63943results about "Metal working apparatus" patented technology

A stop for use with an electric drill bit, the stop having at least one threaded sleeve for positioning the stop relative to a surface into which the drill bit will extend. The stop may have both an inner and an outer sleeve. The sleeves are mounted coaxially, one inside the other about the drill bit. One of the sleeves, preferably the inner sleeve, provides coarse adjustment of the position of the shoulder relative to the tip of the bit, while the other, preferably the outer sleeve, provides fine adjustment of the position of the shoulder relative to the top of the bit.

An edge guide is provided. A structure includes curved surface over which a print media can travel. The print media includes a first edge and a second edge that is opposite the first edge. A first media guide is contactable with the first edge of the print media. A second media guide is contactable with the second edge of the print media. The second media guide is spaced apart from the first media guide. A relative spacing between the second media guide and the first media guide is adjustable such that a distance between the first media guide and the second media guide is variable. The second media guide includes a mechanism that applies a nesting force to the second edge of the print media to cause the first edge of the print media to move toward and contact the first media guide.

The invention discloses a control method and equipment suitable for a rotary turn-over clamp of a numerical control milling center, and relates to the technical field of numerical control machining. The clamping force is optimized through the multi-source sensing and digital twinning technology, and workpiece deformation is prevented; thermal compensation and an error transfer chain model are integrated, the turnover angle is accurately corrected, and error accumulation is restrained; real-time comparison, traceability and self-adaptive adjustment in the machining process are achieved through digital twin pre-verification and multi-sensor closed-loop monitoring; the problems of out-of-tolerance of precision and batch consistency caused by unstable clamping, thermal deformation and error transmission in multi-surface milling of high-precision parts are solved, and the precision, reliability and process adaptability of complex part machining are remarkably improved.

The present invention relates to a shear-foil-type cutter system for an electric shaver, said cutter system including an upper cutter having at least one field of perforations and a lower cutter pressed against said upper cutter having a particular dense blade geometry of the lower cutter and large overlap angle with the upper cutter,

The invention relates to the technical field of bolt tightening, and provides an intelligent bolt tightening control method and system based on axial force measurement. Comprising the steps of collecting bolt identification and process parameter data, collecting temperature measurement data, and obtaining sound velocity compensation parameters and elastic modulus compensation parameters. And zero-load preloading data are collected and processed to generate zero-load baseline data, and a self-calibration model is obtained. Axial force data and ultrasonic echo data are collected, and an axial force fusion estimation result is obtained. And comparing an axial force fusion estimation result with target axial force data. And when in the target interval, fine twisting control is carried out based on model predictive control and a micro-stepping strategy, and the controllable damping unit is driven to carry out energy absorption and stopping. And acquiring an axial force fusion estimation result when the target axial force is reached, processing the data in the holding stage to obtain an axial force rebound check result, and if the axial force rebound check result exceeds the limit, performing secondary twisting control. According to the scheme, refinement and traceability of the bolt tightening process are achieved.

The application provides a razor blade opening and closing control mechanism of a shaver and the shaver, the shaver has a razor assembly, the opening and closing control mechanism has: a cover, a rotating part and a first connecting structure are arranged, the razor assembly of the shaver is connected with the cover; a supporting piece, a rotating connecting part matched with the rotating part is arranged, the cover can rotate relative to the supporting piece; a push and twist piece is connected with the cover and can move relative to the supporting piece, the push and twist piece is provided with a second connecting structure matched with the first connecting structure. The razor blade opening and closing control mechanism of the shaver provides an opening mode completely different from the existing razor blade opening and closing control mechanism, the noise is small when opening, and the defect that the razor blade will immediately pop out due to the mistaken touch of the razor blade is reduced through the arrangement of the opening and closing control mechanism.

The invention relates to a tin ring automatic focusing laser soldering tin fixing and 3D welding spot detecting system, and belongs to the technical field of industrial automatic laser processing. The system is characterized in that a tin ring preparation module identifies pins in real time and dynamically optimizes winding parameters through visual positioning and a self-adaptive winding head, and performs defect identification and pre-repair analysis through multispectral imaging; the soldering tin positioning module is used for switching stations through a rotary table, and precise positioning and clamping of a product are realized by combining laser contour sensing and a focusing compensation algorithm; the laser tin soldering module can visually identify tin materials and automatically call welding parameters, laser power and action time are regulated and controlled in real time by establishing a regional heat conduction model, and gradient cooling is implemented after welding; and the 3D detection module adopts dual-mode scanning, constructs a welding spot three-dimensional model based on fusion data, recognizes microcracks through super-resolution processing, and discriminates the welding spot quality. And automation and intellectualization of the whole process from tin ring preparation to welding spot quality detection are achieved.

The invention discloses an automobile door cover high-precision self-adaptive assembling and adjusting system based on physical field digital twinning, and the system comprises a multi-mode flexible sensing system which is used for collecting the geometric and mechanical data of a door cover and a door frame in real time; the digital twinning and real-time simulation prediction module is used for constructing and synchronizing a high-fidelity virtual model and predicting a gap and a surface difference after assembly based on a physical information neural network; the reinforcement learning intelligent decision model is used for outputting an optimal adjustment instruction according to the prediction deviation; and the automatic guiding and executing module is used for executing the adjusting instruction and completing assembling and tightening of the door cover. According to the automobile door cover high-precision self-adaptive assembling and adjusting system based on physical field digital twinning, high automation of door cover assembling is achieved through intelligent sensing, real-time optimization and self-adaptive control.

The invention relates to the technical field of laser pipe cutting machining, and discloses a laser pipe cutting machine machining optimization method for small pipes. The method comprises the following steps: acquiring three-dimensional point cloud data of a to-be-processed pipe, and extracting a pipe axis direction vector and pipe wall thickness distribution data through geometric topology analysis; a dynamic machining coordinate system is established based on the axis direction vector, and the theoretical projection position of the laser focus in the coordinate system is calculated; material absorption characteristic parameters are matched according to the pipe wall thickness distribution data, and a laser power density gradient adjusting instruction is generated; monitoring the radial run-out amount in the rotating process of the pipe in real time, and generating a laser focus track compensation parameter in combination with a theoretical projection position; and finally, the laser power density gradient adjusting instruction and the focus track compensation parameters are fused to generate a cutting path control signal, and a laser cutting head is driven to complete machining. According to the method, the problems of insufficient precision and unstable quality in the machining process of small pipes are effectively solved, and the machining adaptability is improved.

The invention discloses a robot welding pipeline flange displacement special clamp, and relates to the technical field of ship manufacturing equipment, the clamp comprises a processing table, a welding mechanical arm, a placing mechanism, two groups of pipeline clamping mechanisms, two groups of flange fixing mechanisms, a traction mechanism, a rotating platform and three screw rod sliding tables; the placing mechanism is slidably mounted in the middle of the machining table through the rotating platform, and the two pipeline clamping mechanisms are symmetrically slidably mounted on the two sides of the placing mechanism and can synchronously move and clamp pipelines. The two flange fixing mechanisms are symmetrically arranged on the two sides of the containing mechanism and horizontally move through a lead screw sliding table. The traction mechanism is connected with the machining table through a lead screw sliding table and can lock / unlock the rotating platform and drive the containing mechanism to move. The welding mechanical arm is in linkage with the clamp and can conduct welding along the butt joint axis. Multi-degree-of-freedom posture adjustment of a pipeline and a flange can be achieved, a straight pipe and a 0-90-degree bent pipe are matched, it is guaranteed that welding is in a horizontal butt joint state all the time, and the welding quality and efficiency are improved.

The invention discloses an industrial bolt intelligent identification and accurate grabbing control method and system based on depth vision, and the method comprises the steps: obtaining multispectral image data, carrying out the fusion detection of the nut edge, thread texture and other features of a bolt through an enhanced YOLOv8 network, screening an effective bolt, and eliminating the interference of a gasket, chippings and the like; extracting feature points to solve a 6DoF attitude, fusing vibration data of the mechanical arm to realize motion compensation, and outputting a three-dimensional coordinate and an attitude angle under a coordinate system of the mechanical arm; the three-dimensional coordinates are converted into motion coordinates, and the grabbing position is corrected in combination with the normal vector of the assembly surface; planning a path and generating grabbing strategies such as clamping jaw opening amplitude and clamping force matched with the bolt specification; the clamping force is dynamically adjusted based on feedback of the six-dimensional force sensor, and accurate grabbing is achieved. The system comprises a visual perception subsystem, an intelligent decision-making subsystem and a precise execution subsystem. The bolt recognition precision and grabbing stability in the complex environment are improved, and the assembly requirements of bolts of multiple specifications can be met.

A fixed blade knife includes a handle having an inner surface. A blade has a tang that extends at least partially along the inner surface of the handle. A bolster extends along at least a portion of the tang and releasably connects to the handle.

The invention discloses a tool for assembling an air spring sealing assembly, and the tool is characterized in that the tool comprises a positioning mechanism which is used for positioning and fixing an air spring body; the press fitting mechanism comprises a guide sleeve and a pressure head; the guide sleeve is provided with a vertically-through guide cavity, and the guide sleeve is driven by a first driving piece to move up and down and can cover the mounting end part in the down stroke; the pressure head is coaxially arranged above the guide sleeve, and is driven by a second driving piece to independently move up and down; the clamp spring guide-in seat is arranged at the top of the guide sleeve, a guide-in cavity penetrating up and down is formed in the clamp spring guide-in seat, and the guide-in cavity is coaxially communicated with the guide cavity; and the snap spring pre-tightening mechanism is used for performing radial extrusion on the snap spring placed at the port position of the guide-in cavity, so that the snap spring falls into the guide-in cavity after being tightened. The press-fitting device has the advantages that the press-fitting of the sealing cover and the snap spring is combined in one step, the problems of deflection, popping and the like of the snap spring in the assembling process are effectively solved, operation is simple and safe, and assembling efficiency is high.

The invention relates to the technical field of mechanical automation control, in particular to a bearing pressing machine control method and system. The method comprises the following steps: acquiring multi-dimensional monitoring data in a press fitting process; based on the difference between the monitoring data at the current moment and the data at each moment in the preset window, constructing a deviation degree sequence of each dimension at the current moment; adjusting the length of a preset window based on the correlation of the deviation degree sequence to obtain a target window at the current moment; determining a truncation distance of clustering analysis according to the data point distribution sparseness of the monitoring data in the target window; taking the truncation distance as a parameter, and performing clustering analysis on the data points in the target window through a density clustering algorithm to identify abnormal data points; and when the monitoring data at the current moment is abnormal, the bearing press-fitting machine is controlled to execute a preset response action. According to the method, the analysis window and the clustering truncation distance are adaptively adjusted, so that the accuracy of abnormal state recognition under the multi-stage working condition is improved.

The invention provides a shaft end nut locking position identification and tightening control method, and belongs to the technical field of industrial intelligent manufacturing, and the method comprises the steps: installing a high-precision inductive displacement sensor to monitor the axial displacement of a nut in real time; constructing a tightening control system of an integrated torque measurement and displacement monitoring unit; collecting real-time displacement data and eliminating interference through a sliding window filtering algorithm; identifying a nut locking critical point based on a displacement gradient analysis method; calculating an optimal torque function according to the shaft end contact mechanical mathematical model; the locking torque is accurately adjusted by adopting a temperature compensation type torque control method; a multi-mode locking intelligent identification model is used for analyzing locking process parameters and dynamically adjusting a tightening control parameter set, and accurate identification of an initial contact position and intelligent optimization adjustment of tightening parameters in the shaft end nut locking process are achieved.

The invention provides a machine tool machining parameter adjustment method and system, relates to the technical field of machine tool machining parameter adjustment, and aims to infer local acoustic impedance of a workpiece material in real time by emitting sound waves and receiving echo signals on the workpiece material in front of cutting of a cutter and extracting acoustic features. And when the local acoustic impedance is continuously higher than a preset normal reference value and exceeds a preset threshold value, determining that a local abnormal region exists, and generating an early warning signal. And before the tool makes contact with the local abnormal area, the machining parameters are adjusted in advance according to the early warning signal. And real-time feedback signals in the cutting process are continuously monitored, and the machining parameters are further adjusted based on the real-time feedback signals and the early warning signals. The problems that in the prior art, due to uneven local hardness of a workpiece material, a tool is unexpected to be abraded, and machining size deviation is accumulated can be effectively solved.

The invention discloses a high-precision full-automatic slitting system which comprises a transferring device, a slitting device and a slitting device. The feeding device is used for storing the molded connecting piece and feeding the molded connecting piece to the transferring device; the rough cutting device comprises a rough cutting mechanism and a material pulling mechanism, the transferring device is suitable for transferring the molded connecting piece into the rough cutting device, and the material pulling mechanism is suitable for clamping and pulling the molded connecting piece; the material receiving device is suitable for receiving the separated single-row products; the accurate cutting device comprises a positioning table and an accurate cutting mechanism; the transfer table is used for transferring the precisely cut products; the circulation device is suitable for sequentially carrying the products from the positioning table to the fine cutting mechanism and the transfer table; the carrying device comprises a first carrying mechanism and a second carrying mechanism, the first carrying mechanism is suitable for carrying the products to the positioning table from the material receiving device, and the second carrying mechanism is suitable for carrying the products away from the transfer table; and the discharging device is used for receiving the products carried by the second carrying mechanism. By the adoption of the structure, automatic and efficient slitting of products can be achieved.

The invention discloses a machine vision-based numerical control machine tool cutter wear identification method and system, and relates to the technical field of machine vision. A numerical control machine tool cutter two-dimensional image sequence is collected, high-precision point clouds are obtained through three-dimensional reconstruction and calibration, and high-precision cutter reference three-dimensional point clouds are obtained; constructing a functional region division rule, segmenting the high-precision tool reference three-dimensional point cloud to obtain a tool functional region, and generating tool region structured reference data through geometric shape quantitative description algorithm analysis; collecting regional structured data of the cutter in different machining periods, and obtaining a shape evolution track of the cutter through space-time registration; constructing a tool wear recognition model based on the time sequence convolutional network, inputting a tool morphology evolution trajectory, and outputting a tool wear type; and collecting tool historical case data to construct a wear mechanism knowledge base, performing matching mapping on a tool wear type and the knowledge base, and generating a tool wear identification result. And based on the wear identification result, realizing the identification of the wear of the numerical control machine tool cutter.

The invention provides a method for automatically centering and assembling a bearing on a long-axis part, and belongs to the technical field of bearing assembly.The method comprises the steps that position information of the long-axis part and the bearing is collected in real time through a binocular camera and a laser distance measuring sensor, a central line equation is calculated through the least square method, and position deviation is determined; a centering adjustment vector is generated to control a multi-degree-of-freedom precise attitude adjustment platform to perform preliminary adjustment, a mechanical arm is matched with high-precision laser ranging to perform precise centering, the centering process is modeled into a weighted undirected graph, an optimal adjustment path is solved, optimal press fitting parameters are calculated based on a bearing press fitting physical mechanics equation, and press fitting is performed. Meanwhile, the assembling process is monitored through a force sensor and a displacement sensor, an assembling quality evaluation matrix is constructed, finally, the assembling result is detected and evaluated, and high-precision automatic assembling of the long-axis part and the bearing is achieved.

The application belongs to the technical field of zinc alloy, and particularly relates to an anti-aging high-strength and high-toughness degradable zinc alloy bar, a preparation method and application, which comprises the following components by weight percentage: Cu 1.5-2.0%, Mg 0.01-0.05%, and the balance of Zn; the preparation method of the anti-aging high-strength and high-toughness degradable zinc alloy bar is that zinc alloy ingots are sequentially subjected to homogenization treatment and multi-pass rotary forging treatment to obtain the anti-aging high-strength and high-toughness degradable zinc alloy bar, and the number of passes is more than 7; the application has good strength, toughness and anti-aging capacity.

The invention discloses a diamond cutter path error compensation method based on cutter wear evolution, which comprises the following steps: S1, multi-modal sensor data acquisition and processing: in the machining process, key state information between a diamond cutter and a workpiece is acquired in real time through a multi-modal sensor; s2, tool wear modeling: key geometric parameters and evolution trend of tool wear are extracted from the collected and processed data, and tool wear modeling is carried out. And S3, artificial intelligence prediction of the abrasion loss: training a tool abrasion prediction model based on a deep learning network structure. And S4, tool path compensation is conducted, specifically, the predicted abrasion loss and the actual free-form surface model are combined, the tool path compensation amount and the compensated control point coordinates are calculated, a new machining path is generated, and dynamic compensation of tool cutting edge abrasion is achieved. And S5, system integration and closed-loop control: integrating the steps on processing equipment, and realizing real-time data interaction and synchronization through a unified data protocol.

The invention discloses an automobile bumper stamping die change locking mechanism and relates to the technical field of automobile stamping dies, a stamping base is used as a basic support, vertical force bearing columns on the periphery of the stamping base are connected with a top protection plate, a central power execution cylinder of the protection plate is connected with a workpiece bearing table through a hydraulic driving rod, and an upper die opposite to a lower die is mounted at the lower end of the bearing table. According to the mold rapid locking mechanism, adjusting supporting blocks are welded to the two sides of a base table, and transmission screws on the adjusting supporting blocks can adjust the position of a locking control box; a rotating gear in the box is meshed with an L-shaped clamping arm tooth block, a rubber clamping pad at the front end of a driving arm and a rubber extrusion block in front of the box, a lower die is clamped from the periphery and the two sides, a stroke limiting supporting column of a supporting base is matched with a bearing table guiding structure to ensure stable lifting, and the bearing table is provided with an infrared mistaken touch prevention sensor and a safety relay module to guarantee safety. The upper die is detachably installed through the lifting lug plate and the fastening nut, the scrap collecting bin automatically enters and exits through the driving motor and the transmission screw, and the stamping die changing requirement of the bumper is met.

The invention discloses an integrated machining device suitable for a large marine propeller, which comprises a machining adjusting assembly, the machining adjusting assembly is composed of an X-axis moving mechanism, a Y-axis moving mechanism and a Z-axis moving mechanism, one side of the Z-axis moving mechanism is fixedly provided with a rotating mechanism, one end of the rotating mechanism is fixedly connected with a cutting assembly, and the other end of the rotating mechanism is fixedly connected with a cutter; according to the large marine propeller integrated machining device with the automatic machining function and the self-adaptive clamping function, through the integrated multi-axis linkage machining adjusting assembly and the three-dimensional scanner, automatic path planning can be conducted, and automatic operation is achieved; therefore, the dependence on advanced technicians is greatly reduced, the machining efficiency and the product consistency are remarkably improved, and meanwhile, through the collaborative design of the rotatable three-jaw chuck and the center supporting mechanism, simultaneous reliable supporting from the interior and the exterior of the workpiece can be automatically achieved during clamping.

The invention discloses a PCB drilling quality detection method, system and device based on image recognition, and relates to the technical field of PCB drilling quality detection. The PCB drilling quality detection method based on image recognition comprises the following steps: extracting a first characteristic parameter, used for representing the drilling quality of a processed through hole, of a target PCB; according to the first characteristic parameter, evaluating a quality score of the processed through hole of the target PCB; based on the second characteristic parameter of the processing equipment, obtaining a health factor for representing the stability of the processing equipment; according to the quality score and the health factor, pre-estimating a pre-estimated score of the unprocessed through hole of the target PCB; estimating a product score of the PCB according to the quality scores of all the processed through holes of the target PCB and the estimated scores of all the unprocessed through holes; and adjusting a maintenance strategy according to the product score of the PCB. The problem that in the prior art, drilling quality evaluation of a PCB is usually carried out after overall drilling detection is completed, and hysteresis exists is solved.

The invention relates to a full-automatic assembling machine for vehicle hooks. The full-automatic assembling machine comprises a rotary table mechanism, a first feeding mechanism, a second feeding mechanism, a third feeding mechanism, a pressing mechanism and a discharging mechanism. The pressing mechanism comprises a pressing assembly and a detection assembly; the detection assembly comprises a detection rod, a sliding table, a weighing sensor and a sliding table driving part; one end of the weighing sensor is connected with the detection rod, and the other end of the weighing sensor is connected with the sliding table through a floating connector. The full-automatic assembling machine for the vehicle hook has the following advantages that the downward pressing assembly conducts downward pressing to enable the pressing block, the clamping block with the elastic piece and the hook body to form a complete hook; the detection rod is used for simulating a rod piece clamped into the hook on the sun shield, and the weighing sensor is used for detecting the pressure of the detection rod entering the hook body and the pulling force of the detection rod separating from the hook body, so that whether the function of the hook product is normal or not is judged through the pressure and the pulling force.

According to the embodiment of the invention, the industrial robot technology is applied to the rolling forming process of the variable cross-section part, and the rolling path can be dynamically adjusted according to the variable cross-section characteristics of the part, so that efficient machining is realized. According to the technology, the limitation of an existing technology in complex geometrical shape machining is broken through and solved, and an industrial robot can conduct high-quality and high-precision rolling forming on the variable cross-section part of a complex structure under the condition that the industrial robot does not depend on a mold. In addition, by combining the flexible path control capability of a robot, the forming precision of the variable cross-section part is remarkably improved, and compared with a raw material, the mechanical property loss of a bending area material of the part obtained after forming through the technology is smaller than 30%.

The invention provides an auxiliary device for steel pipe construction welding, and relates to the technical field of pipeline welding, and the auxiliary device comprises two arc-shaped bearing bodies, an auxiliary main frame, an aligning mechanism and a rotary driving system. The central angle of the arc-shaped bearing body is larger than 180 degrees, automatic centering of the steel pipes is achieved through the outer pressing supporting rod assembly and the inner positioning supporting rod assembly, and it is guaranteed that the two sections of steel pipes are concentric. And the welding head mounting seat is connected with the rotary driving piece through the arc-shaped movable clamping body to drive the welding head to continuously rotate around a welding seam, so that high-quality girth welding is completed. The device solves the problems of low centering precision and poor efficiency in traditional welding, has the advantages of high automation degree, high stability, convenience in assembly and disassembly and the like, and is suitable for quick welding of municipal steel pipe engineering.

The invention relates to the field of electric power, in particular to an angle steel tower bolt and double-nut mounting robot which comprises a climbing platform crawling along an angle steel tower, and a material supplementing device is fixed to the climbing platform and synchronously advances along with the climbing platform; a mechanical arm is further fixed to the climbing platform, a fastening device is fixed to the driving end of the mechanical arm, and the material supplementing device is located in the moving range of the mechanical arm. The fastening device comprises a fixing base fixed to the mechanical arm, a guide rail is vertically arranged on the fixing base, and a bolt fastening base and a nut fastening base are both in sliding fit with the guide rail. The nut fixing sleeve and the bolt fixing sleeve are arranged on the bolt fastening base and the nut fastening base respectively and are coaxial, and openings of the nut fixing sleeve and the bolt fixing sleeve are opposite. One-time continuous fastening operation of bolts and double nuts on a plurality of bolt hole positions of a flange plate on an angle steel tower can be achieved in one-time tower climbing operation, and the installation efficiency is high.

The invention provides a workpiece machining path compensation method and system based on multi-vision cooperative localization, and relates to the technical field of workpiece machining.The method comprises the steps that a compensation reference coordinate system of a workpiece machining path is established; determining a theoretical machining path of the workpiece according to the CAD model and the process planning of the workpiece, and mapping the theoretical machining path to the compensation reference coordinate system; performing global coarse compensation on the theoretical processing path to generate a global compensation amount and a global compensation path; performing local compensation on the global compensation path according to the local point cloud to obtain a local compensation amount and a local compensation path; according to the cutting parameters of the workpiece, the local compensation path is subjected to flexibility compensation, and the flexibility compensation amount is obtained; under the compensation reference coordinate system, compensation quantity fusion is carried out on the global compensation quantity, the local compensation quantity and the flexibility compensation quantity, and a final compensation path is generated; and executing the final compensation path. According to the method, the execution precision and stability of the machining path and the adaptability to complex machining working conditions are remarkably improved.