elastic sheet, thereby obtaining a speed distribution adjustment matrix; the stamping speed data and the pressure distribution data which are adjusted in real time are adopted to drive stamping equipment to execute dynamic stamping operation, and the size and performance measurement data of the formed elastic piece are obtained; obtaining the size measurement data of the formed elastic sheet, and scanning the surface of the elastic sheet through a high-precision three-dimensional scanner to obtain an elastic sheet size deviation distribution matrix; and the updated stamping process parameters are adopted, stamping operation is circularly executed, dimensional deviation and performance consistency data are continuously collected, and finally elastic piece product data meeting the precision requirement are obtained.

The utility model discloses an anti-sticking punching device for bearing forging. The anti-sticking punching device comprises a punching rack, a lifting driving mechanism, a punching head, a punching table, a guide vertical rod, a guide transverse rod, a clamping block and a pressing rod. The guide vertical rod is in up-down sliding fit with the stamping table around the center of the stamping table; supporting springs are arranged at the tops of the guide vertical rods; a push-stop block is mounted at the top of the guide vertical rod; a vertical surface and an inclined surface are arranged on one side surface of the push stop block from top to bottom; the inclined surface is obliquely arranged in the direction far away from the blanking hole from top to bottom; the guide cross rod is in horizontal sliding fit with a bracket on the stamping table; reset springs are arranged at the outer ends of the guide cross rods; the pressing rod is connected with the punching head; the bottom end of the pressing rod is vertically aligned with the top end of the guide vertical rod; when the stamping head moves downwards and upwards, the outer end of the guide cross rod slides along the vertical face all the time, the clamping blocks clamp and restrain forging materials all the time, and the material sticking situation in the stamping process is effectively avoided.

The utility model relates to the technical field of lead frame stamping, and discloses a stamping die for lead frame production, which comprises an upper die and a lower die, a driving part is arranged between a lower die base and an upper die base, a plurality of stamping heads are arranged at the bottom of the upper die side by side, the heights of the plurality of stamping heads are sequentially reduced from the middle to the outside, and the stamping heads are arranged on the lower die base. Two positioning pieces used for flexibly fixing the lead frame are symmetrically arranged at the two ends of the bottom of the upper die, the driving piece comprises a base, and the lower die base is fixedly arranged on the base. The stamping head at the bottom of the upper die base is changed into a form that the middle is high and the two sides are gradually reduced, so that the influence of deformation of the die on the local pressure height of the upper die in the stamping process is counteracted, and the local pressure borne by pins of each row of products during stamping is improved from the original small middle pressure and large two-side pressure to the same middle pressure and two-side pressure; therefore, the lead frame stamping quality is improved.

The frequency converter shell stamping device particularly relates to the technical field of frequency converter production and comprises a machine shell, a plurality of machine legs are fixedly connected to the lower end of the machine shell, a containing plate is fixedly connected to the inner surface of the machine shell, an upper die is fixedly installed at the lower end of a hydraulic cylinder, and a conveying and oil spraying assembly is arranged on the inner surface of the machine shell. A cooling supporting assembly is arranged on the inner surface of the lower mold and the inner surface of the upper mold. According to the frequency converter shell stamping device, by arranging the oil spraying mechanism, lubricating oil is sprayed to the upper die and the lower die, meanwhile, an aluminum alloy plate in the moving process can be sprayed, friction can be effectively reduced, abrasion between the dies and materials in the stamping process is reduced, the service life of the dies is prolonged, and meanwhile, the production efficiency is improved. And the lubricating oil can improve the stability in the stamping process, reduce the risks of material deformation, wrinkles and cracks, and ensure the surface quality and dimensional precision of the aluminum alloy plate.

The invention discloses a prediction control system for wrinkling of an automobile bearing stamping part, and relates to the technical field of model prediction, and the system comprises a data collection unit which is composed of a fluctuation collection matrix and a variable collection matrix, obtains the fluctuation change data of a plate in the stamping process through the fluctuation collection matrix, and transmits the fluctuation change data to a control unit; variable data of the plate in the stamping process is obtained through the variable collection matrix; and the stamping model is established based on historical stamping data, fluctuation change data are obtained for differential analysis, abnormal data segments of the historical stamping data are determined, abnormal sound wave and vibration wave characteristics of the plate are determined, and the corrugation of the stamping part is predicted through a corrugation prediction algorithm in combination with variable data, so that a prediction result is generated. In the plate stamping process, the state change of the plate in the mold is determined by monitoring the vibration wave and sound wave change of the plate, so that the purpose of predicting wrinkling is achieved, and the stamping quality of the plate is further improved.

A seal intelligent management terminal disclosed by the present invention comprises a shell, a trigger mechanism, a turnover mechanism and a seal, the shell is provided with an identification mechanism used for biological characteristic verification for identity confirmation, the trigger mechanism is installed at the top of the shell, the turnover mechanism is installed in the shell in a sliding manner, the seal is connected to the turnover mechanism, and the seal is connected to the turnover mechanism. The seal faces the inner side of the shell when not used, the turnover mechanism drives the seal to turn over to seal a file to be sealed when the seal is used, and the shell is provided with a monitoring mechanism which conducts real-time distance measurement on the file to be sealed so as to judge whether the file to be sealed is shielded or replaced or not and conducts image collection on the file to be sealed. And a control circuit board which has positioning and communication functions and is in signal connection with each mechanism is also arranged in the shell. The device has the advantages that the biological characteristics of a user can be verified, the actual use place can be verified, and the situation that the file to be stamped is replaced in the stamping process can be avoided.

The invention discloses integrated functional lead frame production equipment and a lead frame thereof, and relates to the technical field of lead frame production, and the integrated functional lead frame production equipment comprises a first-stage straightening unit, a pre-forming unit, a pre-stamping unit, a second-stage straightening unit and a processing unit which are sequentially arranged in the feeding direction of a material plate; through the technological processes of primary straightening, pre-stamping and secondary straightening, plate residual stress concentration in the middle of the material plate is effectively reduced. In the pre-stamping process, the middle of the material plate is pressed downwards to form a height difference, so that leakage of lubricating oil is reduced, and the material plate is attached to the limitation of the supporting frame and the supporting plate. In addition, the side portion of the material plate is punched to form protruding clamping grooves, the protruding clamping grooves are connected to the surface of the supporting frame in a clamped mode, the supporting frame supports the protruding clamping grooves, the rigidity and the torque resistance of the material plate are further enhanced, the two protruding clamping grooves in the side portion of the material plate can effectively isolate vibration in the transportation process, and therefore the material plate is prevented from being damaged. And the overall stability of the material plate after pre-stamping is further improved.

The invention discloses a control system and method of an intelligent servo press, relates to the technical field of press control, and constructs a uniform stamping state representation through deep excavation and fusion of force and displacement process data streams generated in the servo press. On the basis, a double-time-scale implicit state estimation algorithm is introduced, time sequence modeling and deep analysis are carried out on weak and gradual change characteristics contained in a full-stroke force displacement curve, and therefore accurate quantitative evaluation of the implicit state of mold abrasion is achieved. Then, the quantized wear value serves as a core decision factor, a self-adaptive control mechanism based on a compensation knowledge base is driven, and an optimal process compensation strategy and a sliding block target track are dynamically generated. Therefore, the product quality consistency in the precise stamping process can be improved, the service life of the die is effectively prolonged, the production cost is reduced, and the intelligent level of stamping production is comprehensively improved.

The invention relates to the technical field of stamping machining, in particular to a high-speed stamping device for an automobile shock absorber support. Comprising a frame body and a movably-arranged straight keeping part, the stamping mechanism comprises a lower module and an upper module, two moving seats in bilateral symmetry and a supporting plate located between the two moving seats are slidably installed on the lower module, two supporting seats in bilateral symmetry are slidably installed on the supporting plate, and limiting plates are rotatably installed on the supporting seats. Through cooperation of the rotatable limiting plate and the linkage demolding structure, dynamic limiting of a plate is kept in the whole stamping process, after stamping and before the upper die block moves upwards, rigid supporting is formed by making contact with the two sides of the vertical section of the forming support in advance through the straight keeping pieces, free deformation of the material is restrained, and the stamping quality is improved. And then when the upper die block moves upwards and the limiting plate is separated from the support, the straightening piece conducts vertical straightening and shape preserving on the vertical section of the formed support in an up-down reciprocating mode, so that the forming precision of the formed support is guaranteed, meanwhile, rapid demolding is facilitated, and the overall production efficiency is improved.

The utility model provides an automobile beam stamping die easy to position, which belongs to the technical field of stamping dies and comprises a stamping component and a positioning component. The stamping assembly comprises a pedestal, a lower die is installed in the middle of the surface of the pedestal, and electric hydraulic cylinders are installed on the periphery of the surface of the pedestal. The placing groove is formed in the surface of the lower die, the guide frames are connected to the two ends of the lower die and communicated with the placing groove, after the stamping plate is placed in the placing groove of the lower die, the electric push rods installed on the surfaces of the fixing bases on the two sides of the lower die are controlled to stretch, and the electric push rods push the positioning blocks at the telescopic ends to slide in the guide frames; the positioning blocks make contact with and are fixed to the two sides of the stamping plate in the containing groove, the rapid positioning effect is achieved, and the situation that stamping parts are scrapped due to the fact that the stamping plate deviates in the stamping process is avoided.

The invention discloses an automatic stamping and bending device for automobile parts, which relates to the field of stamping equipment and comprises a rack, a lower die, an upper die, a material roll placing frame, a conveying box, a bearing rod and a stripping rod. The material roll placing frame supports a material roll and unrolls the material roll into a straight material strip, the tail end cutting piece cuts the material strip into a metal plate, and the vertical moving assembly and the transverse moving assembly in the conveying box are matched to support the metal plate and convey the metal plate to the position above the lower die. The bearing rods are arranged in the circumferential direction of the lower die, the positioning blocks above the bearing rods are matched to form a limiting opening, the metal plate stays in the limiting opening, and the metal plate is placed above the lower die after the bearing rods descend. The stripping rod is located on the inner side of the lower die, the part is jacked and pushed to be separated from the lower die after stamping and bending are completed, automatic continuous machining is achieved, and meanwhile the utilization rate of metal raw materials in the stamping process is increased.

The invention relates to the technical field of automobile part machining, and discloses an automobile part manufacturing forming machining device which comprises a machine body, a double-shaft servo motor is installed on the inner side of the machine body, one output end of the double-shaft servo motor is fixedly connected with a fixed rotating disc, and a driving block is fixedly connected to the external eccentric position of the fixed rotating disc; a movable frame is slidably connected to the outer surface of the fixed rotating disc, two driving rods are fixedly connected to the outer surface of the movable frame, two fixed cylinders are fixedly connected to the rear side of the machine body, rubber pistons are slidably connected to the interiors of the fixed cylinders, and an air inlet pipe and a conveying pipe sequentially communicate with the outer surfaces of the fixed cylinders. By means of the Bernoulli principle, chippings are absorbed in the stamping process of the movable die and the fixed die, and the problem that chippings splash and accumulate in traditional stamping machining is effectively solved. The surface of the workpiece is prevented from being scratched or polluted by chippings, and the quality and precision of the workpiece are guaranteed.

The invention discloses automatic door lock panel forming equipment and a forming process, and particularly relates to the technical field of door lock panel forming equipment, and the automatic door lock panel forming equipment comprises a base, a stamping device, a mold assembly, a supporting assembly, an oil injection assembly and an air injection assembly. Through the arrangement of the oil spraying assembly, the profiling plate can be pushed to synchronously move upwards in the door lock panel punch forming process, oil mist is evenly sprayed into the groove in the upward moving process of the profiling plate, on one hand, oil mist spraying and punching can be conducted synchronously, the volatilization loss of lubricating oil is reduced, and the production efficiency is improved; and on the other hand, the lubricating oil injection amount can be automatically adjusted according to the panel stamping moving distance, so that the problems of uneven smearing thickness, local missing or excessive smearing and the like can be avoided, abnormal abrasion of a mold is avoided, the panel forming precision is improved, and the service life of equipment is prolonged.

The present invention discloses an intelligent detection method for determining forming defects by the offset of the blank contour of a stamping part, belonging to the field of sheet metal forming quality detection. In the present invention, the offset amounts of the contour feature points of the blank in the defective state and the defect-free state are obtained through finite element simulation of the stamping process. After manually annotating the defect types, a training data set and a validation data set are obtained, and based on this, a BP neural network model is constructed and trained to obtain a defect detection model. At the stamping site, a laser rangefinder is used to measure the offset amount of the actual stamping blank contour feature points along the material inflow direction, and the offset amount is input into the BP neural network defect detection model to output the defect judgment result. The method of the present invention greatly alleviates the current manual dependence on stamping forming quality detection and has the advantages of high detection efficiency, high accuracy, and low cost.

The invention discloses an automatic taking stamping die device with a waste separation function, and relates to the technical field of stamping machines, the automatic taking stamping die device comprises a bottom plate, the top surface of the bottom plate is provided with a stamping base unit capable of realizing classified and divided conveying of waste and a target workpiece after a stamping process is completed; the top surface of the stamping base unit is provided with a stamping execution unit with a function of quickly replacing a die as required; the stamping base unit comprises a stamping base frame fixedly mounted on the top surface of the bottom plate; when the stamping driving rod descends to the preset height, the punch makes contact with a stamping blank, workpiece shaping in the first stage and workpiece cutting and separating operation in the second stage are synchronously completed, after workpiece machining is completed, the punch mounting base continues to conduct downward pressing, the material taking pressing block presses one end of the workpiece, and the workpiece is cut and separated. The other end of the workpiece is promoted to tilt and fall into the material taking movable groove, clamping stagnation of the workpiece and the punch is prevented, meanwhile, it is ensured that the workpiece is attached to the surface of the guiding protective net, and smooth proceeding of the follow-up automatic workpiece taking procedure is ensured.

The invention discloses plate stamping section quality optimization equipment which comprises a tool table, a fixing structure, a positioning structure and a machining structure, and a cooling structure is arranged on one side of the tool table. The invention further discloses a plate stamping section quality optimization technology based on the plate stamping section quality optimization equipment. The plate stamping section quality optimization technology comprises the following steps that S1, a to-be-machined plate is placed; s2, a to-be-machined plate is fixed; s3, the to-be-machined plate is cut and machined; s4, cutting machining is repeated; s5, the cut and processed plate is subjected to cooling processing; s6, the plate subjected to cooling machining is subjected to stamping machining; s7, repeating the steps; the process solves the problems that in the prior art, low-cost and high-efficiency plate stamping end face quality optimization equipment is lacked, and in the traditional plate stamping process, due to the fact that cooperative regulation and control on intrinsic characteristics and fracture behaviors of materials are insufficient, part fracture surface burrs, microcracks, warping, stress concentration, cracking and other quality problems are caused.

The invention relates to the technical field of part stamping dies, in particular to an automobile part machining stamping forming die which comprises a mounting plate, a fixed supporting structure is arranged below the mounting plate, a first mounting block is fixedly mounted on the upper side of the mounting plate, and a detachable lower die base is arranged on the upper side of the first mounting block. In the process that a sliding block moves downwards along with a movable adaptive block, the top face of the sliding block retracts into a first sliding cavity, space is reserved for stamping, when stamping is completed and an upper die block ascends, a second spring pushes the movable adaptive block to move upwards, the top of the sliding block protrudes out of the surface of a lower die base to eject a workpiece, and the top of the sliding block makes contact with an extrusion sensor to trigger an automatic oil injection pump; lubricating oil is injected into the oil injection hole through the guide pipe and sprayed to the surface of the lower die base through the oil injection groove to complete lubrication of the lower surface, the bidirectional lubrication mechanism ensures that the metal sheet is comprehensively lubricated in the stamping process, friction loss is remarkably reduced, and the product surface quality is improved.

The invention relates to a high-corrosion-resistance and heat-resistance hot-dip galvanized alloy hot stamping steel component and a preparation method, and belongs to the technical field of component production. The hot stamping steel component comprises a steel base body and a plating layer attached to at least part of the surface of the steel base body. Wherein the steel matrix comprises the following chemical components in percentage by mass: 0.15%-0.35% of C, 0.1%-0.4% of Si, 2%-5% of Mn, less than or equal to 0.05% of P, less than or equal to 0.05% of S, 0.05%-0.2% of Al, 0.05%-0.2% of V, 0.05%-0.1% of Ti, less than or equal to 0.05% of N, 0.001%-0.004% of B and the balance of Fe and inevitable impurities; the plating layer comprises the following chemical components in percentage by mass: 5%-50% of Al, 0.5%-2% of Fe, 0.1%-5% of Si and the balance of Zn and inevitable impurities. Elements Al, Si and Fe are added into a zinc-based coating to form a metal inhibition layer, the inhibition layer cannot disappear in the hot stamping heating process, cracks can be inhibited from extending into a substrate in the stamping process, and therefore the problem of liquid metal embrittlement (LME) is effectively solved.

The utility model discloses punch forming equipment for stainless steel baking tray production, which comprises a machine body and a hydraulic mechanism, a machine frame is fixedly mounted above the machine body, a punching die is mounted right above a base in an inserting manner, a first sliding sleeve is arranged on a bidirectional lead screw, a second sliding sleeve is arranged on a guide rod, and a second sliding sleeve is arranged on the guide rod. A limiting groove is formed in the contact position of the stamping die and the limiting block. Through the arrangement of the inserting blocks and the inserting grooves, the stamping die and the base form a clamping and inserting installation mode through the inserting blocks and the inserting grooves, the accurate position of the die is ensured through tight combination of the inserting blocks and the inserting grooves, and it is ensured that the stamping die can be kept stable in the stamping process through clamping of the limiting blocks and the limiting grooves at the front end and the rear end. And displacement caused by vibration or impact is prevented, the machining quality and the equipment safety are guaranteed, the stamping die is flexible and convenient to replace and adjust through the design mode, and the stamping requirements of different specifications and shapes can be met.

The invention relates to the technical field of top cover manufacturing, in particular to a multi-point anti-deformation stripping structure applied to a top cover stamping process, the multi-point anti-deformation stripping structure comprises a stripping frame of a concave structure, a double-layer limiting mechanism is arranged in the stripping frame, and a sub-frame assembly is arranged at the position, located on one side of the double-layer limiting mechanism, in the stripping frame; according to the invention, a composite stripping mode with a synergistic effect of multidirectional mechanical clamping, dynamic separation of the upper and lower molds and multi-point dynamic hammering is adopted, so that mold displacement in a demolding process is inhibited, demolding stability is ensured, demolding resistance and adsorption force can be eliminated, and residual stress in the upper and lower molds can be uniformly dispersed; the deformation risk after the top cover is formed is obviously reduced, and the top cover stripping efficiency is effectively improved.