18 results about "Deformation Problem" patented technology

The present application relates to a kind of carbon fiber composite reflector mould surface new design method, belong to satellite antenna field;For the thermal deformation in the curing process of reflector, chemical shrinkage deformation and the deformation problem caused by mould, consider the thermal deformation influence of carbon fiber resin matrix composite material from rubber state to glass state whole cycle process, and according to the mould surface compensation of thermal deformation analysis result is carried out.Formation of reflector three-dimensional analysis model;The reflector is according to the rubber state and glass state of corresponding solidification process Double-state whole solidification cycle thermal deformation analysis is carried out, and three-point boundary constraint analysis method is proposed, and it is consistent with the working condition of reflector curing;In the solidification cycle of reflector, the interfacial stress of mould to reflector is extracted, and it is superimposed into reflector thermal deformation and is compensated jointly, through the thermal deformation joint compensation of reflector and mould, the mould surface design for high-precision composite material reflector manufacturing is realized, meet the need of high-precision antenna reflector to surface precision.

The utility model discloses a tool for forming a molded part with a notch, which belongs to the technical field of molded part processing and comprises an upper module, a lower module is arranged on the lower surface of the upper module, an upper bump is fixedly mounted on the inner wall of the top of the upper module, and a lower bump is fixedly mounted on the inner wall of the bottom of the lower module. The inner side faces of the upper die block and the lower die block are each provided with a notch cavity. According to the tool for forming the molded part with the notch, the elastic extrusion device is arranged, and during demolding, an extrusion spring can provide buffering force, so that the molded part is gradually separated from the notch of the tool, the problems of cracks and deformation at the notch caused by too large instant external force are solved, and the demolding yield of the molded part is greatly increased; due to the adjustability of the elastic extrusion device, the tool can adapt to production of notched molded parts with different size and shape requirements, the extrusion force can be changed by adjusting the compression degree of the extrusion spring, and machining of the molded parts with different materials and process requirements is met.

The application relates to the technical field of precision machining machine tools, and discloses a milling mechanism and method for a compound lathe, which comprises a milling execution module for milling a workpiece, a workpiece fixing module for clamping and driving the workpiece, an auxiliary supporting module, and a control module; the auxiliary supporting module is used for providing dynamic support for the workpiece during milling, and comprises a supporting assembly, a displacement driving unit, a detection unit, and a position calibration unit; the supporting assembly is used for being in contact with the surface of the workpiece; the displacement driving unit is connected with the supporting assembly and is used for driving the supporting assembly to move along the axial direction of the workpiece. According to the application, the auxiliary supporting module is arranged, the static deflection deformation problem of an elongated shaft caused by insufficient rigidity of the elongated shaft is solved, the module provides accurate radial supporting force by tracking a milling point in real time, the bending of the workpiece during machining is directly compensated, the straightness, cylindricity and other geometric tolerances of the workpiece are ensured, and the machining geometric precision is improved.

This application belongs to the field of cleaning robot technology, specifically relating to a non-deformable space installation structure using a jig. It includes a base shell and a collision drop bracket. The base shell has a movable groove for the collision drop bracket to connect and mate with. The movable groove allows the collision drop bracket to extend upwards in a first orientation and restricts its downward disengagement in a second orientation. This application achieves pressure-free assembly by designing the movable groove to only allow the collision drop bracket to extend upwards in the first orientation and restrict its downward disengagement in the second orientation. This fundamentally avoids the problem of plastic deformation caused by external force during installation, ensuring the buckle height and structural integrity. Simultaneously, this directional assembly method and the precise constraint of the movable groove allow the bracket to maintain a preset minimum movement gap within the groove for smooth forward and backward sliding, while effectively suppressing wobbling caused by excessive gaps.

The utility model discloses an aviation engine casing shell block cover's anti -deformation processing special fixture belongs to aviation engine spare and part manufacturing technical field. The fixture includes the clamping body (1), the compression screw cap (2), the support (3) and the open sleeve (4). The clamping body (1) is equipped with the hole matching with the part outer circle, adopts H7 / g6 cooperation to realize accurate positioning, the compression screw cap (2) is connected with the clamping body thread, is used for the axial compression spare, the support (3) is fixed on the clamping body top through the bolt, and its support sleeve is adopted gap cooperation with the part high outer cylinder, provides radial support, the open sleeve (4) is the split type structure, is covered in high outer cylinder and is locked through the bolt and plays the supplementary support. The fixture through multiple anti -deformation design has solved 7075 aluminum alloy thin -walled spare processing deformation problem, has guaranteed high outer cylinder upper through -hole axis relative to the base outer circle axis position degree tolerance out -of -tolerance problem, makes the part qualified rate from less than 30% to improve to 95% above.

The utility model discloses a kind of metal cabinet side panels with anti-deformation reinforcement belongs to metal cabinet side panel technical field, and its technical scheme main points include inner frame, concave frame and front frame, the front frame is located in the front side of inner frame, the concave frame is installed in the back of inner frame, the inside of the concave frame is fixedly connected with inner rib, the front side of the inner frame and the back of the front frame are all set with cooperation groove, filling capsule is clamped between two cooperation grooves, through multilayer structure design, solve the deformation and impact influence problem of existing metal cabinet side panel, it is filled with polyurethane foam by riveting structure and inner rib of inner frame and concave frame and enhances rigidity, deformation problem under long-term bearing and installation stress is responded, guarantee structure stability and aesthetic appearance;Utilize filling capsule and viscous oil between front frame and inner frame, provide elastic buffer for external collision, reduce the direct damage of impact to side panel and the influence to internal article, avoid article to dump.

The application provides a thin-wall special-shaped workpiece correcting device and a correcting method. The thin-wall special-shaped workpiece correcting device comprises a clamping plate correcting device. The clamping plate correcting device is composed of a first steel mold clamping plate and a second steel mold clamping plate. A heating correcting gap is formed between the first steel mold clamping plate and the second steel mold clamping plate. A clamping adjusting assembly is arranged between the first steel mold clamping plate and the second steel mold clamping plate. In the application, the internal stress of the thin-wall special-shaped workpiece is released through low-temperature heating, and the heating and fastening cycle mode is adopted to effectively solve the deformation problem. In addition, the correcting method in the application can make the thin-wall special-shaped workpiece reach the delivery standard, avoid post-deformation, and effectively improve the production quality.

This invention belongs to the field of lever machining technology, specifically relating to a machining method for a high-precision, weakly rigid lever assembly. The invention completes the machining of the weakly rigid lever assembly through six steps: heat treatment of the raw materials of the lever and shaft, preparation of a process table, individual machining of the lever and shaft, assembly of the lever and shaft, fine finishing of the reference surface, machining of the assembly, and removal of the process table. This invention not only significantly reduces the precision and difficulty of individual part machining and improves measurement accuracy, but also achieves economical machining precision, reducing machining costs. This invention effectively solves the deformation problem of parts during machining, ensuring stable machining quality and improving the pass rate and machining efficiency. This invention effectively solves the deformation problem of parts caused by poor rigidity or unbalanced force, meeting the requirements of geometric tolerances. This invention is applicable to the machining of other high-precision, weakly rigid assemblies and has a wide range of applications.

The invention relates to the technical field of precision machining machine tools, and discloses a milling mechanism and method for a composite lathe, and the milling mechanism comprises a milling execution module for milling a workpiece, a workpiece fixing module for clamping and driving the workpiece, an auxiliary supporting module and a control module; the auxiliary supporting module is used for providing dynamic supporting for a workpiece in the milling process and comprises a supporting assembly, a displacement driving unit, a detection unit and a position calibration unit. The supporting assembly is used for making contact with the workpiece surface. The displacement driving unit is connected with the supporting assembly and used for driving the supporting assembly to move in the axial direction of the workpiece. By arranging the auxiliary supporting module, aiming at the problem of static deflection deformation easily caused by insufficient rigidity of the slender shaft, the auxiliary supporting module directly compensates bending of a workpiece in the machining process by tracking a milling point in real time and providing accurate radial supporting force, the form and location tolerances such as straightness and cylindricity of the workpiece are ensured, and the machining precision of the slender shaft is improved. And the machining geometric accuracy is improved.

The invention provides a machining method of a high-hardness thin plate type dense hole system part, which comprises the following steps: S1, roughly machining a workpiece, reserving inner and outer circle margins and hole system margins, and releasing residual internal stress; s2, the hole system is subjected to semi-finish machining through low-speed wire cutting, the inner circle of the workpiece is trimmed and cut, all hole sites in the hole system are corrected to be within a preset precision range, and finish reaming allowance is reserved; s3, a tool is used for completely surrounding and fixing the workpiece, a reamer is used for conducting finish reaming machining on the hole system under the constant-temperature cooling condition, a recasting area and a heat affected area generated by low-speed wire cutting are removed, and the final hole diameter and position precision requirements are met; and S4, the tool is dismantled, and the high-hardness thin plate type dense-hole-series part is obtained. A combined machining mode is adopted, various deformation problems are effectively solved, a general technology for effectively controlling position precision is provided for high-hardness thin plate type dense hole series parts, and technical difficulties are overcome for enterprises.

This invention relates to the field of rolling bearing design and life assessment technology, specifically a method for calculating the life of an elliptical raceway bearing, comprising the following steps: S100, measured multi-point profile: obtaining a set of discrete points i of the measured profile of the raceway surface of the elliptical deformed raceway of the bearing to be assessed; S200, least squares fitting to an ideal ellipse: performing ellipse fitting on the discrete point set i to obtain an ideal ellipse, and determining the length of the major axis 2a and the length of the minor axis 2b of the ideal ellipse; S300, extraction of three points: extracting one endpoint A of the minor axis and two endpoints C1 and C2 of the major axis on the ideal ellipse; This transforms the complex geometric deformation problem into a change in the standard parameter of the bearing's internal clearance, thereby realizing the quantitative calculation of the life of the elliptical raceway bearing.

The application relates to the technical field of model airplane part machining, and discloses a chamfering device for nut machining of a model airplane engine, which comprises a transfer module, a groove is arranged at the bottom center position of the transfer module, placing grooves are arranged on the left and right sides in the groove, and two clamping grooves are arranged on the left side of the transfer module; a clamping mechanism comprises a plurality of limiting strips, a plurality of clamping columns are arranged in the limiting strips in a sliding mode, springs are arranged on the top ends of the clamping columns, and corresponding plates are arranged between the top ends of the springs. Through the adaptive clamping technical scheme that the clamping mechanism is in sliding cooperation with the transfer module and the clamping columns are sleeved with the springs, the technical effect that different size model airplane nuts can be stably clamped without damaging the nuts is achieved, the problems that the fixture needs to be disassembled, the tool angle needs to be adjusted and the operation is complicated during the model airplane nut replacement are solved, and the clamping deformation problem caused by the fixed fixture to the thin-wall characteristics of the model airplane nut is avoided.

The utility model provides a kind of to be suitable for ultra -thin titanium zinc plate anti -hoisting deformation clamp, it is related to hoisting clamp technical field, and it includes: at least two supporting clamping parts, each supporting clamping part includes support arm, clamping piece and movable support, the movable support is set on the support arm, multiple support arms are all rotationally connected in shaft core, to facilitate the relative position between multiple support arms, the clamping piece is set on the one end of the support arm away from the shaft core. The utility model has the beneficial effects: through the cooperation of clamp and movable support, effectively prevent the deformation problem of ultra -thin titanium zinc plate in hoisting process, ensure the integrity and installation accuracy of plate, the support arm of supporting clamping part can be rotationally connected in shaft core, it is convenient to flexibly adjust the support arm spacing according to plate size, improve the versatility and adaptability of clamp;Clamping piece uses U type frame and threaded rod structure, can firmly hold the edge of plate.

This utility model belongs to the field of mechanical manufacturing technology and relates to a rotor hole system anti-deformation machining device without correction. It includes a support base, the upper surface of which serves as the end face of the bottom of the supporting part and is fixedly installed with an angular contour pin; several elastic chucks that can deform are fixedly installed on the upper surface of the support base, the elastic chucks cooperate with the central inner hole of the part, the center of the support base is provided with an origin correction hole, and the front surface of the support base is provided with a horizontal reference correction band; this utility model can overcome the deformation problem caused by traditional clamping, provide a good cutting state for the tool during the machining process, and can accurately position the deflection angle of the rotor hole system, thereby improving machining efficiency while ensuring the accuracy requirements of the process dimensions of batch parts.

The utility model relates to the technical field of rubber mixing, in particular to an anti-deformation structure for a rubber mixing mill scraper device, which comprises a main scraper holder, a scraper device is arranged in the main scraper holder, an upper knife holder is fixedly mounted at the top end of the main scraper holder, and the scraper device comprises a plurality of groups of vertical knives distributed in the main scraper holder. Special gaskets are arranged at the tops of the vertical cutters, pressing plates are connected to the tops of the special gaskets, fixing screws are connected between the special gaskets and the pressing plates in a penetrating mode, and pull-up screws are fixedly connected between the pressing plates and the upper cutter frame. A pressing plate in the scraper device and the middle of an upper knife rest are pulled upwards through a pull-up screw to conduct deformation adjustment, the two sides are connected with a special gasket and the pressing plate through fixing screws to be fixedly supported, after the pressing plate is pulled upwards, a vertical knife can be suspended, the vertical knife is prevented from loosening through the special gasket between the pressing plate and the vertical knife, and weight is prevented from being accumulated on a main scraper rest; and the deformation problem of the main scraper frame is solved.

The utility model discloses a kind of correct tool for solving thin-walled square shell casting deformation, it is related to casting deformation correction technical field. Including roof, roof bottom four sides are evenly installed and fixed with extrusion block, bottom plate is set below roof, bottom plate top four sides are evenly provided with correction block, extrusion block is set to extrusion bevel towards inner side surface, correction block upper portion is set to contact bevel towards outer side surface. The utility model will be installed to the correction tool on press machine, then the casting body to be corrected is placed into tool, press machine is down, so that the correction block on tool extrudes casting body, so that casting body reaches predetermined size, realizes full automation correction, it is convenient to cooperate with press machine accurate control stroke, so as to accurately control extrusion amount, so that the size of casting has consistency, eliminate artificial and other influence quality unstable factor, by this tool, efficiently, accurately correct this kind of square shell casting, solve casting deformation problem.

The invention discloses a device for testing the shear-resistant mechanical property of a joint between shield tunnel segment rings, which can better provide the actual constraint on the segment, consider the synergistic shear-resistant effect and the influence of the longitudinal force of the joint of the whole ring of segment, and study the shear-resistant mechanical property of the joint between the segment rings. And a powerful means is provided for researching inter-ring deformation problems such as tunnel slab staggering. The device is suitable for carrying out inter-ring shear-resistant loading tests on whole-ring shield tunnel segments with different diameters.

The application discloses a limiting device and method in a string type titanium-based rotary body repairing process, and the limiting method idea for the deformation problem is derived from the analysis of the deformation possibly generated in the structural part repairing process, finally, the limiting device is designed, the limiting control in the string type titanium-based rotary body repairing process is carried out by adopting the limiting device, the end face warping problem is solved by adopting the first pressing block and the second pressing block, the end face flatness of the upper and lower end faces of the mounting edge is ensured, the non-complete cylindrical pin limiting clamping mode is adopted, the roundness of the non-welding part of the mounting hole to be repaired is ensured, meanwhile, the manual argon arc welding welding process of the welding part to be repaired is not affected, the rigid limiting in the repairing process of the structural part mounting edge hole crack is ensured as a whole, and the micro-deformation or no deformation of the repaired structural part can be finally ensured to meet the size requirement of the design drawing.