1197 results about "Machine building" patented technology

The invention provides a numerical control machine tool dynamic precision control method and system based on multi-axis linkage error compensation, and relates to the technical field of mechanical manufacturing, and the method comprises the steps: collecting shaft system motion parameters and real-time cutting load parameters of a multi-axis numerical control machine tool in a linkage machining process in real time; shafting motion parameters comprise displacement, speed and acceleration of each feed shaft, and cutting load parameters are obtained through inversion of main shaft current and servo driving torque; calculating a dynamic following error of each feed shaft in a linkage state based on the shaft system motion parameters; and carrying out load coupling correction on the dynamic following error by fusing real-time cutting load parameters to obtain an initial multi-axis linkage dynamic error. According to the invention, real-time precision control in the high-dynamic machining process can be realized.

The invention discloses a metal grinding machine tool grinding wheel wear compensation type intelligent control system, and relates to the technical field of mechanical manufacturing automation, and the system comprises a contact type reference detection module which is used for obtaining the initial contour and reference wear loss of a grinding wheel through discrete point measurement in a non-machining state; the multi-parameter non-contact real-time detection module is used for collecting acoustic emission, vibration and spindle current signals in the grinding process through three types of sensors; the grinding environment sensing module collects the temperature of a grinding area and the cutting fluid concentration; the intelligent control unit receives reference data and an environment signal, performs deep learning on a wear loss prediction model after multi-source data fusion, performs periodic reference calibration, analyzes the dynamic wear loss, and synchronously transmits the data to the data storage and tracing module; the executing mechanism adjusts grinding wheel feed amount compensation according to the dynamic abrasion loss; and the data storage and tracing module stores full-process data in real time. According to the system, high-precision and real-time wear compensation is achieved, the machining precision and consistency are improved, and high-end manufacturing requirements are met.

The invention discloses a mechanical part pre-deformation clamping process method based on simulation analysis, and relates to the technical field of mechanical manufacturing. The method comprises the following steps that S1, a design drawing, material characteristic parameters, blank size specifications and technical parameters of a clamp system of a to-be-machined part are collected; according to the method, an integrated simulation model of a part, blank and clamp system is constructed, blank key parameters and the constraint relation of all parts are fused, multi-field coupling simulation is combined, the theoretical deformation field pre-judgment precision is greatly improved, reliable data support is provided for pre-deformation design, a target compensation curved surface is generated through a geometric inversion algorithm, and the pre-deformation design precision is improved. By matching with a pre-deformation clamp with an adjusting mechanism, reverse pre-deformation is realized, differences of different batches of blanks are adapted, machining and rebound deformation are effectively counteracted, simulation and process parameters are corrected through a detection result by means of a closed-loop optimization mechanism, machining precision stability is guaranteed, trial cutting cost and rejection rate are reduced, and the method is suitable for machining of various easily-deformed parts.

The invention belongs to the technical field of other metal machining machinery manufacturing, and particularly relates to pipeline inner wall grinding equipment which comprises a machine body, a first guide rail is fixedly connected to the upper surface of the machine body, a first guide groove is formed in the first guide rail, and two sliding tables are slidably connected into the first guide groove; a storage box is fixedly connected to the upper surface of one sliding table, a first hydraulic cylinder is fixedly connected to one side of the storage box, a grinding wheel is arranged at the output end of the first hydraulic cylinder, a positioning table is fixedly connected to the upper surface of the other sliding table, and a limiting ring and a limiting plate are fixedly connected to one side of the positioning table. A limiting groove is formed between the limiting plate and the limiting ring, a grinding assembly is arranged on one side of the first hydraulic cylinder and comprises a motor fixedly connected to the output end of the first hydraulic cylinder, and a positioning disc is fixedly connected to one side of the motor. The problem that metal dust generated during grinding is accumulated on the inner wall of the pipeline, and the pipeline grinding quality is affected is solved.

The invention belongs to the technical field of machine manufacturing, and particularly relates to a metal part discharge machining precision control method and system.The method comprises the steps that discharge gap multi-dimensional physical parameters are sensed in real time in a multi-modal mode, high-dimensional feature extraction and data fusion are carried out, an intelligent discharge state prediction model is constructed, and on the basis of a prediction result, a metal part discharge machining precision control system is obtained. And processing parameters such as a pulse power supply, servo feeding and dielectric liquid are adjusted in an ultra-fast and self-adaptive mode, and iterative optimization of the processing process is achieved. By the adoption of the technical scheme, the machining precision, the surface quality and the consistency of the metal part can be remarkably improved, electrode loss is reduced, and the machining efficiency is improved.

The invention discloses a design method of a complex shape modifying and finishing wheel and a honing wheel for internal meshing powerful gear honing, and relates to the technical field of machine manufacturing. The method comprises the following steps: establishing a trimming wheel tooth surface numerical model, and judging whether the modification amount of the trimming wheel tooth surface numerical model meets the modification requirement or not; if yes, establishing a space coordinate conversion relation and a conjugate meshing equation of the dressing wheel and the honing wheel, and establishing a honing wheel tooth surface numerical model in combination with the dressing wheel tooth surface numerical model; according to the space coordinate conversion relation between the workpiece gear and the honing wheel and the honing wheel tooth surface numerical model, a complex modification workpiece gear tooth surface numerical model is established, and whether the modification amount of the complex modification workpiece gear tooth surface numerical model meets the modification requirement or not is judged; and if yes, a dressing wheel three-dimensional solid model and a honing wheel three-dimensional solid model are established according to the dressing wheel tooth surface numerical model and the honing wheel tooth surface numerical model respectively. According to the method, precise design and verification of the complex shape modifying and finishing wheel and the honing wheel for powerful gear honing can be achieved.

The invention discloses an industry and trade enterprise public health service resource optimization decision support system, and relates to the technical field of public health management, and the system comprises a data perception and access layer, a semantic fusion and modeling layer, a knowledge graph and risk calculation layer, an intelligent early warning and decision layer, and a feedback optimization closed loop. Multi-source heterogeneous data are collected through a protocol adapter, a unified data view is constructed through industry and trade public health field ontology semantic fusion, a space-time knowledge graph is dynamically generated, risks are deduced in combination with an improved SEIR space-time propagation model and a Monte Carlo method, visual early warning and interactive decision making are achieved based on digital twinborn bodies, and the method is applied to the field of industry and trade public health. According to the method, data islands can be broken, accurate advanced early warning of public health risks is realized, resource allocation is optimized, and the method is suitable for industry and trade enterprises with dense personnel such as machine manufacturing and electronic processing.

The invention relates to the technical field of engineering machinery manufacturing, in particular to an excavator part machining treatment device which comprises a fixing base, a support is fixedly connected to the fixing base, a driving mechanical arm capable of driving horizontal two-dimensional motion is installed at the top of the inner side of the support, and a sliding disc is fixedly connected to the lower end of the driving mechanical arm. The bottom face of the sliding disc is fixedly connected with a driving cylinder, and the lower end of the driving cylinder is fixedly connected with an inverted-U-shaped frame. According to the excavator part machining treatment device, three core procedures of drilling, inner wall grinding and end face grinding are integrated, through cooperative control of the driving mechanical arm, the driving air cylinder and the motor, full-process part machining can be completed without equipment replacement or repeated clamping, the part transferring and positioning time is effectively shortened, and the machining efficiency is improved. The problem that traditional step-by-step machining is low in efficiency is solved, and the machining efficiency is improved.

The invention discloses a precision clamp device for machining special-shaped workpieces in mechanical design, and relates to the technical field of mechanical manufacturing, the precision clamp device comprises a base main body, a reference bottom plate, a plurality of rotating shafts and corresponding elastic clamping blocks, the reference bottom plate is arranged on the base main body, and positioning slots are formed for the rotating shafts to be rotatably mounted; the rotating shafts can independently rotate and drive the elastic clamping blocks to deflect to adapt to the irregular surface of the special-shaped workpiece, the rotating shafts comprise rotating blocks matched with the inserting grooves and adjusting sliding grooves extending along the shaft length, and the rotating shafts are evenly distributed on the circumference of the reference bottom plate; an elastic clamping block is connected with a transmission screw and an adjusting nut, a linear sliding block is arranged to be matched with an adjusting sliding groove, a self-adaptive contact is arranged on the side, facing the clamping center, of the elastic clamping block, the contact is provided with an elastic protection contact end cover, and a stress sensing connecting rod and an elastic buffering spring are installed in the contact. A movable rod penetrates through the base body, one end of the movable rod is connected with a control handle, the other end of the movable rod is connected with a self-adaptive pressing plate, the movable rod is sleeved with a reset spring, the pressing plate is provided with a profiling abutting block, and the clamping stability is improved.

The invention discloses a real-time correction control system for machining errors of a metal grinding machine tool, relates to the technical field of mechanical manufacturing and precision machining, and aims to solve the problems of incomplete error detection, modeling misalignment and correction lagging of a traditional system.The real-time correction control system comprises the steps that a multi-source error detection module collects geometric error data, thermal deformation error data and grinding wheel abrasion error data in real time; the multi-source error coupling modeling module receives data and then constructs a coupling model representing error interaction, and a built-in dynamic parameter self-adaptive correction unit can adjust model parameters according to real-time data to solve dynamic working condition parameter drift; and the real-time correction control module generates a real-time correction instruction according to a comprehensive error output by the model and sends the real-time correction instruction to a machine tool execution mechanism. The system improves the error calculation precision and the machining precision stability, and reduces the machining rejection rate.

The invention relates to the technical field of machine manufacturing, in particular to a range extender hot jacket station floating pressure head mechanism which comprises a driving mechanism, a floating positioning mechanism and a pressing mechanism. The floating positioning mechanism is arranged between the driving mechanism and the downward pressing mechanism and used for achieving self-adaptive floating positioning of the pressing head in the downward pressing process. The driving mechanism drives the pressing mechanism to move in the vertical direction. And the pressing mechanism is used for grabbing and pressing the stator, so that the stator is thermally sleeved into a shell arranged below. The floating positioning mechanism enables the pressure head to adaptively float and position in the downward pressing process, compensates the assembly error of the stator and the shell, ensures that the stator is stably and accurately pressed into the shell, and avoids part damage or assembly failure caused by unbalance loading.

The application discloses a metal plate spraying device and spraying process for mechanical manufacturing, and relates to the technical field of plate production. The device comprises a raw material storage mechanism, which is used for storing a metal plate to be sprayed. The metal plate to be sprayed is hung on the raw material storage mechanism through a hoisting mechanism. The hoisting mechanism comprises a moving assembly, the lower end of the moving assembly is connected with two mounting assemblies through a cross bar frame, the mounting assembly comprises two arc-shaped strips, the two arc-shaped strips are driven by a power assembly to extend from the two sides of the metal plate in sequence and are connected with the through holes of the metal plate, so that the metal plate is fixed from the two sides. The application realizes the continuous transmission and automatic mounting of the metal plate through the suspension chain conveyor and the automatic hoisting mechanism, significantly improves the spraying operation efficiency, and overcomes the defects of slow speed and low efficiency of traditional manual spraying.

The invention discloses a multi-blade large-size cutterhead wear prediction and early warning method and device and a medium, and relates to the technical field of machine manufacturing and control, and the method comprises the steps: S1, multi-source heterogeneous data synchronous collection and feature fusion; s2, constructing a single blade wear-life collaborative prediction model; s3, carrying out multi-blade collaborative wear distribution modeling and dynamic compensation; and S4, online adaptive learning and prediction robustness enhancement are carried out. According to the method, the multi-blade prediction model is deduced through single-blade modeling, model comparison verification is combined, the abrasion trend is automatically recognized, the service life of the tool is accurately predicted, the tool utilization rate can be effectively increased, the machining cost can be effectively reduced, and reliable technical support is provided for efficient machining of large machine tool cluster control.

The invention relates to the technical field of machine manufacturing, and discloses a combined machining device with cutting and hot melting drilling, which comprises a base and a pipe, and a machining mechanism and a conveying mechanism are arranged on the base; the machining mechanism comprises a fixing frame fixedly connected to the top face of the base, and an electric push rod is fixedly connected to the top face of the fixing frame. The machining mechanism is arranged, under the cooperation of two hinge plates and a first adjusting plate, the angles of the first adjusting plate and a second adjusting plate are changed, then the angles of a cutting disc and a hot melting drill bit are adjusted at the same time, workpieces of different materials and different specifications can be precisely cut and drilled, and the machining efficiency is improved. The angle can be adjusted according to different machining requirements, the optimal cutting and drilling scheme is found, after the angle is adjusted according to the machining requirements, the electric push rod can be driven to drive the movable frame to move downwards, machining cutting or hot melting drilling is conducted on the pipe, and combined machining of different modes is achieved.

The invention belongs to the field of machine manufacturing, and discloses a deep hole inner molded surface profiling boring direct-drive intelligent control cutter system which comprises a cutter assembly, a rotary drive assembly and a sensor assembly. A rotary driving shaft of the rotary driving assembly is connected with an axial gear of the right-angle bevel gear pair, the inner side of a radial gear is connected with a driving nut, and the base plate and the tool apron are connected through a ball screw, so that a blade on the tool apron is driven to achieve radial feeding. The sensor assembly comprises a force sensor, a temperature sensor and a vibration sensor, signals are collected in real time and fed back to the drive control circuit board to control the rotary drive assembly, and therefore the profiling boring precision of blade feeding is improved. Direct driving and intelligent sensing control are combined and embedded in the profiling adjusting type boring cutter, a cutter transmission chain is greatly reduced, the transmission rigidity, the control precision and the response speed are improved, and therefore the performance requirements of a deep hole complex inner profile for high precision, high quality, high efficiency and high cost performance are met.

The invention provides a system and a method for accurately removing a coating at a mounting position of a sprayed workpiece, and relates to the technical field of surface treatment in mechanical manufacturing, the system comprises a visual scanning module, a positioning module, a control system, an execution mechanism, a real-time monitoring module and an auxiliary device, the method comprises a system initialization and calibration step, a visual scanning and hole site three-dimensional positioning step, a path planning and laser parameter adaptation step, a multi-mechanical-arm collaborative operation deployment step, a coating removal execution and real-time regulation and control step and a quality detection and correction step. According to the method, a dynamic coupling adjustment mechanism of the density between the track points and the laser parameters is achieved, the scanning rate is increased to improve the efficiency, the efficiency and quality dual-optimization target is achieved, and a basis is provided for efficient and intelligent laser coating removal.

The invention discloses an air inlet casing full-process simulation closed-loop optimization method, which relates to the technical field of mechanical manufacturing and processing, and comprises the following steps: simplifying an air inlet casing model; selecting a plurality of key procedures from the whole procedures; according to process parameters and boundary conditions of the key process, grid division is carried out on the simplified model, and a corresponding finite element simulation model is constructed; sequentially simulating the finite element simulation model according to a key process sequence, correcting a simulation result according to deformation data of actual processing, transmitting the corrected simulation result to a next key process for model simulation until simulation and correction of all key processes are completed, and constructing a full-process simulation prediction model; performing iterative optimization on multiple parameters in the whole-process simulation prediction model to obtain an optimal parameter combination; and correcting the simulation model according to the deviation between the actual processing data and the simulation result under the control of the optimal parameter combination. According to the method, high-precision prediction of various complex manufacturing processes can be realized, and the manufacturing precision is improved.

The invention relates to the technical field of machine manufacturing, in particular to a multi-specification small bar hot forging auxiliary feeding mechanism which comprises a feeding mechanism, a heating mechanism, a pushing mechanism, a transferring mechanical arm and a forging and pressing mechanism, a tubular heating furnace is used for heating the middle section of a bar, and a first feeding clamping jaw and a second feeding clamping jaw are used for clamping the bottom of the bar. After a four-degree-of-freedom mechanical arm clamps a bar to a hexagonal chuck on one side, the bar continues to be clamped from a material receiving table to be put into a hexagonal chuck of a workbench on the other side, and a previous heated bar is taken out to be put into a storage table; the tubular heating furnace is arranged between the hexagonal chucks of the two workbenches, so that bars can conveniently enter the tubular heating furnace at intervals, and the energy utilization efficiency is improved; the bottom of a bar is clamped, pushed and forged through the first feeding clamping jaw, the second feeding clamping jaw and the rotating unit, the bar of the six-degree-of-freedom mechanical arm is received through a cylindrical groove in the rotating wheel, and connection of the bar between the different clamping jaws is achieved.

The invention discloses an intelligent low-stress sand casting method for a high-end numerical control machine tool basic large part, and belongs to the crossing field of mechanical manufacturing automation and a sand casting technology. According to the intelligent low-stress sand mold casting method for the basic large part of the high-end numerical control machine tool, different sand mold structures are selected for manufacturing parts with different moduli based on the obtained machine tool structural part model. A multi-material hollowed-out intelligent sand mold is selected for forming a high-modulus part, and the part of the sand mold comprises three main parts, namely a surface contact area, a hollowed-out sand mold area and an intelligent control unit. The part with the low modulus is formed by an intelligent compact sand mold, the sand mold of the part is based on a traditional compact sand mold, and a heating material and a control system are arranged in the sand mold. According to the method, the solidification process of each part of the machine tool casting can be intelligently regulated and controlled, so that low-stress casting of the casting is realized, the time required by subsequent aging is shortened, the production responsivity of the machine tool casting is improved, and production and development of a high-precision and high-stability machine tool are promoted.

The invention relates to the field of mechanical manufacturing product installation, in particular to a method for measuring internal coordinate point positions during installation of a sealed box body. Comprising the following steps: S1, off-line measurement of a box body; s2, establishing a box body installation reference coordinate system; s3, fitting and calculating a theoretical three-dimensional coordinate of an off-line target point outside the box body in the installation reference coordinate system; s4, carrying out online posture adjustment and measurement on the box body; and S5, calculating and analyzing measured values of design points in the box body. According to the method, the accurate mapping relation between the off-line coordinate system and the installation reference coordinate system is established, the coordinates of the internal design point positions of the box body are strongly correlated with the coordinates of the external off-line target points, and finally, the three-dimensional coordinate actual measurement values of the internal design point positions under the unified installation reference system are accurately and inversely calculated through the external actual measurement values. Therefore, quantitative and verifiable accurate measurement results are output.

The utility model relates to an end effector capable of moving stably and accurately, which comprises a mounting seat, and is characterized by further comprising a first driving source, a second driving source, a third driving source, a fourth driving source, a fourth driving source and a fourth driving source, and the first driving source is fixedly arranged at the top of the mounting seat and used for providing locking driving force; the angle free adjusting mechanism is movably inserted into the mounting seat; the first driving source can lock, clamp and fix the angle free adjusting mechanism; and the suction cup assembly and the output end of the free angle adjusting mechanism are coaxially arranged, and the free angle adjusting mechanism can enable negative pressure adsorption to be formed between the suction cup assembly and a contact part. The manipulator can accurately grab and carry parts, can be widely applied to the industries such as mechanical manufacturing, electronic assembly and logistics, and improves the automation degree and the working efficiency in the production process.

The application belongs to the technical field of other metal processing machinery manufacturing, in particular to a pipeline inner wall polishing equipment. The upper surface of the machine body is fixedly connected with a first guide rail. A first guide groove is arranged in the first guide rail. Two sliding tables are slidably connected in the first guide groove. The upper surface of one of the sliding tables is fixedly connected with a storage box. One side of the storage box is fixedly connected with a first hydraulic cylinder. The output end of the first hydraulic cylinder is provided with a polishing wheel. The upper surface of the other sliding table is fixedly connected with a positioning table. One side of the positioning table is fixedly connected with a limiting ring and a limiting plate. A limiting groove is arranged between the limiting plate and the limiting ring. One side of the first hydraulic cylinder is provided with a polishing assembly. The polishing assembly comprises a motor fixedly connected with the output end of the first hydraulic cylinder. One side of the motor is fixedly connected with a positioning disc. The pre-treatment assembly and the adsorption roller are arranged to solve the problem that the metal dust generated by polishing is accumulated on the inner wall of the pipeline, affecting the polishing quality of the pipeline.

The present invention relates to the technical field of mechanical manufacturing, and disclosed are a centering fixture, machining tool and machining method for a hollow shaft. The centering fixture comprises a center rod; truncated-conical holes for matching tool centers are formed at two ends of the center rod; a first end of the center rod is provided with a truncated-conical boss for abutting against one end of the hollow shaft; a truncated-conical plug for abutting against the other end of the hollow shaft is movably fitted over a second end of the center rod; the truncated-conical plug and the center rod rotate synchronously; and a power pin for fitting a transmission rod of the tool centers is provided on the truncated-conical boss. The centering fixture for a hollow shaft provided by the present invention uses the friction force and clamping force between tool centers and a center rod of a centering fixture, and also increases a mechanical transmission mode by means of fitting of a power pin provided on the centering fixture and a transmission rod of the tool centers, thereby avoiding the problem of rotation delay of the hollow shaft during machining, and improving the finish machining effect of the hollow shaft.

The invention relates to the technical field of machine manufacturing, and provides a stainless steel rocket storage tank barrel section forming method, device, equipment and medium, the method comprises the steps that an X-ray diffraction test is conducted on a sample, and the martensite volume fraction and dislocation density are obtained based on an obtained diffraction curve; constructing a first function based on the martensite volume fraction, the corresponding environmental parameters and the deformation amount of the deformed sample; obtaining yield strength according to the dislocation density, and constructing a quantitative model according to the yield strength and a first function; and actual operation parameters are obtained and input into the quantitative model, corresponding optimal operation parameters are obtained, and the rocket tank cylinder section is manufactured. According to the method, the base metal and the welding seam are deformed at the same time by adopting the obtained optimal operation parameters such as low-temperature parameters to conduct a low-temperature deformation method, so that the base metal and the welding seam are both subjected to deformation strengthening, the joint strength coefficient of the cylinder section welding seam is improved, the integrity and reliability of the component structure are improved, resource waste is reduced, and the production efficiency is remarkably improved; and the comprehensive performance of the rocket tank is improved.

An unloading method unloads a sheet metal machining product produced on a sheet metal working machine. The method includes: supplying the machining product to a supply device for unloading with a position and an orientation defined in a coordinate system of the supply device; moving an unloading member of the unloading device with a transfer movement into a transfer position on the machining product supplied to the supply device for unloading; calibrating, before the machining product is unloaded from the supply device, the numerical unloading control of the unloading device; and unloading the machining product from the supply device by the unloading device. The unloading of the machining product is controlled by the programmable numerical control which includes the programmable numerical unloading control of the unloading device and in which the coordinate system of the supply device and the similar coordinate system of the numerical unloading control are stored.

The invention discloses a cast iron cylinder sleeve structure and alloy component optimization method based on friction and wear performance prediction, and belongs to the technical field of material science and machine manufacturing. The problems that a traditional cylinder sleeve alloy design method is low in efficiency and the material performance of the designed cylinder sleeve alloy is limited are solved. The method comprises the following steps: collecting an existing large-cylinder-diameter engine sample, and carrying out metallographic characterization and microhardness test on an engine cylinder sleeve to obtain cylinder sleeve structure characteristics and alloy component data; the wear volumes of different parts are obtained through a friction wear experiment, and then the wear rate is calculated based on the wear volumes. After tissue characteristic data, alloy component data and frictional wear test data of the cylinder sleeve are collected, the data are imported into different machine learning models, the models learn the corresponding relation between the tissue characteristic data and the frictional wear performance of the existing cylinder sleeve, and optimization of material tissue and alloy components is guided according to the prediction result of the optimal model. The method can be applied to optimization of cylinder sleeve structures and alloy components.

The invention belongs to the field of artificial intelligence and industrial finite element analysis software, and particularly relates to an LLM agent-based Abaqus finite element modeling code generation method and device. According to the method, high-precision and high-reliability finite element analysis script generation is realized through construction of an instruction-code pair database, semantic retrieval and instruction reasoning, code generation and verification and lightweight model deployment. Comprising the following steps: constructing an instruction-code pair database; performing semantic retrieval and instruction reasoning; code generation and verification; and lightweight model deployment. By using the method, the accuracy and the reliability of finite element analysis script generation can be effectively improved, and the threshold and the cost of an engineering simulation task are remarkably reduced. The industrial finite element analysis software script generation method based on the large model agent can be widely applied to finite element analysis tasks in the fields of aerospace, machine manufacturing and the like.

The invention discloses a self-adaptive buffer conveying mechanism for micro part assembly, and relates to the technical field of material conveying in machine manufacturing. The feeding device comprises two mounting plates, the two mounting plates are symmetrically distributed, feeding mechanisms are arranged in the middles of the opposite sides of the two mounting plates and used for conveying the miniature parts, and each feeding mechanism comprises an adjusting assembly and an adjusting assembly, and the adjusting assembly comprises two U-shaped rails arranged in the middles of the opposite sides of the two mounting plates; after a miniature part falls into the U-shaped rail, the silica gel buffer layer in the middle of the rail can absorb impact energy generated by falling of the part through deformation, the part is prevented from directly colliding with the hard rail, meanwhile, the polyurethane elastic barrier strip on the upper portion of the U-shaped rail can achieve 0-30-degree self-adaptive overturning through the miniature torsional spring according to the width of the part, and the part can be prevented from falling off. The problem that the damage rate of parts in an existing hard conveying rail is 3%-5% is effectively solved, the damage rate of the miniature parts can be controlled to be at the low level, and the integrity of the parts in the conveying process is remarkably improved.

The invention discloses a crankshaft conveying and framing beat control method based on multi-station cooperation, and relates to the technical field of mechanical manufacturing automation control, and the method comprises the following steps: collecting the action time of each station, the signal arrival time and the stay time, building a unified time axis, marking the peak value and the valley value of the action curve of each station, and generating a beat phase band; the time rhythm is used for representing whole-line time rhythm; and aligning the starting point and the ending point of the action of each station one by one according to the beat phase belt, identifying the abutting area and the neutral gear area between the adjacent stations, and generating a delay fingerprint list for recording the time sequence deviation characteristics between the stations. According to the method, multi-station time sequence coordination is achieved through a unified time axis and a beat phase belt, the station rhythm is dynamically adjusted through delayed fingerprints, phase dislocation indexes and a beat slip list, beat conflicts and oscillation are eliminated through double-track instruction issuing and an inverse-phase breathing window, the beat error is reduced by 60%, the synchronization precision reaches the millisecond level, and the production stability is improved.

The invention discloses a mechanical part cost decision support system and method driven by an industrial knowledge graph, and relates to the technical field of mechanical manufacturing cost decision, and the system comprises a multi-modal data collection module which collects multi-type data of the whole process of mechanical manufacturing and processes the multi-type data to form a unified set; the multi-modal knowledge graph construction module constructs a graph and establishes an updating mechanism; the intelligent reasoning decision module inputs new part parameters to screen an optimal scheme; the dynamic optimization adjustment module collects data in real time to update a result reversely; the decision result output module generates a visual report and supports multi-format export; according to the method, manufacturing data dispersion pain points are broken, multi-source data fusion precipitation and knowledge systematization are realized, and accurate support is provided for cost decision making; meanwhile, an optimal scheme is screened through multi-algorithm cooperation and multi-target evaluation, field data are collected in real time to dynamically optimize decisions, the crossing from static estimation to dynamic optimization is achieved, the core target is effectively balanced, and the economical efficiency and the stability are improved.