32 results about "Double curvature" patented technology

The invention provides a shot blasting path generation method for an irregular profile double-curvature integral wallboard, which comprises the following steps of: firstly, extracting geometric information of the integral wallboard, and discretizing an appearance surface of the wallboard by utilizing a discretization algorithm to obtain a uniformly distributed and fully covered discrete point set; extracting the geometric information of the wallboard at the discrete points, solving the matrix thickness of the discrete points at the ribs, and storing the matrix thickness in an XML (Extensible Markup Language) data structure, so that the extracted geometric information can be conveniently used for shot blasting path planning and process parameter calculation; and finally, based on the discrete point two-dimensional array, performing shot blasting path planning through the extreme curvature value and the direction of the discrete point, and combining an iterative adjustment strategy to ensure that the generated path meets the requirements of equipment parameters and coverage rate, so that the adaptability to complex geometry and accurate range control of spacing are realized, and the path spacing meets the range requirement. Manual adjustment is reduced, and the path generation process is stable and reliable.

The invention discloses double-curvature glass with precise wide view and production equipment and method thereof, and belongs to the technical field of glass production, the double-curvature glass comprises a hot bending furnace, the hot bending furnace is detachably connected with a double-curvature mold, the hot bending furnace is electrically connected with a driving mechanism, and the driving mechanism is connected with a conveying mechanism and used for conveying the glass forwards; the hot bending furnace is provided with a first temperature and a second temperature, so that different areas of the glass obtain corresponding expansion coefficients to form double curvatures, and the double-curvature mold has a first curvature and a second curvature matched with the glass. According to the invention, curvature limitation is broken through, product innovation is realized, the technical bottleneck that only single-curvature glass can be prepared by an existing single-curvature hot bending process is solved, and preparation of double-curvature glass products with two different preset curvatures is successfully realized; the glass can be widely applied to the fields with high requirements on the view field and the imaging precision, such as automobile rearview mirrors, intelligent terminal display modules, optical instruments, security monitoring equipment and the like, and the application boundary of glass products is expanded.

The invention discloses a paper folding module, a stacking structure, a paper folding combination, a soft mechanical arm and a feeding device and method, and belongs to the technical field of soft robots. The paper folding module serves as a core foundation and is mainly composed of a paper folding framework and an airtight coating film; the paper folding framework adopts a buckle structure to eliminate bending rigidity, a limited buckling supporting plate is integrated in the paper folding framework, and the double-curvature shallow shell effect is utilized to provide high-energy-density resistance rigidity and quick reset capacity without positive pressure assistance. Two stacking structures of a stacking frame common cavity structure and a unit splicing structure are derived based on the paper folding module and assembled into an L-shaped soft mechanical arm according to needs, visual feedback can be integrated to form an automatic feeding device, full-process automation of food source positioning, accurate scooping, safe meal delivery and automatic reset is achieved through cooperation of multiple modules, and the automatic feeding device is suitable for large-scale production. And the feeding process is safe and free of damage. The device has the rigid-flexible coupling characteristic and man-machine friendliness, the manufacturing process is simple, the module is flexible to disassemble and assemble, and the device can be widely applied to rehabilitation nursing and other scenes.

The invention discloses a tower-climbing robot walking mechanism suitable for a composite arc-shaped bent guide rail, which comprises a main motor and a rotating gear which are arranged on a rack, and the rotating gear is meshed with the composite arc-shaped guide rail; bearing blocks are arranged on the two sides of the rack, wheel carriers are arranged on the bearing blocks, front-back extending plates are arranged on the wheel carriers forwards, lead screws are arranged at the lower ends of the front extending plates and the lower ends of the rear extending plates, and left and right moving blocks in threaded connection with the lead screws are arranged on the lead screws; a clamping motor is arranged on the front extending plate and connected to the two lead screws through a belt and a belt wheel. The moving block is rotationally provided with a clamping wheel set. The double-curvature clamping mechanism has the following advantages and effects that the double-curvature clamping wheel sets are tightly attached to the curved surface of the composite guide rail, the four wheels are driven by the lead screw and nut mechanism to conduct synchronous clamping, and stable attachment and flexible walking of the robot on the bent guide rail are achieved. Due to the self-adaptive clamping and buffering design, slipping and derailing are effectively prevented, and the crawling stability and reliability are improved.

This invention discloses a laser shock forming method for electric locomotive skin with both single and double curvature, relating to the field of laser shock forming technology. To address the problem of residual stress causing difficulty in accurately forming in the double curvature direction during laser shock forming, the method includes: acquiring a three-dimensional model of the target skin; dividing the target skin into a single curvature forming area and a double curvature forming area based on its curvature characteristics; preparing a blank; firstly, laser shock forming and three-dimensional scanning inspection of the single curvature forming area; after passing inspection, laser shock forming of the double curvature forming area, including: laser shock forming along a first direction followed by three-dimensional scanning inspection and correction until the forming accuracy in the first direction is qualified; performing stress-relief annealing on the workpiece formed in the first direction; and laser shock forming and three-dimensional scanning inspection and correction along a second direction, where the forming accuracy in the second direction is qualified, the second direction being different from the first direction.

The utility model discloses a shelter integrated interior structure made of composite materials, and belongs to the technical field of modular buildings. The structure comprises a top interior trim assembly and a bulkhead interior trim plate, the top assembly adopts a fast-assembly *-shaped aluminum profile keel to achieve 3-6-meter span self-adaption, a middle ceiling plate is combined with a truss reinforced profile through a double-curvature bent aluminum plate to improve the loading capacity, and an integrated air duct assembly adopts gradient sound-absorbing cotton and a nanometer plastic spraying grating. The integrated air duct assembly comprises an air duct, an air duct decorative plate and an air duct grating; the lighting unit comprises a long-strip-shaped lamp arranged in the length direction of the cabin body and an atmosphere lamp strip arranged at the position of the side wall of the bevel edge suspended ceiling. The bulkhead is made of aluminum hexagonal honeycomb composite boards, and three-dimensional assembly is achieved through insertion and a gravity self-locking structure. According to the invention, full-modular assembly is realized, cutting can be carried out according to the size of the shelter, and the manufacturing cost is low; and the method is suitable for rapid deployment scenes such as emergency shelters and mobile medical facilities.

The present application relates to a kind of multi-curvature tree column integrated forming construction method, and its steps are as follows: S1: curvature analysis: by analyzing tree column curvature, the area needing to adopt double curvature plate is evaluated, and material characteristics and processing technology are combined to control local curvature less than preset curvature;S2: stress analysis: multi-curvature wallboard structure is set on tree bionics steel truss using overall suspension type;Load transfer route is set as: load→multi-curvature wallboard structure→auxiliary support→tree bionics steel truss;S3: multi-curvature wallboard structure is made based on special-shaped curtain wall skin positioning matching using BIM technology;S4: construction steel pipe concrete column, hoist tree bionics steel truss, auxiliary support and multi-curvature wallboard structure, and reserve operating space between tree bionics steel truss and multi-curvature wallboard structure;S5: worker completes stainless steel weld full welding, orthopaedics, polishing subsequent work in operating space.

A part made from lignocellulosic material (10) is formed from a single sheet (11) of partially delignified lignocellulosic material impregnated with an impregnation polymer. The part (10) comprises at least one curved portion having a double curvature surface. The part made from lignocellulosic material is produced by a production method implementing a thermoforming step. Use in particular for producing wood veneer structures.

The utility model relates to a multi-curvature arc-shaped expansion joint which comprises a fixed plate and a movable plate, a first arc-shaped part and second arc-shaped parts are arranged on one side of the fixed plate, the curvature of the second arc-shaped parts is smaller than that of the first arc-shaped part, and the second arc-shaped parts are arranged and unfolded on the two sides of the first arc-shaped part. The fixed plate is provided with a first arc-shaped part and a second arc-shaped part, one side of the movable plate is provided with a first arc-shaped groove and a second arc-shaped groove, and the first arc-shaped groove and the second arc-shaped groove are matched with the first arc-shaped part and the second arc-shaped part to form butt joint. The second arc-shaped part extends towards the two sides with the small curvature to form a transition area, the first arc-shaped groove and the second arc-shaped groove of the movable plate and the arc-shaped part of the fixed plate form a multi-contact buffering face, multi-term deformation compensation is achieved, and the effect of stress stepped release is achieved through the curvature difference under the action of torsion. The defect of the bridge expansion joint in torsion resistance is effectively overcome, and the service life of the bridge expansion joint is prolonged.

The application provides a continuous fiber reinforced 3D printing filament forming device and method. The device comprises an upper mold, a lower mold, a positioning device, a heating device and a base. The upper and lower molds are provided with double curvature grooves on the surfaces and are relatively rotatable. The relative rotation of the molds is driven by the positioning device, so as to change the effective cross-sectional size of the material forming channel formed by the grooves of the two molds. The method comprises the following steps: preheating the device and setting the initial angle of the mold; feeding the material containing continuous fibers into the channel for preforming trial production; then adjusting the angle of the mold to reduce the size of the channel according to the forming effect, so that the preformed filament realizes deep impregnation and densification, and finally high-quality filament is obtained. The application solves the problems of the traditional fixed mouth mold, such as the inability to adjust online, poor adaptability and process flexibility. The application can significantly optimize the impregnation effect of the resin on the fiber, reduce the porosity of the filament, and realize flexible and accurate control of the filament diameter. The application is suitable for the preparation of high-performance continuous fiber reinforced 3D printing filament.

The invention belongs to the technical field of arc fuse deposition forming, and particularly relates to an arc additive manufacturing method of a double-curvature part, the stress distribution and deformation condition of a single part in the arc additive forming process are obtained through analog simulation, and a multi-part model coupling scheme is designed according to the model structure characteristics of the part. And matching design is carried out aiming at a high-stress area in the stress distribution and a high-deformation area in the deformation condition, and meanwhile, a plurality of connecting transition areas and reinforcing ribs are added so that the local cross section of the part can be converted into a more stable polygonal structure. According to the method, the high-stress / high-deformation area of the single part is positioned through analog simulation, multi-part model coupling design and transition area connection are combined, reinforcing rib optimization is performed, additional tools are not needed in the additive manufacturing and heat treatment process through iterative optimization, and the problems that the tool input cost is low and the tool adaptability is poor are thoroughly avoided.

The application provides a double-curvature fusion curved surface SLAM navigation method, a longitudinal and transverse double-direction curvature parameter is estimated in real time through double-IMU fusion, an extended information filtering framework containing a double-curvature kinematic model, a laser data curved surface projection compensation algorithm and a path double-curvature compensation algorithm are constructed, and the scheme can accurately depict the curved surface geometric constraint where the robot actually locates; the accumulation of the transverse positioning error is inhibited through online estimation and fusion of the transverse curvature parameter; the accurate description and compensation of the robot side slip effect are realized through the establishment of a kinematic model containing a double-curvature coupling term; the data distortion is eliminated and the environment perception accuracy is improved through the projection of the laser scanning data from a plane to the estimated curved surface; finally, the consistency of the control instruction and the curved surface geometry is ensured through the real-time geometric compensation of the planning path based on the double-curvature parameter, and the stability and trajectory tracking accuracy of the control system under the longitudinal and transverse curvature coupling effect are enhanced.

The utility model relates to a broadband vibration control double-control tuned liquid damper device with a failure protection mechanism, which comprises a double-curvature variable friction pendulum supporting unit, a vibration / vibration control unit, a vibration / vibration control unit, a vibration / vibration control unit and a vibration / vibration control unit, wherein the double-curvature variable friction pendulum supporting unit is arranged above a structure needing vibration / vibration control; the supporting steel platform is arranged above the double-curvature variable friction pendulum supporting unit; the tuned liquid damper body is arranged above the supporting steel platform, and the tuned liquid damper body is used for controlling the wind vibration response of the structure; the collision buffers are arranged at the two ends of the side face of the supporting steel platform, and the collision buffers are used for buffering and limiting under the extremely rare earthquake large-displacement working condition. Compared with the prior art, the broadband vibration control double-control tuned liquid damper device can be used for wind vibration control and has a good earthquake reduction effect, and the situation that when a rare earthquake or even an extremely rare earthquake occurs, the displacement of the damper is too large, and consequently a system fails can be avoided.

The invention discloses a steel arch bridge vault watertight door and a sealing method thereof, relates to the technical field of bridge engineering, and aims to solve the problems of large assembly clearance, quick material aging, high operation torque and the like of a traditional sealing structure. The device comprises a watertight door outer cover, a composite rubber pad and a low-torque transmission mechanism. The outer cover of the watertight door adopts a double-curvature design, the curvature error is less than 0.1 mm / m, and the outer cover is matched with the curvature radius of 15-25m of the vault; the composite rubber pad is of an EPDM / CR / FKM three-layer gradient hardness structure (the hardness is 65-75 HA), the thickness is 8.0 + / -0.2 mm, and strain optimization is achieved through vulcanization bonding. The transmission mechanism adopts a gear amplification type hand wheel, the transmission ratio is 1: 2.5, the maximum torque is 8 N.m, and low-torque opening and closing are achieved. The sealing method comprises the steps of double-curved-surface machining, composite pad installation and pressing detection, the pressing force is controlled to range from 0.15 MPa to 0.20 MPa, and the pressure drop rate of a pressure maintaining test is smaller than or equal to 2%. The large-span steel arch bridge maintenance channel has the advantages of being high in curved surface adaptability, good in sealing performance, convenient to maintain, long in service life and the like and is suitable for large-span steel arch bridge maintenance channels.

The utility model discloses a high-density helical-tooth spline transmission device for a co-rotating parallel twin-screw extruder, which comprises a spline shaft and a threaded block sleeve, and the spline shaft and the threaded block sleeve are in coupling connection through a high-density helical-tooth spline; the tooth number of the high-density helical tooth spline is 18 or 36, the helical angle is 25.75 + / -0.5 degrees, the tooth height is 1.5-4 mm, and the tooth top edge trimming amount is 8-12 microns; the tooth root of the spline shaft is of a double-curvature transition structure, and the double-curvature transition structure comprises a first fillet R1 equal to 0.6 m and a second fillet R2 equal to 1.2 m. According to the high-density helical tooth spline transmission device, the maximum transmission torque reaches 12,000 N.m (the maximum transmission torque in a traditional design is smaller than or equal to 8,000 N.m), and the tooth surface contact stress is smaller than or equal to 900 MPa; the service life of the wear-resistant layer exceeds 8000 hours and is prolonged by 3 times (ASTM G133 wear test) on year-on-year basis. The spline shaft and the threaded block sleeve adopt an H6 / g5 fit clearance, the cold assembly qualification rate is 100%, and the assembly time is shortened by 60%. The synchronous transmission error is smaller than or equal to 0.005 mm, and the vibration noise is smaller than or equal to 72 dB (ISO 10816 standard).

The utility model discloses a platform-resistant flexible support with a cable net structure, and relates to the technical field of photovoltaic supports, the platform-resistant flexible support comprises a plurality of groups of transverse assembly cables and a plurality of groups of longitudinal assembly cables, each transverse assembly cable comprises a pair of first side frames arranged along the east-west direction, a plurality of middle reinforcing frames are arranged between the pair of first side frames, a pair of anchor piles is arranged on the outer side of the first side frame, a first stay cable is installed between the anchor piles and the first side frame, and an installation cable used for fixing a photovoltaic panel is installed on the first side frame and the middle reinforcing frame jointly; the longitudinal assembly cable comprises a pair of second side frames arranged in the north-south direction, and a middle connecting frame is installed between the pair of second side frames. According to the utility model, the transverse assembly cable and the longitudinal assembly cable are arranged, and the double-curvature coupling damping mechanism of the longitudinal assembly cable is matched with the asymmetric prestress tensioning system of the transverse assembly cable, so that the dispersion of wind load pressure can be realized, and the wind resistance effect of the bracket is improved.

The invention discloses a flexible conjugate double-curvature optical waveguide sensor and an application method of the flexible conjugate double-curvature optical waveguide sensor in flexible joint measurement. The flexible conjugate double-curvature optical waveguide sensor comprises two sensing assemblies and a flexible substrate, wherein each sensing assembly comprises a double-curvature optical waveguide, a flexible coating layer, a light emitting device and a light intensity detection device; for each sensing assembly, the light-emitting device and the light intensity detection device are installed at the two ends of the double-curvature optical waveguide respectively, and the outer side of the double-curvature optical waveguide is evenly wrapped with the flexible wrapping layer. The two sensing assemblies are attached to the upper surface of the flexible base body side by side and can deform along with deformation of the base body, and the installation direction of the sensing assemblies is the same as the direction of the flexible base body. According to the flexible conjugate double-curvature optical waveguide sensor and the application method of the flexible conjugate double-curvature optical waveguide sensor in flexible joint measurement, the influence of transverse bending deformation of the sensor on longitudinal tension and compression deformation measurement is effectively reduced, and the tension and compression and omnidirectional bending deformation of the flexible joint can be measured at the same time; and the precision and comprehensiveness of the measurement function of the sensor are ensured.

The invention relates to a bonding and riveting mixed connection light high-strength metal-FRP composite bridge deck slab and a bearing capacity calculation method thereof. The bridge deck is composed of an edge-covered metal plate and an FRP interlayer structure, and an FRP interlayer adopts a pultrusion process and comprises an epoxy hyperbolic web and a panel; the metal plate and the FRP are connected through the epoxy glue layer and the self-plugging rivet in an adhering and riveting mode, and reliable connection and buffering cooperative stress are achieved. According to the bonding and riveting mixed connection system, interface cracking and stripping under the repeated heavy load effect can be effectively restrained, and the overall structure and durability are remarkably improved. Through systematic optimization of structural configuration, connection form and key parameters, the bridge deck has the comprehensive advantages of light weight, high strength, bending resistance, shearing resistance, fatigue resistance, skid resistance, wear resistance, corrosion resistance and the like, the ultimate bearing capacity can reach 30 tons, the weight of the bridge deck is less than 1 / 3 of that of the same steel bridge deck, and the bridge deck is suitable for heavy-load and strong-dynamic-load working conditions, is convenient for prefabricated construction and quick replacement, and has a wide application prospect. And a traditional bridge deck system is efficiently replaced.

Custom folded 3-dimensional plate lattices are modularly assembled to form structures with single and double curvature for use in structural engineering and robotics applications. The plate lattice structural corrugation uses a building block strategy and incorporates custom modified unit cells based on a Kirigami Expanded Miura pattern. This transformation involves expanding the top and bottom zig-zag crease lines into facets and orienting them in space. The structure of these lattices allows for the design of anisotropies in their flexural stiffness by alternating between the Maxwell criterion on bending-dominated and stretch dominated cells. These anisotropies can have value differences of up to 24 times with the same geometry, making them ideal for robotic morphing applications.

The invention discloses a welding, preheating, polishing and detecting integrated method and device for a main arch section of a large-span arch bridge, and belongs to the technical field of intelligent manufacturing of bridge steel structures. A flexible rail base attached to the double-curvature curved surface of a main arch section is constructed, an integrated robot is carried for operation, a circumferential welding robot is adopted to be matched with a tail end four-station rotary table, preheating, welding, grinding and detecting are integrated, and rapid station switching and millimeter-level high-precision self-locking are achieved through a mechanical clamping structure. In the preheating link, temperature closed-loop regulation and control of a welding section are achieved through infrared temperature measurement, in the welding link, visual tracking is adopted to avoid welding path deviation, in the grinding link, force feedback constant force is adopted to guarantee the welding seam forming quality, and in the detection link, welding seam defect imaging and quality judgment are completed through an ultrasonic phased array full-focus algorithm. One-stop continuous automatic operation of preheating before welding, welding, polishing after welding and nondestructive testing is achieved, error accumulation caused by multiple times of clamping is reduced, and the welding quality stability and the operation efficiency are improved.

The invention relates to a drawing forming process for an ultrathin hard stainless steel double-curvature curved surface part. The drawing forming process comprises the following steps that S1, blanking is conducted; s3, drawing and forming: dividing the scalloped segment into a small end, a middle section and a large end; in the forming process, the middle section which is firstly attached to the die is formed firstly, then the small end with gentle curvature change is formed, and finally the large end with rapid curvature change is formed; after die attaching and forming, the tension is gradually unloaded, the pressure is maintained for 60 seconds when the tension force is reduced to 800 KN, so that the stress is redistributed, and then the force is gradually unloaded; s4, removing the allowance of the scalloped segment; and S5, inspection and trimming are conducted, specifically, the scalloped segment with the allowance removed is placed on a testing fixture to inspect the profile precision, the tire attaching gap is mainly inspected, and after forming is conducted according to the three-section type stretch-forming track, it is guaranteed that the tire attaching gap is smaller than 0.5 mm. The method has the effects of reducing the rejection rate of finished products, improving the precision of the finished products and ensuring stable production of the finished products.

The utility model provides a kind of asymmetric flow guide type ceramic-manganese dioxide refractory brick for ladle, including refractory brick body, the hot face of refractory brick body uses double curvature composite surface, the upper 1 / 3 area of double curvature composite surface is first curved surface, and the lower 2 / 3 area of double curvature composite surface is second curved surface;Double curvature composite surface is provided with several micro convex flow guide ridges along the refractory brick length direction;The cold face of refractory brick body uses fractal radiating rib structure, and the fractal radiating rib structure includes main rib and secondary rib, and the main rib and secondary rib form tree network structure.The utility model is combined by double curvature composite surface+micro convex flow guide ridge, realizes the impact strengthening and drainage optimization of molten steel impact area, improves the impact and erosion resistance.

The high-precision milling cutter disc comprises a disc body, tool rests and blades, the multiple sets of tool rests are circumferentially and evenly fixed to the disc body, the blades are arranged on the tool rests in a two-row staggered, non-equal-height and spiral mode, negative rake angle differentiation design is adopted, and double-curvature spiral chip containing grooves are formed between the tool rests and matched with a wave-shaped edge two-stage groove structure. Multiple positioning of the disc body and the tool rest is achieved through a composite deviation positioning screw, a cross-shaped groove body, a positioning check block and a wedge block, a 3.97-4.13 mm precise tool pad is arranged between the blade and the tool rest, and a positioning groove and a connecting block are provided with empty grooves to disperse stress. Cutting mechanical balance is optimized, loads and vibration are dispersed, the chip removal and breaking efficiency is improved, displacement and movement of the tool rest are eradicated, compensation errors are adjusted through the tool pad, it is ensured that radial run-out is smaller than or equal to 0.01 mm, the service life of the blade is prolonged, the problems that an existing milling cutter disc is insufficient in precision, poor in stability and the like are solved, and the high-precision milling requirement of a rail is met.

The present application relates to material shoveling technical field, especially in a kind of narrow space multi-material propelling system based on linkage angle adjustment and double curvature bucket, comprising: frame, bucket, wheel group and linkage adjusting mechanism, the frame is integrated door type structure, and the frame front end is symmetrically installed with turnover support, the bucket is connected with turnover support by pin shaft, the wheel group is installed in the frame lower end, and the linkage adjusting mechanism is installed in the frame upper end rear side, and the linkage adjusting mechanism is connected with the upper end rear side of bucket, and the linkage adjusting mechanism can drive bucket to switch between push mode and transfer mode;The present application is switched between low position hole and high position hole by the cooperation of push rod, locking unit and arc locking frame, and operator only needs to pull up and swing push rod, so that lock pin can be quickly switched between low position hole and high position hole, realize the conversion of bucket between "push mode" and "transfer mode", and the continuous operation efficiency is greatly improved.

The utility model belongs to the caisson technical field, concretely relates to a fill sea to make land caisson, including front wallboard, front wallboard is by a plurality of prefabricated curved surface formwork splicing and is composed, front wallboard presents double curvature parabolic surface shape, front wallboard support column, front wallboard support column is fixed in the side surface of rear wallboard towards front wallboard and supports and connects front wallboard, the quantity of front wallboard support column is a plurality, every prefabricated curved surface formwork is connected with a front wallboard support column, side plate, the side of front and back of side plate is connected with the edge portion of front wallboard and rear wallboard respectively flatly, the bottom end of side plate, rear wallboard, front wallboard is surrounded and is connected in the edge portion of bottom plate. Through the shape design of front wallboard, the wave impact perpendicular to front wallboard is decomposed into vertical climbing and transverse diversion, improve the anti-wave performance of caisson, avoid local vortex concentration, front wallboard is modularized and is assembled into shape by a plurality of prefabricated curved surface formwork, effectively improve construction efficiency, reduce construction difficulty.

The utility model relates to the technical field of aluminum plate machining, in particular to an interior decoration double-curved-surface aluminum plate machining device. According to the technical scheme, the device comprises a machining panel, a first hydraulic rod, a third hydraulic rod and a guide frame, the first hydraulic rod is mounted on the machining panel through a mounting frame, a shear knife is arranged on an output shaft of the first hydraulic rod, a through hole is formed in the machining panel, and frames are mounted at the two ends of the machining panel; a second hydraulic rod is installed on the frame, a clamping frame is arranged on an output shaft of a third hydraulic rod, and a waste collecting box is installed on the bottom end face of the machining panel. A fixing frame is installed on the top end face of the machining panel, a driving mechanism is installed on the rear end face of the fixing frame, a lead screw is arranged on an output shaft of the driving mechanism, and a scraping plate is installed on the guide frame. The aluminum plate shearing machine meets the requirement for aluminum plate machining, avoids inconvenience caused by manual pushing feeding during machining, can collect waste materials generated by shearing, and avoids the situation that production is affected by accumulation.

According to the double-curvature fusion curved surface SLAM navigation method provided by the invention, longitudinal and transverse two-way curvature parameters are estimated in real time through double IMU fusion, and a scheme including an extended information filtering framework of a double-curvature kinematics model, a laser data curved surface projection compensation algorithm and a path double-curvature compensation algorithm is constructed; the geometric constraint of the actual curved surface of the robot can be accurately described; accumulation of transverse positioning errors is inhibited through online estimation and fusion of transverse curvature parameters; by establishing a kinematics model containing a double-curvature coupling item, accurate description and compensation of the robot sideslip effect are realized; by projecting laser scanning data from a plane to an estimated curved surface, data distortion is eliminated, and environmental perception precision is improved; finally, real-time geometric compensation is carried out on the planned path based on double curvature parameters, the consistency of a control instruction and curved surface geometry is ensured, and the stability and trajectory tracking precision of a control system under the longitudinal and transverse curvature coupling effect are enhanced.

The utility model provides a kind of double curved surface array cold head, heat exchange sheet includes multiple periodic arrangement curved surface unit, each curved surface unit is formed by four identical curvature curved surface and is surrounded to form convex structure, adjacent curved surface unit is rotated staggered arrangement in horizontal projection plane, forms the array of cross intersection's double curvature flow channel, so that flow channel width is widened, effectively prevent blockage;The curved surface unit of double curvature generates orthogonal secondary vortex, significantly improves heat exchange efficiency.

The utility model belongs to the technical field of aluminum alloy plates, and discloses a double-curvature skin part forming tool which comprises a base platform, the base platform is a rectangular plate with supporting legs installed at the bottom, the top of the rear wall face of the base platform is fixedly connected with an inverted-L-shaped rack, the bottom of the rack is fixedly connected with an electric cylinder, the electric cylinder is located over the top of the base platform, and the electric cylinder is fixedly connected with the base platform. The bottom of the electric cylinder is fixedly connected with an upper mold; a motor is mounted at the bottom of the base; the plate unloading structure comprises a rotating shaft, a rotating block, a base frame and a lower mold, the rotating shaft is rotationally connected to the top of the base table, the rotating block is fixedly connected to the top of the rotating shaft, the base frame is fixedly connected to the wall face of the rotating block, and the lower mold is movably connected to the wall face of the base frame and located under the upper mold; according to the plate unloading structure, rapid non-contact demolding of the aluminum alloy plate can be achieved through cooperation of the rotatable base frame and the turnover lower mold, and compared with a conventional demolding mode, the plate unloading structure has the advantage that the working efficiency of the device can be improved through rapid demolding.