76results about How to "Accurate shape" patented technology

The invention relates to the technical field of automobile part machining, and discloses a combined die-casting die for automobile hardware, which comprises a mounting bottom plate, a base is mounted at the top of the mounting bottom plate, a double-shaft servo motor is fixedly connected to the outer part of the base, and a transmission rod is fixedly connected to the output end of the double-shaft servo motor. And the outer side of the transmission rod is fixedly connected with two second bevel gears, two grooves are formed in the outer surface of the base, the interiors of the grooves are rotationally connected with two-way screws, and one end of each two-way screw is fixedly connected with a first bevel gear. According to the combined die-casting die, the first bevel gear, the second bevel gear, the two-way screw rod, the threaded seat and other parts are used in cooperation, the two lower dies can be driven to be rapidly closed to form a closed interval to be matched with the upper die for die-casting machining, meanwhile, demolding is more convenient, a die-casting piece cannot be abraded, and the die-casting efficiency is improved. And the qualified rate of die castings is higher.

The invention belongs to the technical field of aviation aircraft sheet metal part machining, and relates to a manufacturing method of a variable-thickness multi-bent-edge thin-wall part with a reinforcing groove structure. According to the invention, the process method of numerical control milling blanking, sheet metal forming and chemical milling is adopted to replace the process method of numerical control milling and sheet metal forming. Mechanical cutting is replaced by chemical milling, two sets of newly-designed tools are matched for forming the reinforcing groove and the bent edge, the problems that a web is wrinkled and cannot be repaired and a thickness area is distorted and deviated due to forming of the reinforcing groove are solved, the accurate appearance of a part is finally obtained, and the surface quality is improved. The method has generalizability and can be widely applied to machining of complex molded surfaces and variable-thickness thin-wall parts, and the weight of an aircraft body is further reduced while the structural use requirement is met.

The invention relates to the technical field of optical application, and discloses a method for shaping Gaussian light into a linear light beam based on an analytical method, which comprises the following steps: S1, establishing a mathematical model of an input Gaussian light beam and an output linear light beam, and determining a relationship between a shape parameter of the output linear light beam and Uout (x, y), S2, deducing a phase compensation function, the method comprises the following steps: S1, deducing a phase compensation function which needs to be loaded by an SLM by means of an analytical method, S3, loading the phase function to the SLM, and checking the accuracy of phase modulation by using the characteristic that the SLM modulates a light beam phase, and S4, shaping and verifying the light beam. According to the method, the phase pattern can be accurately calculated according to the specific light beam parameters and the target shape, and the method has better universality. Corresponding phase patterns can be calculated through an analytical method for Gaussian beams with different wavelengths and waist radiuses or linear beams with different widths, lengths and light intensity distribution requirements, and the phase patterns are loaded to the SLM, so that efficient and accurate beam shaping is realized.

The invention relates to the technical field of metal material detection, and discloses a method for distinguishing ferrite and cementite structures in a metallographic sample. Comprising the following steps: (1) pretreating a metallographic specimen, and then immersing the metallographic specimen into a corrosive agent for etching; (2) observing the etched metallographic specimen by using a scanning electron microscope, and distinguishing ferrite and cementite tissues; the metallographic structure of the metallographic sample contains ferrite and / or cementite; the corrosive agent contains sodium metabisulfite. According to the method disclosed by the invention, the sample is etched by using the corrosive containing sodium metabisulfite, so that a clear morphology structure can be obtained, and ferrite and cementite structures can be accurately judged by observing in a secondary electron image mode of a scanning electron microscope; under the condition that a small amount of chemical reagent is used, the corrosion degree is appropriate, the clear morphology of ferrite and cementite structures is obtained, the ferrite and cementite structures are distinguished, and the method is an environment-friendly and accurate test method.

The utility model relates to the technical field of steel bar bending, in particular to a steel bar bending machine which comprises a workbench. A supporting part is arranged on the workbench, and an extrusion part and a moving mechanism for driving the extrusion part to slide are arranged on the workbench in a sliding manner; the end, close to the extrusion part, of the supporting part is provided with a supporting face, and the end of the extrusion part corresponds to the supporting face in shape. According to the reinforcing steel bar bending device, the extruding part is pressed on the reinforcing steel bar, the reinforcing steel bar is pressed on the supporting part, so that the bending shape of the reinforcing steel bar corresponds to the supporting surface on the supporting part, the bending shape of the reinforcing steel bar is more accurate, the extruding part and the supporting part can be detached and replaced, and the bending shape and angle of the reinforcing steel bar can be changed.

The utility model discloses stable bending equipment for sheet metal parts, and relates to the technical field of sheet metal part machining, an equipment base is a foundation of the whole equipment and can bear the weight and the generated force of the whole equipment and keep the stability of the equipment in the working process, the sheet metal parts are placed on a material pushing plate, a hydraulic rod is started, and the sheet metal parts are stably bent. The hydraulic rod pushes the movable base to move upwards, the movable base moves upwards on the guide rod, the buffer spring can provide a certain buffer effect when the fixed base makes contact with the movable base, the collision speed is reduced, the impact force is reduced, and therefore the damage risk of equipment is reduced, and the buffer spring can effectively absorb and disperse collision energy. The fixed base, the movable base and other key parts are protected, the service life of equipment is prolonged, the maintenance and replacement cost is reduced, and the movable base moves upwards along the guide rods and drives the bending female die to move upwards.

The invention discloses a grooved belt pulley casting mold and a casting method thereof, and relates to the technical field of belt pulley casting. Comprising a bottom plate, a lower template is fixedly arranged in the middle of the top surface of the bottom plate, and an upper template is arranged above the lower template; the left side and the right side of the lower die plate are provided with a pair of semicircular die plates, and the upper die plate, the lower die plate and the pair of semicircular die plates are mutually closed to form a grooved belt pulley casting cavity. The upper mold plate, the lower mold plate and the pair of semicircular mold plates are arranged to be mutually closed to form the grooved belt pulley casting cavity, the combined mold plate is provided, the combined mold plate is more convenient to mount, dismount, clean and the like, and the combined mold plate is matched with a servo motor, a connecting rod assembly and other components, so that the production efficiency is improved. The upper mold plate, the lower mold plate and the pair of semicircular mold plates can be mutually closed or separated, so that casting and demolding of the belt pulley with the groove are automatically completed, the operation is simple, and the labor cost is low.

The external circulation water pump of the small-displacement diesel engine comprises a water pump shell and a transmission shell installed on one side of the water pump shell, a water inlet and a water outlet are formed in the water pump shell, and the side, away from the transmission shell, of the water pump shell is detachably connected with an end cover used for sealing the water pump shell. A flexible impeller is installed in the water pump shell, a transmission shaft is installed in the transmission shell, and a water seal is arranged between the water pump shell and the transmission shell. The sealing performance between the transmission shell and the water pump shell can be improved through the water seal, in addition, even if the water seal loses efficacy, the transmission shell exists between the water pump shell and the diesel engine, seawater entering the transmission shell can be rapidly discharged through the through hole, and therefore the seawater cannot enter an engine gearbox, the influence on a diesel engine lubricating system is avoided, and the service life of the diesel engine is prolonged. Normal operation of the diesel engine is ensured.

The utility model discloses an integrated guide rail type die special for an upper cover plate and a lower cover plate. Comprising a handle support, an upper pressing plate arranged at the bottom of the handle support and connected with the handle support, a grooving device arranged at the bottom of the upper pressing plate, an elastic pressing plate arranged on one side of the grooving device through an elastic device, and a mold pressing plate arranged on a fixed base corresponding to the grooving device. The multifunctional cover plate mold machining device is formed, the working efficiency is improved, and the use cost is reduced.

The invention relates to the technical field of prefabricated formworks, in particular to an arc-shaped equipment foundation prefabricated formwork equally-divided assembling and reinforcing method which comprises the steps that firstly, lofting is conducted on plywood according to the foundation diameter, a corresponding circular formwork outline is cut out, and a bottom fixing plate and a top end fixing plate are manufactured; finally, the base is divided into an even number of bottom fixing plates and top end fixing plates according to the diameter of the base; equilong battens are cut according to the height of the foundation to form supporting assemblies, and the supporting assemblies are evenly distributed between the bottom fixing plate and the top end fixing plate and fixed through nails, so that a prefabricated circular-arc-shaped equipment foundation framework is formed; the corresponding circular-arc-shaped equipment foundation framework is assembled on the bottom plate, and a complete circular-arc-shaped equipment foundation prefabricated formwork is formed; flattening an iron sheet higher than the top end fixing plate on the fixing cambered surface; and after the internal iron sheet is fixed, a circle is defined on the fastening groove by using a reinforcing steel bar, and the joint is fastened by using an opposite-drawing lead screw and then is welded and reinforced at the joint.

The invention relates to the technical field of glass fiber cloth processing, in particular to an adjustable drying device for polytetrafluoroethylene glass fiber cloth processing, which comprises a base, a supporting plate, a drying mechanism, an adjusting and cooling mechanism, a controller and glass fiber cloth, the supporting plate is arranged on the right side of an inner cavity of the base, the controller is arranged on the front side of the base, and the adjusting and cooling mechanism is arranged on the right side of the inner cavity of the base. The drying mechanism is arranged at the left end of the bottom of the inner cavity of the base and electrically connected with the controller. The relative displacement of the drying barrel and the glass fiber cloth is prolonged, the displacement distance of the glass fiber cloth in the drying process is greatly shortened, the purpose of reducing the occupied area is achieved, the glass fiber cloth is stretched and tensioned, the two feeding assemblies are combined, the impact on the glass fiber cloth in the drying process can be controlled within a certain range, and the drying efficiency is improved. The shape of the glass fiber cloth can be corrected, and deformation caused by inconsistent cooling speeds of the middle part and the edge part of the glass fiber cloth is prevented.

According to the sectional material group stretch-bending forming die and method based on the stretching arm type stretch-bending machine tool, through the combination mode of different parts and the combination of basic technical parameters of stretch-bending machine tool machining, the overall stretch-bending forming die is designed and constructed, and the technological method for multi-project sectional material group stretch-bending forming is achieved for the first time. The forming limitation different from traditional single part forming is adopted, the machine tool forming limit is utilized, parts which cannot be formed through a stretch-bending machine are combined to form a long blank, and the stretch-bending forming technology is achieved. According to the method, the reasonable stretch-bending forming die and the reasonable technological blank length are designed, parts such as bending parts, Yao machine forming parts and manual forming parts which cannot be subjected to stretch-bending forming can be formed in a stretch-bending forming mode, the internal pressure stress of the parts is converted into the tensile stress, the mobility of materials in the part forming process is balanced, and the forming quality of the parts is improved. And part forming springback is effectively reduced.

The invention relates to the technical field of punching machines, in particular to a pressure control method and system for products produced by a high-precision steel frame punching machine and computer equipment. According to the method, the pressure of the punch product is preliminarily adjusted through the load error, the load change is responded in real time, the adjustment can be quickly made when the pressure is too large or too small, the deviation of the surface form can be found in time by obtaining the surface image and the height value in real time and calculating the real-time maximum and minimum curvature and the Gaussian curvature, and the accuracy of the surface form is improved. The pressure is dynamically adjusted according to the curvature difference, surface deformation caused by too large or too small pressure is avoided, the surface flatness and shape accuracy of the product are guaranteed, the quality of the final product can be remarkably improved by continuously monitoring and adjusting the pressure in the production process, and the production efficiency is improved. The pressure is adjusted according to the load error between the actual load and the target load, the feedback speed is increased, real-time adjustment in the production process is ensured, and the precision and efficiency of the whole production process are improved.

The invention is applicable to the technical field of composite materials, and provides an Al / Al2O3 composite material with a multilevel structure, which comprises a first-level structure, a second-level structure, a third-level structure and a fourth-level structure, the first-level structure is composed of micro-nano-level ceramic particles, and micro-nano-level Al metal layers are filled among the ceramic particles; the second-level structure is composed of a micron-level Al layer and a ceramic-rich sheet layer, and the first-level structure is arranged in the ceramic-rich sheet layer; the third-level structure is composed of a millimeter-level or submillimeter-level continuous Al phase and an isolated or continuous ceramic-rich stand column, and the interior of the ceramic-rich stand column is provided with a second-level structure. The invention also provides a preparation method of the Al / Al2O3 composite material with the multilevel structure. The Al / Al2O3 composite material with the multilevel structure is prepared by combining the 3D printing calcium carbonate resin mold with the freeze casting technology in the limited range and the optimal control over the degreasing and calcium carbonate decomposition process, and the Al / Al2O3 composite material has the advantages of being high in precision, flexible in structural design, low in cost and the like, and has more excellent toughness while the strength of the composite material is equivalent.

The invention relates to the technical field of die-cutting machines, in particular to a die-cutting mechanism of a die-cutting machine for carton processing, which comprises a workbench, the top end of a fixed spring is fixedly connected to the bottom end of a sliding block, the top of the sliding block is fixedly connected with a sliding column, and the sliding column is located in a sliding groove and penetrates through the sliding groove. According to the die cutting mechanism of the die cutting machine for paper box machining, when cutting is carried out, a connecting plate is pressed downwards by holding a fixing handle, a servo motor can adjust the angle of a cutting knife through a connecting roller, and therefore the cutting accuracy is ensured, when the connecting plate is pressed downwards, sliding columns on the two sides of the connecting plate slide downwards in sliding grooves at the same time, and the cutting efficiency is improved. The paper box cutting device is convenient to adjust the angle, when the fixed handle is loosened, the device rebounds through the acting force of the fixed spring and restores, the cutting angle can be reasonably adjusted, and it is guaranteed that the size and shape of the cut paper box are accurate.

The invention relates to the technical field of laser, in particular to a planar waveguide laser using suspended particle fluid as a laser gain medium. The planar waveguide laser comprises a pumping source, and the pumping source comprises a semiconductor laser array. The beam shrinking imaging lens group is arranged on the light emitting side of the pumping source along the optical axis; the slow axis focusing lens is arranged on a light path between the beam shrinking imaging lens groups; the dichroic mirror is arranged on the light emitting side of the beam shrinking imaging lens group; the resonant cavity is arranged on the light emitting side of the dichroic mirror; and the gain module is arranged between the dichroic mirror and the resonant cavity. By compressing the light beam form and improving the order of magnitude of the pump light, the laser generation and output process becomes more efficient; meanwhile, the planar waveguide has good light beam quality, the heat dissipation problem of the solid laser is effectively relieved, and the solid laser is suitable for various application scenes.

The utility model discloses a kind of chip waste-removal machines, it includes rack, pearl wool placing assembly, feeding mechanism, lifting pressure marking mechanism, mobile cutting mechanism and female die and male die;Feeding mechanism is pushed pearl wool to the below of lifting pressure marking mechanism by ejection block piece by piece, lifting pressure marking mechanism controls male die and press down and extrudes pearl wool partial into female die through hole, the knife of mobile cutting mechanism is translated and cut between male die and female die, and different shape cotton sheet is formed;In the second embodiment, lifting fixed plate is additionally provided with flat head thimble for waste removal, and the quality of finished product is improved;The present application can efficiently and accurately process pearl wool in large quantities, and has significant technical advantages and application value.

The utility model discloses a cable middle stripping device which comprises a bottom plate, the top of the bottom plate is fixedly connected with a supporting rear plate, the front end face of the supporting rear plate is provided with a switch, the bottom plate is provided with a lower fixing block, the lower fixing block is provided with a lower cutter holder, the top of the supporting rear plate is fixedly connected with an air cylinder fixing plate, and the air cylinder fixing plate is provided with an air cylinder. An air cylinder is installed on the air cylinder fixing plate, an air cylinder limiting adjusting stud is installed on the air cylinder, an upper fixing block is installed at the bottom end of the air cylinder limiting adjusting stud, an upper cutter base is installed on the upper fixing block, and an electromagnetic valve is installed on the rear end face of the rear supporting plate. The cable processing equipment is efficient and accurate, the cable processing efficiency and quality can be improved, and the difficulty and errors of manual operation are reduced.

The invention provides a laser creep forming device and method for a thin-wall component. The device comprises a forming die which is provided with a die molded surface and outer edge surfaces located at the two ends of the die molded surface. The fixing parts are located on the two outer edge faces and used for being fixed to the two ends of a blank, and the blank is bent towards the side where the mold profile is located to form preforming. The multi-dimensional movement mechanism is provided with a movable end, the movable end is located above the mold molded surface, and the movable track covers the area corresponding to the mold molded surface; and the laser generating mechanism is connected with the movable end, faces the molded surface of the mold and is used for heating a laser irradiation area on the blank for laser creep age forming. More elastic internal energy in the material of the blank is promoted to be converted into plastic work through the laser heat effect, residual deformation is partially released, the internal stress of the blank is reduced, creep age forming of the material is more facilitated, the forming property of the material is improved, and creep age forming can be accurately carried out on all areas of the blank.

According to a method for producing a three-dimensional shaped food, the method comprising a step of turning a curdlan dispersion liquid into a heat irreversible gel, and a step of ejecting and laminating the gel, it is possible to obtain a three-dimensional shaped food that may withstand precise shaping with good handling properties at the time of ejection but with high shape retention during and after lamination and also has heat resistance after forming.

The invention relates to the technical field of preparation of multi-element layered double hydroxides, and particularly discloses a microwave-assisted LDHs organic functionalization method based on steel slag, which comprehensively uses ultrasonic treatment, microwave heating, magnetic field-assisted arrangement, temperature control phase change and laser fine regulation and control technologies, and aims to realize transformation from waste materials to high-performance materials. And meanwhile, the performance of the material can meet strict industrial application standards. The method comprises the following steps: firstly, pretreating steel slag by using an ultrasonic technology, destroying the structure of the steel slag through high-frequency vibration and a cavitation effect, and releasing valuable metal ions; then, the treated steel slag is mixed with an organosilane compound, rapid heating is conducted under the assistance of microwaves, and nucleation and organic modification of LDHs are promoted. Through the series of treatment, the efficiency of recycling valuable materials from the steel slag is remarkably improved, the functionality and application potential of the materials are remarkably improved, and the method is suitable for the fields of high-end electrons, catalysts, environment treatment and the like.

The invention discloses a building three-dimensional damage detection method, which comprises the following steps of: 1, carrying out image acquisition on a target building by using an unmanned aerial vehicle carried with a visible light imager to obtain a plurality of building images covering the whole target building, and generating a building DSM (Digital Subscriber Model); 2, acquiring a top elevation image of the target building; 3, detecting the elevation change of the target building; 4, detecting the top damage of the target building; 5, detecting side damage of the target building; and 6, visualizing the damage of the target building. The method is simple in steps and reasonable in design, the unmanned aerial vehicle is used for shooting the images of the target building at multiple angles, detection of elevation change, top damage and side damage of the target building is achieved, and overall visualization of damage of the target building is achieved.

This invention discloses an extruder head flow channel orifice structure and its application in tire tread winding, belonging to the field of tire manufacturing technology. The extruder head flow channel orifice structure includes an extruder body with a flow channel orifice connected to its end. Its core improvement lies in the non-circular shape of the extrusion orifice. This breaks through the limitations of traditional circular orifices; the non-circular design, such as rectangular or near-circular shapes, allows for adjustment of the rubber strip cross-sectional shape according to the functional requirements of different parts of the tread (such as the crown and shoulder), optimizing the contact area and bonding pressure distribution between the rubber strip and the forming drum, reducing bonding air bubbles, and improving interlayer bonding strength. The tire tread winding method involves extruding a continuous rubber strip using the extruder head flow channel orifice structure and then winding this strip onto the forming drum in a seamless manner to form the tread.

The invention discloses a grid model processing method and device, a storage medium and electronic equipment. The method comprises the steps of obtaining model information of a target grid model; based on the model information, determining an average normal of a plurality of vertexes and a surface normal of a plurality of surfaces on the target grid model; determining control parameters of the plurality of vertexes based on the average normal of the plurality of vertexes and the surface normal of the plurality of surfaces; and generating a stroking effect of the target grid model based on the control parameters of the plurality of vertexes and an average normal of the plurality of vertexes, the width of the stroking effect being determined based on the control parameters of the plurality of vertexes. According to the method and the device, the technical problems of relatively poor effect and relatively low efficiency of generating the stroking effect of the network model in related technologies are solved.

The utility model discloses a machine clamping type groove milling cutter which comprises a cutter body, a cutter head rod is integrally formed at one end of the cutter body, a groove is formed in one end of the cutter head rod, a cutter pad is arranged in the groove, and a pressing plate is arranged in the groove, so that the cutter head rod can be clamped in the groove. The pressing notch tightly attached to the upper surface of the blade is formed in the bottom of the pressing plate, it can be guaranteed that the blade is kept at the stable position in the machining process through tight attachment of the pressing notch and the upper surface of the blade, the risk that the blade moves or falls off due to vibration or impact is reduced, and the stable blade position can guarantee improvement of the machining precision; in addition, the blade is always kept at a stable position, and the cutting edge, located in the groove, of the blade cannot collide with the interior of the groove, so that the problem that the cutting edge to be replaced is scrapped in advance is effectively solved, and the service life of the blade is further prolonged.

The present invention belongs to the field of laser beam processing technology, and discloses a method and system for accurately preparing micro-textured slopes by laser beam. The method establishes a BP neural network prediction model for the morphology of laser-etched materials based on the morphology of micro-pits at different laser powers; inputs the geometric model parameters of the micro-texture to be processed, extracts the characteristics of the micro-texture, and obtains the correction coefficients of the geometric model and the theoretical micro-texture; arranges the input overlap rate, outputs the laser beam processing focus coordinates of the micro-texture to be processed and the power corresponding to each focus coordinate; calculates the total diameter length of the focus coordinates, and determines the method of using method 1 polarizer or method 2 to control the stepper motor for processing; inputs the laser beam processing focus coordinate DXF image in the laser or controls the stepper motor and the laser beam power corresponding to each laser beam processing focus for processing. The present invention automatically controls and adjusts the laser parameters, realizes more accurate focus control, and improves the efficiency and accuracy of laser beam processing micro-textures.

The invention relates to a disc brake for a motor vehicle and a motor vehicle with a disc brake, in particular a fixed caliper brake for a commercial vehicle (102). The invention relates to a disc brake for a motor vehicle (100), comprising a brake caliper (6) and two brake pads (8, 8 ') which are accommodated on the brake caliper (6) and can be moved relative to one another, and a brake carrier (10) for accommodating the brake caliper (6), the brake carrier (10) being designed to couple the brake caliper (6) to a rigid axle part (4) of the motor vehicle (100). The brake carrier (10) and the brake caliper (6) form a one-piece housing part (12, 12 ') which is designed to at least partially close the brake disc (2) which interacts with the brake linings (8, 8').

This utility model relates to the field of mold technology, specifically an internal pressure side-push forming mechanism. The internal pressure side-push forming mechanism is characterized by: a lower pad plate connected to the bottom of the lower mold base, a lower clamping plate connected to the top of the lower mold base, a lower ejector plate above the lower clamping plate, lower mold bending blocks on the left and right sides of the lower ejector plate, and pull-back blocks on the outer sides of the lower mold bending blocks on both sides, respectively connected to the lower mold bending blocks via pull-back screws and springs; a lower mold driving block is located between the lower mold bending blocks and the pull-back blocks, with the other end of the lower mold driving block passing through the lower ejector plate and the lower clamping plate and connecting to the lower mold base; the bottom of the lower ejector plate abuts against one end of a tension / compression spring, and the other end of the tension / compression spring passes through the lower clamping plate and is located inside the lower mold base. Compared with the prior art, by cooperating with the upper mold bending block, the internal pressure side-push forming lower mold bending block achieves the effect of bending on both sides, reducing rework issues.

The invention relates to a satellite multi-beam rapid forming method based on a genetic algorithm, and the method comprises the steps: inputting a constraint condition, and carrying out the array amplitude tapering, so as to meet the maximum sidelobe level demand of each beam; calculating the size of an array required for forming each wave beam so as to meet the requirement of the wave beam width; and optimizing the position of an array needing to be activated for forming each beam and the corresponding array element amplitude and phase coefficient based on a genetic algorithm. According to the invention, shaping of a plurality of circular wave beams with different sizes and proportional distribution of wave beam power resources are realized, so that the total radiation power of the array is maximized, and meanwhile, the calculation complexity is reduced.

Disclosed is a lower folding device for forming dumplings. The lower folding device for forming dumplings according to the present invention comprises: a dumpling skin pressing unit which includes a plurality of dumpling skin folding units that are simultaneously operated, and which drives the plurality of dumpling skin folding units at a preset position; a cam rail unit for folding which is arranged adjacent to the dumpling skin pressing unit and is connected to the dumpling skin pressing unit to move the dumpling skin folding units; and a movement unit for folding which is connected to the dumpling skin pressing unit and moves the dumpling skin pressing unit relative to the cam rail unit for folding.