1296 results about "Stamping process" patented technology

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.

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 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.

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 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 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 utility model discloses an aluminum alloy SIM card support stamping blanking die which comprises a stamping table, an installation table is installed on the top of the stamping table, a plurality of sliding rods are installed in the installation table in a sliding mode, a buffering table is installed on the rod walls of the sliding rods together, and a plurality of buffering springs are arranged between the installation table and the buffering table. The two ends of the multiple buffer springs are fixed to the opposite side surfaces of the mounting table and the buffer table correspondingly. Through the arrangement of the multiple sets of sliding rods, the buffer springs, the limiting rods and the buffer tables, the punching head is vertically buffered in the punching process, so that the problem that burrs are generated after materials are punched is greatly reduced, meanwhile, the materials are blocked on one side through the hollow sliding blocks on the two sides in the punching process, and the punching quality is improved. And meanwhile, a control valve is matched to convey high-pressure gas into the hollow sliding block through a gas inlet pipe, and the high-pressure gas is sprayed to the surfaces of the materials through a plurality of spraying openings, so that the materials are rapidly flushed down, and the problem that the materials are clamped in the discharging opening to affect discharging is solved.

The invention relates to the technical field of intelligent manufacturing, and discloses an intelligent control system for a battery shell aluminum plate stamping production line. A data cleaning module of the system receives original sensing data of a stamping production line and executes fluctuation smoothing processing and abnormal point removing operation to generate clean data flow; the feature sequence generation module detects starting and ending event points of a stamping process based on the clean data flow, and performs splicing according to a time sequence to form a process chain and marks key process nodes; the path network creation module maps process nodes into network vertexes, and adds directed connection edges based on a node precedence relationship to construct a path network map; an intersection analysis module traverses the atlas to search for a shared vertex group, calculates an aggregation degree index and screens a core intersection; the attribute grouping module is used for summarizing association path attribute data sets according to the core intersections and executing similarity grouping operation to distribute group labels; and the control topology generation module maps the path groups to a control unit output control topology structure table according to the group labels.

The invention discloses a dry pattern transfer method for an AMB copper-clad ceramic substrate in the technical field of ceramic substrate sintering, and the method comprises the following steps: S1, manufacturing a positioning hole, and forming a process reference; s2, prefabricating a circuit pattern through a stamping process; s3, brazing material layers are printed on the two faces of the ceramic substrate; S4, the copper layer pattern and the ceramic substrate are assembled in an aligned mode; s5, carrying out high-temperature sintering on the copper layer and the ceramic substrate, and carrying out metallurgical bonding; and S6, the sintered substrate is subjected to cleaning, surface treatment and laser precision cutting. According to the method, laser positioning and micron-sized reaming are adopted, an accurate alignment reference is established, mechanical assembly errors are fundamentally eliminated, a copper circuit directly forms a preset pattern on a substrate through cooperation of a copper block pre-forming structure and an accurate brazing process, the lateral corrosion problem of a traditional etching process is avoided, and the production efficiency is improved. The size error of the product graph is reduced, and the product graph accuracy and the machine graph size consistency are improved.

The invention discloses a rapid punch forming process and die based on multiple stations. The die comprises a workbench, an upper die, a lower die, a driving assembly and a combined driving mechanism. The air cylinder drives the lower die to ascend and descend and suck blanks in a vacuum mode, the motor drives the upper die to conduct stamping, the dies are locked during stamping and accurately rotate by 90 degrees to switch stations during resetting by means of differential meshing of a groove and a plane of a tooth part, and finished products fall into a collecting box after being demolded through gravity. The problems of insufficient station switching precision, action interference and low automation degree of a traditional multi-station mold are solved, full-process automatic linkage of adsorption, punching, rotation and demolding is achieved through cooperation of pneumatic and magnetic attraction assemblies, and manual intervention is avoided. The four-station continuous punching machine has the characteristics of four-station continuous machining, motion interlocking interference prevention, accurate positioning, high efficiency and stability, the mass production efficiency and the finished product percent of pass are remarkably improved, and the four-station continuous punching machine is suitable for high-speed punching forming in the fields of automobile parts, electronic elements and the like.

The invention provides an automobile plate stamping parameter optimization method and system which are applied to the technical field of industrial automation control, and the method comprises the steps: directly converting the beat deviation of a downstream station into a physical signal, feeding back the physical signal to upstream stamping equipment, driving stamping parameters to carry out proportional adjustment, and forming closed-loop feedback. Therefore, self-adaptive optimization of the stamping parameters is realized under the condition of not depending on a complex model or a rule base, and the beat deviation of the downstream station is directly and quantitatively fed back to the upstream stamping parameters under the premise of not constructing the complex model or the rule base, so that self-adaptive optimization of the stamping process is realized, and the stamping efficiency is improved. And the preset production takt of the whole production line is effectively maintained, and waste loss is reduced.

The invention relates to the technical field of image processing, and discloses a stamping part stamping forming quality detection method, which comprises the following steps: acquiring a surface digital image of a stamping part, analyzing the surface curvature and the material thickness change gradient of the stamping part, and generating a space prior weight map; calculating the structure tensor of a pixel point, and determining the orientation and axial length ratio of an elliptical sampling neighborhood; pixel point sampling is carried out along the elliptical sampling neighborhood to obtain an initial three-valued mode code; a global feature histogram is constructed, the contribution degree is accumulated to the statistical unit, and the contribution degree is the corresponding weight value of the pixel point in the spatial prior weight map; all the global feature histograms are cascaded to generate cascaded feature vectors; and inputting the cascade feature vector into a support vector machine classification model, and judging whether the stamping part to be detected is qualified or not. According to the method, the space prior weight map is introduced, the prior knowledge of the punch forming process is fused into the feature extraction process, so that the detection focuses on the defect high-incidence area, the extracted features are more targeted, and the detection accuracy is improved.

The invention discloses a test device for detecting the pressure-bearing performance of a fire hose, and relates to the technical field of fire hose pressure-bearing detection.The test device comprises a main frame, the outer wall of one side of the main frame is fixedly connected with a side frame, and the top of the main frame is provided with a butt joint pipe used for fixedly and hermetically connecting a hose body; a fixing plate is arranged on the top of the main frame, and the butt joint pipe is fixedly connected with the fixing plate. According to the device, when a worker bends the water hose body to a certain angle and then stops bending, through the self-locking performance between a screw rod and a threaded sleeve, it can be guaranteed that the two fixing plates do not displace in the subsequent water hose body stamping process, and then it is guaranteed that the water hose body is always located at the set bending angle for pressure bearing detection; and the problems of unstable detection conditions and data deviation caused by the bending angle change due to the displacement of the fixed plate are avoided.

The invention discloses a springback compensation control system for a metal stamping part, and belongs to the technical field of metal plate forming. The system comprises a stress memory prediction module, a fractal compensation analysis module, a phase change compensation regulation and control module, a compensation decision fusion module and an execution feedback optimization module. The stress memory prediction module extracts stress evolution characteristics of the stamping process through a multi-scale memory network and a time decay attention mechanism; the fractal compensation analysis module adaptively adjusts the compensation grid density based on the fractal dimension to realize optimal configuration of computing resources; the phase change compensation regulation and control module predicts the phase change behavior of the material through the thermal-mechanical coupling constitutive model and calculates the compensation correction amount caused by phase change; the compensation decision fusion module intelligently fuses three compensation strategies by adopting Bayesian reasoning and a spatial modulation function; and the execution feedback optimization module realizes continuous optimization of the system through online learning. According to the method, the influence of three dimensions of stress history, geometric complexity and material phase change is comprehensively considered, accurate prediction and compensation of the springback behavior are achieved, and the forming precision and production efficiency of the metal stamping part are remarkably improved.

The invention provides a new energy automobile high-strength steel plate contour edge anti-warping measurement method and system, and relates to the technical field of stamping steel plate contour edge detection, and the method comprises the following steps: obtaining a contour edge region of a to-be-detected steel plate according to the steel plate type of the to-be-detected steel plate; monitoring a stamping process signal of the to-be-detected steel plate in real time, according to the stamping process signal, when it is judged that anti-warping measurement of the outline edge area is triggered, scanning the outline edge area of the steel plate borne on the lower die, obtaining target three-dimensional point cloud data of the outline edge area, taking a bearing plane of the lower die as a reference plane, and obtaining target three-dimensional point cloud data of the outline edge area; projecting the target three-dimensional point cloud data to a reference plane, and calculating a first normal distance from each target point location to the reference plane; and taking the maximum first normal distance as the actually measured reverse warping height. According to the method, the instantaneous reverse warping state after the steel plate is unloaded can be directly captured in the die bearing environment, real-time accurate measurement of the stamping process is achieved, and the structural member quality risk of the high-strength steel plate is effectively controlled.

The invention provides a display backboard stamping process optimization method and system, and relates to the technical field of process optimization. According to the method, multi-area differential mesh division is carried out on a plate finite element model, fine meshes are adopted for a high-strain small-curvature area and a high-strain area, rough meshes are adopted for a trimming allowance area, and medium meshes are adopted for other areas. The deformation behavior of the key area is accurately captured, and the reliability of simulation prediction is remarkably improved under the same computing resource. And then, reverse compensation iterative correction and rapid convergence are performed on the initial molded surface based on a springback prediction result to obtain an optimized molded surface model, and source control is directly performed for springback errors, so that the number of times and period of mold testing which traditionally depends on experience are greatly reduced. According to the method, through linkage of simulation and real-time sensing data, dynamic optimization and closed-loop control of the process window are achieved, and the forming quality and production stability of the display backboard are effectively improved.

The invention relates to the technical field of lithium battery manufacturing, and discloses a quality control method for an automatic stamping process of a lithium battery shell. According to the method, a multi-dimensional monitoring system is constructed by collecting a stamping pressure time sequence waveform, plate thickness distribution data and a mold vibration frequency spectrum signal in real time. Analyzing the pressure waveform deviation by using a dynamic time warping algorithm, and forming a coupling characteristic matrix by combining the thickness data; wavelet packet decomposition is adopted to process the vibration signal, a frequency band energy distribution spectrum is generated, and a mold structure stability coefficient is calculated. And fusing the characteristics and the coefficients to generate a quality evaluation index, and dynamically adjusting the control parameters of the stamping equipment according to the quality evaluation index to realize closed-loop control. According to the method, the limitation of single parameter monitoring is broken through, dynamic changes in the stamping process are accurately captured through multi-source information coupling analysis, factors such as plate differences and die state changes can be responded in real time, and the comprehensiveness and timeliness of quality control are improved.

The invention provides a stamping process diagram optimization design method and system based on Autoform simulation. The stamping process diagram optimization design method comprises the steps of data input and preprocessing; preliminarily generating a process diagram; carrying out Autoform simulation analysis; automatically optimizing parameters; dynamic process diagram output and knowledge base integration are carried out, defects such as wrinkling and cracking are warned in advance through Autoform multi-physical field simulation, the mold testing frequency is reduced by more than or equal to 50%, and the mold testing cost is greatly reduced; the blank holder force and the draw bead resistance coefficient are automatically adjusted through algorithms such as a gradient descent method, the blank holder force precision is improved to be within + / -5%, and manual experience dependence is reduced; through simulation-design closed-loop iteration, the mold debugging period is shortened to 1-2 weeks from traditional 4-5 weeks, and the design efficiency is improved; simulation data are directly embedded into the dynamic process diagram, version control and difference comparison are supported, and design traceability is ensured; a knowledge graph is constructed through historical simulation data, initial parameters of similar workpieces are recommended through machine learning, the repeated simulation workload is reduced by more than or equal to 30%, and the design reusability is improved.

The invention relates to the technical field of stamping control, and particularly discloses an intelligent punching control method and system for a hardware stamping die, and the method comprises the steps: carrying out the stroke feature engineering of stroke pressure time sequence data and stroke acoustic time sequence data in the hardware stamping process, so as to obtain the comprehensive state feature of the current stroke, and further, obtaining the comprehensive state feature of the current stroke; and performing anomaly detection on the current stroke comprehensive state characteristics by using the trained real-time anomaly detection model to obtain a current anomaly score, and determining whether a preliminary anomaly exists based on comparison between the anomaly score and a preset anomaly score threshold. If the initial anomaly exists, a recent anomaly score sequence and a recent high-frequency sound energy sequence are further collected, and the fault type is determined by conducting trend analysis on the two sequences. According to the method, the state of the hardware stamping die in the punching operation can be automatically monitored in real time, and potential faults are recognized and processed in time, so that stable operation of a production line is effectively guaranteed, and the product quality is effectively improved.

The utility model discloses a brake steel back blank pressing device, and particularly relates to the technical field of steel back stamping, in an initial state, a telescopic cylinder is contracted, a push-pull plate is in close contact with an elliptical surface of a connecting seat, an elastic seat is limited to pop up, a torsional spring accumulates force, after a stamping process is completed, a computer controls the telescopic cylinder to extend, the push-pull plate is far away from the connecting seat, and limitation is relieved; the rotating roller rotates under the elastic force effect of the torsional spring to drive the connecting base and the elastic base to move upwards, the elastic base pops up from the stretching-out window and the steel backing is popped up to the bearing frame, the automatic control aspect and the action from the telescopic air cylinder to the ejection of the elastic base are all controlled by a computer, manual intervention is reduced, the production accuracy and efficiency are improved, and an operator only needs to set and debug in the early stage; the push-pull plate and the telescopic air cylinder are combined to guarantee that ejection of the elastic base is limited during stamping, the elastic base can be smoothly ejected after stamping, a plurality of steel backs are stamped at a time and collected in a centralized mode, the carrying and equipment starting and stopping frequency is reduced, the working intensity of operators is reduced, and the production benefit and quality are comprehensively improved.

This invention discloses a stamping device for batch processing of mechanical parts, including a stamping mechanism, a limiting fixture, and a pushing mechanism. The stamping mechanism includes a stamping head, a stamping machine table, a stamping cylinder, a stamping frame, and a stamping die. The stamping frame is fixed on the stamping machine table, the stamping cylinder is connected to the stamping frame, and the telescopic end of the stamping cylinder is connected to the stamping head. A stamping die for use with the stamping head is connected to the stamping machine table, and a sheet to be stamped is placed on the stamping die. The limiting fixture is connected to the left and right sides of the sheet to be stamped. This device can perform batch stamping of the sheet to be stamped through the stamping mechanism. At the same time, the limiting fixture can guide and limit the sheet to be stamped during the feeding process, preventing the workpiece from shifting position and improving the stability of stamping. The pushing mechanism can feed the sheet at equal intervals during the stamping process, ensuring the accuracy of workpiece feeding and improving the stamping quality.

The invention relates to liquefied petroleum gas steel cylinder extrusion forming equipment, which relates to the technical field of liquefied petroleum gas steel cylinder manufacturing, and comprises a machine table mounted on the ground and a frame body connected with the upper end of the machine table. The stamping mechanism is arranged on the frame body, the positioning mechanism is arranged between the machine table and the frame body and used for fixing the plate, deviation is avoided in the stamping process, and therefore the forming precision and the symmetry of the end socket are improved to a certain degree. A pushing mechanism is further arranged on the machine table, the end socket can be vertically jacked up after being formed, a workpiece can be conveniently and smoothly taken out, crack screening is carried out on the end portion area of the end socket while the end socket is jacked out, crack defects can be preliminarily screened out to a certain degree through screening of the end portion of the end socket, and the quality and use safety of the formed end socket are ensured. According to the equipment, through the synergistic effect of the stamping mechanism, the positioning mechanism and the pushing mechanism, the efficient forming efficiency and the quality control efficiency of the end socket are achieved, and the machining efficiency and the product reliability are improved.

The invention relates to a rapid and intelligent stamping method for hardware products, belongs to the technical field of intelligent stamping of the hardware products, solves the problem of resilience through the combined action of temperature gradient control and partition mechanical compensation, is provided with a heating and cooling unit at a bending station, and is pre-pressed through a low-friction coating pressure plate and a high-strength spring at an outer tension area, so that the metal products are rapidly and intelligently stamped. In the inner side pressed area, a stepped material ejecting block is designed to be matched with a multi-rigidity spring set, so that partition elastic yielding is achieved, redundant materials are absorbed, wrinkling is restrained, a wedge-shaped ejector rod and a wedge-shaped floating sliding block are designed in a transition area, and springback is counteracted through material ejecting and pressing and active pre-compression in the middle and later period of bending; besides, the bending force curve is monitored in real time through intelligent closed-loop control, theoretical value deviation is compared, temperature control parameters and the bending speed are adjusted in a self-adaptive mode till the springback value is stabilized within the error range, and the problems of how to synchronously restrain bending defects and accurately control the springback value in the continuous stamping process in the prior art are solved.

The invention relates to the technical field of stamping dies, in particular to a continuous stamping die set and stamping process for stamping parts, which comprises a machine body and a vibration energy absorption block, a lower die holder is fixedly arranged on the machine body, an upper die holder is slidably arranged on the machine body, and a plurality of stations are arranged between the upper die holder and the lower die holder. Wherein the machine body comprises a first station generating impact vibration and a second station affected by vibration, and the machine body is further provided with a driving assembly driving the upper die base to move up and down; the vibration energy absorption block is a metal insert, the metal insert is arranged in the lower die base and located on a vibration propagation path between a first station generating impact vibration and a second station affected by vibration, and a geometric structure used for guiding and dissipating vibration waves is arranged on the metal insert. The high-speed stamping device has the advantages that vibration energy crosstalk of an impact station to a precision station in the high-speed stamping process can be eliminated fundamentally, and therefore the production quality of workpieces is guaranteed.

The invention provides a radiator fin stamping die and stamping forming equipment thereof. The radiator fin stamping die comprises an upper die and a lower die which are opposite. The lower side of the upper die is movably connected with an upper pressing plate frame between which an upper supporting spring is connected; and the upper side of the lower die is movably connected with a lower pressing plate frame between which a lower supporting spring is connected. An upper shearing strip penetrating through the upper pressing plate frame is arranged on one side of the lower end of the upper die; a lower limiting groove matched with the upper shearing strip is formed in the lower pressing plate frame; a lower shearing strip penetrating through the lower pressing plate frame is arranged on one side of the upper end of the lower die, the upper shearing strip and the lower shearing strip are connected end to end in the horizontal plane, and the upper pressing plate frame is provided with an upper limiting groove matched with the lower shearing strip. Upper stamping extension strips are arranged on one side of the upper shearing strip at the lower end of the upper die at equal intervals, and the lower pressing plate frame is provided with corresponding lower supporting grooves; lower stamping extension strips are arranged on one side of the lower shearing strip at the upper end of the lower die at equal intervals, and the upper pressing plate frame is provided with corresponding upper supporting grooves. And the lower end of the upper pressing plate frame is provided with a pressing strip at the upper stamping extension strip far away from the upper shearing strip. According to the invention, the stamping process is used for realizing rapid integral forming processing of the thinner fins, so that the production efficiency is greatly improved.

The invention discloses a composite connection method for a die-casting structural part and a hot-formed steel part, and belongs to the technical field of automobile part production methods. The composite connection method for the die-casting structural part and the hot-formed steel part comprises the steps that according to product requirements, the die-casting structural part is manufactured through a vacuum die-casting process, the hot-formed steel part is manufactured through a hot forming stamping process, and a transition connecting part is manufactured through a cold stamping process; the transition connecting piece and the die-casting structural piece are clamped, the transition connecting piece is attached to the upper surface of the die-casting structural piece, the thermal forming steel piece is clamped, and the thermal forming steel piece is attached to the upper surface of the transition connecting piece; self-piercing riveting is conducted on the die-casting structural part and the transition connecting part according to the self-piercing riveting quality requirement; according to the spot welding quality requirement, spot welding is conducted on the hot-formed steel part and the transition connecting part, the die-casting structural part, the transition connecting part and the hot-formed steel part are connected into a combination, and the connection precision and the connection quality between the die-casting structural part and the hot-formed steel part can be improved.

The present invention belongs to the technical field of automobile parts processing and forming, and in particular relates to an anti-cracking stamping device for new energy automobile parts, comprising: a processing platform, a lower mold is fixedly connected to the upper end of the processing platform, an upper mold is slidably connected in the vertical direction just above the lower mold, two vertical guide plates are fixedly connected to the upper end of the processing platform, a lifting block is slidably connected between the two vertical guide plates, and the lifting block is fixedly connected to the upper mold; a die pressing mechanism, which is used to drive the upper mold to move downward to realize the die pressing operation. The present invention is capable of accurately adjusting the stamping speed according to the different stages of the stamping process by providing an adjustable feeding mechanism and an electric control mechanism. In the early stage of stamping, a slower speed is adopted to give the material sufficient time to adapt to deformation, and the stamping speed is automatically increased when approaching the forming stage, thereby greatly improving production efficiency and meeting the needs of large-scale production.

The invention discloses an air conditioner sheet metal die, and relates to the technical field of air conditioner sheet metal die stamping, and the air conditioner sheet metal die comprises a die base used for stamping and bending an air conditioner sheet metal part. In the process that the die is used for conducting stamping and bending treatment on the air conditioner sheet metal part, stamping and bending treatment on the air conditioner sheet metal part is completed through mutual cooperation of the die assembly, the supporting assembly, the adjusting assembly and other components, in the stamping and bending treatment process, through transmission, grid holes can be kept supported while stamping and bending are conducted, and the stamping and bending efficiency is improved. A triangular constraint structure is formed, supporting force can be more evenly distributed around the hole wall, the situation that local stress on the bending side is concentrated and lengthened is avoided, the supporting state can be adjusted according to the stamping process, reverse confrontation is formed, the pulling effect of part of stretching stress on the hole wall in the stamping and bending process is counteracted, and the bending quality is improved. The bending side of the grid hole of the air conditioner sheet metal part is effectively limited from expanding outwards in the bending process, and the shape precision of the hole is maintained.