98 results about "Surface deformation" patented technology

The invention discloses a guideboard surface deformation detection method and system based on a dynamic video sequence. The method comprises the following steps: acquiring road video data with a timestamp and position information; a traffic sign is automatically identified from the road video data, and geometric anomaly detection is carried out; a time sequence tracking sequence is established for the guideboard, and whether continuous abnormity exists in the guideboard is determined through multi-frame analysis; if yes, performing local texture consistency and local contour geometric analysis on the guideboard to obtain a fusion analysis result; performing state evaluation on supporting equipment corresponding to the guideboard to obtain a state evaluation result of the guideboard supporting equipment; and determining the final surface deformation state and the corresponding grade of the guideboard based on the fusion analysis result and the state evaluation result of the guideboard supporting equipment. By implementing the method provided by the invention, automatic detection and quantitative analysis of the bending or deformation condition of the road sign can be realized without manual intervention, and early warning information can be output in time.

The invention provides a coal mine subsidence area earth surface deformation monitoring device, and relates to the technical field of monitoring devices.The coal mine subsidence area earth surface deformation monitoring device comprises a fixing bottom plate, a supporting structure is arranged on the fixing bottom plate, an adjusting structure is arranged on the fixing bottom plate in a sliding fit mode, a fixing structure is arranged on the adjusting structure, and a locking structure is arranged between the adjusting structure and the fixing bottom plate; a detection structure is arranged in the supporting structure, a monitoring structure is arranged on the supporting structure, the detection structure corresponds to the adjusting structure, a pushing structure is arranged between the supporting structure and the detection structure, a stabilizing structure is arranged in the detection structure, and the stabilizing structure corresponds to the pushing structure. According to the device, the adjusting structure is slidably installed on the fixing bottom plate, the fixing structure is installed on the adjusting structure, the fixing position of the fixing structure can be adjusted through the adjusting structure, and therefore the device can be well fixed to the ground according to needs, the stability of the device is guaranteed, and the position of the adjusting structure can be locked through the locking structure.

The invention discloses a steel structure machining device and method, and relates to the technical field of steel structure manufacturing, the steel structure machining device comprises two guide rails, an upper shape restraining assembly and a lower shape restraining assembly, the upper shape restraining assembly and the lower shape restraining assembly are arranged at the tops of the two guide rails correspondingly, and through the synergistic effect of the upper shape restraining assembly and the lower shape restraining assembly, the steel structure is machined. The whole-process precise regulation and control of H-shaped steel welding from dynamic deformation suppression to quality stability guarantee are achieved, and the method is different from a traditional extensive scheme of depending on a single rigid pressing roller and fixed hydraulic bag passive shape suppression and multi-device dispersed operation, so that H-shaped steel welding shape suppression operation is more precise, more stable, more efficient and more flexible, and the production efficiency is improved. The upper shape restraining assembly achieves accurate recognition and active restraining of the deformation gradient of the upper surface of the wing plate by means of the partition hydraulic bag design and the multi-sensing fusion sensing capacity of the upper shape restraining assembly, and the lower shape restraining assembly achieves the conveying function through an innovative hydraulic flexible conveying roller structure and forms rigid supporting on the lower surface of the wing plate from the bottom at the same time.

A surface deformation monitoring method and systems based on time-series InSAR (TS-InSAR) are provided. The method includes acquiring Synthetic Aperture Radar (SAR) data; performing differential interferometry; performing a robust two-tier multi-temporal InSAR method for detection of Persistent Scatterer (PS) and Distributed Scatterer (DS) candidates to acquire time series data for surface deformation monitoring; performing a variational mode decomposition (VMD) method to decompose TS-InSAR data into a plurality of components; reconstructing time series data; performing a gated recurrent unit (GRU) method; extracting trend of surface deformation; and performing continuous large-scale deformation monitoring. The InSAR-based deformation monitoring method integrates VMD and GRU, offering significant improvements in robustness and accuracy over the existing methods.

The invention discloses a mining area three-dimensional deformation monitoring method and system based on an SAR image, and relates to the technical field of mining area monitoring, and the method comprises the steps: extracting a line-of-sight deformation sequence from a time sequence deformation phase set, identifying a deformation acceleration point and a convergence inflection point in the line-of-sight deformation sequence, and segmenting a mining period based on the deformation acceleration point and the convergence inflection point, obtaining a plurality of sub-periods; differential interference is carried out on the initial SAR image and the tail SAR image of each sub-period, differential interference deformation diagrams of the sub-periods are obtained, and earth surface three-dimensional deformation estimated values corresponding to the sub-periods are deduced based on mining geological parameters of the target mining area; coupling the differential interference deformation graph and the three-dimensional deformation estimated value to obtain a three-dimensional deformation initial field; according to the method, the deformation evolution rules of the stages such as acceleration, stabilization and convergence are accurately described, the accuracy and time sequence continuity of three-dimensional deformation monitoring of the mining area are greatly improved, and the dynamic change characteristics of surface deformation in the whole mining process are completely presented.

This invention discloses a method and device for controlling surface deformation during shield tunneling construction based on digital twins, comprising: step S1, constructing an initial digital model of shield tunneling construction based on on-site shield tunneling construction data; step S2, collecting on-site shield tunneling construction parameters and ground response data caused by on-site shield tunneling construction in real time, and updating the digital model of shield tunneling construction constructed in step S1, thereby obtaining the mapping relationship between the digital model of shield tunneling construction and the shield tunneling construction parameters; step S3, based on the mapping relationship between the digital model of shield tunneling construction and the shield tunneling construction parameters, using a reinforcement learning algorithm to take the digital model of shield tunneling construction as the interaction environment for reinforcement learning, the set of construction parameters as the action space, and the reward function as the surface deformation, so as to minimize the surface deformation and determine the optimal sequence of construction parameter actions.

The application relates to a long-term deformation MT-InSAR adaptive fusion measurement method and device for a coal mining subsidence area surface, wherein the method comprises the following steps: obtaining surface deformation monitoring data by using multiple modes respectively, and performing at least one of time-space alignment, noise removal and error correction on the surface deformation monitoring data to obtain surface deformation data; the coherence index of the surface deformation data is calculated; a bimodal Gaussian function model constructed based on the deformation law of the coal mining subsidence area is used to generate a spatial adjustment coefficient; an adaptive weighting method is constructed based on the coherence index of the surface deformation data and the spatial adjustment coefficient to calculate the weight of multi-source InSAR data; and the surface deformation monitoring data is weighted and fused by using the weight of the multi-source InSAR data to obtain the final surface deformation result. Therefore, the problem that a single InSAR technology cannot comprehensively reflect the time-space evolution characteristics of long-term deformation of a wide-area coal mining subsidence area surface, resulting in insufficient monitoring accuracy, incomplete coverage, poor adaptability and the like is solved.

The utility model relates to the technical field of honeycomb structure paperboards, and discloses a high-strength honeycomb structure paperboard which comprises two pieces of surface paper and further comprises a honeycomb paper core bonded between the two pieces of surface paper, a flame-retardant layer is arranged in the surface paper, the flame-retardant layer comprises a first flame-retardant material layer and a second flame-retardant material layer, and the first flame-retardant material layer and the second flame-retardant material layer are arranged in the honeycomb paper core. A waterproof layer is arranged in the surface paper, the waterproof layer comprises a first waterproof material layer and a second waterproof material layer, and a support plate is arranged between the two pieces of surface paper by a circle. The paper tube is arranged on the periphery between the two pieces of surface paper, the paper tube is of a corrugated design, the corrugated structure is elastically folded when stressed and is similar to accordion compression, shear force is converted into deformation energy, impact energy is absorbed, the shear resistance is improved, the impact resistance between the two pieces of surface paper can be improved through cooperation of the supporting plate and the inclined plate, and the service life of the paper tube is prolonged. And by matching with the reinforcing paper board, the support plate can form an I shape, the deformation of the surface layer is inhibited, and the flexural modulus of the bend is improved.

This invention relates to the field of surface subsidence and deformation technology, and particularly to a method for predicting abnormal surface deformation responses under the coupling of faults and loose layers. This method solves the technical problem of accurately assessing the surface subsidence and deformation patterns caused by coal mining under different geological conditions in existing technologies. The technical solution includes: establishing a three-dimensional numerical model using a Mohr-Coulomb constitutive model and setting the fault zone thickness; establishing eight sets of control experimental models and using the controlled variable method to study the effects of fault dip angle and loose layer thickness; performing simulation calculations by excavating the working face in 13 steps, with each step having a spacing of 30m; and effectively revealing the characteristics of how increasing fault dip angle promotes an increase in the maximum surface subsidence value, and how increasing loose layer thickness leads to an increase in the subsidence value followed by stabilization. This method can effectively assess the abnormal response patterns of surface subsidence and deformation under complex geological conditions.

This invention relates to the field of data processing technology and discloses a method, apparatus, and equipment for monitoring surface deformation based on parameter search interval optimization. The method, based on the location information of multiple buildings in a geographic coordinate system and multiple SAR images, determines at least one building-related region and at least one non-building region within a target area. It then determines a first residual elevation search interval for the building-related region based on the roof elevation value of at least one target building within the building-related region; determines a second residual elevation search interval for the non-building region; and performs temporal InSAR phase calculation based on the first residual elevation search interval, the second residual elevation search interval, a preset deformation rate search interval, and multiple SAR images to obtain the surface deformation rate field and residual elevation field of the target area. This significantly improves data processing efficiency while ensuring the accuracy of the temporal InSAR phase calculation and obtaining accurate surface deformation rate and elevation fields.

The application discloses a three-dimensional blade parameterization optimization method and device and a readable storage medium, relates to the technical field of centrifugal compressor impeller design, and comprises the following steps: obtaining initial geometric data of a centrifugal compressor blade, and decomposing the initial geometric data into discrete point data of a rim, a hub, a pressure surface and a suction surface; establishing a direct modeling deformation external control body, and constructing a mapping relationship between geometric point sets of the blade and control points of the external control body; setting blade surface control points and fixed constraint points, forming blade parameterization design variables and zero displacement constraints; inversely solving an external control body control point increment according to the displacement of the blade surface control points, and driving blade surface deformation; taking a target pressure ratio and mass flow as constraints, taking an isentropic efficiency or a comprehensive target function as an index, and adopting a Kriging proxy model differential evolution algorithm to optimize the blade, so that the optimized blade is obtained. The application can realize rapid fairing deformation and aerodynamic performance optimization of a three-dimensional blade under the condition of keeping original data structure.

The application discloses a kind of tubular plastic surface deformation detection device and its detection method, it is related to deformation detection technical field.The device includes detection table, rotating device, ranging sensor and PLC controller;Servo motor of rotating device drives roll to drive tubular plastic rotation, ranging sensor gathers pipe material whole circumference surface distance data and is fed back to PLC controller, and PLC compares data to determine the maximum deformation, then control servo motor to adjust the maximum deformation to preset angle, avoid gold stamping area.This device realizes the accurate quantitative detection of tubular plastic deformation, automatically positions and avoids deformation defects, improves gold stamping yield, adapts to various specifications pipe material, can be connected to automatic production line, reduce production cost and manual intervention, solve the gold stamping quality problem caused by the deformation of tubular plastic itself.

The invention relates to the technical field of curved surface deformation design, and discloses a parameterized channel curved surface deformation method and device based on radial basis function interpolation, and the method comprises the steps: creating an initial structure model of a target blade curved surface, and determining an initial channel curved surface; arranging a plurality of control points on the initial channel curved surface according to a preset point scattering rule, and interpolating by using a radial basis function to obtain a parameterized channel curved surface; on the basis of parameterized channel curved surface computational fluid mechanics, iterative optimization is carried out on the displacement of each control point by taking a computational fluid mechanics result as an optimization target, and the optimal displacement of each control point is obtained; and according to the optimal displacement of each control point, calculating the optimal displacement of each deformation point by using a radial basis function interpolation so as to carry out deformation. The displacement relation between each deformation point and each control point is determined by using radial basis function interpolation, the curved surface parameters are quantified, far and near curved surface deformation can be controlled according to different degrees of displacement of different control points, the deformation precision is improved, and the deformation reaches the optimal performance point.

A machine (M) for the production of tubular articles (A), particularly for the food or tobacco industries, comprising first feeding means (100) for at least one first web (N1) and second feeding means (200) for at least one second continuous web (N2). The machine (M) includes an embossing station (300) designed to impart a permanent surface deformation on at least one side of the first continuous web (N1) in accordance with a predetermined embossing pattern. Downstream of the embossing station (300), the machine (M) includes a demolding station (400) designed to demold the first web (N1) in accordance with a preferably non-circular predetermined three-dimensional shape.The machine (M) includes a winding station (500) in which the second web (N2) is wound in a tubular shape around the first embossed web (N1), and a cutting station (600) to divide the continuous tube profile (T) into tubular articles of predetermined length.

The embodiment of the utility model aims at providing a door opening closing-up structure which comprises a corner bead and an external corner installed on a door opening. The leveling layer is laid on the inner surface of the door opening so as to flatten the inner surface of the door opening; the deformation connecting layer is arranged on the leveling layer, the door frame is connected to the deformation connecting layer, and the deformation connecting layer deforms correspondingly under extrusion of the door frame and the leveling layer, so that the door frame is stably installed in the door opening; in the application, the arranged deformation connecting layer can present adaptive deformation at different positions according to the shape of the gap between the door frame and the door opening, so that each gap between the door opening and the door frame can be fully filled, and the door frame can be stably fixed in the door opening.

The invention relates to a clamp-on pressure measuring device (1) for detecting the pressure in a pipeline (2), the pressure measuring device being constructed in layers consisting of a contact pressure part (10), a decoupling element (11), at least one strain gauge (12), a coupling element (13), an evaluation unit, and a clamping device (14). The decoupling element (11) is suitable for transferring the contact pressure generated by the clamping device (14) in the radial direction to the at least one strain gauge (12) and thus ensuring a force-fitting and / or form-fitting connection between the at least one strain gauge (12), the coupling element (13), and the pipeline surface (2a) while allowing a freedom of movement in the longitudinal and circumferential direction of the pipeline (2), and the coupling element (13) is suitable for transferring a pipeline surface (2a) deformation, resulting from the pressure in the interior of the pipeline (2), to the at least one strain gauge (12).

The invention discloses an assembly method for controlling deformation in the assembly process of a slender composite material product, belongs to the technical field of composite material assembly, and solves the problem that micro deformation of the composite material product is difficult to eliminate in the prior art. Comprising the following steps that a bottom skin is assembled at the bottom of a framework assembly of the composite product, and chemical vapor deposition is conducted; backing plates are arranged at the two ends of the framework assembly; the top skin is assembled on the top of the framework assembly; pressure is applied to a top skin on the top of the framework assembly through a pressing plate; the top skin and the framework assembly are riveted and fixed, and the pressing plate is detached after fixing, so that the framework assembly is restored to a free state; and performing vapor deposition on the assembly. According to the method, shape correction can be conducted on the framework assembly in the normal assembling process, the shape correction effect can be achieved by adding the step of reversely padding the base plate, then profile deformation is eliminated, and high-precision assembling is achieved; according to the process, the CVI deposition furnace number does not need to be increased, the production cost is reduced, and the production period is shortened.

The utility model discloses a clamp for detecting the surface deformation quantity of a 2.5 D cover plate. The clamp comprises a support and a photographing device. The support comprises a workbench, a supporting plate and two fixing plates, the two fixing plates are arranged on the two sides of the workbench respectively, and the two fixing plates are oppositely arranged. The two ends of the supporting plate are arranged on the two fixing plates, so that the supporting plate can be suspended above the workbench. A through hole is formed in the supporting plate in the thickness direction. A gap is formed between the supporting plate and the workbench and used for containing the cover plate, and a certain height is reserved for photographing of the photographing device. The photographing device is arranged on the supporting plate, the photographing end of the photographing device faces the workbench through the through hole, and then the photographing device can photograph the cover plate of the workbench. Compared with manual handheld shooting, the shooting device is fixed on the support, stability and jitter are little, and test data are more accurate.

The application discloses a dam surface form monitoring method based on optical remote sensing images and belongs to the technical field of image processing. The method comprises the following steps: firstly, performing corrosion and inflation operation on the remote sensing images to obtain external and internal texture enhancement images; then, processing the two types of texture enhancement images to obtain corresponding texture contrast images; marking the texture points in the texture contrast images, calculating and obtaining the texture density and the neighborhood texture energy; obtaining the texture change coefficient according to the differences of the two periods of texture contrast images in the texture density and the neighborhood texture energy, and then constructing the external and internal texture change images; performing smoothing processing on the two types of texture contrast images to obtain the large-scale contribution degree and the corresponding distribution images; constructing a double-channel multi-input neural network, taking the texture change images and the large-scale contribution degree distribution images as inputs, and outputting the dam surface deformation recognition result. The application effectively improves the precision of dam surface form monitoring.

The invention relates to the technical field of track plate laying and transportation, in particular to a device for grabbing multiple track plates simultaneously, which comprises a main connecting frame, a clamping jaw assembly, a deformation bearing assembly and a linkage pressurizing assembly. The clamping jaw assembly is arranged on the main connecting frame in a sliding mode, a deformation bearing assembly is arranged on a bearing plate of the clamping jaw assembly, and the deformation bearing assembly comprises a closed cavity defined by an elastic metal plate and a rubber plate. When the convex-bottom track plate is grabbed, the deformation bearing assembly is subjected to adaptive concave deformation, a hydraulic system in the linkage pressurization assembly is driven to act, and then the side plate is pushed to extrude inwards and inject oil into the hardened pad. Lateral pressurization is triggered through bottom surface deformation, bottom lifting force is converted into lateral friction force, the hardened pad is evenly attached to the side wall through the hydrostatic pressure principle, flexible contact and stable grabbing of the curved-surface track plate are achieved, and the risk that the bottom and the side wall of the track plate are broken due to stress concentration is effectively reduced.

The utility model discloses a sapphire crystal bar end face flat grinding clamping device belongs to crystal bar polishing technical field, and the clamping cylinder in the bottom of the material taking disc is equipped with the clamping mechanism of the circumferential distribution, and the clamping plate is connected with the connecting piece through the connecting rod, realizes the synchronous clamping and release crystal bar of multiple clamping plates, and the rubber material of clamping plate inboard can increase friction according to the surface deformation of crystal bar. Meanwhile, the suction cup in the groove in the clamping cylinder can move up and down under the driving of the oil cylinder, and the suction force is generated by using the cooperation of the air extraction pipe and the external air extraction device, which assists the clamping plate to fix the crystal bar. The feeding line, the discharging line and the material taking disc cooperate, realizing the automatic feeding and discharging of the crystal bar. The clamping device stably clamps, guarantees the synchronous action of multiple clamping plates, makes the crystal bar uniform stress, the auxiliary fixing function enhances the fixing effect to the special crystal bar, and improves the processing stability.

The utility model discloses a kind of ejector pin batch cutting and grinding's anchor clamps, belong to ejector pin anchor clamp technical field, the utility model includes support plate, front clamping part and rear clamping part, support plate side two sides edge symmetry installation along vertical direction sliding limit guide rod;Rear clamping part includes cross bar and two U-shaped clamps, and front clamping part includes I-shaped bar and two cross clamps.The utility model anchor clamp transverse placement, cutting cutter disc realizes batch cutting, improves cutting efficiency;When anchor clamp vertical placement, batch grinding, grinding efficiency is high;In addition, fixed ejector pin in row, for cutting cutter disc transverse reciprocating cutting, provide cutting basis, indirectly realize the benefit that ejector pin cutting end surface deformation is lower, reduce grinding time, indirectly improve grinding efficiency.

The application relates to the technical field of defect detection, and provides a super-precision spring defect detection method and system, which comprises the following steps: obtaining surface deformation information of a to-be-detected super-precision diaphragm spring; extracting current defect feature data from the surface deformation information; storing the current defect feature data into a defect feature cache area; comparing the current defect feature data with historical defect feature data stored in the defect feature cache area to determine whether the current defect feature data has spatial and temporal constancy, and obtaining a spatial and temporal constancy judgment result; according to the spatial and temporal constancy judgment result, marking a defect type corresponding to the current defect as a system artifact or a real product defect; generating a detection report, and displaying the defect type mark based on preset display rules for distinguishing the system artifact and the real product defect. The application has the advantages of distinguishing the system artifact and the real product defect, improving the accuracy and efficiency of detection, and reducing unnecessary production interruption and verification cost.

This invention provides a numerical simulation method for surface deformation evolution based on near-field dynamics, comprising: discretizing the geological body model and virtual boundary layer to be calculated into multiple material points to obtain an initial geological body model; obtaining the neighborhood of each material point in the initial geological body model; obtaining the internal force experienced by the material point at the current time step based on the pore water pressure change at the current time step, as the stress on the material point at the current time step; obtaining the displacement of the material point at the current time step using an adaptive dynamic relaxation method based on the stress on the material point at the current time step; obtaining the stress on the material point at the current time step based on the displacement on the material point at the current time step; and determining the fracture status of the virtual bond using the Mohr-Coulomb failure criterion based on the stress on the material point at the current time step, thereby obtaining the local damage value of the material point at the current time step. This invention also provides another scheme capable of revealing the physical mechanism of ground subsidence disasters transforming into ground fissures.

The invention relates to the technical field of material nondestructive testing, and discloses a deformation non-uniformity detection method for an oversize high-strength steel material. A detection point array is constructed on the surface of the super-huge high-strength steel member, interference measurement is performed on all detection points in an unloaded state and a loaded state respectively, two groups of interference intensities are obtained, and significant deformation points are marked by differential combination with a jump threshold value; the method comprises the following steps: normalizing interference intensity, extracting a phase difference, carrying out global phase unwrapping, converting the phase difference into a component surface normal displacement data set according to an interference displacement relationship, calculating a displacement difference of adjacent points according to dot matrix geometry to obtain a local displacement gradient, calculating an average value and a standard deviation of the gradient to form a global non-uniformity index, and setting a self-adaptive threshold value; and the gradient of each point is compared to identify non-uniform deformation risk points and output a detection result, so that surface deformation information is uniformly collected, real deformation and noise are distinguished, interference is reduced, and a risk area is identified in a component range.

The invention relates to the technical field of metal processing, in particular to a fan-shaped supporting piece manufacturing process which comprises the following steps that firstly, casting raw materials are smelted and injected to be filled into a forming mold; 2, after solidification forming, a casting is cleaned; step 3, annealing and heating; fourthly, residual stress in the fan-shaped blank is released through vibration aging equipment; 5, the fan-shaped blank piece is put into a shaping mold, pressure is applied to the shaping mold, and then the pressure borne by the shaping mold is unloaded stage by stage; and sixthly, the fan-shaped blank is machined to the size of a finished product. According to the manufacturing process of the fan-shaped supporting piece, a vibration time-effect method is adopted in advance to eliminate residual stress of the fan-shaped supporting piece, then pressure is applied to the fan-shaped supporting piece through the mold cavity, residual micro stress in the fan-shaped supporting piece is promoted to be evenly differentiated and relaxed, it is ensured that the size of the fan-shaped supporting piece is stable, and the precision of the fan-shaped supporting piece is improved; the problems of surface deformation and out-of-tolerance parallelism of the fan-shaped supporting piece are solved.

The invention provides a method for analyzing the influence of surface deformation caused by a carbon sequestration project on a shaft, and relates to the technical field of carbon sequestration, and the method comprises the steps: obtaining geological parameters of a sequestration region of the carbon sequestration project, and obtaining structure parameters of a shaft to be analyzed in the sequestration region; constructing a three-dimensional finite element model corresponding to the shaft through finite element analysis software based on the geological parameters and the structural parameters; acquiring earth surface deformation parameters of the sealing region from carbon dioxide sealing, and simulating in the three-dimensional finite element model according to the earth surface deformation parameters to obtain stress and strain distribution of the shaft under the action of earth surface deformation; and determining an influence analysis result of surface deformation caused by the carbon sequestration project on the shaft according to the stress and strain distribution. According to the method, the geological parameters of the storage area and the structural parameters of the shaft are comprehensively obtained, and the stress and strain response of the shaft under the geological change effect can be accurately simulated in combination with construction of the finite element analysis model.

The present application relates to a kind of thin-walled cabin section class parts accurate positioning method, belong to part processing technical field, solve the problem that in prior art, for the part of large shape surface deformation and without machining allowance, cannot ensure the accuracy of processing reference point.The method includes: based on the plane ABC, plane DEP and plane FGQ constructed on the three-dimensional model of part, construct three-dimensional coordinate system XYZ for part processing, and find the part alignment;Plane DEP and plane FGQ are handled, and new plane D' E' P' and plane F' G' Q' are constructed;With the intersection of plane ABC, plane D' E' P' and plane F' G' Q' as zero point U, and based on the normal vector a, b, c of plane ABC, plane DEP and plane FGQ, new three-dimensional coordinate system X' Y' Z' is constructed;Wherein, with three-dimensional coordinate system X' Y' Z' as three-dimensional coordinate system for part processing.Accomplished in the case where the shape of part is deformed relatively large, can be more accurate to the part positioning.

The utility model discloses a tunnel wall surface deformation detection device, which comprises a plurality of fixed rods and a plurality of groups of telescopic rod assemblies, the fixed rods are fixedly arranged on the tunnel wall surface at intervals along the circumferential direction of a tunnel, the axes of the fixed rods are positioned on the same vertical section, and the telescopic rod assemblies are arranged in the same vertical section. Each telescopic rod assembly is arranged between two adjacent fixed rods and comprises a movable rod and a rod sleeve, a first through groove is formed in the side wall of the rod sleeve, scale marks are arranged outside the rod sleeve, one end of the movable rod is inserted into one end of the rod sleeve in a sliding mode, a pointer is arranged on the side wall of one end of the movable rod, and the pointer is arranged in the first through groove in a sliding mode. The other ends of the movable rods and the other ends of the rod sleeves are rotationally connected with the ends, extending out of the tunnel wall face, of the adjacent fixed rods correspondingly. Through the arrangement, the detection efficiency is improved, and the danger of detection personnel during detection is reduced.