285 results about "Deformation control" patented technology

The embodiment of the invention provides a turning and milling combined machining deformation control method and system for a special-shaped part, and is used for the technical field of numerical control machining. The turning and milling combined machining deformation control method for the special-shaped part comprises the steps that structural feature analysis and process association marking are conducted on design data of the special-shaped part to generate a feature association data set, and clamping and process planning are conducted according to a machining constraint database and the feature association data set to generate initial turning and milling combined machining process data; cutting parameter multi-objective optimization solution is carried out on the initial turning-milling combined machining process data to obtain a turning-milling cutting parameter set, and multi-axis linkage analysis and instruction collaborative planning are carried out on the turning-milling cutting parameter set according to the equipment operation feature set to generate a combined machining control instruction set. According to the method, through part key feature recognition and risk marking, combined machining control instructions are generated after layered digital twinning verification in combination with process multi-objective optimization, and the one-time qualified rate of special-shaped part machining and turn-milling combined machining process stability are improved.

The invention relates to the technical field of pipe truss tubular joint welding quality control, in particular to an assembly type pipe truss tubular joint butt-joint tensioning anti-deformation welding method and system which comprises the following steps that S1, an intersecting line is divided in the circumferential direction, and butt-joint references and deformation monitoring point positions of all partitions are calibrated; s2, circumferential distributed tensioning force application point positions are set; s3, a differential pre-tightening force gradient in the circumferential direction of the intersecting line is set, and pre-tensioning force is applied; s4, synchronous cooperation of tensioning actions and deformation control of all the to-be-welded nodes is carried out; s5, welding is conducted in a partitioned and segmented mode, and the pre-tensioning force of the partition corresponding to the intersecting line is dynamically adjusted in the welding process; and S6, after welding, the pre-tensioning force of each subarea is released, and node deformation checking and precision correction are synchronously completed after force release. According to the dynamic pre-tightening force adjusting method for partition differentiation pre-tightening force gradient distribution and welding thermal cycle time sequence matching, the residual stress peak value of the node core area is greatly reduced, and the welding quality and the structural safety of the tubular node are remarkably improved.

The invention discloses a super-large broken line glass curtain wall installation method which comprises the following steps: based on curtain wall design parameters, obtaining deformation trends of a curtain wall in different installation stages, and based on the deformation trends, respectively determining deformation control thresholds of a straight line section component and a broken line node component of the curtain wall; adjustable hydraulic supporting tools are arranged in the installation area of the linear segment component and the installation area of the broken line node component respectively, and the adjustable hydraulic supporting tools are used for supporting glass plates of the linear segment component and the broken line node component; and staged installation is carried out according to the time sequence that the linear segment components are installed firstly and then the broken line node components are installed. Deformation trends of different installation stages are obtained in advance based on curtain wall design parameters, differentiated deformation control threshold values are set for the straight line section component and the broken line node component, and refined control over the rigidity sudden change area at the broken line node is achieved; the adjustable hydraulic supporting tool is arranged, and the supporting force is dynamically adjusted through the hydraulic rod.

The invention discloses an engine blade welding deformation control method based on pre-deformation and active cooling, and relates to the technical field of precision welding manufacturing, and the engine blade welding deformation control method comprises the following steps: collecting multi-source real-time monitoring data in a blade welding process, and inputting the data into a trained welding heat-force coupling dynamic model; performing nonlinear interaction analysis on real-time monitoring data through a built-in deformation semantic analysis unit in the welding heat-force coupling dynamic model, extracting core characteristic parameters, and creating a regulation and control decision system comprising a strain state space, a temperature control action space and a deformation compensation evaluation function by utilizing the strain state mapping set; the method is used for predicting a deformation response value corresponding to each regulation action. According to the method, through a regulation and control decision system comprising a strain state space, a temperature control action space and a deformation compensation evaluation function, deformation response is predicted, an optimal cooling path and a pre-compensation quantity regulation and control scheme are generated, and finally dynamic optimal control over blade welding deformation is achieved.

The present application relates to a kind of large section deep soft rock tunnel combined support system and construction method, the present application is combined with elastic shell theory and equivalent section method, a steel arch frame-grating combined support mode suitable for deep large section soft rock tunnel is proposed, the support rigidity of simply using steel arch frame or grid steel frame is overcome or supported, the disadvantage of lower in long-term large deformation unfavorable surrounding rock stability and deformation control, solve the problem that the stress of existing support structure is larger, the self-bearing capacity of surrounding rock cannot be fully exerted, cause material waste is serious, the safety factor of support structure is low, difficult to guarantee the stability of tunnel, and provide a simple and practical construction method for tunnel excavation and support.

The invention discloses a bionic self-sensing deformable pipeline robot and a using method thereof.The bionic self-sensing deformable pipeline robot comprises a robot shell, multiple thorn feet are distributed on the periphery of the robot shell in an array mode, and a vibration module used for driving the thorn feet and an electric heating module used for deformation control over the thorn feet are arranged in the robot shell; a control center, a communication module and an energy module are further arranged in the robot shell. The vibration module, the electric heating module and the communication module are electrically connected with the control center. A multifunctional detection unit is further integrated at the end of the robot shell and electrically connected with the control center and the energy module. According to the robot, the motion adaptability of the robot in a pipeline and the environment sensing capacity of the robot can be improved, and the robot can move in a narrow pipeline space easily.

The invention belongs to the technical field of welding, and discloses a welding deformation control method and device, electronic equipment and a storage medium. The method comprises the steps that key features in an acceptance target for a target structural part and constraint conditions of the key features are determined; the welding process parameters and the assembly constraint conditions are input into a pre-constructed welding deformation prediction model, and the deformation of the key features after welding is obtained through simulation welding; calibrating the welding deformation prediction model by using the actually measured data so as to enable the prediction error of the deformation to be within a preset error range, and obtaining the calibrated deformation; solving the reverse compensation amount of the key features before welding by taking the constraint condition as a target and the calibrated deformation amount as input; and the reverse compensation amount is converted into a manufacturing instruction, welding is conducted based on the manufacturing instruction, and the target structural part is obtained.

The invention relates to a quality control method in a processing process of a glass fiber sleeve in the technical field of new materials, which comprises the following steps: aiming at a specific distribution area of material deformation, adjusting local pressure distribution parameters of processing equipment, obtaining surface flatness data of the adjusted material, and determining whether the deformation control capability reaches a preset standard or not; if the line definition degree does not meet the preset requirement, obtaining adjusted line image data by adjusting the cooling measure strength of a shaping link, and determining the improvement amplitude of the line definition degree; according to the improvement amplitude of the line clarity, continuously optimizing cooling parameters of a shaping link to obtain final line durability performance data, and judging whether the line stability meets production requirements or not; and for the fluctuation range of the grain quality between batches, obtaining optimized production data by adjusting comprehensive parameters of processing and shaping links, and determining a final improvement result of the surface quality consistency.

The application discloses a ship segment structure welding reverse deformation tooling and relates to the technical field of ship structure welding, which comprises a supporting seat, and a stabilizing plate is threadedly connected to the top of the supporting seat. The application remarkably improves the adaptability and stability of clamping through the spherical surface self-adapting structure and angle locking design of the positioning and clamping mechanism. The positioning and clamping mechanism adopts a spherical pair connection formed by a movable ball and a movable sleeve, so that the arc-shaped clamping plate can automatically adjust the posture according to the actual inclination angle of the segment end face, the clamping plate is ensured to be completely attached to the end face, and stress concentration or unstable clamping caused by poor contact of the traditional rigid clamping is avoided. Meanwhile, the movable ball surface can be tightly pressed by the fixed threaded column, the relative position of the spherical pair can be reliably locked after the angle is adjusted, the clamping angle change caused by vibration during welding is effectively prevented, the continuous and stable application of the clamping force is ensured, and therefore the precision and reliability of the reverse deformation control are improved.

This invention discloses a pre-positioned steel support system suitable for small, ultra-deep foundation pits, comprising several lattice columns, several connecting devices, pre-positioned steel supports, several steel strands, several through-hole jacks, several servo cylinders, and a hydraulic system. The pre-positioned steel supports include a steel waler and several corner horizontal braces set at the four corners of the steel waler. Several servo cylinders are spaced along the circumference of the steel waler on its outer surface. The servo cylinders extend and retract under the action of the hydraulic system to achieve active deformation control of the diaphragm wall. Several through-hole jacks, under the action of the hydraulic system, simultaneously raise and lower the pre-positioned steel supports by synchronously extending and retracting the corresponding steel strands. This invention enables a construction method of pre-positioning concrete or steel supports for simultaneous excavation, lowering, and support, effectively shortening the construction period and reducing the time without support during over-excavation. It has advantages such as high mechanization, strong construction safety, and high turnover rate.

The present invention discloses a method for controlling deformation during the machining of large, complex ellipsoidal parts based on dynamic cutting planning: First, the blank is clamped in an initial position, a machining coordinate system is set up, and the non-contact measurement and adjustment of the reference surfaces for the internal and external shapes of the blank are completed. Subsequently, the cutting surfaces are subdivided. Based on the feature decomposition of the product, the theoretical cross-sections are compared with the measured cross-sections in the same coordinate system, and a machining area assessment is performed based on the cutting surfaces to guide the overall machining route planning and the local machining route planning.Based on the machining path planning and the available clearances, a dynamic workpiece adjustment is achieved using an adaptable support system to ensure stable machining under variable cutting depths and to solve the problem of overall deformation in complex ellipsoidal parts. In conjunction with the adaptable support, the system detects deformation of highly reinforced features in areas with large rib heights. Based on the relationship between circular displacement and remaining wall thickness, toolpath compensation is implemented to achieve precise machining compensation for local distortion.The invention solves the major difficulties in the CNC machining of large, complex, thin-walled ellipsoidal parts with regard to accurately ensuring the remaining wall thickness, compensating for local deformations, and controlling the overall deformation, which further improves the reliability of the overall production of such parts.

The invention discloses a soft rock large deformation control method and a rapid support system suitable for TBM tunnel construction method characteristics, the method is implemented based on an anchoring support system composed of a short anchoring support system and a long anchoring support system, and the method is suitable for an open TBM construction scene: in a TBM tunneling process, before a shield is exposed, the shield is not exposed, and the long anchoring support system is not exposed; a short anchoring support system of a full-length anchoring anchor rod structure is timely arranged in the radial direction of the 180-degree area of the upper half ring of the tunnel section through a cutter head edge cutter hole, and the short anchoring support system and a shield cooperate to form an initial deformation control system; after the shield is exposed, according to the deformation degree of the surrounding rock, full-length anchoring anchor rods or pre-stressed anchor cables are adopted in a graded mode, long anchoring supporting systems are arranged at intervals with the short anchoring supporting systems in a spiral mode, then the long anchoring supporting systems are cooperatively borne with steel arches, reinforcing meshes and sprayed concrete, and the long anchoring supporting systems are matched with 70m system sprayed concrete and 1000m secondary lining construction behind a tunnel face. According to the method, the displacement around the hole is effectively controlled, the TBM is prevented from being stuck, and the construction safety and efficiency of the open-type TBM in the soft rock large-deformation geology are improved.

The present application relates to the chuck cutting mode in the field of machining, in particular to a high-precision thin-wall flange part turning cutting deformation control method. The method solves the technical problem of size precision reduction caused by direct cutting of the workpiece chuck in the prior art when machining the thin-wall flange part. The method comprises the following steps: rough turning: rough machining of the outer circle and inner hole of the part; solid solution aging: solid solution aging of the part to remove stress; semi-fine turning: semi-fine turning of the inner hole and outer circle of the part to release stress again; turning shape: clamping the small end of the part, machining all sizes of the part from the large end to the small end at one time, and then machining the process groove, at this time, the workpiece cannot be cut off, and the process is completed; flat end face: clamping and positioning the large end face of the workpiece, using layer-by-layer cutting method at the chuck, and direct cutting is not allowed, so that the stress generated in the process of cutting the chuck is slowly released, and the relevant sizes can be effectively guaranteed without deformation after cutting.

The application discloses a welding process parameter optimization method based on finite element simulation and a response surface method, and is used for welding residual stress and deformation control problems of large and complex structures in a nuclear fusion device. The method is characterized in that: a thermal-mechanical coupling finite element model of a welding process is constructed, mechanical responses under different process parameter combinations are obtained, an approximate function relationship between process parameters and welding responses is established by using the response surface method, multi-objective optimization is realized at a mathematical model level, and an optimal process parameter combination meeting welding performance requirements is obtained. The application establishes a mathematical mapping model between process parameters and key performance indexes such as welding residual stress and deformation by using the response surface method, and then performs multi-objective optimization on the response surface, so that a large amount of repeated simulation and artificial judgment in a traditional trial-and-error method are avoided, and the optimization efficiency and systematization are significantly improved.

This invention relates to the field of deep foundation pit construction technology, and particularly to a control system and method for deep foundation pit deformation based on green and environmentally friendly principles. The method includes: acquiring geological survey data and environmental data of the area to be constructed in the deep foundation pit; constructing an integrated geometric model of the deep foundation pit construction area; determining whether the green and environmentally friendly performance of the support structure used in the deep foundation pit meets the standards based on the recycled material replacement rate, and adjusting the proportion of recycled materials incorporated into the support structure according to the ratio; determining whether the deformation of the deep foundation pit after simulated support construction is within a reasonable range based on the deep foundation pit deformation deviation rate, and adjusting the support structure parameters according to the relative difference; determining whether the impact of the deep foundation pit construction process on the surrounding environment meets the standards based on the deep foundation pit construction disturbance index, and optimizing the support inclination angle after adjusting the support structure parameters according to the difference. This invention improves the accuracy of deep foundation pit deformation control.

The present application relates to a kind of variable stiffness fiber reinforced programmable soft actuator unit, including flexible matrix and controllable module, flexible matrix is pipeline-like, and controllable module is fixed on the outer layer of flexible matrix distribution;Controllable module uses single-layer module or the multi-layer module arranged inside and outside;Each layer of controllable module is wound by at least one variable stiffness fiber according to certain angle and direction;The control line of connection controllable module is distributed in the inner cavity of flexible matrix, and is connected with external control system;The two ends of the inner cavity of flexible matrix are blocked and leave medium filling and discharging mouth, and fluid medium is filled in the inner cavity;Controllable module state is two kinds of flexible state and rigid state, when carrying out the deformation control of soft actuator unit, by controlling part variable stiffness fiber to be rigid state, another part variable stiffness fiber is flexible state, realizes the deformation control of soft actuator unit.

The application discloses a kind of arch-shaped large-span cable bridge of triangular cross section and installation method thereof, including the arch-shaped bridge that is arched upward and presents arc-shaped structure, cable protection pipe and / or communication protection pipe are laid in the arch-shaped bridge inside along its length trajectory direction, the cross section of the arch-shaped bridge along its length trajectory direction presents triangular structure, the arch-shaped bridge that is arched upward and presents arc-shaped structure sag-span ratio is 0.1~1.0;The cross section of arch-shaped bridge adopts isosceles triangle structure, can satisfy the requirement of cable laying, and the vertical load and transverse horizontal wind load of bridge are possibly reduced to maximum;With the sag-span ratio of 0.1~1.0 arch-shaped longitudinal section, bearing capacity is good, and deformation control is good;The upper chord truss main steel pipe of arch-shaped bridge, lower chord truss single-side chord and lower chord truss opposite side chord are all made of round steel pipe, and wind resistance is good.

The application discloses a kind of conversion thick plate design methods, it is related to building engineering technical field, to improve that concrete can be based on in multiaxial compression state compression strength and shear bearing capacity, with shear span ratio as reference index, conversion thick plate section punching, shear checking method is improved;Improved slab strip division method and the method for calculating internal force considering two-way bending moment and torsional moment combination effect is used.Compared with conventional technology, the application fully taps the potential of shear bearing capacity improvement of concrete in multiaxial compression state, realizes the optimization of conversion plate thickness, and the thickness of conversion plate can be optimized by 50% under extreme conditions;The slab strip division of the application is clearer, more reasonable, and the design result is safer with deformation control and reinforcement structure requirements.

The application relates to a blade clamping method and belongs to the technical field of blade manufacturing, which solves one of the problems that the deformation control effect is poor, easy to adhere or the clamping steps are complicated in the existing additive manufacturing blade heat treatment blade clamping process. Specifically, the method comprises the following steps: preparing a tool; pre-adjusting the tool and loading the blade, adjusting the limiting spacing of a lower end positioning mechanism and an upper end positioning mechanism, vertically placing the blade into the tool, assembling a lower end edge plate clamp and an upper end edge plate clamp to clamp the upper and lower end edge plates of the blade, assembling and adjusting a blade profile support assembly, adjusting the length adjusting piece and the angle adjusting piece of the blade profile support assembly, so that the profile pressing head is in close contact with and tightly presses the blade profile, and the clamping of the blade is completed and the blade is heat treated in a furnace. The application realizes good deformation control effect, is not easy to adhere and has simple clamping steps in the additive manufacturing blade heat treatment blade clamping process.

The present invention discloses a flexible robot deformation control and environment adaptation system based on deep learning, which includes a data acquisition unit, a deep learning control unit, and an execution unit. The data acquisition unit includes a medium characteristic perception module and a material state monitoring module, which respectively collect multi-dimensional physical parameters of the environment and the state parameters of the body material; the deep learning control unit processes the parameters through a preset deep learning model and a closed-loop collaborative control logic and generates deformation control instructions; the execution unit drives the robot to complete the target deformation; through the cooperation of multiple modules and the integration of deep learning algorithms, this system solves the problem of insufficient deformation control accuracy under the coupling influence of the environment and material state in the prior art, and realizes the precise deformation and stable adaptation of the flexible robot in a complex environment.

This invention discloses an adjustable gear ring die-forming and quenching mechanism, comprising an inner ring die assembly, an outer ring die assembly, an upper die assembly, and a base plate. The inner ring die assembly is used to fix and press the inner ring of the gear ring; the outer ring die assembly is used to press the outer ring of the gear ring and, in conjunction with the inner ring die assembly, controls the deformation of the gear ring; the upper die assembly is used to press the tooth surface of the opposing gear to control tooth surface deformation; the base plate supports the part, the inner ring die, and the outer ring die. This invention, through the coordinated design of the inner ring die assembly, the outer ring die assembly, and the upper die assembly, achieves positioning and clamping of different gear parts. It can not only adapt to the clamping of parts of various sizes and shapes but also reduces the design and manufacturing of die-forming tooling. The entire die-forming and quenching process is highly automated, simple to operate, and has high control precision, significantly improving the die-forming and quenching efficiency of gear and gear ring parts.

The invention relates to a thin-wall component machining deformation control method which comprises the following steps that a tool is used for cutting a blank, a core shell is manufactured, the core shell is provided with a main shell body and an auxiliary shell body, the outer diameter of the main shell body is larger than that of the auxiliary shell body, a main end hole is further formed in the main shell body, an auxiliary end hole is further formed in the auxiliary shell body, and a process block is further arranged in the auxiliary end hole; a protective belt is wound on the surface of the main shell, so that the core shell and the protective belt form a core shell assembly; partial materials of the main shell and the protective belt are cut off through a cutter, feature holes are formed in the surface of the core shell assembly, and then the cutter is used for cutting off the process blocks; and after the core shell assembly, the positioning plate and the machine tool spindle are separated from one another, machining is finished. By adopting the technical scheme provided by the invention, after the residual thermal stress in the core shell is greatly released by changing the process sequence, the protection belt is wound, and then the characteristic hole is formed by cutting, so that the shrinkage deformation difference between the protection belt and the core shell is reduced, and the machining precision and the appearance quality of the core shell assembly are improved.

The invention relates to the technical field of aero-engine maintenance, and discloses a maintenance method for reducing the failure rate of aluminum element content exceeding of lubricating oil of an accessory casing of an aero-engine so as to reduce the failure rate of aluminum element content exceeding of the lubricating oil of the accessory casing of the aero-engine. Comprising the following steps: 1) according to an easy-to-wear area of an aluminum bushing of an accessory casing to be maintained, determining a corresponding area of the aluminum bushing to be strengthened as a laser shock strengthening area, and setting machining allowance; (2) determining a deformation control area and machining allowance of the aluminum bushing to be strengthened; (3) carrying out laser shock peening pretreatment on the aluminum bushing to be subjected to peening processing; and 4) performing laser shock peening on the laser shock peening area of the aluminum bushing to be subjected to peening processing, so that the abrasion loss in the peening area of the aluminum bushing can be reduced by 52%, the spectral aluminum element content of lubricating oil of the accessory casing is reduced by 38.5%, and meanwhile, deformation and laser burn of the aluminum bushing caused by laser shock peening are avoided.

The application discloses a deformation control device and a construction method for large-span and high-strength steel secondary beam construction, the device comprises a secondary beam, a floor / roof floor support plate and a concrete layer which are sequentially arranged from bottom to top, a supporting rod is arranged below the secondary beam, a detachable bolt-type clamp is arranged between the supporting rod and the secondary beam, a pre-tightening force adjusting device is arranged between the supporting rod and the secondary beam, and a beam end connecting assembly and a supporting rod connecting assembly for connecting the pre-tightening force adjusting device are arranged at the two ends of the secondary beam and the bottom of the supporting rod respectively. The bolt-type clamp design is adopted, various secondary beam specifications can be compatible, good universality is achieved, conventional tool combinations are used for tensioning, the mounting and dismounting steps are effectively simplified, the device can be repeatedly used, the overall space occupation is small, a high supporting frame does not need to be arranged, and the construction of the structure below is not affected. The device is suitable for large-span and heavy-load building structures such as industrial floors and planting roofs, and has a good application prospect.

This invention discloses a double-row pile retaining structure for foundation pits and its construction method, aiming to provide a double-row pile retaining structure for foundation pits with good deformation control, strong resistance to earth pressure, and high stability. A double-row pile retaining structure for foundation pits includes: a front row of piles, which are set in the soil; a front row of pile capping beam, with the top of the front row of piles connected to the front row of pile capping beam; a rear row of piles, which are set in the soil, with the front row of piles located between the rear row of piles and the foundation pit; a rear row of pile capping beam, with the top of the rear row of piles connected to the rear row of pile capping beam; a tie beam, connecting the front row of pile capping beam and the rear row of pile capping beam; and lapped steel sections, which are inserted into the soil, the lapped steel sections are inclined, the lower end of the lapped steel sections is connected to the rear row of piles, and the upper end of the lapped steel sections is connected to the tie beam or the front row of pile capping beam.

The embodiment of the application provides a dielectric gel material electrically induced deformation control method and system, and relates to the technical field of flexible manipulators. The method comprises the following steps: receiving a detection instruction of a dielectric gel actuator of the flexible manipulator immersed in a conductive biological solution; applying a detection signal to the dielectric gel actuator according to the detection instruction, and acquiring an electrical characteristic of the dielectric gel actuator; when the electrical characteristic changes by a preset change, identifying a contact state of the dielectric gel actuator and a target sample; in the case of identifying the contact state, adjusting a main driving voltage applied to the dielectric gel actuator, so that the electrical characteristic is kept at a preset contact state value. The dielectric gel material electrically induced deformation control method and system provided by the application can significantly improve the stability and reliability of dielectric gel material electrically induced deformation control.

The invention discloses a high-temperature gas cooled reactor control rod drive wire test device and a test method, the test device comprises a vertically arranged pressure-bearing container formed by connecting a plurality of pressure-bearing cylinders, the test device also comprises a deformation control device, the pressure-bearing container is a multi-degree-of-freedom pressure-bearing container, the top of the multi-degree-of-freedom pressure-bearing container is connected with a foundation through a mounting flange, and the deformation control device is connected with the deformation control device. A sealing flange cover is installed at the bottom of the multi-degree-of-freedom pressure-bearing container, the multi-degree-of-freedom pressure-bearing container is provided with a deformation unit, the deformation unit comprises a pressure-bearing barrel and an expansion joint installed on the pressure-bearing barrel, and the deformation control device is connected with the pressure-bearing barrel in the deformation unit and controls displacement of the pressure-bearing barrel. According to the invention, the expansion joint is adopted to enable the pressure-bearing container to generate controllable and settable deformation, and after installation, deformation units and deformation control devices arranged at different positions can generate various forms of deformation, so that more accurate control rod operation drive line simulation can be provided; and the control rod falling time and the performance life of the control rod drive wire can be conveniently researched.

This invention relates to a processing method for ensuring the coaxiality of the end shafts at both ends of a frame structural component. The frame structural component includes a frame beam and end shafts welded to both ends of the frame beam. The processing method includes the following steps: pre-machining the inner holes of the end shafts; marking cross center lines at both ends of the frame beam and on the two end shafts respectively; placing the frame beam and end shafts on a worktable, aligning the cross center lines at the ends of the frame beam with the corresponding cross center lines of the end shafts, and coarsely adjusting the coaxiality accuracy of the end shafts; welding multiple adjustment support plates to both ends of the frame beam, with one side of the adjustment support plate and the outer end face of the frame beam on the same plane; installing wedges between the adjustment support plates and their corresponding end shafts; adjusting the position of the end shafts using the wedges to finely adjust the coaxiality of the end shafts; initially fixing the end shafts by spot welding; micro-deformation controlled welding; and fine-machining the inner holes of the end shafts. This invention can effectively ensure the coaxiality of the end shafts of large structural components and has high repeatability.

The invention discloses a deformation control method and device for a composite material, and belongs to the technical field of aviation equipment repair. The deformation control method of the composite material comprises the steps that a repairing layer material is laid on the surface of a pretreated to-be-repaired component, functional layers are sequentially laid on the outer surface of the to-be-repaired component, and the pretreated component is obtained; after an internal annular mold and the pretreatment part are assembled, a primary treatment part is obtained; sleeving the outer surface of the primary treatment part with a vacuum bag, sealing and vacuumizing to obtain a secondary treatment part; an external supporting mold is assembled outside the secondary treatment part, and a tertiary treatment part is obtained; and the third-time treatment part is subjected to high-temperature curing, and cooling and demolding are conducted after curing is completed. According to the deformation control method provided by the invention, a dual-mode cooperative shape control system is formed through the internal circumferential mold and the external supporting mold, and comprehensive improvement of repair precision, operation efficiency and application suitability is realized.

The application discloses a shaft-diameter bidirectional limiting quenching die based on phase change heat compensation, belongs to the technical field of gear part quenching heat treatment die, and is designed for the problems of thin-web wave distortion, inner hole shrinkage and end face warping of thin-web gears (especially 9310 steel materials) which are easily caused by the action of organizational stress and thermal stress in the heat treatment process. The pressure quenching die can be axially and radially limited and can compensate temperature. The pressure quenching die is composed of a multi-hole convection enhanced axial outer pressure ring, an axial limiting inner pressure ring, a multi-stage compression radial limiting multi-claw support body, an axial driving variable diameter mandrel, a lower die support seat, a lower die base and a positioning pin assembly. The thin-web gear is heated to quenching temperature and kept for a period of time, the gear is transferred from the heating furnace and sleeved into the pressure quenching die by using a special extraction aid, the press is started, the press and the die jointly act, the thin-web gear is deformed in the shaft-diameter bidirectional direction, and the thin-web gear part meeting the finishing requirement is obtained. The technical problems of controlling the heat treatment deformation of gear parts and single direction limiting are solved.