118 results about "Surface fitting" patented technology

The invention belongs to the technical field of control detection, and particularly relates to a laser cutting machine cutting control method and system.The laser cutting machine cutting control method comprises the following steps that S1, frequency sweeping excitation is applied to a plurality of preset grid node positions of a laser cutting machine workbench, and vibration response data of a cutting head is collected; a dominant pole and a zero point of a vibration transfer function of each grid node are identified and extracted, spatial distribution is fitted by using a non-uniform rational B-spline surface, and a spatial model of continuous mapping between a cutting head position and a vibration transfer function parameter is established; s2, decomposing a to-be-processed path into a plurality of path infinitesimal segments, and calculating a preliminary feed-forward compensation instruction of each path infinitesimal segment based on a space model and a zero-phase error tracking control algorithm; according to the invention, the contour error caused by structural vibration and non-linear factors is reduced, the processing precision and the cutting surface quality of the laser cutting machine in a full working range are improved, and the forming effect of a complex contour at a high speed is improved.

The application discloses a curved surface structure zero state form finding method, comprising the following steps: (1) a model is established based on a design configuration, and deformation data is obtained by simulating the whole construction process; (2) a zero state configuration is deduced reversely: key node deformation values are extracted, arches are started, a simulation is re-performed after a linear model is fitted and adjusted, and iteration correction is performed until deformation error meets the requirement, and a zero state installation configuration is obtained; and (3) construction data is generated by extracting component line shapes and node coordinates. The application innovatively adopts an integral curvature adjustment strategy to replace a traditional node coordinate local adjustment mode, and through reverse deduction of 'construction simulation-control point arching-curved surface fitting-grid mapping', the problem of curved surface discontinuity caused by the traditional reverse superposition method is solved, construction precision and efficiency are significantly improved, and the application is suitable for intelligent construction of complex curved surface space grid structures.

The invention relates to the technical field of vision, in particular to an industrial intelligent spraying tracing method, which comprises the following steps of: firstly, acquiring an original depth map of a curved surface workpiece by utilizing a depth camera, and obtaining original data containing depth information; next, edge feature enhancement preprocessing is carried out on the original depth image, edge pixels are accurately extracted through morphological gradient operation and a user-defined anisotropic diamond kernel, and an edge mask image is constructed; then, curvature region division and self-adaptive interpolation restoration are carried out, quadratic polynomial curved surface fitting is carried out on a hole pixel neighborhood, a local curvature value is calculated, a curved surface region is divided according to the curvature value, and corresponding interpolation strategies are adopted for different regions; afterwards, edge detail sharpening post-processing is carried out on the repaired depth image, and the edge contrast is enhanced by using a non-sharpening mask algorithm; and the repaired and sharpened depth map is converted into a three-dimensional point cloud, workpiece pose information is determined based on three-dimensional point cloud data, and spraying track planning is carried out.

The invention discloses a precise positioning control method and system for photovoltaic module laminating welding, particularly relates to the technical field of welding positioning, and is used for solving the problem of systematic alignment deviation caused by independent control of welding and laminating procedures, lack of unified reference and physical deformation of battery strings in the prior art. A battery string image is obtained after welding, a morphological feature point set is extracted, the morphological feature point set is registered with a theoretical feature point set to calculate a current deformation field, then local curved surface fitting residual and equivalent strain energy density collaborative analysis identification is carried out, a pseudo deformation area is filtered out, and a credible physical deformation field is obtained. And generating importance weight distribution by combining functional information of a battery string region, performing compensation reconstruction on theoretical positioning coordinates of a film coating material by taking the weight as a target, generating a target fitting track under a film coating process reference coordinate system, and finally controlling an execution mechanism to operate according to the track, thereby realizing high-precision alignment fitting of the battery string and the film coating material.

The invention relates to the technical field of AR (Augmented Reality), in particular to an intelligent exhibition hall guide information method and system based on the AR technology, and the method comprises the following steps: traversing a scene graph of a 3D model based on a user triggering instruction and the 3D model of an exhibit, recognizing a grid object without child nodes as an independent part, and storing the independent part in the scene graph; reading the axial constraint and the surface fitting constraint associated with each part, and reversing the direction vector of the axial constraint; according to the method, the initial disassembly vector of each part is reversely calculated based on the internal axial and surface fitting constraints of the exhibit 3D model, and a dynamic decomposition view conforming to the mechanical logic and the assembly sequence is provided. Furthermore, in an iterative solution loop, the overlapping volume of a part bounding box is detected in real time, a repulsive force is applied, and a traction force is generated by introducing a virtual plane parallel to a user viewpoint, so that a layout in which all parts are clearly visible and do not shield each other can be dynamically generated.

Embodiments of the present disclosure relate to ground surface estimation using localized surface fitting. A three-dimensional (3D) surface structure (e.g., a road surface profile) may be estimated using a nonlinear optimization to fit height values to (e.g., accumulated, bias-corrected) LiDAR detections (e.g., sampled in localized regions along one or more predicted trajectories). For example, LiDAR data (e.g., detected 3D point clouds) may be ego-motion compensated, corrected for measurement bias, accumulated, and sampled along one or more predicted trajectories, and the height of each trajectory point may be fitted to the heights of the corresponding sampled points using a nonlinear optimization. As such, the resulting road surface profile (e.g., modeled along the wheel track(s)) may be provided to an adaptive suspension control system to modulate the damping characteristic of the suspension system to counteract indentations (e.g., potholes) or protrusions (e.g., speed bumps) represented in the road surface profile.

The invention provides a curved surface engraving control method based on a laser engraving machine, which comprises the following steps of: in a to-be-processed area of a to-be-processed curved surface object, acquiring discrete point data by taking intersection points of plane rectangular grids in a plane coordinate system as acquisition points; performing parameterization calculation on discrete point data of each group of intersection points in the horizontal axis direction in the plane coordinate system to obtain a first virtual data sequence, and performing parameterization calculation on each group of discrete point data in the longitudinal axis direction in the plane coordinate system to obtain a second virtual data sequence; based on the first virtual data sequence and the second virtual data sequence, determining a curved surface fitting model of the to-be-processed area; a preset carving image is obtained, and a three-dimensional carving track is determined according to the preset carving image and the curved surface fitting model; and controlling a laser of the laser engraving machine to engrave in the to-be-processed area according to the three-dimensional engraving track so as to form a preset engraving image in the to-be-processed area. According to the invention, the irregular curved surface object can be automatically engraved.

The application belongs to the field of intelligent manufacturing, and particularly relates to a machine tool RTCP precision interpolation method based on three-dimensional curved surface fitting, which comprises the following steps: determining a main motion shaft of a machine tool according to a machine tool topological structure and RTCP functions, setting a motion interval of the main motion shaft, and forming a linkage RTCP detection position combination; obtaining three-direction error values under each linkage RTCP detection position combination; adopting a local weighted regression scattered point smoothing algorithm to fit three-dimensional data, so as to obtain three groups of regression models corresponding to three-direction errors; resetting a plurality of linkage motion position combinations as RTCP precision verification points, and performing verification; if a specified threshold is exceeded, a smoothing coefficient of the step is modified; and if the threshold is within a range, fitting is ended and is used for RTCP precision interpolation and compensation. The application proposes three-dimensional curved surface fitting based on a local weighted regression scattered point smoothing algorithm, combines RTCP error three-direction values and detection positions, and respectively makes three-dimensional graphics for fitting prediction, so that the method is novel and has high fitting interpolation accuracy.

The invention relates to the technical field of optical precision machining, in particular to a curvature self-adaptive curved surface fitting method and system in optical element polishing, and the method comprises the steps: obtaining a material height difference removal matrix based on interference measurement data before and after polishing of an optical element; traversing the height difference matrix by using a sliding window mode, calculating a Hessian matrix eigenvalue in a local area, forming a curvature sensitivity index (CSI), dividing an optical surface area into a plane area, a gradual change area and a high curvature area, and setting curved surface fitting parameters in the areas respectively; performing curved surface fitting on the region by adopting a weighted least square method to obtain a continuous surface model, and performing adaptive numerical integration calculation on the continuous surface to obtain a material removal volume; according to the method, the process control requirement of high-precision optical manufacturing can be met, the calculation precision is high, the calculation precision and the calculation efficiency can be maximized, the global efficiency is high, the capability of capturing local features can be achieved, the method can be integrated into an existing quality control system, and process decision making is facilitated.

The invention discloses a face gear on-machine measurement comprehensive error compensation method based on sequential decoupling. Specifically, a sequential decoupling compensation strategy is provided for solving the problem that the measurement precision is limited due to mutual coupling of a measuring head pre-stroke error and a workpiece installation coordinate system error in the prior art. The method comprises the following steps: firstly, establishing a measuring head pre-stroke error model through standard ball calibration, and performing anisotropic compensation on a tooth surface measuring point by utilizing Delou inner triangulation and a weighted interpolation method; secondly, based on the compensated data, the outer cylindrical surface and the tooth top plane of the face gear are accurately fitted through an iterative optimization algorithm, an accurate measurement coordinate system is established, and the initial phase of the C axis is optimized; and finally, reconstructing an actual tooth surface by adopting a two-stage NURBS curved surface fitting method, and calculating a normal deviation. According to the method, an error propagation chain is effectively cut off through a strict execution sequence, the overall precision and reliability of on-machine measurement are remarkably improved, and a key technical support is provided for face gear closed-loop manufacturing.

The embodiment of the invention provides a quadric surface fitting method, a model training method, a model reasoning method and equipment, and relates to the technical field of computer vision, and the quadric surface fitting method comprises the steps: determining a local PCA coordinate system corresponding to a local curved surface where a target point is located through a PCA method; and then, converting a Mongolian equation corresponding to a local curved surface where the target point is located into a local PCA coordinate system to obtain an implicit curved surface equation. Then, solving the implicit curved surface equation according to the position information of the target point cloud block in the local PCA coordinate system, and obtaining the value of an item to be solved; and finally, according to the value of the item to be solved, obtaining a differential characteristic parameter of the local curved surface. According to the technical scheme, the quadric surface fitting precision can be improved, and more accurate differential characteristic parameters can be obtained.

The present application relates to a method for extracting an acetabular facies lunata model, in particular to a method for extracting an acetabular facies lunata model based on mixed surface fitting, which solves the technical problem of low precision and robustness of the existing method for extracting an acetabular facies lunata model. The present application realizes rough extraction of the acetabular facies lunata model through spherical surface fitting, and then realizes accurate extraction of the acetabular facies lunata model in combination with ellipsoidal surface fitting, which combines the stability of spherical surface fitting and the anatomical fidelity of ellipsoidal surface fitting. In particular, in the case of complex pathologies such as hip dysplasia, the present application can still maintain high extraction accuracy, and improve the accuracy and reliability of clinical diagnosis and surgical planning. Meanwhile, in the iteration process of ellipsoidal surface fitting, an adaptive fault tolerance threshold is introduced, which effectively solves the problems of sensitivity to noise and strong parameter dependence of traditional methods, and has better robustness in processing complex acetabular morphology.

1. The name of the design product: cold chain insulation box (curved surface fitting). 2. The use of the design product: for the cold chain transportation of goods. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The application discloses a cambered surface fitting type laser cutting process and device for a wave-shaped metal hyperbolic plate, and the process comprises the following steps: S1, hyperbolic plate parameter acquisition; S2, arc segment segmentation processing; S3, determination of the center coordinates of each segment; S4, initial position adjustment of a laser cutting head; S5, concave arc segment cutting execution; S6, convex arc segment cutting execution; S7, width cycle cutting and path switching. Irregular and difficult-to-control overall wave surfaces of the hyperbolic plate are converted into a plurality of regular and easy-to-position arc units, namely upper arc segments and lower arc segments, and corresponding cutting modes are adopted for the upper arc segments and the lower arc segments, the concave arc segments are rotated around the laser cutting head as the center, the convex arc segments are rotated around the center of the arc segment as the center, the precise adaptation of the cutting posture is realized, the rotation center is flexibly adjusted according to different arc shapes, the laser emission direction or the cutting head feeding track is always fitted to the curved surface, and machining defects such as thermal deformation and burrs are effectively reduced.

We provide a laser ablation system equipped with a robot and processing circuitry. [Solution] The robot has an end effector having a laser component and a camera. The circuit receives an input image of a workpiece from the camera in response to a memory command, segments the image to generate image segments that depict the workpiece, applies a surface fitting algorithm to generate a polynomial surface that fits the inner surface of the segments, calculates a set of surface normal vectors crossing the surface to generate a set of waypoints offset from the polynomial surface, programs a motion path connecting the multiple waypoints, and performs operations including laser ablation of the workpiece surface based on the motion path.

The invention belongs to the technical field of polishing devices, and particularly relates to a projectile body packaging barrel inner wall polishing device which comprises a polishing head assembly, an airflow pressure sensing assembly, a differential motion spiral compensation mechanism, a power unit and a position presetting module. The airflow pressure sensing assembly is used for detecting an original airflow pressure signal corresponding to the polishing gap; the position presetting module is used for recognizing the type of a barrel section where the grinding head is located. The device is further provided with a curved surface airflow correction module and a real-time gap calibration sensing unit. According to the invention, the curved surface airflow correction module is arranged, corresponding coefficients are called according to a barrel section to correct airflow signals, and gap interference caused by curved surface fitting is accurately filtered out; the real-time gap calibration sensing unit is combined to detect the actual gap in real time, a calibration instruction is generated, and the core problems of detection distortion and error accumulation in existing curved surface polishing are solved.

The invention relates to the technical field of image processing, in particular to an auxiliary material curved surface fitting deviation monitoring method based on an image processing technology, and the method comprises the steps: S1, building a compensation relation function between vibration frequency and image fuzziness; s2, collecting an image of a product before mounting, eliminating vibration blur, extracting outer contour shape and curved surface form data, and calculating a theoretical projection area reference value; s3, collecting a vacuum adsorption auxiliary material image and extracting an outer contour; s4, comparing outer contour data of the product and the auxiliary material, correcting a displacement difference and an angle deviation, and then performing vacuum lamination; and S5, acquiring an image after fitting, extracting a composite outer contour, an actual projection area and an auxiliary material edge mechanical stripe density gradient, and judging that the image is qualified when the three conform to judgment conditions. Through the technical framework of vibration compensation-curved surface three-dimensional reconstruction-multi-dimensional cooperative judgment, the positioning precision of curved surface accessory fitting is improved, the detection efficiency is improved, and meanwhile, the mechanical failure risk such as reworking caused by bubbles and wrinkles is reduced.

The invention discloses a photoelastic experimental device with a self-adaptive attached loading contact surface, which comprises a cabinet, and also comprises: a test unit, which comprises a bearing frame installed at the upper end of the cabinet, and a sample container installed in the bearing frame and used for bearing a sample; the loading unit comprises a vertical loading assembly which is arranged at the upper part of the bearing frame and is used for carrying out a vertical extrusion test on the sample in the sample container, and a horizontal loading assembly which is arranged on one side of the bearing frame and is used for carrying out horizontal extrusion on the sample in the sample container; and the vertical loading assembly comprises a pressing compensation mechanism used for pressing the sample in the concave area. The pressing compensation mechanism is rotated, and the pressing compensation mechanism fills the concave area, so that the vertical loading assembly can perform extrusion test with the concave area of the photoelastic particles, the photoelastic particles are ensured to be uniformly pressed, and the experiment accuracy is improved.

The present application provides a kind of image vignetting correction method, image processing device and application, this method is under the condition of predetermined photographing environment, using camera to shoot template image under the condition of welding and carry out gray value sampling, surface fitting, with the maximum value of fitting surface equation divided by the surface fitting value of template image, and the result is normalized to obtain normalized dark corner compensation model, based on the normalized dark corner compensation model, the image to be corrected that camera shoots under the condition of predetermined photographing environment is corrected.The present application can quickly find the dark corner compensation model based on template image using simple surface fitting method, correct the image to be corrected, improve image quality, without obtaining complex geometric parameters of optical system in advance, has wide adaptability.The image processing device of the present application can be applied to droplet digital PCR system to improve the accuracy of PCR detection results, and can also be applied to single cell sorting system to facilitate the identification and positioning of nozzle, improve the efficiency of single cell sorting.

The utility model relates to the technical field of supporting structures, and discloses a display screen curved surface fitting supporting structure which comprises a fixing cylinder, a clamping mechanism is installed on the lower middle portion of the outer wall of the fixing cylinder and used for clamping a display screen at the needed position, an adjusting mechanism is installed in the fixing cylinder, and the adjusting mechanism is used for adjusting the display screen. The adjusting mechanism is used for adjusting the position of the display as required; the clamping mechanism comprises a fixing ring, the fixing ring is installed on the lower middle portion of the outer wall of the fixing cylinder, high-carbon springs are fixedly connected to the left side and the right side of the bottom of the outer wall of the fixing ring, and the lower middle portions of the high-carbon springs are slidably connected with moving rings. According to the display screen fixing clamp, after the second adjusting plate is loosened, the high-carbon spring releases the elastic force, so that the movable ring drives the clamping plate to extrude downwards, the display screen is stabilized, the defect that a traditional bolt fixing clamp can move only after being completely loosened is overcome, and the problems that screws are loosened and the fixing strength is reduced due to repeated installation are solved.

The invention provides a bevel gear modeling and deviation measuring method and device based on concentric circle laser, and the method comprises the steps: constructing a concentric circle laser three-dimensional model according to laser contour data of a bevel gear tooth surface, and obtaining a three-dimensional point cloud data set of laser contour points; determining a tooth surface point data set of a corresponding laser layer by performing hierarchical analysis on the radial distance from each point in the three-dimensional point cloud data set to the central axis of the bevel gear; performing curved surface fitting on the point data of each laser layer according to the tooth surface point data set to obtain space curved surface models of the laser layers, and combining the space curved surface models of all the laser layers to generate a bevel gear three-dimensional model; the tooth surface geometric deviation of the bevel gear is measured by extracting tooth surface related characteristic data from the bevel gear three-dimensional model; and determining the precision grade of the bevel gear according to a preset gear precision evaluation criterion. According to the scheme, the problems of incomplete bevel gear precision measurement and low working efficiency can be solved, and the working efficiency of bevel gear precision measurement is improved.

The invention discloses a welding path priority method and welding equipment for an automobile electronic ignition coil, and the welding method comprises the steps: obtaining point cloud data through preset track global scanning, generating a digital three-dimensional model consistent with a welding driving motion coordinate system through Gaussian filtering denoising, iterative nearest point registration, B-spline surface fitting and other strategies, and obtaining a welding driving motion coordinate system; the problem of coordinate deviation of traditional path planning is solved. A contour recognition strategy is combined with region growth, feature extraction and template comparison, and a least square method is used for fitting a center line to serve as a reference track; a node setting strategy is adopted, forced and uniform nodes are scientifically arranged, and accurate positioning of a welding head is guaranteed. A double correction mechanism of molten pool monitoring and node feedback is innovatively adopted, a thermal imager collects images and extracts molten pool parameters after preprocessing, a real-time correction instruction is generated in combination with three-level judgment, a lower node adjustment instruction is generated through image processing after node welding, closed-loop control is achieved, welding defects are reduced, and the percent of pass is increased. Corollary equipment adopts an integrated disc design and is matched with a rotary bearing mechanism to realize batch positioning and conveying, a multi-degree-of-freedom mechanical arm performs automatic welding according to a planned path, parameters are adjusted according to welding seam characteristics, and both precision and production efficiency are considered.

The invention relates to the technical field of automation equipment, in particular to a self-adaptive suction method based on crystal processing equipment, which comprises the following steps: S1, acquiring basic parameters of a tray, planning a measurement path of a laser ranging device according to the basic parameters, and setting the distance between measurement points of the laser ranging device according to the measurement path, the laser ranging device moves along the measurement path and collects measurement data of a plurality of measurement points of the material tray according to the distance between the measurement points; s2, sequentially performing data preprocessing, coordinate system establishment and height curved surface fitting on the measurement data of the plurality of measurement points to generate a curved surface equation; s3, material position coordinates and material height parameters on the material tray are obtained, and then the optimal suction height corresponding to each material position is calculated based on the curved surface equation, the material position coordinates and the material height parameters; and S4, the suction nozzle device executes material suction operation according to the optimal suction height. The crystal suction stability of the suction nozzle device is improved.

The invention provides a method and device for repairing a nickel-based alloy turbine blade through surface nickel plating-laser additive synergistically, and belongs to the technical field of part repairing, the device comprises an electroplating or chemical plating module and a laser printing module; the electroplating or chemical plating module comprises a turbine blade clamping assembly and a nickel plating assembly; the turbine blade clamping assembly comprises a two-degree-of-freedom mechanical arm, a first turbine blade clamping piece is installed on the two-degree-of-freedom mechanical arm, a turbine blade containing groove and a baffle containing groove are formed in the first turbine blade clamping piece, a baffle is inserted into the baffle containing groove, and a screwing nut is installed on the baffle. The laser printing module comprises a shell, a six-degree-of-freedom stewart platform is installed on a base at the bottom in the shell, and a second turbine blade clamping piece is installed on the six-degree-of-freedom stewart platform; and a free-form surface fitting module is mounted at the top of the shell. According to the method, repairing defects such as cracks and holes are eliminated, the interface bonding strength is remarkably improved, and the method has the important significance of reducing the cost and saving scarce resources for repairing the turbine blade.

The application provides a curved surface engraving control method based on a laser engraving machine, which comprises the following steps: collecting discrete point data by taking the intersection points of a planar rectangular grid in a planar coordinate system as collection points in a to-be-processed region of a to-be-processed curved surface object; performing parameterized calculation on the discrete point data of each group of intersection points in the horizontal axis direction of the planar coordinate system to obtain a first virtual data sequence, and performing parameterized calculation on each group of discrete point data in the vertical axis direction of the planar coordinate system to obtain a second virtual data sequence; determining a curved surface fitting model of the to-be-processed region based on the first virtual data sequence and the second virtual data sequence; obtaining a preset engraving image, determining a three-dimensional engraving track according to the preset engraving image and the curved surface fitting model, and controlling the laser of the laser engraving machine to engrave according to the three-dimensional engraving track in the to-be-processed region to form the preset engraving image in the to-be-processed region. The application can realize automatic engraving of irregular curved surface objects.

This invention relates to the field of sheet metal processing technology, specifically a sheet metal leveling device and its control method based on surface fitting. It includes a frame assembly, an upper pressure head array, a lower pressure head array, a hydraulic system, and a control system. The upper and lower pressure head arrays are respectively mounted on opposite upper and lower templates and consist of multiple vertically arranged pressure head units. Each pressure head unit includes a drive element, a displacement sensor, a force sensor, and a pressure head body. The control system controls the pressure head units to collect multi-point height data on the sheet metal surface, generate a heat map, and perform surface fitting to obtain the deviation surface and correction stroke matrix, thereby controlling the corresponding pressure head unit to perform leveling and correction. This enables integrated control of multi-point detection and leveling of the sheet metal.

The invention relates to the technical field of flexible circuit boards, and discloses a control method and system for a three-dimensional curved surface attaching jig of a flexible circuit board, and the method comprises the steps: carrying out the surface scanning of a substrate, obtaining the curvature radius data, arranging a plurality of electromagnetic clamping points, dividing the electromagnetic clamping points into a plurality of sectors, meanwhile, calculating a target pressure value of a driving actuator; the release time interval between the adjacent electromagnetic clamping points is calculated, and a boundary time sequence control program is generated; all electromagnetic clamping points are kept in a locked state and the flexible circuit board is positioned in the pre-lamination stage, a flat area, a transition area and a high-curvature area are processed in sequence in the partition lamination stage, the electromagnetic clamping points in corresponding sectors are released according to a boundary time sequence control program, and corresponding target pressure values are applied. And in the pressure maintaining and curing stage, all the electromagnetic clamping points are switched to the locking state again, and partition heating is started. According to the method, the pressure distribution uniformity is ensured, and the quality defect caused by the too large stress gradient is effectively restrained.

Embodiments of the present disclosure relate to the estimation of ground surface using a localized surface fit. A three-dimensional (3D) surface structure (e.g., a road surface profile) can be estimated using nonlinear optimization to fit elevation values ​​to (e.g., accumulated, bias-corrected) LiDAR acquisitions (e.g., sampled in localized regions along one or more predicted curves). For example, LiDAR data (e.g., detected 3D point clouds) can be compensated for ego movements to correct measurement errors, accumulated, and sampled along one or more predicted curves. The elevation of each curve point can be fitted to the elevations of the corresponding sampled points using nonlinear optimization. The resulting road profile (e.g.,(modeled along the wheel track(s)) can be provided to an adaptive chassis control system to modulate the damping characteristics of the chassis system in order to counteract depressions (e.g. potholes) or elevations (e.g. bumps) that are represented in the road profile.

The invention provides a checking method and device for a conical surface matching structure and electronic equipment, and is applied to the technical field of automobile chassis. According to the technical scheme, firstly, size data, mainly including various characteristic parameters of a taper pin structure and a taper hole structure, of a conical surface matching structure are obtained; checking is carried out based on the size data of the structure, the compressive strength and the settling volume, and insufficient strength or stress concentration caused by size deviation is avoided. And then the pressure stress, the tensile stress and the settling volume borne by the taper hole structure are checked based on the size data, it is ensured that the conical surface matching structure meets the stress requirement, and the situation that due to the unreasonable conical surface matching structure, the conical surface matching structure is affected by external loads and the like, connection of the conical surface matching structure fails is avoided.