15results about How to "Guaranteed forming accuracy" patented technology

This invention relates to a dynamic optimization and mold condition assessment method for the stamping process of radiators in the field of information technology. The method includes: acquiring real-time pressure distribution data and real-time strain data of the sheet metal in key areas of the mold during the stamping process; predicting the material deformation trend using a preset deformation prediction model based on the real-time pressure distribution data and the real-time strain data; determining whether the material deformation trend exceeds a preset tolerance threshold; if the material deformation trend exceeds the tolerance threshold, generating a new combination of process parameters through reverse calculation; sending the new combination of process parameters to the stamping equipment control system for dynamic adjustment; acquiring actual size measurement data of the processed product; associating the actual size measurement data with the process parameter adjustment record and inputting it into a mold wear assessment model; and outputting the current mold wear condition assessment result through the mold wear assessment model.

The application relates to a ceramic multi-material continuous forming light-curing additive manufacturing equipment and a process control method thereof. The application is applied to additive manufacturing of multi-material heterogeneous and complex-shaped ceramic components. The ceramic multi-material continuous forming light-curing additive manufacturing equipment comprises a vibration isolation table, a release film conveying module, a multi-material feeding module, a substrate rotating module and a DLP light machine projection displacement module, and each module is installed on the upper surface of the vibration isolation table; the vibration isolation table is a mounting base of the whole equipment and is used for reducing the influence of external vibration on printing precision; the release film conveying module is used for conveying paste and residual paste after curing; the multi-material feeding module is used for feeding different ceramic pastes and realizing material feeding switching; the substrate rotating module is used for bonding and curing ceramic blanks, realizing multi-layer printing and substrate cleaning during material replacement; and the DLP light machine projection displacement module is used for projecting slice patterns to cure the paste and realizing large-format splicing forming.

The invention discloses a plate pre-drawing and dieless mirror image loading composite forming process and a product, and belongs to the technical field of metal component forming and manufacturing. The method is used for solving the problems of cracking, ultra-poor thinning, low dimensional precision and the like in the forming process of the high-strength aluminum alloy thin-wall component with local continuous large-area bulge and local large wall angle characteristics in the aerospace field. According to the method, through two-stage area expansion distribution, the thinning amount of each stage is effectively controlled, and the cracking problem caused by one-time large deformation in a single process is avoided. And mirror images are cooperatively loaded on the local part of the plate to form a three-dimensional stress state, so that the forming limit is improved. And in-mold constraint aging synchronously realizes strengthening and shape righting, and is obviously superior to the traditional process.

The utility model provides a kind of double-arrow-shaped metamaterial corrugated strip multi-step semi-automated forming platform, the utility model places initial rectangular corrugated strip in forming area first, through the folding mechanism and pressure block propulsion mechanism with spatial phase difference distribution characteristics, combined with multistage progressive extrusion path planning strategy, realize double-arrow-shaped metamaterial corrugated strip layer-by-layer cumulative forming under the dynamic load exerted by electric control system, and the forming angle and precision of material after forming are guaranteed by fine adjustment sliding table and screw clamp, after forming is completed, pressure maintaining treatment is carried out by the pressure maintaining force of electric cylinder, material springback is reduced, and finally high-precision double-arrow-shaped metamaterial corrugated strip is obtained.

This invention discloses a rectangular cross-section cast iron continuous casting crystallizer, comprising a crystallizer graphite sleeve, a crystallizer water-cooling sleeve, a small transition plate, and a large transition plate sequentially fitted onto the outer wall of the crystallizer graphite sleeve, which are connected in sequence. A crystallizer end pressure plate is also provided at one end of the crystallizer graphite sleeve, connected to one end of the crystallizer water-cooling sleeve. Through holes with the same cross-sectional dimensions as the outer perimeter of the crystallizer graphite sleeve are opened at the center of the small transition plate, the large transition plate, and the end pressure plate. The water-cooling plate in this crystallizer, through optimized flow channel layout, solves the problems of uneven cooling at the corners of rectangular cast billets and the problems of leakage, water cross-contamination, deformation, scaling, and insufficient heat exchange inherent in traditional water-cooling plates, achieving uniform cooling, reducing the risk of local overheating and cracking, and ultimately improving the forming quality of the cast billet. A method for manufacturing the rectangular cross-section cast iron continuous casting crystallizer water-cooling plate is also disclosed.

The utility model discloses a kind of automobile parts welding with rack, belong to automobile parts welding technical field.Selected battery module electrode connecting sheet (copper / aluminium sheet) as typical welding object, the utility model includes moving device, moving device includes three bottom plate one, two bolt holes are symmetrically arranged in bottom plate one two sides, bolt hole is connected bolt, and is connected between bottom plate one by connecting sheet, bolt;Still include fixing device one, fixing device one includes frame one, and welding frame is installed in frame one top, and T-shaped groove one is set in welding frame inner ring, four T-shaped sliders one are matched and set in T-shaped groove one, three electric push rods two are installed on T-shaped slider one, and clamping block one is installed in electric push rod two top.The utility model places rack for automobile parts welding by modularization design, installs multidirectional arbitrary adjustment clamp for welding frame, solves the problem that common automobile parts welding with rack function area is divided chaos, clamping type is single, inconveniently moves.

The invention provides a variable-pipe-diameter equal-wall-thickness pipe blank preparation and forming process which is characterized in that liquid expansion pre-forming, solution treatment and liquid expansion final forming are adopted for a contracted pipe blank, so that the phenomenon of nonuniform product wall thickness caused by nonuniform material flow can be eliminated on the basis of fully ensuring the forming precision; and the product quality and the long-term reliability are improved. Compared with the prior art, the process has the advantages that the heating times are reduced, the processing difficulty and the production cost are greatly reduced, and the processing requirements of high-performance complex parts can be met.

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 combined forming hydraulic machine with punching, forging and extruding functions and belongs to the technical field of metal processing. The combined forming hydraulic machine comprises a base and a machine body, the machine body is fixedly connected to the base, a top plate is further connected to the base through a sliding rod, and the combined forming hydraulic machine further comprises two groups of symmetrically arranged mounting plates, one group of the mounting plates is fixedly connected to the top plate, the other group of the mounting plates is fixedly connected to a driving end of the machine body, a forming part is detachably connected to the mounting plates, fastening screws are threadedly connected to the mounting plates, and the fastening screws are used for locking the forming part. The combined forming hydraulic machine is fully compatible with three core plastic forming processes of punching, forging and extruding, a plurality of single-process special hydraulic machines are not needed to be arranged, the equipment procurement cost and the site occupation area of an enterprise are greatly reduced, the comprehensive utilization rate of the equipment is effectively improved, and the combined forming hydraulic machine is suitable for the flexible production demand of small and medium-sized enterprises for multiple varieties and small batches.

The invention discloses an intelligent processing control system for a special-shaped curved surface of an optical element. The intelligent processing control system comprises a dynamic visual angle vision measurement module, a dual-process processing module, an intelligent control module and a data storage and interaction module. Collecting image data of a processing area in real time through a dynamic visual angle vision measurement module; a deep learning analysis unit, a dual-process collaborative decision-making unit, a cross-process error compensation unit and a real-time control unit in the intelligent control module are used for processing the data and generating a control instruction; the dual-process machining module executes abrasive jet rough machining or laser micro-cladding finish machining / repairing. All the modules form a real-time closed loop, the dynamic visual angle vision measurement module continuously collects machining results and feeds the machining results back to the intelligent control module, and self-adaptive adjustment based on real-time detection is achieved. According to the method, efficient, high-precision and self-adaptive intelligent machining of the special-shaped curved surface is achieved.

The present application belongs to the field of forging technology, and particularly relates to a cold heading machine, comprising: a machine body, a working platform is arranged on the machine body; a die, the die is arranged on the working platform for placing a workpiece; a pressure head, the pressure head is arranged above the die, the pressure head is driven by a pressure system to approach the die and perform cold heading processing on the workpiece, the pressure head is adjusted by an adjusting mechanism; the die further comprises: a die base, the die base is arranged on the working table, a multi-dimensional sensing system is arranged in the die base; a die bushing, the die bushing is arranged above the die base, a die main body is arranged in the die bushing; wherein, the multi-dimensional sensing system monitors the working state of the die by monitoring the cold heading pressure, temperature and abnormal sound at the die, compared with the prior art, the present application can find early abnormalities such as micro-cracks and material adhesion of the die in real time by monitoring the pressure, temperature and abnormal sound signals of the die through the multi-dimensional sensing system, thereby avoiding the batch product from being scrapped and reducing the production cost.

This application provides an installation method for a combined flexible cable structure and rigid membrane frame roof structure in the field of large-span spatial structure construction. The method includes dividing the roof into multiple fan-shaped construction zones; assembling rigid membrane frame units; pre-tensioning the flexible cable net structure; lifting and welding the rigid membrane frame units; lifting and connecting the pre-tensioned flexible cable net structure to the corresponding rigid membrane frame units; tensioning the flexible cable net structure; and fixing the flexible cable net structure. This application divides the roof into multiple construction zones and performs the assembly of rigid membrane frame units and pre-tensioning of the flexible cable net structure on the ground, which offers favorable conditions, easy precision control, and reduces uncertainties on-site. Subsequently, the rigid membrane frame units and the pre-tensioned flexible cable net structure are installed sequentially, followed by a coordinated graded tensioning process. This proactively incorporates the deformation of the rigid membrane frame units into the control system, coordinating it with the forming process of the flexible cable net structure, thus avoiding the problems of excessive passive deformation or repeated adjustments of the frame in traditional methods.

This utility model discloses a friction stir additive manufacturing substrate mounting fixture with anti-deformation function, belonging to the field of additive manufacturing technology. It includes a rectangular fixture mother plate with a weight-reducing hole in the middle. A groove is formed on the lower surface of the rectangular fixture mother plate outside the weight-reducing hole. A grid-shaped weight-reducing mesh is arranged in the groove outside the weight-reducing hole, dividing the groove into several mesh slot units. Several threaded mounting holes are equally spaced on the upper surface of the rectangular fixture mother plate. This utility model simply and effectively meets the requirement of preventing substrate deformation, can effectively adapt to plates of different materials and thicknesses, provides stable and reliable additive manufacturing conditions, and ensures the forming accuracy of the workpiece during friction stir additive manufacturing from the perspective of suppressing deformation.

The invention belongs to the technical field of laser additive manufacturing, and particularly discloses a method for extracting a milling center line of a thin-wall part in laser cladding additive manufacturing, which is characterized by specifically comprising the following steps: S1, establishing a three-dimensional point cloud model of the top morphology of a thin-wall cladding part under a base coordinate system of a robot; s2, preprocessing three-dimensional point cloud data in the three-dimensional point cloud model; s3, generating a milling contour grey-scale map according to the preprocessed three-dimensional point cloud data; and S4, extracting a milling center line according to the milling contour grey-scale map. According to the method, the reliable milling center line is extracted from the uneven three-dimensional morphology caused by process fluctuation, so that the problems of milling positioning misalignment and out-of-control machining quality caused by dependence on a preset fixed path in a traditional method are solved, an automatic and intelligent guide basis is provided for subsequent precise milling of a robot, and the precision of the robot is improved. And the continuous stability and the forming precision of the cladding-milling composite process are guaranteed.

This invention relates to a titanium alloy leading edge forming mold for composite fan blades of aero-engines. The mold is used for diffusion bonding forming of a first preform (4) and a second preform (5). It includes a lower mold (2) for assembling the second preform (5), a core mold (3) for placing between the first preform (4) and the second preform (5), and an upper mold (1) for pressing on top of the first preform (4). Each of the first preform (4), the second preform (5), and the core mold (3) has an ear piece (7) at its end. This ear piece (7) extends out of the mold when the upper mold (1) and the lower mold (2) are closed. The ear pieces (7) of the first preform (4), the second preform (5), and the core mold (3) are fixed by pins (6). Compared with the prior art, this invention has advantages such as convenient processing and high precision.