634 results about "Surface flatness" patented technology

The invention provides a color steel plate coating flatness evaluation method and system based on artificial intelligence. According to the method, the three-dimensional point cloud data is generated by collecting the interference fringe image, and the surface fluctuation characteristics are quantified; capturing a multi-dimensional vibration spectrum of the transmission roller shaft, generating a servo motor compensation control signal, driving a multispectral scanning head to perform reverse displacement compensation, and generating real-time compensation data; inputting the surface topography features in the three-dimensional point cloud and the real-time compensation data into a lightweight convolutional neural network, and outputting fusion features; and dynamically classifying and identifying surface defects and uneven areas based on the fusion result, adjusting a classification threshold in combination with the speed of the production line, outputting a flatness evaluation result, and synchronizing the flatness evaluation result to a speed regulation system of the production line to realize closed-loop optimization. According to the method, laser interference, vibration compensation and lightweight AI technologies are fused, dynamic high-precision evaluation of the surface flatness of the color steel plate of the high-speed production line is achieved, and the problems of defect misjudgment and measurement distortion caused by vibration interference are solved.

The invention discloses a modified polysiloxane coating for a stainless steel pot and a preparation method of the modified polysiloxane coating, and belongs to the technical field of polysiloxane coatings. Comprising the following raw materials in parts by weight: 60-70 parts of hydroxyl polydimethylsiloxane, 20-30 parts of acrylate resin, 15-20 parts of ethanol, 25-30 parts of deionized water, 6-18 parts of modified nano aluminum oxide, 2-4 parts of a friction reducing agent, 0.2-0.4 part of benzophenone and 1-3 parts of a flatting agent. Polysiloxane is used as a main component, so that the coating is endowed with excellent heat resistance; wherein the antifriction agent can improve the wear resistance of the coating; wherein the leveling agent improves the surface flatness of the coating; wherein the modified nano aluminum oxide has good compatibility with polysiloxane, is not easy to agglomerate in the coating, has good dispersity, and can greatly improve the heat resistance, hardness and easy-to-clean property of the coating; the performance is stable and the service life is long; the method has important application value in the technical field of polysiloxane coatings.

The invention relates to the field of laser detection, and discloses a shaving board processing-based surface flatness detection device which comprises a base, a plurality of conveying rods are arranged at the side part of the base, a wood board is placed on the conveying rods, a detection box is fixedly mounted at the top end of the base, and a laser detector is fixedly mounted in the center of the top of the detection box. The laser detector is used for detecting the flatness of the surface of the wood board, a detection auxiliary device is fixedly installed on the side portion of the base located on the lower portion of the detection box, and a grinding device is arranged on the detection auxiliary device; the two rollers in the detection auxiliary device clamp a wood board, the detection plate is leveled to make contact with the side face of the wood board, a half gear is driven to rotate when the wood board inclines, the half gear is meshed with teeth, the position of a lifting block is adjusted, and even if the edge of the wood board protrudes, the edge of the wood board does not protrude. The lifting block can still be adjusted to enable the board to be in a horizontal position, so that the detection precision of the laser detector is improved, and the influence of board inclination on the detection of the laser detector is reduced.

The invention discloses a building precast beam section surface flatness detection method, and belongs to the technical field of building detection. Comprising the following steps: step 1, acquiring three-dimensional point cloud data of an original surface; 2, preprocessing the original point cloud data to obtain a purified point cloud data set; 3, constructing a bicubic parameter curved surface fitting model on the purification point cloud data set, introducing a curved surface curvature calculation formula, and establishing a beam section surface theoretical flatness model; step 4, iteratively extracting sample points from the point cloud data to fit a local plane, calculating distance distribution from all the point cloud data to the local plane, performing comparative analysis on the distance distribution and a theoretical flatness model, and comprehensively obtaining a flatness score of the surface of the beam section; 5, early warning is carried out on the area where defects possibly exist, and a defect thermodynamic diagram is output; and step 6, establishing a flatness evaluation system, determining a quantitative judgment standard of qualification or not, and dividing the precast beam sections into qualified products and unqualified products.

The invention provides an optimization method for parameterization design of a steel formwork, and belongs to the technical field of building construction.The optimization method comprises the steps that a non-uniform rational B-spline surface parameter equation is established, steel formwork block parameterization design is carried out on the basis of the surface parameter equation, and a thickness distribution function and back arris spacing parameters are generated; constructing a support system mechanical parameterization model to determine support spacing optimization parameters and rod piece section sizes, and solving a double-layer decision-making system comprising an upper-layer template deformation minimization decision-making model and a lower-layer concrete surface flatness optimization response model by applying a game optimization algorithm; and a digital manufacturing instruction is generated to establish a mapping relation between a template number and geometric characteristics, a quality real-time monitoring system is established, configuration parameters are dynamically adjusted through a template adaptability evaluation function, and the technical problem that template deformation control is inaccurate due to the fact that design of the special-shaped concrete structure steel template lacks accurate parameterized optimization is solved.

The invention discloses a novel plastic product defect automatic detection device, and relates to the technical field of detection devices, the novel plastic product defect automatic detection device comprises a box body, an inner cavity of the box body is provided with a row of conveying rollers, the conveying rollers are used for intermittently conveying plastic product plates to be detected, and the inner cavity of the box body is provided with a detection assembly for performing defect detection treatment on the plastic product plates. According to the novel plastic product defect automatic detection device, the surface flatness of a plastic product plate is detected through the balls, when protrusions or recesses are detected, marking materials of different colors can be discharged through corresponding channels, marks are reserved at defect positions, operators can conveniently and visually judge whether the defect types are protrusions or recesses, and the detection efficiency is improved. A clear indication is provided for subsequent repair or replacement, the marking materials with two colors are accurately segmented by using the first partition plate and the second partition plate, the marking materials are ensured to accurately correspond to the convex or concave positions on the surface of the plastic product plate, and the marking accuracy and reliability are improved.

The invention belongs to the technical field of electric arc additive manufacturing, and discloses an electric arc additive manufacturing morphology online self-adaptive regulation and control method. According to the method, the forming track and the forming parameters of the unformed part are dynamically adjusted according to the deviation between the actual formed part morphology and the theoretical morphology of the part. In this way, an interlayer closed-loop control mechanism is formed, the forming deviation can be reduced, and the flatness of the surface of the deposition layer can be improved. The method can be widely applied to the field of electric arc additive manufacturing, the problem of poor accumulated forming precision of electric arc additive manufacturing is effectively solved, the forming quality and the surface flatness can be improved in the additive manufacturing process, meanwhile, the process stability is guaranteed, and the more accurate and reliable manufacturing process is achieved.

The invention relates to the technical field of steel template detection equipment, and discloses a surface flatness detection device based on steel template production, which comprises a detection table, two mounting seats are fixedly mounted at the top of the detection table, driving gears are movably connected to the middle sides of the interiors of the mounting seats through bearings, and two guide rails are mounted at the tops of the mounting seats. Two connecting plates are slidably connected outside the guide rail, a telescopic rod is mounted at the top of the mounting seat, a driving rack is mounted on the outer side of the mounting seat, and the telescopic end of the telescopic rod is fixedly connected with the outer sides of the connecting plates. According to the invention, stable and accurate clamping of steel templates with different shapes and sizes is realized, the device can effectively adapt to steel templates with different specifications, frequent clamp replacement or complex adjustment is not needed, the universality and flexibility of detection are greatly improved, the device is matched with a high-precision optical flatness measuring instrument, non-contact measurement can be carried out on the surface of the steel template, and the detection precision is improved. And the accuracy and the reliability of a measurement result are ensured.

The invention discloses an in-situ remanufacturing repair system and method based on three-dimensional point cloud.The in-situ remanufacturing repair system comprises an industrial personal computer, a binocular structure light camera and a collaborative robot, the binocular structure light camera and the collaborative robot are connected with the industrial personal computer, and the collaborative robot is provided with a welding gun connected with an intelligent welding machine; the method comprises the following steps of: performing hand-eye calibration on a binocular structured light camera by adopting dual quaternion and a singular value decomposition algorithm; a binocular structured light camera is used for shooting the workpiece, and a complete point cloud of the to-be-repaired area is obtained; performing surface reconstruction on the to-be-repaired area by using a Poisson surface reconstruction algorithm; according to the side wall fusion optimization formula, path planning is conducted on the to-be-repaired area model in Cura software, and filling path coordinates of the to-be-repaired area are obtained. According to the method provided by the invention, the defect of incomplete fusion of the side wall of the workpiece after additive remanufacturing repair can be reduced, and meanwhile, the surface flatness of the weld joint adjacent to the side wall is improved.

The invention discloses a method for detecting the flatness of a prefabricated wall with holes based on point cloud, and the method comprises the steps: firstly collecting the point cloud data of the surface of the prefabricated wall, and constructing a point cloud data set of the surface of the prefabricated wall; carrying out downsampling processing on the point cloud data in the point cloud data set by adopting a curvature feature and adjacent point normal vector angle dual-threshold screening mechanism; aligning the point cloud data after downsampling processing with a BIM model of the prefabricated wall, marking a hole area, generating a hole area mask, and eliminating interference of invalid data of the hole area; and finally, fitting a global reference plane based on a curvature compensation RANSAC algorithm, calculating a deviation value between the central point of the local curved surface and the global reference plane through a dynamic window, and evaluating the surface flatness of the prefabricated wall body. According to the method, the detection precision and efficiency are improved, noise interference of invalid data in a hole area is avoided, construction defect information is reserved, and the robustness of prefabricated wall surface flatness detection is improved.

The invention relates to a single-sided polishing method for an 8-inch silicon carbide wafer, which adopts a ceramic disc with the radius less than 8 inches to perform single-sided polishing on the 8-inch silicon carbide wafer, and ensures mechanical balance and efficient polishing in the polishing process by reasonably setting the distance between the wafer and the ceramic disc as well as the distance between the wafer and a polishing disc. And the fluidity and the uniformity of the polishing solution are further enhanced through the optimal design of the polishing cloth and the groove body. The small-size wafer is used as an auxiliary tool, the stability and the machining flexibility of the polishing process are improved, the surface flatness of the polished wafer meets the actual production requirement, meanwhile, the production cost is remarkably reduced, and the equipment utilization rate and the production efficiency are improved. The silicon carbide wafer polishing method is efficient, low in cost and high in flexibility, and has remarkable economic benefits and practical value.

The invention discloses a preparation method of a PCB, and the method comprises the steps: preparing a high polymer material into a solution, and adding a nanoscale pore-forming agent to form a mixture; coating the mixture on the surface of a PCB substrate; grinding the surface of the PCB substrate; etching is carried out on the PCB substrate; carrying out chemical plating on the etched PCB substrate; performing electrochemical deposition of a metal layer on the PCB substrate subjected to chemical plating treatment to obtain a metal-clad plate; and performing outer-layer circuit manufacturing on the metal-clad plate to obtain the PCB. According to the PCB prepared by the preparation method disclosed by the invention, the surface roughness is reduced, the surface flatness of the PCB is improved, the binding force between the substrate and the metal layer is improved, and the signal loss of the PCB can be greatly reduced; and meanwhile, the production process flow is shortened, the production cost is reduced, and the production efficiency is improved.

The invention relates to the technical field of laser cutting, and discloses steel and wood laser cutting equipment which comprises a workbench, a frame is fixedly connected to the top of the workbench, and a grinding mechanism is arranged on the frame. The grinding mechanism comprises a first guide rail, a first linear motor, a moving frame, a sliding groove, a sliding block, a driving motor, a rotating rod, a grinding roller, an air blower, a first connecting pipe, an air outlet pipe, a rotating shaft and a first telescopic rod. The first guide rail is arranged on the top of the frame, and the first linear motor is arranged on the first guide rail. Through cooperative operation of a first guide rail, a first linear motor, a driving motor and a rotating rod, a grinding roller can rotate to grind the upper surface of a steel-wood plate, the surface flatness of the steel-wood plate is effectively improved, meanwhile, impurities on the surface of the steel-wood plate are removed, the laser cutting effect is prevented from being affected, a better machining basis is provided for follow-up laser cutting, and the machining efficiency is improved. The cutting precision and the cutting surface quality are ensured.

The invention discloses a nanoscale anti-sticking master batch for an MLCC base film, which is prepared from the following raw materials in parts by weight: 80 to 95 parts of unmodified PET (Polyethylene Terephthalate) resin, 2 to 10 parts of carboxyl modified PET resin, 1 to 10 parts of anti-sticking composition, 0.1 to 2 parts of dispersing agent and 0.1 to 3 parts of antioxidant. According to the anti-sticking master batch disclosed by the invention, the epoxy group grafted and modified nano silicon dioxide and the carboxyl modified PET resin are combined to act, so that an MLCC base film produced by the prepared anti-sticking master batch is high in surface flatness and good in anti-sticking performance. The carboxyl modified PET resin with the molecular weight of 9800 g / mol and the carboxyl number of 40-50 / mol is adopted, the viscosity of the obtained anti-sticking master batch is appropriate, and no adverse effect is caused to subsequent processing production. The roughness of the prepared MLCC base film can reach 15 nm or below, meanwhile, the anti-sticking performance is excellent, and the technical requirements for the high capacitance value and miniaturization of the MLCC can be met.

The invention provides an electric arc additive and subtractive composite manufacturing method and device for a cross structure based on low surface roughness. The device comprises an electric arc additive manufacturing forming system, a milling and subtractive system and a three-dimensional scanning detection system. Firstly, cross structure characteristics are analyzed, an additive manufacturing program is generated through an electric arc additive manufacturing forming system, and a layer is added; secondly, the flatness S, the average height # imgabs0 #, the weld reinforcement h and the height D of each position of the formed surface are analyzed through a three-dimensional scanning detection system, and whether the flatness S exceeds a specified value or not is judged; and finally, material increasing and decreasing judgment is conducted, and if # imgabs1 # imgabs2 #, material decreasing is conducted through a milling and cutting material decreasing system. And if # imgabs3 #, additive repair welding is conducted through an electric arc additive manufacturing forming system. In combination with a three-dimensional scanning detection system, flatness feedback of the formed surface can be obtained in real time, material increasing and decreasing are conducted in time in the cross structure forming process, the roughness of the formed surface of the cross structure is effectively reduced, and the forming precision is improved.

The invention provides a method for grinding and cleaning a wafer back under an advanced process node, and the method comprises the steps: 1, carrying out the polishing of the wafer back, and improving the surface flatness of the wafer back; and 2, cleaning the wafer back, and removing particle defects on the surface of the wafer back. And particles on the surface of the wafer back are removed, and the surface of the wafer back reaches a certain flatness, so that Focus Spot during subsequent photoetching treatment on the wafer is avoided.

The invention discloses an injection mold for multicolor injection molding and a production process thereof, a set of machine vision on-line inspection system with pattern detection and surface flatness detection is integrated, pattern detection is performed on a specific part of a formed part A through optical screen detection, horizontal and vertical coordinates of an actual contour are compared with a preset range, and the pattern of the specific part A is detected. Then, the surface flatness of the part is objectively evaluated by analyzing reflected light distribution on the surface of the part, whether a qualified matrix is provided for second injection or not is judged, and key quality attribute judgment on the intermediate product A before second injection is achieved; according to the method, the waste of raw materials, energy and working hours caused by the fact that known waste products continue to be subjected to second injection is effectively prevented, meanwhile, the position precision and visual definition of final multi-color products at the joints of different colors are guaranteed, the defects of boundary line distortion, blooming and the like are overcome, and the production yield and the resource utilization rate are remarkably increased.

The invention provides a method for preparing an aluminum-titanium target by combining roll bonding and warm pressing of a waste aluminum-titanium target, and belongs to the technical field of powder metallurgy. The preparation method comprises the steps that the waste aluminum-titanium target is pretreated to obtain aluminum-titanium target semi-finished products, N pieces of aluminum-titanium target semi-finished products are taken, slurry containing aluminum powder is sprayed to the surfaces of the N pieces or N-1 pieces of aluminum-titanium target semi-finished products, and after spraying is completed, the aluminum-titanium target semi-finished products are obtained; and laminating the N aluminum-titanium target semi-finished products to obtain a composite plate, carrying out ply rolling on the composite plate to obtain a composite target material, and carrying out warm pressing on the composite target material to obtain the aluminum-titanium target material. According to the preparation method, the target materials can be fully diffused in the warm pressing process, the influence of the surface flatness on diffusion is reduced through the pre-pack rolling treatment, the aluminum powder serves as a soft middle layer, the good buffering and joint filling effects are achieved, diffusion is promoted, and the target material welding rate is gt in an optimal scheme; 95%. According to the preparation method, the utilization rate of the target material is increased, the production cost of the target material is reduced, and recycling of the target material is achieved.

The invention relates to the technical field of inductor manufacturing methods, in particular to a preparation method of an inductor with high and excellent conductivity, which comprises the following steps: S1, winding a coil, namely winding a wire coated with an insulating layer into a hollow shape, and arranging lead parts at two ends of the coil; s2, stripping an insulating layer: stripping the insulating layer of the lead part; and S3, carrying out mold pressing on the magnetic core, carrying out mold pressing on a mixture of a magnetic material around the coil, and exposing a lead end for connecting an external terminal. A wire coated with an insulating layer is wound into a hollow shape, the two ends of a coil are extended to be lead ends, then the insulating layer of the lead part is stripped, a paint film at the lead position of the coil is pre-stripped in advance, and then hot press molding is performed, so that the surface flatness of the lead and an electrode is high, the alternating current impedance is small, and an electroplated layer on the surface of the lead and the electrode is continuous; and the design is not limited to the thickness of the paint film, so that the paint film can be designed to be very thick, and the short circuit defect can reach 0 ppm.

The invention provides a method for machining a slotted hole by using a milling cutter, and relates to the technical field of PCB (Printed Circuit Board) machining, and the method comprises the following steps: determining slotted hole design parameters, selecting a matched hard alloy forming milling cutter according to a milling cutter specification experiment table verified by a large number of experiments, accurately calibrating a machining initial position through a CCD (Charge Coupled Device) visual positioning system, and adopting a milling cutter one-time drilling forming process. The method comprises the following steps: continuously cutting by matching with optimized cutting parameters, monitoring a cutting state in real time in a machining process, carrying out multi-dimensional detection on a slotted hole angle, surface flatness and dimensional precision after machining, adjusting parameters by referring to an error recording table when the slotted hole is unqualified, and carrying out re-machining through milling cutter structure optimization, a one-time forming process and standardized parameter matching. According to the invention, the defects of the traditional process are effectively eliminated, the processing specification is unified, the production efficiency and the product percent of pass are improved, the batch production requirements of high-precision PCB products are met, and the technical problems of large slot angle, concave-convex cutting points, uneven quality and the like in the traditional slot cutter processing are solved.

The invention relates to the technical field of TRD construction method cutting box equipment, and discloses a TRD-based foundation pit construction wall forming device which comprises a cutting box, the cutting box is divided into an upper half part and a lower half part, the upper half part of the cutting box comprises a first support, and one side of the bottom end of the first support is in pin joint with a main guide wheel; a hydraulic cylinder set is fixedly installed on the left side of the middle of an inner cavity of the first support, the output end of the hydraulic cylinder set is in pin joint with a second shaft rod, the bottom end of the second shaft rod is in pin joint with an auxiliary guide wheel, and the bottom of the auxiliary guide wheel is in pin joint with the main guide wheel through a first through groove. According to the foundation pit construction wall forming device based on TRD, the auxiliary guide wheels are arranged, so that the cutting tool row rotationally moving to the bottom position can make large-area contact with the ground, the stress of the upper end and the lower end of the cutting box in the longitudinal pushing and cutting process is effectively reduced, the inclination phenomenon is not likely to happen, and the cutting efficiency is improved. And the surface flatness of the formed construction method wall is good.

The invention relates to the technical field of image processing, and provides a pipe fitting stretching surface feature extraction method, which comprises the following steps: obtaining a surface image of a pipe fitting stretching surface, and obtaining an initial edge image of the pipe fitting stretching surface through edge detection; quantifying the surface concavity and convexity of the stretching surface of the pipe fitting based on the pixel gradient difference expression of the stretching surface of the pipe fitting; combining the spectrogram width of the initial edge image and the amplitude fluctuation condition of the high-frequency component to obtain the surface roughness influence degree of the stretching surface of the pipe fitting; the glossiness difference of all pixel points of the pipe fitting stretching surface is analyzed, and the surface flatness degree of the pipe fitting stretching surface is obtained; obtaining the surface roughness scattering degree of the stretching surface of the pipe fitting; edge continuity of edge detection is determined, and final optimization parameters of edge detection are obtained; and obtaining a final edge image, and carrying out feature extraction on the pipe fitting stretching surface based on the edge expression in the final edge image. The invention aims to solve the problem of feature loss caused by incapability of accurate extraction due to surface quality interference in a pipe fitting stretching surface feature extraction process.

The utility model relates to the technical field of printing and flattening, and discloses a printing and flattening device for textile fabrics, which comprises a base and a supporting block, a supporting frame and a supporting column are arranged on the base, a first groove, a first sliding groove and a second groove are arranged on one side of the base, and an air cylinder is mounted in the first groove. According to the textile fabric winding device, the clamping mechanism is arranged, a cylinder, a fixing column, a second motor, a limiting shaft, a first limiting groove and a second limiting groove are used in cooperation, a worker can take up a winding roller for winding textile fabric, dependence on manual operation is reduced, cost is saved, the textile fabric can be flattened through the flattening roller and the fixing rod, surface flatness is guaranteed, and the textile fabric winding device is suitable for popularization and application. The possible wrinkling or unevenness phenomenon is further eliminated, the problem that the textile fabric is not attractive due to pigment accumulation caused by the wrinkling or unevenness phenomenon during subsequent printing is solved, the printing quality is improved, the production efficiency is improved, and the production cost is reduced.

The utility model provides a sealing metal sheet, a battery monomer and a battery, and relates to the technical field of batteries. The sealing metal sheet is used for sealing a liquid injection hole of a battery monomer, the sealing metal sheet comprises a body, the body is provided with a first surface which is configured to deviate from the interior of the battery monomer, and the first surface is provided with a sinking table. By arranging the sinking table, the molten metal material which does not flow into the space between the sealing metal sheet and the cover plate can be guided to flow into the sinking table, so that the molten metal material is prevented from being accumulated at the periphery of the sealing metal sheet, the surface flatness of the sealing metal sheet after welding can be improved, and the welding stress is reduced. Thus, the structural uniformity of the sealing metal sheet can be improved, the stress state of the sealing metal sheet can be improved, and finally the welding quality between the sealing metal sheet and the cover plate can be improved.

The invention provides a method and system for testing durability of sprayed concrete, and relates to the technical field of concrete test.The method comprises the steps that extreme environment configuration is conducted within a preset application environment range, and a target testing environment is generated; concrete durability loss analysis is carried out based on a preset spraying process, and durability loss constraints are constructed; based on the target test environment and the durability loss constraint, performing an indoor forming test on the to-be-tested sprayed concrete through an indoor forming test piece tool, and adjusting the surface flatness to obtain a test sample; and carrying out durability test and durability prediction on the test sample to generate a durability test result. The technical problem that in the prior art, due to the fact that durability loss of sprayed concrete in the construction process and the comprehensive influence of the actual application environment are not fully considered, deviation exists between the testing result and actual engineering application is solved, and the technical effect of improving durability testing accuracy and engineering applicability is achieved.

The invention relates to the technical field of tunnel construction quality detection, in particular to a tunnel initial spraying concrete spraying quality detection method based on a visual technology, which comprises the following steps: S1, arranging an automatic cleaning device at the front end of equipment through multi-modal sensor fusion and a self-adaptive exposure denoising algorithm in combination with a multi-information joint correction technology, and performing multi-modal sensor fusion and self-adaptive exposure denoising; through original point positioning calibration, high-precision robust acquisition of three-dimensional coordinates and apparent vector data of the spraying and mixing surface in a complex environment is carried out. Through multi-modal sensor fusion, anti-interference processing and accurate calibration, high-precision robust acquisition of the spraying and mixing surface data in a complex tunnel environment is ensured, a reliable data basis is provided for subsequent detection and control, the spraying and mixing surface flatness control precision is effectively improved, the material loss rate is reduced, and the working efficiency is improved. And the strategy can be adaptively adjusted according to geological conditions and construction states, and the construction efficiency and safety are both considered.

The invention discloses a single-line laser medium plate surface flatness measuring method and system, and belongs to the field of metallurgical equipment intellectualization, and the method comprises the steps: obtaining a laser line image of a to-be-measured medium plate, the laser line image being an image obtained by carrying out laser line projection on the medium plate through line lasers in the longitudinal direction and the transverse direction; collecting a cross point of the projected laser rays in two sequentially adjacent laser ray images, and correcting according to the cross point of the projected laser rays; performing image preprocessing on the laser line image, performing laser contour line extraction on the preprocessed laser line image, and obtaining an area surrounded by the extracted laser contour line; according to the area surrounded by the extracted laser contour line and the standard area, the surface straightness of the medium-thickness plate is obtained through calculation; the calculation precision and stability of the straightness of the medium-thickness plate are improved.

The invention relates to the technical field of punching machines, in particular to a pressure control method and system for products produced by a high-precision steel frame punching machine and computer equipment. According to the method, the pressure of the punch product is preliminarily adjusted through the load error, the load change is responded in real time, the adjustment can be quickly made when the pressure is too large or too small, the deviation of the surface form can be found in time by obtaining the surface image and the height value in real time and calculating the real-time maximum and minimum curvature and the Gaussian curvature, and the accuracy of the surface form is improved. The pressure is dynamically adjusted according to the curvature difference, surface deformation caused by too large or too small pressure is avoided, the surface flatness and shape accuracy of the product are guaranteed, the quality of the final product can be remarkably improved by continuously monitoring and adjusting the pressure in the production process, and the production efficiency is improved. The pressure is adjusted according to the load error between the actual load and the target load, the feedback speed is increased, real-time adjustment in the production process is ensured, and the precision and efficiency of the whole production process are improved.

The invention is applied to the technical field of flatness detection, and discloses a flatness detection mechanism which comprises a workbench, a switching linear module is fixedly arranged on the upper surface of the workbench, a switching seat is mounted on the surface of the switching linear module, and a laser detector is fixedly mounted at the upper end of the switching seat. And a feeding mechanism is arranged on the upper surface of the workbench, and efficient detection of the flatness of the surface of the material through a laser detector is achieved by positioning and conveying the material. According to the flatness detection mechanism, the combination of the feeding linear module and the feeding seat is matched with the guiding of the limiting plate to the plate, so that the bearing plate and the plate placed on the bearing plate can be accurately conveyed to a designated position, the problem of plate position deviation in the traditional feeding process is solved, the plate can accurately enter a detection area of a laser detector, and the detection efficiency is improved. It is guaranteed that the laser detector can comprehensively and accurately scan the surface of the plate according to the preset path, and the high-precision advantage of laser detection is brought into full play.

The invention relates to a copper-clad plate surface flatness detection device, and relates to the technical field of copper-clad plate flatness detection, the copper-clad plate surface flatness detection device comprises a rack, a workbench arranged on the rack and a supporting plate rotatably arranged on the workbench, the supporting plate is provided with an accommodating hole for the copper-clad plate to be movably installed, and the accommodating hole is provided with a positioning hole. The rack is provided with a plugging assembly used for movably plugging the open end of the containing hole, an overturning assembly used for driving the supporting plate to rotate and a detection assembly used for detecting the surface flatness of the copper-clad plate. The method has the advantages that the risk of damage to the surface of the copper-clad plate is reduced, and the detection efficiency and the detection accuracy of the surface flatness of the copper-clad plate are improved.