19results about How to "High quality and precision" patented technology

This disclosure relates to the technical field of strip steel right-angle edge protection processing equipment. One embodiment of this disclosure provides an edge protection processing device for strip steel production, which includes: a frame and a drive motor. The drive motor is disposed at the bottom of the frame, a feeding assembly is disposed on the frame, a directional sleeve is fixed on the surface of the frame, and a conveying and forming assembly is disposed on the frame. The conveying and forming assembly includes a pair of conveying rollers, both of which are rotatably connected to the frame. Each conveying roller has a transmission gear at its upper end, and the transmission gears mesh with each other. One of the conveying rollers is controlled to rotate by a motor. A first hydraulic cylinder and a second hydraulic cylinder are respectively disposed on the frame. Through the above technical solution, the technical problem of the prior art, which usually involves first transporting the strip steel to the bending area, bending it using a specific mold and pressure equipment, and then pushing it backward after forming before cutting, cannot be completed simultaneously.

This invention relates to the field of welding deformation prevention technology and provides a welding deformation prevention and fixing device for membrane wall tubes. The device includes a welding table with a fixing frame fixedly connected to it. The fixing frame has a fixing mechanism, and the fixing mechanism contains a cooling channel that can be connected to an external water-cooling tank via a water pipe and pump. The device also includes a control system comprising a clamping pressure adaptive control module. This module constructs an adaptive control model based on a reference clamping force, transient instability probability, and current wall tube vibration intensity, outputs a dynamic clamping force setpoint, and controls the fixing mechanism. This invention can dynamically adjust the clamping force of the fixing mechanism according to the transient instability probability and real-time vibration intensity of the membrane wall tube during welding. This makes the clamping force no longer a static preset value but can respond in real time to dynamic changes during welding, effectively addressing the problem of insufficient static constraint force when instantaneous thermal stress or vibration intensification occurs.

The present application belongs to the technical field of mechanical cutting tool manufacturing, and particularly relates to a micro-textured tool based on laser micro-cladding in-situ forming, a preparation method and application thereof. Specifically, the present application successfully prepares a multi-layer coated tool with a micro-textured morphology. The tool has the advantages of micro-texture, laser cladding layer and multi-layer coating structure, and has high hardness, good self-lubricating performance, good toughness, strong coating adhesion and small internal stress of the coating, and will not produce defects such as deformation or micro-cracks of the tool substrate material. In the cutting process, the tool can effectively reduce the cutting force and cutting temperature, reduce tool wear and improve tool life, and can be widely applied to dry cutting and cutting of difficult-to-machine materials, and therefore has good practical application value.

The utility model relates to cross -film self -adhesion waterproof roll material technical field, concretely is a kind of cross -film self -adhesion waterproof roll material production equipment, it includes production table, preheating tensioning mechanism, cooling mechanism and sliding block: preheating tensioning mechanism is set in the end of production table;Cooling mechanism is set in the top of workbench;Sliding block is slidably arranged on preheating tensioning mechanism.The utility model is through the setting of winding assembly and preheating tensioning mechanism, motor one is rotated winding by winding roller and is rolled, motor two drives the air in preheating roller to flow quickly to thus accelerate the preheating of preheating roller, spring two and spring three can be according to the size of roll material adjust the position of pressing plate and preheating roller, like this can ensure that roll material keeps flat in production process, avoid the wrinkle, deformation or thickness uneven caused by slackening, to improve the appearance quality and size precision of roll material, and make roll material base material and glue layer heat consistent, avoid the performance difference caused by local overheating or supercooling.

This invention discloses a welding positioning device and its forming method for training missiles. The welding positioning device includes: a missile body welding fixture, a pouring fixture, a tail fin welding fixture, and two centers. Each of the two centers consists of a frustum and a round rod coaxially fixed to the large-diameter end of the frustum. The two centers are respectively used to hold the inner hole of the missile body's central tube and the positioning sleeve. The missile body welding fixture is used to weld and position the missile head and cylindrical section, and the missile head and mounting sleeve. The pouring fixture is used for pouring and forming concrete inside the conical section of the missile body. The tail fin welding fixture is used to weld and position the tail fin and the conical section, and to ensure the relative angle between the tail fin blades and the positional relationship between the blades and the missile body axis. This invention can ensure the welding quality and welding accuracy of the training missile, thereby ensuring coaxiality, symmetry, and straightness.

This utility model discloses a trimming and cutting device for particleboard production, including a U-shaped bottom hollow frame, sponge rollers rotatably mounted at the front and rear positions inside the U-shaped bottom hollow frame via bearing seats, a drive shaft rotatably mounted on one inner wall of the U-shaped bottom hollow frame, and an external spline shaft rotatably mounted on the inner wall of the U-shaped bottom hollow frame below the drive shaft. A left cutting disc is fixed to one end of the external spline shaft near the inner wall of the U-shaped bottom hollow frame. A three-gear speed-increasing transmission structure is installed between the drive shaft and the external spline shaft. This utility model controls the positions of the L-shaped shaft carrier, T-shaped hollow bushing, internal spline shaft, and right cutting disc via a control panel and an X-axis lead screw electric module. After adjustment, the motor transmits power to the external spline shaft and internal spline shaft, causing the left and right cutting discs to rotate synchronously. The operator manually pushes the particleboard until the left and right cutting discs synchronously trim the edges of the particleboard.

This application provides a method for processing an optical component with a light-reflecting cavity, comprising the steps of: processing a first coated component and a second coated component; processing two plates having the same reference surface on the same disc, positioning them using the reference surface, and processing the two plates respectively to obtain a third coated component and a fourth coated component; providing an assembly fixture to position the first coated component and the third coated component, fixing the bottom surface of the third coated component to the surface of the first coated component; positioning the second coated component using the assembly fixture, and bonding the surface of the second coated component to the third coated component and the fourth coated component. This method solves the problem that the processing of optical components in the prior art is difficult to achieve high-standard quality requirements.

This invention discloses a high-alloy high-performance rotary guide component and its manufacturing method, belonging to the field of stainless steel technology. It solves the problems of poor microstructure uniformity and inability to simultaneously achieve mechanical properties and stress corrosion resistance in existing rotary guide components. The manufacturing method includes: smelting molten steel; preparing ingots; forging the ingots into steel billets using a high-speed forging machine after they are tapped from the furnace; heating and holding the steel billets; forging the steel billets into intermediate billets using a radial forging machine; water cooling the intermediate billets; forging the water-cooled intermediate billets a second time using a radial forging machine, followed by air cooling to obtain finished steel billets; straightening, machining, and shot peening of the finished steel billets to obtain rotary guide components; the composition of the rotary guide components, by mass percentage, includes: 18.00% ≤ Cr < 28.00%, 3.00% ≤ Mo ≤ 6.00%, 14.00% ≤ Ni ≤ 20.00%, 3.00% ≤ Mn ≤ 8.00%, Si ≤ 0.4%, Nb ≤ 0.25%, P ≤ 0.025%, S ≤ 0.02%, C ≤ 0.03%, N ≥ 0.3%, with the balance being Fe and other unavoidable impurities. The rotary guide components of this invention have fine and uniform grains and excellent mechanical and corrosion resistance.

The application discloses a kind of based on CatBoost regression model's chlorine ion diffusion coefficient prediction method.The method first collects measured sample data and carries out data cleaning, ensure the quality of data.Subsequently, by LASSO regression feature selection method, the feature that has significant contribution to target value is screened out, and the optimal feature coefficient is selected using cross validation.Then, define regression model evaluation function.Then, using CatBoost regression model is trained, and the hyperparameter is optimized by grid search, and the best model parameter is obtained.Prediction is carried out on training set and test set, and model evaluation index is calculated and output, finally, fitting effect diagram and residual plot are drawn, show the prediction ability and error distribution of model.By combining LASSO feature selection and CatBoost regression model, the application improves the prediction accuracy and stability of chlorine ion diffusion coefficient, and can effectively handle complex regression problems.

This utility model discloses a sliding guide centering device for a high-speed wire rod finishing mill, belonging to the field of high-speed wire rod production technology. It is installed on the roll box panel of the guide seat and includes a first slide rail, a second slide rail, a third slide rail, a first centering clamping plate, a second centering clamping plate, and a third centering clamping plate. The first centering clamping plate is slidably connected to the first slide rail via a first slider, the second centering clamping plate is slidably connected to the second slide rail via a second slider, and the third centering clamping plate is slidably connected to the third slide rail via a third slider. The first centering clamping plate includes a first square plate and a first centering portion in the shape of an isosceles trapezoid. The second centering clamping plate includes a second square plate and two second centering portions in the shape of isosceles triangles. The third centering clamping plate includes a third triangular plate and a third centering portion in the shape of an isosceles trapezoid. All three centering clamping plates can be moved left and right and their positions can be finely adjusted forward and backward. This utility model solves the problem of unstable centering of the sliding guide in existing high-speed wire rod finishing mills.

The invention belongs to the technical field of laser cutting, and particularly relates to a high-precision three-dimensional laser cutting machine which comprises a placing frame, a moving assembly arranged on the upper side wall of the placing frame, and a laser cutting head connected to the moving end of the moving assembly, and the clamping assembly is arranged on the upper side wall of the containing frame and located on the left side of the laser cutting head, the clamping end of the clamping assembly is connected with a square pipe, and the square pipe is located below the laser cutting head. When the three-dimensional laser cutting machine is used for cutting the square pipe, the inner walls of the edges and corners of the pipe are coated with the heat absorption coating in advance, redundant laser energy gathered at the edges and corners can be effectively absorbed, the phenomena of local heat concentration, overburning and melting collapse are reduced, meanwhile, damage of laser reflection to a cutting head and a light path is reduced, the problems of notch burrs and slag adhering are solved, and the service life of the cutting head is prolonged. And the square tube corner angle cutting section quality and size precision are improved.

This application provides a paper positioning mechanism disposed at the paper output position of a printer. The paper positioning mechanism includes a paper output holder, a transmission assembly, two linkage assemblies, and two clamping members. The transmission assembly and the two linkage assemblies are disposed on the paper output holder. A guide rail is provided on the top side of the paper output holder. The two linkage assemblies are respectively disposed on both sides of the transmission assembly. The two clamping members are disposed on the guide rail and respectively connected to the two linkage assemblies. When the printer outputs a piece of paper, the transmission assembly drives the two linkage assemblies to rotate in opposite directions, thereby causing the two clamping members to move along the guide rail and move closer to each other to clamp the paper, or move further apart to release the paper. Therefore, this application can effectively prevent label paper from shifting during alignment.

The application relates to the technical field of wire cutting equipment, and discloses a wire cutting machine for die manufacturing, which comprises a base, a machining box fixedly connected to the top front side of the base, a rack fixedly connected to the top rear side of the base, an adjusting mechanism arranged on the front side of the rack, a shell, a motor one fixedly connected to the right side of the shell, an output end of the motor one penetrating through the shell and fixedly connected with a cam, a bottom plate fixedly connected to the bottom of the inner side of the shell, and a damping hydraulic cylinder fixedly connected to the top of the bottom plate. The motor drives the cam to rotate, the cam cooperates with the frame to flexibly adjust the tension of the wire electrode, and the damping hydraulic cylinder and the spring one can effectively absorb the high-frequency micro-vibration of the wire electrode caused by the impact force in the discharge machining moment, so that the tension fluctuation is controlled within a very small range.

The utility model relates to mechanical processing technical field, concretely is a kind of universal angle lathe tool extension tool holder, including fixed seat and adjusting base, fixed seat is by the lathe tool holder connecting portion for being connected with lathe tool holder and the adjusting base connecting portion for being connected with adjusting base is composed, adjusting base is rotatably installed on adjusting base connecting portion, rotating drive device for driving adjusting base to rotate to adjust angle and locking device for locking adjusting base on adjusting base connecting portion after adjusting angle are provided on adjusting base connecting portion, lathe tool is fixedly installed in the bottom of adjusting base. The universal angle lathe tool extension tool holder effectively solves the problem of traditional lathe tool holder in angle adjustment efficiency, angle adjustment accuracy, stability, convenience and universality etc., provides powerful support for the high-precision, high-efficiency processing of complex parts in new energy automobile, aerospace and other fields.

The utility model belongs to paper cutting technical field discloses a cutting device. Cutting device includes the platform and cutting tool, and cutting tool includes tool body and a plurality of cutting parts, and tool body is provided with a plurality of installation grooves along the first direction interval, every cutting part is detachably installed in any installation groove, so that user can need flexible adjustment cutting part's position and the number of cutting part installed in tool body, control the number and size of the split unit that a plurality of cutting parts cut, satisfy the diversified demand of user to split unit, improve cutting flexibility and the versatility of cutting device. The platform is used for placing the cutting part, and the platform can provide a flat work reference surface for the cutting process of the cutting tool, overcoming the cutting deviation caused by the unevenness of the traditional cutting plane. The cutting tool includes a plurality of cutting parts, and the plurality of cutting parts can directly divide the cutting part into a plurality of split units, thereby improving the cutting efficiency.

This utility model discloses a stop bar structure for a die-casting mold, comprising: a die-casting mold body and a positioning component. Two handles are installed on one side of the die-casting mold body, and two fixing bolts are installed on the other side of the die-casting mold body. A stop bar assembly is provided in the middle of the die-casting mold body. The positioning component is located on top of the stop bar assembly to fix the position of the stop bar assembly. This utility model forms a reliable physical barrier by having the stop bar body fit against the mold closing gap of the die-casting mold, significantly reducing the risk of high-temperature molten metal overflowing from the parting surface under high pressure, reducing the generation of defects such as flash and burrs, improving the surface quality and dimensional accuracy of the casting, and reducing subsequent processing costs. It is more suitable for the production of precision die-casting parts with strict requirements for surface finish. Furthermore, the engaging design of the fastening bolts and positioning holes, combined with the anti-slip structure of the threaded ring, ensures that the stop bar assembly maintains a stable connection under high pressure conditions.

This invention relates to the field of steel bar processing technology and discloses a guiding device for cutting stainless steel bars. The device includes a mounting plate and a support frame fixedly connected to the bottom of the mounting plate. A top plate is fixedly connected to the top of the support frame, and a cutting assembly is provided at the bottom of the top plate. The top of the mounting plate is also provided with a guiding assembly. The cutting assembly includes a horizontal plate that is vertically slidably installed below the top plate, and a clamping cover is slidably connected to the outside of the vertical rod. By setting the guiding assembly, the steel bar can be pre-cleaned during the guiding and conveying of the steel bar. By setting the cutting assembly, as the cutting blade descends to the cutting position, the clamping cover provides auxiliary limiting and fixing of the steel bar, and the scraping ring assists in cleaning the residual waste on the outside of the cutting blade. Furthermore, as the cutting blade descends from the top to the bottom of the steel bar, it drives the scraping block to further clean the residual waste on the scraping ring, thereby improving the cut quality and cutting accuracy.

The application relates to a kind of progressive forming process methods, comprising the following steps: S1, each clamping unit is adjusted to uniform vertical height, and the rotation angle of lower clamping head and upper clamping head is adjusted to set reference posture, and the clamping surface is relatively flat;S2, metal sheet is placed and clamped and fixed between the lower clamping head and the upper clamping head of each clamping unit;S3, according to the three-dimensional surface topography of target workpiece, the height and clamping head angle of each clamping unit are gradually adjusted, and the metal sheet is preliminarily fitted to the target topography;S4, the position and posture of all clamping units are locked, and a stable curved surface support structure is constructed;S5, the sheet is progressively formed using a progressive forming tool head;S6, after forming, the clamping force is released and the workpiece is removed.Compared with the prior art, the application has the advantages of improving forming quality and material utilization, improving processing efficiency and trajectory accuracy, high flexibility and versatility, reducing production cost and the like.

The application discloses a prefabricated beam shared steel pedestal based on a standardized segment combination and a construction method, and relates to the technical field of bridge engineering prefabricated beam production. The application comprises a foundation support, a main frame and a top surface support. The foundation support is installed on a concrete cushion layer. The main frame is installed on the foundation support. The top surface support is installed on the main frame. The main frame comprises a T-beam pedestal and a box girder pedestal. The T-beam pedestal is connected with the box girder pedestal through flanges. The T-beam pedestal is used as a steel pedestal for T-beam prefabrication. The T-beam pedestal and the box girder pedestal are combined to be used as a steel pedestal for box girder prefabrication. The main frame is arranged to be the T-beam pedestal that can be used for T-beam prefabrication alone and the box girder pedestal that can be combined with the T-beam pedestal for box girder prefabrication. Therefore, the same set of steel pedestal systems can meet the prefabrication requirements of both T-beams and box girders, the versatility and adaptability of the pedestal are improved significantly, and the need for setting special pedestals for different beam types is reduced.