1917 results about "Batch manufacturing" patented technology

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

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

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

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

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

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

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

The invention relates to an ALC (autoclaved lightweight concrete) and other lightweight board structure suitable for various pipelines without slotting and quick installation and a construction technology. The structure consists of an ALC standard type (3), an ALC switch box type (9), cavities (2) and (5) reserved in the board, a reserved body (8), cavities (1) and (4) reserved at the upper part and the lower part of the board, and a fixed point (19); various plate body structures have universality, and after a manufacturer is authorized, batch production can be achieved like production of ALC plates in the prior art; the method is suitable for construction of inner partition walls and outer maintenance walls of fabricated buildings and traditional buildings; by the adoption of the construction technology, the influence of whether the position of a reserved pipe of an original structure is accurate or not, design change, field adjustment and the like can be avoided, a pipeline, a switch, a socket, a strong and weak current switch box body, a heating device, a water supply centralized distributor and the like can be installed in the ALC plate wall without grooving, and the ALC plate wall is free of grooving, safe, free of garbage generation, environmentally friendly, capable of saving energy, convenient to construct and high in practicability. Economy is achieved, and wall cracking is avoided.

The full-coverage and full-process automatic production line comprises a feeding mechanism, a feeding cutting mechanism, a butt welding mechanism, a cold bending mechanism, a hole cutting mechanism, a transferring mechanism and a connecting plate welding mechanism, and the feeding cutting mechanism is used for cutting and chamfering the two ends of steel; the butt-joint welding mechanism is arranged between the feeding cutting mechanism and the cold bending mechanism and is used for performing butt-joint welding on the current steel and the remaining raw materials of the previous section; the cold bending mechanism carries out cold bending treatment on the steel; the hole cutting mechanism is arranged on a discharging path of the cold bending mechanism, and a guide pipe hole for loading a small guide pipe is formed in the steel; the fixed-length cutting mechanism is arranged at the output end of the hole cutting mechanism and is used for carrying out fixed-length cutting treatment; the transferring mechanism is arranged on the downstream portion of the fixed-length cutting mechanism and transfers the steel to a welding preset station, and the connecting plate welding mechanism conducts end connecting plate welding on the steel transferred in place. The automatic production line can meet the requirements of tunnel construction for steel hole sites, structural strength and batch production.

The utility model relates to the technical field of microfluidics, and discloses a multi-stage micro-fluidic chip, which at least comprises a first-stage collision fluid channel and a second-stage collision fluid channel, and a mixing channel of the upper-stage fluid channel is arranged as a premixing fluid channel of the lower-stage fluid channel; the first-stage collision fluid channel comprises a first premixed fluid channel and a second premixed fluid channel, a first-stage fluid collision channel is arranged between the first premixed fluid channel and the second premixed fluid channel, and the first-stage fluid collision channel enters the second-stage premixed fluid channel after collision; a second-stage fluid collision channel is arranged between the third premixing fluid channel and the fourth premixing fluid channel, and the second-stage fluid collision channel enters the mixing channel after collision. The multi-stage micro-fluidic chip has the advantages of high mixing efficiency, low shear damage, easiness in integrated packaging and batch manufacturing and the like, and the micro-fluid mixing performance and the system practicability are remarkably improved.

The invention relates to a surface type correction and processing method of an aspherical lens, which comprises the following steps of: changing a radial point location of a polishing disk participating in cutting by adopting a rotary polishing disk and lens tangent layout and through three-axis linkage of numerical control X-axis radial feeding, numerical control B-axis swinging and Z-axis approaching movement, and forming differentiation by utilizing the linear velocity gradient of the disk to remove redundant materials of the lens; and surface shape error differential correction is realized. According to the method, the polishing head does not need to be frequently replaced, over-polishing / under-polishing of traditional air bag polishing is eliminated, and the single-piece machining time is shortened; an air bag structure is omitted, the service life of consumables is prolonged, and batch fluctuation is reduced; accumulative errors are reduced through three-axis linkage, and medium-high frequency ring belt errors are restrained. The matched processing method comprises the steps of initial forming, detection, planning, correction and the like, can be quickly adapted to lenses of multiple specifications, and efficiently completes high-precision batch manufacturing of medium and large-caliber aspheric surfaces.

The invention relates to the technical field of PE bag moving, and discloses a PE bag progressive increase type bag moving mechanism which comprises an upper rack and a lower rack, a linkage bag moving mechanism is arranged on the outer side of the lower rack, a driving assembly is arranged between the linkage bag moving mechanism and the upper rack, and a middle swing rod assembly is arranged on the upper side of the end, away from the driving assembly, of the lower rack. A middle driving rod is arranged between the middle swing rod assembly and the linkage bag moving mechanism, a first inner cross beam and a second inner cross beam are fixedly installed on the inner side of the lower rack in the axis direction, and a front clamping unit, a middle clamping unit and a sealing unit are sequentially distributed on the inner side of the lower rack in the axis direction. According to the progressive increase type bag moving mechanism for the PE bags, the linkage bag moving mechanism driven by the gear motor and the middle swing rod assembly form cooperative action and are matched with ordered connection of the front clamping unit and the middle clamping unit, automatic circulation of grabbing, transferring, clamping and transplanting is constructed, the production efficiency is improved, and the requirement for industrial batch production is met.

The invention provides a method for machining a slotted hole by using a milling cutter, and relates to the technical field of PCB (Printed Circuit Board) machining, and the method comprises the following steps: determining slotted hole design parameters, selecting a matched hard alloy forming milling cutter according to a milling cutter specification experiment table verified by a large number of experiments, accurately calibrating a machining initial position through a CCD (Charge Coupled Device) visual positioning system, and adopting a milling cutter one-time drilling forming process. The method comprises the following steps: continuously cutting by matching with optimized cutting parameters, monitoring a cutting state in real time in a machining process, carrying out multi-dimensional detection on a slotted hole angle, surface flatness and dimensional precision after machining, adjusting parameters by referring to an error recording table when the slotted hole is unqualified, and carrying out re-machining through milling cutter structure optimization, a one-time forming process and standardized parameter matching. According to the invention, the defects of the traditional process are effectively eliminated, the processing specification is unified, the production efficiency and the product percent of pass are improved, the batch production requirements of high-precision PCB products are met, and the technical problems of large slot angle, concave-convex cutting points, uneven quality and the like in the traditional slot cutter processing are solved.

The invention discloses multi-station integrated processing equipment for battery connecting piece production, relates to the technical field of battery connecting piece processing, and aims to solve the problems of dispersed processing procedures, low efficiency and poor precision in the prior art. The equipment comprises a jig assembly, a conveying assembly, a drilling assembly, a rack assembly, a bending assembly and a clamping mechanism. The rack assembly provides mounting support, and the conveying assembly achieves continuous conveying of workpieces and guarantees conveying precision through a limiting strip. The drilling assembly drives a drill bit to ascend and descend through a lifting electric cylinder to be matched with a drilling motor to complete drilling, and the clamping mechanism drives a pressing block, a clamping plate and a supporting block through multiple sets of air cylinders to achieve accurate positioning and supporting of a workpiece. After the bending assembly fixes a workpiece through a press-fit air cylinder, bending plates are driven by bending air cylinders on the two sides to complete bending. Integrated continuous machining of drilling and bending procedures is achieved, machining efficiency and precision are improved, manual intervention is reduced, and the device is reasonable in structure, high in universality and suitable for large-scale batch production.

The invention discloses a shoe sole mold additive manufacturing process, and relates to the technical field of shoe sole molds, the shoe sole mold additive manufacturing process comprises the steps of early-stage data processing, printing matrix preparation, metal 3D printing, post-processing, quality inspection and finished product mold assembly, a complex structure difficult to machine through a traditional process can be achieved, and various metal materials such as aluminum alloy, stainless steel and titanium alloy are supported; the yield and quality of the parts are improved through the high-precision forming process; meanwhile, by means of the technology, optimization design of a conformal cooling water channel and the like can be achieved, so that the performance of the mold is improved, and good cost benefits are achieved when high-cost materials are used or small-batch production is conducted.

The invention discloses a motor base casting forming device and method, belongs to the technical field of motor manufacturing, and is suitable for production of motor bases for new energy automobiles. The device comprises an evanescent mode casting forming unit and a casting post-processing unit, the post-processing unit integrates a sand recycling conveying belt, a bearing buffering mechanism, a pre-cooling system, a driving assembly, a guiding-out piece and a transferring sand removing mechanism, the core is bearing pieces which are arranged in a staggered mode and provided with elastic buffering and built-in water ways, and the working states are switched in cooperation with air cylinder driving. The method is automatically achieved through the whole process of casting forming preparation, buffering receiving, sand-iron separation, precooling discharging, guiding-out and transferring and online sand removal. Through double protection of elastic buffering and water-cooling pre-cooling, impact damage and uneven cooling of castings are avoided, sand and iron are separated synchronously, the recovery rate is high, the automation degree is high, the forming precision and production efficiency of the motor base are effectively improved, and the requirements for batch production and high precision of automobile manufacturing are met.

The invention discloses a curing shrinkage compensation and forming precision control method and system for 3D printing, and relates to the technical field of 3D printing additive manufacturing, and the method comprises the steps that three-dimensional model data and printing process parameters of a to-be-formed part are obtained, and a compensation model is established and called; generating hierarchical data according to the three-dimensional model and generating target exposure information of each layer; in the printing process, target exposure information is corrected based on the compensation model and the technological parameters to obtain execution exposure information, and curing forming is completed; acquiring an intra-layer image and comparing the intra-layer image with layered data to calculate a deviation field of the current layer; and updating the compensation model according to the deviation field increment, generating a next layer of compensation quantity, and circulating until forming is completed. A deviation field is adopted to drive closed-loop updating, self-adaptive convergence of working condition drifting is achieved, critical dimension consistency, boundary fidelity and shape stability are improved, test participation experience dependence is reduced, three-dimensional collaborative correction according to contours, doses and beats is supported, and therefore repeatability of batch manufacturing of precision parts is improved.

The invention discloses a computer mainboard welding temperature correction control method based on machine learning, which relates to the technical field of intelligent control, and comprises the following steps: predicting a reference welding temperature curve by using a machine learning model based on historical operation data of reflow welding of a computer mainboard; dividing a thermal management area based on the thermal characteristics of the component; determining an optimal welding temperature curve; on the basis of the divided heat management areas, regionalization adjustment is conducted on the optimal welding temperature curve, and temperature area parameter fine adjustment strategies for the different heat management areas are generated; and based on the optimal welding temperature curve and the fine adjustment strategy, a final temperature control instruction set is synthesized, and the reflow soldering furnace is controlled for batch production. The method has the advantages that through fusion of machine learning and real-time data driving optimization, on the premise that the welding reliability is guaranteed, the production efficiency and energy consumption are intelligently balanced, and the adaptability and the intelligent level of a production line are remarkably improved.

The invention discloses a short-process preparation method of a palladium-silver-copper alloy wire with high palladium content, which comprises the following steps: 1) smelting, blowing out, refining and casting silver, copper and palladium to obtain a palladium-silver-copper master alloy ingot; 2) continuously casting the palladium-silver-copper master alloy ingot into a palladium-silver-copper alloy rod; (3) the palladium-silver-copper alloy rod is continuously rolled, and the total deformation of the palladium-silver-copper alloy rod is controlled to range from 60% to 80% till a palladium-silver-copper alloy thick wire is obtained; and 4) carrying out continuous annealing and drawing on the palladium-silver-copper alloy thick wire to obtain the palladium-silver-copper alloy wire with the diameter of 0.1-0.8 mm. By the adoption of the method, the palladium-silver-copper alloy rod with the good machining performance can be prepared, alloy wires with the tensile strength higher than 1200 MPa and the Vickers hardness larger than 350 HV can be continuously produced in batches, the cleanliness and splatability of the alloy wires both meet the first-level / A-level requirements, and meanwhile the production period is only 30% of that of a traditional technology.

A method for preparing baking soda from baking soda desulfurized fly ash comprises the following preparation steps: step 1, dissolving baking soda desulfurized fly ash in water to obtain a mixed solution A; 2, filtering the mixed solution A through microporous filter paper or a filter membrane to obtain supernate B; step 3, mixing and stirring the supernate B and a precipitant C for 1-5 hours to obtain a mixed solution D; step 4, filtering the mixed solution D through microporous filter paper or a filter membrane to obtain a supernatant E; step 5, adding 1-8% of a regulator F into the supernate E, and uniformly stirring to obtain liquid G; step 6, continuously adding aeration H into the liquid G, and adjusting the pH to be alkaline to obtain a solution J; 7, the solution J is heated, evaporated and crystallized, solid crystals are obtained and fully ground, and regenerated baking soda can be obtained; the preparation method is simple, the recovery rate of baking soda is high, and large-scale batch production can be carried out.

The invention discloses a PCBA aging test method and system, and belongs to the technical field of aging test. The method specifically comprises the following steps: S1, historical data acquisition: acquiring PCBA aging related historical data, including but not limited to voltage parameters, current parameters, core area temperature, operation duration, environment humidity, fault types and fault occurrence time during PCBA operation; s2, preprocessing the historical data: preprocessing the historical data, including removing abnormal values, filling missing values and normalizing; 24-72-hour long-time power-on loading of a traditional aging test is not needed, the test period of a single PCBA is shortened to the minute level, the production takt is greatly improved, the large-scale batch production requirement is met, and aging fault recognition is more comprehensive; and recessive aging precursors such as capacitance attenuation and welding spot microcracks can be captured, and the sudden failure risk after the product leaves the factory is reduced.

The invention provides an intelligent forming method and system for large-diameter titanium and titanium alloy pipes. The method comprises the following steps: a process setting module generates a process flow according to a pipe design requirement, divides a pipe into a plurality of forming control subareas, and sets a subarea forming target; the partition monitoring module obtains process parameters of all partitions and collects the process parameters according to the partitions; the state recognition module calculates the geometric dimension deviation of the partitions, constructs a quality deviation index and judges whether the quality deviation index exceeds the limit or not; the cross-process parameter adjusting module generates partition parameter correction and compensation according to a preset cross-process compensation relation when the quality deviation exceeds the limit, and the partition parameter correction and compensation are issued to forming equipment through the execution control module. And cross-process closed-loop forming control based on partition quality deviation is formed, so that the size precision and batch production consistency of the large-diameter titanium and titanium alloy pipes are improved.

The invention provides a high-strength and high-plasticity matched titanium-zirconium-based alloy wire rich in multi-scale eutectoid compounds and a preparation method of the high-strength and high-plasticity matched titanium-zirconium-based alloy wire, and belongs to the technical field of titanium alloy materials. According to the method, a titanium-zirconium-based raw material containing eutectoid beta stable elements is adopted, and a cast ingot is prepared through vacuum consumable smelting; grains are refined and high dislocation density is introduced through staged phase change region hot working of beta-phase region cogging forging, beta-phase region first-heating-number rolling and alpha + beta two-phase region second-heating-number rolling; and after drawing and sizing, a horizontal electric straightening machine is used for rapidly and electrically heating to separate out a nanoscale eutectoid compound, solid solution water quenching is combined for inducing a submicron eutectoid compound, and finally a finished product is obtained through grinding and polishing. The tensile strength of the prepared wire is larger than or equal to 850 MPa, the ductility is larger than or equal to 15%, matching of high strength and plasticity is achieved, the process is continuous and controllable, batch production is adapted, and high-performance domestic raw materials are provided for oral implants.

The invention relates to the field of mechanical production, and discloses a special-shaped stub bar mounting device which comprises a vibration disc arranged on the feeding side of an equipment rack. The rotating disc assembly is arranged beside the discharging end of the vibrating disc; the angle correction assembly is arranged on the side of the rotating disc assembly; an equidistant carrying assembly; a rotary reversing assembly; and assembling the components. According to the automatic feeding and assembling device, through full-process automatic connection, the problems that in traditional manual operation, feeding is slow, transferring is slow, and assembling is slow are solved, a vibration disc can continuously provide ordered material heads for subsequent procedures, and manual sorting and placing are not needed; the rotating disc assembly continuously transfers the material heads at a preset beat, and waiting between stations is avoided; the equal-distance carrying assembly synchronously acts through double clamping jaws, gapless transfer of the stub bar from the correcting station to the steering station is achieved, the whole process does not need manual intervention of core links, the installation amount far exceeding that of manual work can be completed in a single shift, 24-hour continuous operation is supported, the large-scale batch production requirement is effectively met, and the product delivery period is greatly shortened.

The invention discloses a high-toughness heat-treatment-free die-casting aluminum alloy and a performance regulation and control method, and the method mainly comprises the following steps: (1) alloy components are optimized, elements such as 8.0-11.0% of Si, 0.3-0.8% of Mg and the like and trace metamorphic elements are contained, and the impurity content is controlled; (2) during smelting, firstly adding Ti-B intermediate alloy to refine grains, then adding Sr to modify eutectic Si, and controlling the temperature and the heat preservation time; (3) controlling parameters such as die temperature and charging barrel temperature during die casting; (4) after die casting, the average cooling rate of the casting reaches 50-150 DEG C / s by regulating and controlling cooling water; and (5) paint spraying and baking are conducted on the casting, and the temperature, time and heating rate are controlled. The method does not need heat treatment, simplifies the process, reduces the cost, enables the casting to be good in toughness and uniform in performance, is suitable for batch production of large complex structural parts, and can be applied to the fields of new energy automobiles and the like.

The invention discloses a multilayer composite circuit board lamination alignment deviation traceability method, which comprises the following steps of: acquiring process parameters such as temperature, pressure, tension and alignment images in real time through a distributed multi-mode sensor array, fusing time sequence process data, and extracting interlayer alignment deviation characteristics by combining image processing and a characteristic matching algorithm; modeling a propagation path of each error source based on a causal chain knowledge base, dynamically analyzing an error contribution degree by using a causal inference engine, and outputting an error traceability and sorting result with confidence; according to the type of the dominant error source, a corresponding parameter adjusting instruction is automatically generated and executed, closed-loop control is formed, rapid diagnosis and active compensation of interlayer alignment deviation are achieved, alignment precision and process reliability in the batch manufacturing process are improved, and the method has the capacity of dynamically adapting to working condition changes.

The invention discloses an extruded thread trimming detection method, an extruded thread system and application. The method comprises the following steps: calling an impedance reference template bound with a material and a tap index, synchronously collecting steady-state alternating-current impedance of each chip groove at different depths of a thread, calculating deviation according to a groove position weight, setting two-stage threshold values to generate local or overall abnormal marks, then carrying out partitioned statistics on the continuous interval length and number of the abnormal marks, and finally, carrying out statistical analysis on the continuous interval length and number of the abnormal marks. And obtaining a thread overall quality judgment result. According to the technical scheme, the tooth crest trimming quality can be nondestructively detected in real time in the tooth trimming process on the premise that the machining takt is not affected, batch rework or scrapping caused by later spot check is avoided, and the method is suitable for thread batch production with the high quality requirement.

The invention provides a square laminated battery connecting piece bending tool, and belongs to the technical field of battery manufacturing. The tool comprises a tool bottom plate, a first bending mechanism and a second bending mechanism, the first bending mechanism conducts first-time accurate angle (such as 60 degrees) bending on a connecting piece through a rotatable bending stress application handle and an angle limiting piece, and the second bending mechanism conducts second-time accurate angle (such as 60 degrees) bending on the connecting piece through a downward-pressing fixing base and a downward-pressing bending mechanism. Through an adjustable structure and mechanical limiting, the problems that the manual bending angle is inaccurate and the consistency is poor are solved, and the device has the advantages of being high in bending precision, good in compatibility, high in efficiency and the like, is particularly suitable for research, development, verification and small-batch production of batteries, and is suitable for large-scale production of the batteries. And the device can be conveniently integrated into an automatic production line.

The invention belongs to the field of antibacterial materials, and discloses a preparation method of a composite material modified carbon-nitrogen material as well as a product and application of the composite material modified carbon-nitrogen material. In order to achieve the long-acting and efficient antibacterial performance of the nano material, g-C3N4 powder is taken and placed in methyl alcohol, zinc nitrate is added, stirring is conducted till the zinc nitrate is dissolved, then the mixture is mixed with a methanol solution of 2-methylimidazole, after the mixture is subjected to heat treatment, the mixture is mixed with a polyhexamethylene biguanide hydrochloride aqueous solution, and the nano material is obtained. A compact inert material protection layer can be grown on the surface of the material by adopting an atomic layer deposition technology. The method provided by the invention is simple to operate and can be used for batch production, the obtained composite material integrates the advantages of an organic antibacterial agent and an inorganic antibacterial agent and has long-acting and efficient antibacterial performance, and the antibacterial material obtained by the method can be applied to various fields, such as antibacterial performance modification of antibacterial plastics and textiles.

The invention provides a multi-band composite high-integration TR assembly. The multi-band composite high-integration TR assembly comprises a shell, a front multi-layer board, a back multi-layer board, a C / X / Ku band receiving and transmitting circuit, a C / X / Ku band single receiving circuit and a Ka band receiving and transmitting circuit, wherein the front multi-layer board and the back multi-layer board are connected in the shell, the C / X / Ku band receiving and transmitting circuit is connected with the front multi-layer board, and the Ka band receiving and transmitting circuit is connected with the back multi-layer board. The low-cost scheme design of an all-solid-state microwave multilayer board suitable for batch production and testing is adopted, ports and transmission line layout are reasonably designed, multi-band composite mode transmission is achieved in the form of the front face and the back face, a C / X / Ku-band transmitting circuit and an H-polarization receiving circuit are integrated on the front face, and the transmission efficiency is improved. A C / X / Ku frequency band V polarization receiving circuit and a Ka frequency band receiving and transmitting circuit are integrated on the reverse side, different functional circuits are respectively transmitted through a microstrip line and a strip line through an interface circuit structure covering 1-40 GHz and an in-board vertical transition structure, the isolation degree of different circuits is improved, mutual crosstalk between different signals is avoided, and the transmission efficiency is improved. And the functions of high integration, high consistency, ultra wide band, numerical control phase shift, numerical control attenuation and the like of the assembly are realized.