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838 results about "Linkage (mechanical)" patented technology
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A mechanical linkage is an assembly of bodies connected to manage forces and movement. The movement of a body, or link, is studied using geometry so the link is considered to be rigid. The connections between links are modeled as providing ideal movement, pure rotation or sliding for example, and are called joints. A linkage modeled as a network of rigid links and ideal joints is called a kinematic chain.
Numerical control machine tool dynamic precision control method and system based on multi-axis linkage error compensation
The invention provides a numerical control machine tool dynamic precision control method and system based on multi-axis linkage error compensation, and relates to the technical field of mechanical manufacturing, and the method comprises the steps: collecting shaft system motion parameters and real-time cutting load parameters of a multi-axis numerical control machine tool in a linkage machining process in real time; shafting motion parameters comprise displacement, speed and acceleration of each feed shaft, and cutting load parameters are obtained through inversion of main shaft current and servo driving torque; calculating a dynamic following error of each feed shaft in a linkage state based on the shaft system motion parameters; and carrying out load coupling correction on the dynamic following error by fusing real-time cutting load parameters to obtain an initial multi-axis linkage dynamic error. According to the invention, real-time precision control in the high-dynamic machining process can be realized.
Owner:GUANGZHOU CITY POLYTECHNIC
Special fixture for robot welding pipeline flange displacement
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.
Owner:YANGZHOU LONGHE SHIPBUILDING CO LTD
Dynamic thermal deformation compensation method of numerical control grinding machine
The invention discloses a dynamic thermal deformation compensation method for a numerical control grinding machine. The dynamic thermal deformation compensation method comprises the following steps that three-dimensional temperature field data of a mechanical head are obtained in real time through a distributed temperature monitoring unit; inputting the three-dimensional temperature field data into a numerical control grinding machine thermal deformation digital twin model, and predicting thermal deformation and spatial distribution of the mechanical head in a future time period through coupling temperature field-stress field-deformation field simulation calculation; and generating a compensation strategy according to the thermal deformation and the spatial distribution, driving the radiator to move to a thermal deformation sensitive area for directional heat dissipation, and adjusting the position and posture of the grinding head through a five-axis linkage system of the numerical control grinding machine to offset the predicted thermal deformation. A three-dimensional temperature field of the mechanical head is reconstructed in real time through the distributed temperature monitoring unit, and accurate real-time prediction of thermal deformation and spatial distribution is achieved; and meanwhile, a five-axis system is cooperated to pre-adjust the position and posture of the grinding head, and the thermal deformation restraining precision and the machining stability are remarkably improved.
Owner:HUANENG (SHANGHAI) POWER MAINTENANCE LLC
Multi-axis multi-field coupling fatigue test device
The invention discloses a multi-axis multi-field coupling fatigue test device, and belongs to the technical field of material testing. The device comprises a rack, a multi-axis loading unit, an environment simulation unit, a dynamic sealing interface and a cooperative control system. The core of the device is that the test sample can simultaneously bear the coupling effect of multi-axis mechanical stress (pulling, pressing and twisting) and various environmental fields (such as high and low temperatures, corrosive media, illumination and electric fields) through a highly integrated design; and the dynamic sealing problem of the actuator rod in the environment box is solved through an innovative dynamic sealing interface (such as labyrinth-magnetofluid composite sealing). According to the invention, accurate linkage control of multiple channels is realized through the cooperative control system, the service environment of key parts under actual complex working conditions can be truly simulated, and a reliable test platform is provided for failure analysis and life prediction of products under multi-field coupling.
Owner:DEZHOU UNIV
Autonomous planning algorithm for automobile gluing path
The invention discloses an autonomous planning algorithm for an automobile gluing path, and relates to the technical field of automobile manufacturing, and the algorithm comprises the specific steps: collecting multi-source data through a line laser radar and an industrial camera, carrying out the preprocessing and synchronous fusion, carrying out the point cloud processing and curved surface modeling, generating and optimizing a gluing path, and adjusting the deviation in real time. And finally, converting into a mechanical arm instruction, controlling an executing mechanism to move, and synchronously adjusting gluing parameters and the posture of a gun head to finish high-precision gluing operation. Through dynamic formula linkage design, full-process self-adaption of track planning and execution control is achieved, manual intervention is reduced, and the gluing quality and the production efficiency are guaranteed; meanwhile, a high-precision positioning and complex curved surface modeling system is constructed by adopting a multi-sensor fusion and curvature self-adaptive NURBS weight factor formula, so that the positioning reliability and the curved surface model precision are ensured, and the adaptation requirement of a complex gluing scene of an automobile body is met.
Owner:NAT INSTR SMART EYES (CHONGQING) TECH CO LTD
Docking apparatus
PendingUS20260110202A1Vehicle body-frame connectionsShrinkage connectionsClassical mechanicsLinkage (mechanical)
Upon docking between different parts, a docking system maintains a strong docking state in accordance with linkage of locking according to magnetism and locking according to mechanical connection. The docking system also prevents generation of gaps in various directions including upward, downward, left and right directions in the docking state, thereby being capable of securing durability and quality of each portion.
Owner:HYUNDAI MOTOR CO LTD +2
Multi-section bridge positioner
PendingCN120700789ABridge structural detailsBridge erection/assemblyClassical mechanicsLinkage (mechanical)
The invention discloses a multi-section type bridge positioner which comprises mounting rings, a bridge reinforcement cage, telescopic mechanisms and a positioning plate, a plurality of mounting rings are arranged on the surface of the bridge reinforcement cage, and the four telescopic mechanisms are evenly distributed on the surfaces of the mounting rings; the adjacent ends of the four telescopic mechanisms are each provided with a positioning plate used for clamping a bridge reinforcement cage. Each telescopic mechanism comprises a groove, a rectangular plate, a movable pipe and an adjusting piece, synchronous fine adjustment in four directions can be achieved through mechanical linkage of the telescopic mechanisms and the adjusting pieces, and therefore it is ensured that the reinforcement cage is centered and positioned, the four telescopic mechanisms are evenly distributed on the surface of the mounting ring, each telescopic mechanism independently controls one positioning plate, and the positioning effect is good. Accordingly, four-direction synchronous clamping of the bridge reinforcement cage is achieved, centering positioning of the reinforcement cage can be guaranteed, the effect of avoiding deflection is achieved, rapid centering of the upper reinforcement cage and the lower reinforcement cage can be achieved through the extensible multiple sections of connecting pieces, and error accumulation is avoided.
Owner:CSCEC STRAIT CONSTR & DEV
Device for transferring vehicles in workshop
PendingCN120922018AItem transportation vehiclesVehicle with loading rampLinkage (mechanical)Three-Wheeler Vehicles
Owner:安徽丰源装备科技有限公司
Steel member preheating welding device and welding method
InactiveCN120962206AWelding/cutting auxillary devicesAuxillary welding devicesProduction lineThermodynamics
The invention relates to the technical field of preheating welding devices, and provides a steel member preheating welding device and a welding method.The steel member preheating welding device comprises a mounting mechanism, a welding mechanism and a guiding and positioning mechanism, an intermittent transmission chain scraper conveyor conducts intermittent conveying on a clamping mechanism, and when the clamping mechanism is in a shutdown state, the welding mechanism conducts welding on the clamping mechanism; and a guide rail of the guiding and positioning mechanism comprises an inclined rail and a transverse rail, and when an inserting rod moves downwards along the inclined rail, the welding mechanism is driven to accurately descend to a welding seam position. Zero-error matching of the welding station and the conveying takt is achieved through mechanical linkage, manual adjustment time is eliminated, the procedure interval is shortened, and the production line continuity is remarkably improved. The pure mechanical tripping design is realized, the sensor or motor driving is not needed, and the reset response is fast. The full-process cooperation of preheating, conveying, positioning, welding and resetting is achieved through a pure mechanical structure, and the continuity and continuity of welding work are achieved.
Owner:HUBEI ANEDE CONSTR SYST CO LTD
Rotary positioning, weighing and stacking device for cold-cut rubber sheets
The invention relates to the technical field of rubber processing, in particular to a rotary positioning, weighing and stacking device for cold-cut rubber sheets, which comprises a movable base frame comprising a base body, a frame bottom plate and an electric telescopic rod, the base body and the frame bottom plate are in sliding connection, the electric telescopic rod drives the base body to move horizontally, and a mechanical arm is fixedly arranged on the base body; the pallet base component group comprises a top plate, a bottom plate and a bottom plate; the top of the top plate is provided with a bearing pallet; and the wagon balance assembly is used for weighing the load of the top plate. Through a pure mechanical linkage mechanism formed by a lower gear piece, a vertical lead screw piece and the like, switching and resetting of a top plate support between a weighing assembly and a bearing assembly are automatically achieved through rotation action, continuous and stable supporting is guaranteed accurately and synchronously through a gear, a rack and the like, meanwhile, an electric telescopic rod of a movable base frame drives a mechanical arm to avoid, and the mechanical arm is fixed. And the space interference with the rotary pallet is solved.
Owner:BAIHONG MASCH (SHANGHAI) CO LTD
Detection device for spring
The invention relates to the technical field of spring detection, in particular to a detection device for a spring. Comprising an inspection frame, a rotating motor, a PLC, a multidirectional motion platform, a clamping frame and a carrying platform, the inspection frame is connected with a moving frame through a first linear transmission module, the moving frame is provided with a multi-degree-of-freedom vibration platform, the multi-degree-of-freedom vibration platform is connected with a horizontal sliding seat which synchronously, horizontally and vertically moves, and the reciprocating stroke of the horizontal sliding seat periodically changes. The horizontal sliding seat and the carrying platform are both connected with the multi-direction moving platform, two electric push rods are connected between the clamping frame and the carrying platform, a clamping driving piece is arranged on the clamping frame, two symmetrically-arranged clamps are connected to the clamping driving piece, and a driven clamping seat is rotationally installed on one clamp. Through the linkage design of the clamping frame, the electric push rod, the conversion frame, the multidirectional motion platform and the PLC, the problem that mechanical detection and appearance detection of an existing spring detection device are scattered is solved.
Owner:YANTAI EXCELLENCE ELECTRONIC HARDWARE CO LTD
Compact collapsible folding space enclosure with telescopic lifting central structure
A collapsible space enclosure system is disclosed, designed for efficient transport and deployment in the field of mechanical engineering. The system described addresses the technical problem of cumbersome and inefficient collapsible structures by providing a system that integrates a telescopic lifting central section with an upper and lower portion for balanced vertical retraction and extension. The system includes folding panels connected to the central structure, configured to fold in two for compact shipment. Actuators enable continuous 360° rotation and balanced vertical movement. Parallelogram linkage assemblies facilitate simultaneous lateral retraction and vertical lifting. Retractable strut channel assemblies allow for the installation of add-on retractable spaces, increasing floor area. This system is particularly useful for military, commercial, and recreational applications, offering a streamlined and versatile solution for rapid deployment and compact storage.
Owner:SHARPTON GEORGE
Anti-crushing seat massage mechanism
The utility model relates to the field of automobile seat structures, and particularly discloses an anti-crushing seat massage mechanism which is characterized in that a driving assembly comprises a base, a movable seat and a driving motor, a massage assembly is connected with the movable seat through a linkage assembly, when the movable seat ascends and descends, the massage assembly works, and a collapse assembly comprises a locking spring and a clamping block. The upper ends of the clamping blocks rotate on the base in a limited mode, the lower ends of the clamping blocks are fixedly connected with one end of the locking spring, the two clamping blocks are distributed in a splayed mode, the fixed end of the driving motor is fixedly connected with the base, the output end of the driving motor is fixedly provided with a movable block, the movable block is arranged between the upper ends of the two clamping blocks, and the bottom end of the movable block abuts against the clamping blocks. And the included angle between the clamping blocks is increased. According to the utility model, the massage rod can automatically retract when being subjected to impact force, the crumple assembly prevents huge impact of external force from hurting a human body through the massage head, the use safety of a mechanical massage structure is realized, and the internal structure is protected at the same time.
Owner:FAURECIA WUXI SEATING COMPONENTS +1
Self-adjusting socket for lower limb prosthesis
The present disclosure describes self-adjusting sockets for lower limb prostheses in which each step transmits motion to a resilient resistive element coupled to an actuator configured to cycle between a rest position and an actuated position. The resistive element can transmit the motion to the actuator to cycle the actuator. Each cycle of the actuator acts through a mechanical linkage to tighten the socket around the residuum, until a desired threshold tightness on the residuum is reached. After the threshold tightness is reached, the resistive element yields and absorbs the motion rather than transmitting the motion, so that the actuator ceases to cycle on each step, preventing further tightening beyond the threshold.
Owner:VESSL PROSTHETICS INC
Outer spiral machining equipment for pressing screw of oil press
The invention relates to the field of turning equipment, and discloses oil press pressing screw outer spiral machining equipment which comprises a rack base, an embedded stabilizing mechanism is located on an operation sliding table, and the embedded stabilizing mechanism is matched with an external rotary drum and a distribution guide rail of a guide roller shaft to be used for conducting circumferential clamping along the interior of a pressing screw blank. The linear traction mechanism is located on the center guide groove table, and the synchronous switching mechanism is located on the rack base and used for fixing thread groove cutting tools and synchronously switching the tools in cooperation with the side sliding table, the regulation and control screw rod, the linear opposite grooves of the center guide groove table and the U-shaped guide grooves of the linkage guide groove table. Synchronous clamping, fixing and rotating of two sets of pressing screw blanks are achieved through a concentric clamping mechanism and an opposite output mechanism which are symmetrically designed, double-station external spiral cutting is completed at a time in cooperation with a synchronous switching mechanism driven by linear traction, a mechanical structure that a center gear is in linkage with upper and lower opposite racks is adopted, strict synchronous movement of the clamping mechanisms on the two sides is ensured, and the working efficiency is improved. Machining errors caused by single-side stress are avoided, and meanwhile the power input requirement is simplified.
Owner:四川青江机器股份有限公司
Punching device for C-shaped steel machining
The utility model relates to the technical field of anti-seismic support and hanger machining equipment, in particular to a punching device for C-shaped steel machining, which comprises a mounting frame, a base fixedly mounted on the lower portion of the interior of the mounting frame, a hydraulic cylinder fixedly mounted on the mounting frame and located above the base, and a punch piece fixedly mounted at the output end of the hydraulic cylinder. A sliding area is formed in a punching area of the punch piece, a filing piece is longitudinally arranged in the sliding area in a sliding mode, and two adjusting assemblies used for controlling the sliding area to slide are symmetrically arranged at the position, located at the top end of the filing piece, of the sliding area. Through the arrangement of the filing part, the adjusting assembly and the touch assembly, continuous actions of punching and deburring are achieved in the same punching stroke through mechanical linkage of the punch part and the filing part, continuous micro-amplitude disturbance can be generated on the hole wall in the punching return stroke stage through low-frequency shaking of the punch part, hole diameter shrinkage caused by material springback is counteracted, and the punching precision is improved. And high-frequency micro-impact can be generated on the hole wall, so that a composite effect of sliding cutting and vibration crushing is formed.
Owner:FASHIDA (DALIAN) IND GRP CO LTD
Worm key dimension precision detection device and detection method
The invention relates to the technical field of worm size detection, and discloses a worm key size precision detection device and a detection method, the worm key size precision detection device comprises a detection table, the detection table is provided with a detection box used for detecting a worm, and the detection box is internally provided with a feeding assembly used for driving the worm to move. According to the scheme, flexible positioning and mechanical linkage design is adopted, and an efficient and accurate detection process is achieved. The core lies in that the feeding assembly and the positioning structure cooperatively operate, on one hand, a worm can adjust the position in a self-adaptive mode through an elastic floating mechanism, and stable clamping is ensured through cooperation with a multi-direction rolling contact system; and on the other hand, the moving part is combined with hydraulic drive to achieve horizontal conveying, meanwhile, gear and rack transmission is converted into vertical positioning, and therefore the worm can be accurately positioned in the conveying process. And meanwhile, the scheme also comprises multiple anti-separation mechanisms, so that the operation reliability is ensured, the operation convenience and the process stability are both considered in the overall design, and an efficient solution is provided for worm detection.
Owner:WUXI NTI MEASURING TECH CO LTD
Connecting rod type stepless variable pitch clamping jaw
The invention relates to a connecting rod type stepless variable-pitch clamping jaw which comprises a track base plate, a motor fixing plate installed on the track base plate through a fixing vertical plate, a servo motor installed on the motor fixing plate, a second gear driven by the servo motor, a first gear meshed with the second gear and a rotating disc synchronously rotating with the first gear. The turntable is positioned between the track substrate and the motor fixing plate; the servo motor drives the second gear and the first gear and drives the rotary disc to rotate, and then the supporting hook is pushed through the connecting rod to do radial linear motion along the linear guide rail through the sliding block. The mechanical lifting structure can easily bear crystal ingots within 8 kg, and the problem that heavy objects cannot be carried through vacuum adsorption is solved. By means of the unique annular synchronous groove mechanism, the movement consistency of the multiple supporting hooks is guaranteed, positioning is accurate, and the clamping or deviation risk is avoided.
Owner:SUZHOU DELPHI LASER
Wall body detection device for architectural design
ActiveCN120740533AApparatus for force/torque/work measurementMechanical measuring arrangementsPressure transmissionLinkage (mechanical)
The invention discloses a wall detection device for architectural design, and relates to the technical field of wall detection, the wall detection device comprises a detection main frame body, a first motor and a second motor are symmetrically mounted on the upper surface of the bottom of the detection main frame body, and output shafts of the first motor and the second motor are fixedly connected with a lifting mechanism; the wall detection device for architectural design further comprises a pressure gauge and three contact wheels which are arranged in an arc shape to form an integral contact surface, the transverse moving mechanism is linked with the lifting mechanism to perform multi-area detection on the wall, and when the pressure adjusting mechanism performs movement detection in the vertical and horizontal directions, the pressure adjusting mechanism can adjust the pressure in the vertical and horizontal directions. The abutting wheels conduct abutting type elastic pressure self-adjustment on the radian of the wall and feed pressure elasticity back to the pressure gauge, the auxiliary deformation mechanism is matched with the radian through elastic deformation of the center and the abutting wheels on the two sides, and the comprehensive pressure of the abutting wheels on the wall is transmitted to the pressure gauge. The multi-dimensional cooperative detection optimization effect of a mechanical structure, pressure feedback and motion control is achieved.
Owner:SICHUAN LEDAO ZHITONG CONSTRUCTION ENGINEERING CO LTD
Integrated equipment for synchronously chamfering inner and outer blades of cable protection pipe
An integrated device for synchronously chamfering inner and outer blades of a cable protection pipe belongs to the technical field of protection pipe port finishing, and comprises two groups of cutters, a cut-in assembly and a circumferential rotating assembly, the two groups of cutters are obliquely arranged relative to the inner and outer side edges of the cable protection pipe, and the inclination angle range is set to be 45-60 degrees; the cutting-in assembly drives the two sets of cutters to obliquely cut in the edges of the inner side and the outer side of the cable protection pipe, and the cutters are bent in the direction of obliquely cutting in the edges of the cable protection pipe. Synchronous chamfering of inner and outer blades is achieved through the two sets of inclined cutters, traditional machining problems are solved, and precision and efficiency are improved; the cutter design is optimized, machining stability is guaranteed, the service life is prolonged, the angle depth can be independently adjusted, materials with multiple requirements can be adapted, and the cutter changing cost is reduced; according to the equipment, full-automatic operation is achieved through mechanical pushing and sensing linkage, an induction piece can be adjusted and locked, the depth is controlled to be consistent, assembly stability is guaranteed through cooperation of an assembly and a multi-caliber supporting system, and the universality, precision and efficiency of the equipment are greatly improved as a whole.
Owner:DANDONG QIANYANG ELECTRIC POWER TELECOMM EQUIP CO LTD
Gravity compensation method for mechanical arm
The invention provides a gravity compensation method of a mechanical arm, which comprises the following steps: when a deflection joint motor is at different deflection joint angles, controlling a parallel linkage joint to do reciprocating constant-speed motion, and collecting output torque data of a parallel joint motor in real time; carrying out optimization processing on the collected output torque data to obtain a gravity baseline data set of the parallel linkage joints; according to the gravity baseline data set, calculating a compensation gravitational torque for gravity compensation of the parallel linkage joint; the technical problems that in the prior art, a dynamic modeling method not only needs accurate mechanical parameters and a complex calculation process, but also needs a large amount of experimental data to calibrate a calculation result, and the cost and time consumption in the compensation torque calculation process are increased are solved. Therefore, the response time of the mechanical arm to the external environment change is prolonged, and the compensation effect of the compensation torque is further affected.
Owner:NINGBO RUIDA MEDICAL INSTR CO LTD
Gear shaper suitable for ultra-large tooth width machining
A gear shaper suitable for ultra-large tooth width machining comprises a lathe bed, a stand column, a cutter shaft and a workbench, a servo motor is adopted to drive a ball screw to serve as a main movement system, and a cutter rest sliding plate is driven to achieve accurate up-down reciprocating motion; the cutter shaft is rigidly connected with the sliding plate through an end face bearing and supported by hydrostatic bearings at the two ends, and the supporting distance L is larger than or equal to the tooth width * 2.5. The tool rest transmission system is integrated on the sliding plate and drives the tool shaft to rotate through a worm and gear pair. The radial feeding system drives a sliding seat to move through a servo motor and a ball screw; a workbench independent cutter relieving mechanism is innovatively adopted, and a servo motor drives a ball screw to achieve precise cutter relieving motion. According to the design, a traditional hydraulic system is abandoned, through a modularized multi-axis linkage structure, the mechanical layout is remarkably simplified, the machining precision and efficiency are improved, and the technical blank of large-modulus and ultra-long-tooth-width gear machining equipment is filled up.
Owner:ZHEJIANG LAOLUNSI MACHINE TOOL
Prospective control method for multi-axis linkage machine tool
The invention relates to a prospective control method of a multi-axis linkage machine tool in the field of intelligent manufacturing, which comprises the following steps: by analyzing the time difference distribution of each axis in a compensation time sequence, establishing a dynamic compensation matrix of multi-axis linkage, the matrix comprising the advanced starting time and speed regulation coefficient of each axis in different motion stages, determining personalized motion control parameters of each axis; according to the updated delay characteristic data and the curvature radius information of the track corner, the position deviation trend of each axis in the corner machining process is predicted, whether the motion time sequence of each axis needs to be adjusted or not is judged by comparing the deviation degree of the predicted position and the theoretical track, and an optimized multi-axis cooperative motion instruction is obtained; and the optimized multi-axis cooperative motion instruction is input into a servo controller of each axis, an actual position feedback signal of each axis is monitored at the same time, and the response consistency of each axis is ensured by calculating the real-time deviation value of an actual track and a theoretical track and dynamically correcting compensation parameters in an electromechanical coupling delay model.
Owner:DONGGUAN JIYOU CNC EQUIP CO LTD
Intelligent deviation rectifying belt conveyor
The invention relates to the technical field of conveyors, and discloses an intelligent deviation rectifying belt conveyor which is characterized in that mounting plates are arranged at the upper end of a conveying frame at equal intervals; a middle supporting roller assembly, side supporting roller assemblies in transmission connection with the two sides of the middle supporting roller assembly and side bracket roller assemblies in transmission connection with the tail ends of the side supporting roller assemblies are arranged at the upper end of the middle of the mounting plate. A driving motor is mounted at the middle lower end of the mounting plate; the position sensors are used for continuously monitoring the edge position of the conveying belt, precisely judging the deviation direction and degree, controlling the driving motor to adjust the side edge supporting roller assembly and then being in linkage with the side edge bracket roller assembly to incline, and deviation correction according to needs is achieved through mechanical precise adjustment. And damage to the conveying belt caused by excessive operation is avoided. According to the deviation rectifying device, the surfaces of the side carrier rollers can be lubricated while deviation rectifying is conducted on the conveying belt, deviation rectifying, namely lubrication is achieved, manual operation is not needed, and lubrication omission is avoided.
Owner:ZHEJIANG BAOKE MACHINERY
Hub bearing and machining process thereof
The embodiment of the invention provides a hub bearing and a machining process thereof, and relates to the technical field of hub bearings. The hub bearing comprises an outer ring, a fixing ring, an inner ring and a flange, the outer ring is mounted on the circumferential outer wall of the inner ring, double rows of raceways are arranged in the outer ring, balls are mounted in the raceways through retainers, one end of the outer ring is connected with the fixing ring, one end of the inner ring is connected with the flange, and a gap between the outer ring and one end of the inner ring is sealed through a sealing ring. A gap between the other ends of the outer ring and the inner ring is sealed through a sealing adjusting mechanism which is installed on the inner ring. Dynamic self-adaptive sealing adjustment is achieved through a mechanical linkage structure of the floating ring, the lever arm and the sealing push ring, slope positioning matching and guide limiting design are combined, it is ensured that sealing pressure is automatically matched along with working conditions and evenly attached to a sealing groove, meanwhile, abrasion resistance and operation stability are improved, the sealing life is remarkably prolonged, and the overall reliability is remarkably improved.
Owner:MAGFA (SHANGHAI) TECHNOLOGY CO LTD
Detection system for action state of mechanical connecting rod of ground isolating knife switch in electric power GIS (Geographic Information System)
According to the detection system for the action state of the mechanical connecting rod of the isolating knife switch in the electric power GIS system provided by the invention, multi-dimensional monitoring on the action state of the mechanical connecting rod of the isolating knife switch and the grounding knife switch is realized through cooperative configuration of the mechanical state sensing unit and the electrical state sensing unit; the limitation that a traditional method only takes a single-phase state as a criterion is effectively solved. And the data analysis processing unit can perform comprehensive correlation analysis on the connection state, the action synchronism and the driving load condition of the mechanical connecting rod through fusion processing of the visual image information, the position signal and the electrical parameters of the motor, so that the accuracy and the reliability of state diagnosis are remarkably improved. And the early warning output unit outputs graded early warning information based on the severity of the diagnosis result, so that operation and maintenance personnel can identify abnormal phases and fault causes in time, thereby realizing early warning and accurate positioning of potential faults of the mechanical connecting rod, and greatly improving the operation safety and maintenance efficiency of the electric power GIS system.
Owner:GUODIAN DADU RIVER JINCHUAN HYDROPOWER CONSTR CO LTD
Fault diagnosis method and system based on electro-hydraulic linkage
The invention relates to the technical field of mechanical engineering and automatic control, discloses a fault diagnosis method and system based on electro-hydraulic linkage, and aims to solve the problems that diagnosis models are mismatched, early weak faults are difficult to extract and fault root positioning is fuzzy due to electrical and hydraulic data modal isomerism and deep fault feature coupling in the prior art. The method comprises the following steps: synchronously acquiring electro-hydraulic multi-source signals; constructing an electro-hydraulic coupling dynamic state space model based on the health data; generating a multi-dimensional residual sequence through a Kalman filter; performing multi-scale wavelet time-frequency decomposition on the residual error and extracting features; analyzing and fusing cross-domain features by using standard correlation; and finally, realizing accurate fault identification through a support vector machine. The system comprises a synchronous acquisition module, a modeling module, a residual error generation module, a feature fusion module and a fault identification module. Through mechanism modeling and data driving fusion, the early fault sensitivity and the coupling fault distinction degree are remarkably improved.
Owner:CHONGQING LANVAL FLUID CONTROL EQUIP CO LTD
Double mechanical arms with chain type driving function
The invention relates to the field of robots, and discloses a chain-driven double mechanical arm which comprises two groups of forking arm structures arranged on a support, and each group of forking arm structure sequentially comprises a forking large arm, a forking small arm arranged at the tail end of the forking large arm and a fork hand arranged at the tail end of the forking small arm; by arranging a three-stage chain linkage system of the chain wheel a, the chain wheel b and the chain wheel c, precise cooperative control between the small arm and the fork hand is achieved. Compared with a traditional structure which depends on multiple servo direct driving, according to the scheme, the number of redundant motors is reduced, the control complexity is lowered, real-time matching of the forearm posture and the end executor can be achieved through unified chain driving, and the response speed and synchronous stability of the multi-joint mechanism in the high-speed dynamic state are effectively improved.
Owner:SIYUE INTELLIGENCE
Vibration suppression method and system for five-axis linkage CNC machining center
The invention belongs to the technical field of mechanical automation control, and particularly relates to a vibration suppression method and system for a five-axis linkage CNC machining center, and the method comprises the following steps: S1, carrying out the system identification of a target machine tool, and obtaining the frequency response characteristics of the target machine tool; s2, virtual cutting simulation is conducted based on the workpiece model and the machining program, and cutting force distribution is obtained; s3, predicting a tremor risk area in the machining process in combination with the frequency response characteristics and the cutting force distribution; s4, optimizing a tool path and a tool posture according to a prediction result so as to avoid tremor; s5, calculating and setting an optimal speed planning parameter under the non-tremor constraint based on the optimized path and the dynamic characteristics of the machine tool; and S6, performing trial processing, collecting actual data, and correcting simulation model parameters to improve subsequent prediction precision. According to the method, the machining program is optimized, cutting simulation is carried out on the machining program, the cutting force distribution condition in the machining process is obtained, tremor prediction is carried out in combination with the workpiece model, and the unreasonable tool posture is optimized.
Owner:GUANGZHOU YIDA TECH CO LTD
Automatic closing-up device for electric supporting rod
The invention provides an electric stay bar automatic closing device which comprises a mounting support, a driving electric cylinder, a linear guide rail and an extrusion mechanism, the linear guide rail is fixed on the mounting support, the extrusion mechanism is connected with the linear guide rail in a vertically movable mode, the driving electric cylinder is located above the extrusion mechanism, and a driving shaft is connected with the extrusion mechanism; one end of the downward-pressing guide cylinder is connected with the electric cylinder driving shaft, the other end of the downward-pressing guide cylinder is connected with the extrusion ring, and the bottom of the extrusion ring is provided with the buckling-pressing limiting positioning block; the automatic tightening and assembling device has the advantage that the electric supporting rod is applied to the automatic tightening and assembling process. The phenomenon that the service life of a product is affected due to inconsistent closing depth of the electric supporting rod is avoided; the internal structure is simple in machinery and is a mechanical linkage mechanism, and the structural stability is high; the automatic tightening and assembling device is installed on a servo transplanting assembly, automatic tightening and assembling of the electric supporting rod are achieved, the labor cost is reduced, and the production efficiency is improved.
Owner:南京思来智能科技有限公司