20results about How to "Avoid roughness" patented technology

The application belongs to the technical field of teaching practical training scene simulation control, and specifically discloses a teaching practical training scene simulation control method based on PLC technology, which comprises the following steps: constructing a fault mode library containing low, medium and high levels, randomly distributing faults from the low fault level, loading a simulation scene, collecting fault identification response time and adjustment operation sequence, verifying diagnosis accuracy and evaluating fault recovery degree after executing the sequence, generating a practical operation qualification degree according to different conditions, then judging promotion and dynamically adjusting the fault level according to the qualification degree, and generating a student comprehensive ability evaluation report based on the qualification degrees in the previous iterations; the application constructs a fault mode library containing low, medium and high fault levels based on historical power operation data, and dynamically adjusts the fault level to be distributed subsequently according to the practical operation qualification degree, thereby overcoming the defects of static preset fault situations, and realizing a personalized and gradual skill upgrading path.

The present invention is applicable to the technical field of photovoltaic cell electroplating, and provides a photovoltaic cell horizontal electroplating device and method. The photovoltaic cell horizontal electroplating device includes: a plating tank filled with a plating solution, provided with an inlet and an outlet opposite to the inlet; an anode member arranged in the plating tank and located below the liquid level of the plating solution; a cell moving mechanism, used to drive the cell to move from the inlet to the outlet, so that the cell moves relative to the anode member in the plating solution to achieve electroplating; a cathode conductive component, including a rotating moving part and a plurality of cathode conductive probes arranged on the rotating moving part, and the rotating moving part can drive the plurality of cathode conductive probes to rotate synchronously, so that at least one cathode conductive probe contacts the cell and keeps synchronous movement with the cell. The photovoltaic cell horizontal electroplating device provided by the present invention can effectively improve the coating quality of the photovoltaic cell, and can greatly reduce the overall length of the photovoltaic cell horizontal electroplating device.

The present application relates to the technical field of motion data recovery, and provides a human motion data recovery method and device based on tensor representation, which can better maintain the spatial structure and time structure of the human motion data to be recovered by determining the third-order tensor of the human motion data to be recovered. Considering the time sequence of the human motion data to be recovered, a frame difference regularization term is introduced into the objective function, so that the non-smoothness in the recovery process of the human motion data to be recovered can be avoided. The objective function combines the tensor core norm term of the recovery variable and the frame difference regularization term of the recovery variable, simultaneously considers tensor tube rank minimization and frame difference smoothing, can significantly reduce the recovery error, and obtain a more superior recovery result.

The utility model discloses a north-seeking gyro inclinometer probe rod assembly which comprises an antenna positioning connector, an antenna protection cover is installed on the antenna positioning connector, an antenna insulation bottom plate is installed on the outer side of the antenna protection cover, a sealing sleeve is installed at the upper end of the antenna positioning connector, and a probe rod is installed on the sealing sleeve. The antenna positioning joint is provided with a socket joint at the sealing sleeve; the bottom end of the antenna positioning joint is provided with a measuring system inner pipe, and the measuring system inner pipe is internally provided with a motor, a motor base and a photoreceptor; the shaft end of the motor is connected with the shaft end of the connector through the coupler, the slip ring and the bearing are installed at the shaft end of the connector, the gyroscope connecting sleeve is installed at the lower end of the connector, the gyroscope is installed at the lower end of the gyroscope connecting sleeve, and the outer side of the gyroscope is sleeved with the measuring system outer pipe. According to the utility model, the measuring system outer pipe and the sealing sleeve are arranged, and the components of the instrument are arranged in the measuring system outer pipe, so that the problem of unsmooth surface of the instrument caused by repeated friction and the like in the drilling and measuring process can be avoided.

The utility model discloses a kind of waterproof inner box of safe deposit box, the waterproof inner box of this safe deposit box includes: box, lid and waterproof structure, lid and box top open mouth corresponding cooperation;Waterproof structure is set in the top wall inner surface of lid corresponding to the end face of box top open mouth;Box is provided with abutment structure, abutment structure is set in the open edge of box top, and the top side surface of waterproof structure and abutment structure is in contact;Waterproof structure is set as square sealing rubber strip of closed ring connection corresponding to abutment structure;When lid is buckled to box, the bottom side surface of sealing rubber strip and the top side surface of abutment structure are in contact fully;The cross-sectional width of sealing rubber strip is greater than the cross-sectional width of abutment structure.Safe deposit box waterproof inner box is mechanically buckled by lid and box, forms initial closed space, prevent external water vapor or liquid directly intruding, and direct contact of waterproof structure and open end face, create first sealing layer, and water penetration is blocked using physical contact.

The utility model discloses a kind of knife dies for eliminating filmless paper die cutting scrap edge, comprising: die holder, the die holder is opened with multiple forming areas, the forming area is provided with ring cutter, the inside of the ring cutter is provided with and the first elastic member matched with ring knife cutting shape, outside is provided with second elastic member, the first elastic member and second elastic member are used to pop out blanking after ring cutter cutting. By dividing the blade angle into two sections, the knife die life is ensured, and the blade position is avoided to squeeze the material, the edge of the part is improved, the die cutting knife edge is not uneven, the sufficient blade height ensures the vertical pressure during cutting, and sufficient buffer is provided for the paper to avoid wrinkles.

The present application relates to the technical field of ultra-precision machining control, and particularly relates to a modal controller generation method for a nano-positioning platform, a medium and equipment. The present application performs zero-pole decomposition on a transfer function of a controlled object, separates stable zero points, unstable zero points, non-resonant poles and resonant poles, constructs a desired inner loop closed-loop transfer function, retains the stable zero points, the unstable zero points and the non-resonant poles, and replaces the resonant poles as a whole with high-damping desired poles, inversely solves to obtain a modal controller structure, introduces zero-pole cancellation constraints to eliminate controller instability caused by unstable zero points, introduces order constraints to ensure causal realizability, applies constraints with a damping ratio greater than 0.1 to the desired poles and the introduced new zero points respectively, and outputs an inner loop modal controller. The present application realizes simultaneous suppression of multiple resonant peaks, gets rid of dependence on a low-order model, ensures stability, realizability and smoothness of a control signal of the controller, and significantly improves control bandwidth and dynamic performance.

The present invention provides a method for preparing an epitaxial GaN HEMT high-voltage device on a SiC JFET wafer, the method comprising: growing a buffer layer and an n-SiC epitaxial layer from bottom to top from an obliquely cut n+SiC substrate to manufacture a SiC epitaxial wafer; treating the surface of the SiC epitaxial wafer to form a P-well and n+SiC contact region to manufacture a SiC JFET structure; performing treatment to form epitaxial graphene; performing epitaxial growth on the surface of the epitaxial graphene to obtain a SiC / GaN hybrid epitaxial wafer; and respectively taping out SiC JFET and MIS-recessed gate HEMT HyFET devices, and SiC JFET and P-GaN HEMT HyFET devices through SiC / GaN hybrid epitaxial wafers that do not contain a P-GaN cap layer and contain a P-GaN cap layer. This method avoids the surface of the GaN HEMT epitaxial layer being too rough, thereby improving the material mobility and square resistance quality.

The invention relates to the field of workpiece machining, and discloses a workpiece surface trepanning device which comprises a workbench, a containing groove is formed in the top face of the workbench, a discharging hole is formed in the inner bottom face of the containing groove, a sliding groove is formed in the rear side of the workbench, and a dust collector is fixed to the inner wall of the discharging hole. A sliding groove is formed in the top face of the workbench, a collecting box is slidably arranged on the inner wall of the sliding groove and connected with a dust collector through a pipeline, a fixing assembly is arranged on the inner wall of the containing groove, a placing plate is fixed to the inner wall of the containing groove, and a driving assembly is slidably arranged on the top face of the workbench. According to the aluminum scrap removing device, through cooperation of the dust collector, the draught fan and the scraping plate, aluminum scraps generated during workpiece drilling and after drilling can be effectively removed, the quality problems that the surfaces of drilled holes are not smooth or the hole diameters are not uniform and the like due to the fact that the scraps generated during drilling remain around the drilled holes or in the drilled holes are effectively solved, and therefore the scraps can be collected, recycled and reused.

The invention relates to the technical field of cosmetic preparation, and discloses a jellyfish active protein-containing hand mask liquid and a preparation method thereof, the jellyfish active protein-containing hand mask liquid comprises 15-30% of a humectant, 10-15% of a bacteriostatic agent, 5-10% of an active additive, 10-15% of other auxiliary materials, and the balance of purified water. The hand mask liquid provided by the invention is added with the natural O-type collagen and mucoprotein extracted from jellyfish, plays a key role in maintaining the biological elasticity and compactness of skin, and also has the effects of moisturizing, moistening, resisting wrinkles and preventing aging. The use method of the hand mask liquid provided by the invention comprises the following steps: cleaning both hands, wet-compressing for 5 minutes by using a hot towel to fully open pores of hand skin, smearing the prepared hand mask liquid on the both hands, lightly and uniformly massaging, wearing disposable gloves, keeping for 15-20 minutes, and finally washing with warm water.

The invention discloses cutting equipment based on aluminum profile machining and a removing method thereof. The equipment comprises a base, a placing rotary table, a cutting mechanism, a control mechanism and a brushing and sweeping mechanism, and a horizontal driving part is arranged at the penetrating position of the bottom of the placing rotary table and the bottom of the base; the cutting mechanism is arranged at the top of the placing turntable and comprises a vertical adjusting part and a cutting part; the control mechanism is connected to the bottom of the placement turntable in a penetrating manner and comprises a connecting part and a control part; the brushing and sweeping mechanism is connected to the top end of the base in a penetrating mode from the bottom of the base and comprises a brushing and sweeping part and a linkage part. By means of the brushing and sweeping mechanism, when a cutting task is executed, the brushing and sweeping mechanism is used for brushing and sweeping knife seams of a cutter, the situation that the cutter is abraded by cut aluminum slag and the cutting face of an aluminum profile is not smooth is avoided, the brushing and sweeping part synchronously executes angle changes along with the cutting part, cutting operation is not interfered, and safety and reliability of the cutting operation are guaranteed.

The utility model discloses a 3D printing spray head with self -cleaning anti -blocking structure belongs to 3D printing equipment component technical field, in view of the low durability of existing 3D printing spray head nozzle, easy to block, influence printing efficiency and quality's problem. It includes 3D printing spray head body, and 3D printing spray head body bottom is equipped with mounting seat, and the outer thread of mounting seat bottom is detachably connected through the inner thread with the nozzle, and the nozzle is made of the high temperature resistance base body of ceramic base composite material and the pure diamond film anti -sticking coating that evenly covers its inner wall constitutes, and 3D printing spray head body lateral wall is equipped with the radiating fin board through bolt, and the other side of radiating fin board is equipped with the radiating fan, and 3D printing spray head body integrates intelligent sensing module, and triggers the self -cleaning program when monitoring the parameter exception in nozzle, and after heating softening residual, uses high -pressure airflow to blow out. The spray head is applicable to 3D printing operation, can promote nozzle durability and anti -blocking capacity, adapts high temperature, viscosity and high filling material.

The invention discloses a full water cooling treatment structure of a suspension back roller, and relates to the technical field of water cooling treatment of suspension back rollers. The device comprises a device body, a plurality of connecting columns are arranged on the left side of the device body, a cooling assembly is arranged on the left sides of the connecting columns, and a large pressurizing assembly is arranged in the cooling assembly; an anti-adhesion device is arranged in the device body, an anti-blocking device is arranged in the anti-adhesion device, and an anti-magnetism device is arranged on the left side of the anti-blocking device. Dirt in a water source is shielded by means of the filter plate, meanwhile, the inclined plate rotates to scrape off the dirt to prevent dirt attachment from causing blockage of filter holes in the left side of the filter plate, prevent water inflow and cause poor workpiece machining effect, a full-water-cooling effect is achieved after water cooling treatment is conducted on the suspended roller body, and the situation that the bottom of a discharged steel billet is stuck with steel due to the cantilever roller is prevented. And pits with different degrees appear, so that the quality is influenced.

The utility model provides automatic metal smelting, calendering and conveying equipment, belongs to the technical field of metal smelting, and aims to solve the problem that scratches are easily formed on the surface of a roller due to the fact that the edge of a calendered plate is sharp. Comprising a conveyor supporting frame, a limiting mounting plate, a position adjusting lead screw, a guide connecting plate, a sliding limiting plate, a guide connecting rod and a plate bearing piece. The limiting mounting plates are connected to the front side and the rear side of the conveyor supporting frame through bolts. The position adjusting screw rod is rotationally connected to the upper part of the limiting mounting plate; the guide connecting plate is in threaded connection with the outer side of the position adjusting screw rod; the sliding limiting plate is connected to the lower part of the guide connecting plate in a sliding manner; the guide connecting rod is connected to the lower part of the sliding limiting plate in a sliding manner; the plate bearing piece is fixedly connected to the lower portion of the guide connecting rod. According to the utility model, collision between a plate and the roller is avoided, and scratches on the surface of the roller are avoided.

The invention discloses a moisturizing and whitening cream and a preparation method thereof, aiming to provide a moisturizing and whitening cream which is mild and non-irritating, can inhibit or reduce melanin in all directions, accelerate skin metabolism, promote melanin shedding, reduce ultraviolet radiation, replenish moisture required by the skin, and can effectively improve microcirculation; the technical scheme thereof is: 1-10% oil, 2-8% polyol, 0.5-2% protease glucan, 0.2-2% mannan, 3-7% tocopherol, 2-5% cetearyl alcohol, 1-5% rice fermentation product filtrate, 0.5-1.2% black mulberry leaf extract, 1‑3% camellia leaf extract, 0.5‑1% plantain fruit extract, 0.1‑0.3% liquorice root extract, 0.2‑0.8% purslane extract, 0.2‑1% disodium cocoyl ethylenediamine PEG‑15 disulfate, 1‑2.5% soy lecithin, 0.5‑1.2% poloxamer, 0.1‑0.5% tetrasodium glutamate diacetate, 0.1‑0.3% allantoin, 0.1‑0.5% carbomer, 0.2‑1% dibutyl lauroyl glutamine, 0.5‑1% preservative, and appropriate amount of water; belonging to the technical field of cosmetics.

The present invention belongs to the field of finite element simulation technology, and specifically relates to a finite element simulation analysis method for a flexible interconnection system, the steps of which include obtaining a finite element mesh division scheme for a flexible interconnection system based on the dimension condition data of the flexible interconnection system, determining each flexible interconnection system area, analyzing the material parameters of each flexible interconnection system area, determining the environmental conditions applied for the simulation analysis of each flexible interconnection system area, analyzing the strength and structural vibration state of the mechanical connectors of each flexible interconnection system area, and determining the qualified level of the flexible interconnection system in combination with the characteristic values ​​of the strength of each flexible interconnection system area and the characteristic values ​​of the vibration state of each flexible interconnection system area. The present invention solves the problem of insufficient dynamic analysis and processing capabilities of traditional flexible interconnection systems and insufficient consideration of environmental factors, and helps to more accurately evaluate the overall behavior and performance of the flexible interconnection system, determine the qualified level, and more accurately reflect the real working state of the system.

The utility model belongs to the technical field of part machining equipment, and particularly relates to a metal part drilling device which comprises a collecting box, a workbench is fixedly arranged at the top of the collecting box, a plurality of air cylinders are fixedly arranged at the top of the workbench, and the output ends of the air cylinders are fixedly provided with the same top plate. The top of the top plate is fixedly provided with a rotating motor, the output end of the rotating motor penetrates through the top plate and is fixedly provided with a mounting sleeve, and the two sides of the mounting sleeve are both provided with heat dissipation fan blades. The inserting blocks are inserted into the clamping grooves and pressed downwards, the heat dissipation fan blades are installed, the two heat dissipation fan blades rotate in the drilling period, air cooling, water cooling and air cooling are combined, the cooling speed and effect of equipment can be improved, and the situation that the inner wall of a hole is coarse due to high temperature can be effectively avoided.

This invention discloses a casting defect detection method based on dual-channel collaborative diagnosis and root cause analysis, belonging to the field of investment casting quality inspection technology. The method includes: acquiring investment casting process parameters and screening quantifiable physical parameters strongly correlated with defects; constructing a Bayesian network causal relationship graph based on a directed acyclic graph; converting time-series data into statistical features and concatenating them with static parameters to form a structured feature matrix; processing the feature matrix using a TabNet model to complete the first defect diagnosis; capturing images of the casting appearance and performing multi-angle photometric stereo fusion processing using an EfficientNet-B4 model to complete the second defect diagnosis; calculating the consistency score of the two diagnoses using Dempster-Shafer evidence theory to complete dual-channel decision fusion; performing SHAP-based post-causation on the TabNet model output and combining it with Bayesian network backward probability inference to complete root cause localization. This invention, through the dual-channel collaboration of process parameter diagnosis and visual appearance diagnosis, achieves comprehensive detection and process root cause localization of typical investment casting defects such as shrinkage porosity, gas porosity, cracks, sand inclusions, and cold shuts, significantly improving the accuracy and interpretability of defect detection.

The application discloses a rotary well cellar multi-station zero-speed vertical cellar digging mechanism, equipment and method, solves the problem that the existing cellar digging mechanism is easy to scratch the well cellar wall and has a complex structure, has the beneficial effects of simple and reasonable structure and high cellar digging quality, and specifically has the following scheme: a rotary well cellar multi-station zero-speed vertical cellar digging mechanism, which comprises at least three groups of transmission assemblies, one end of each transmission assembly is fixed to a center shaft, one end of a connecting piece is rotatably connected to the other end of the transmission assembly, a duckbill planting mechanism is used for accommodating tobacco seedlings, the other end of the connecting piece is connected to the duckbill planting mechanism, the duckbill planting mechanism comprises two half duckbill components, one of the half duckbill components can swing, the position of the duckbill planting mechanism is perpendicular to the ground surface when the duckbill planting mechanism is working, one end of a pull rod is movably connected to the side wall of the transmission assembly, and the other end of the pull rod is movably connected to the swingable duckbill component of the duckbill planting mechanism.

The invention discloses a swing arm control system of a cradle rotary table, which comprises a supporting seat, a cradle swing arm is arranged on the supporting seat, a rotary base is arranged on the cradle swing arm, a clamping assembly for clamping and fixing a workpiece is arranged on the rotary base, and the clamping assembly can press and fix the top of the workpiece in a self-adaptive manner. A brush used for cleaning the top of the rotating base is arranged on the supporting base, a first motor is arranged on one side of the supporting base, and a transmission assembly is arranged between the first motor and the cradle swing arm and between the first motor and the brush. According to the invention, only the telescopic block is arranged above the clamping block, when the upper surface of the workpiece is processed, the cradle swing arm does not need to be rotated, so that the workpiece can be clamped and fixed only by jacking the side surface of the workpiece through the clamping block, and when the side surface of the workpiece needs to be processed, the telescopic block is descended, and the workpiece is clamped and fixed. The elastic pieces on the inner sides of the telescopic blocks contract when abutting against the workpiece, the top plate is lowered through transmission of the connecting rods, and at the moment, the top plate is attached to the upper surface of the workpiece.