156 results about "Ball screw drive" patented technology

The invention discloses a wear state and precision degradation prediction method for a ball screw drive system, and the method comprises the steps: employing a dual-label obtaining strategy, and constructing a'strong label + weak label 'mixed label sequence covering a whole life cycle; mapping a macroscopic working condition into a contact interface micromechanical state quantity, and converting a time domain signal into a travel domain / space domain stable sequence by adopting equal travel synchronous resampling, so as to weaken the influence of speed fluctuation on feature extraction; a double-flow physical guidance neural network is further constructed, and a physical attention mechanism is introduced to realize data feature and physical prior fusion; training is completed based on supervision loss and physical consistency constraint, and online recursive correction is carried out by using sparse laser interferometer calibration data. By adopting the method, the prediction deviation caused by equipment aging and working condition change can be reduced, and stable prediction of the wear state and the repeated positioning error degradation trend is realized.

The invention relates to the technical field of aluminum alloy die-casting, and discloses a high-silicon aluminum alloy die-casting device which comprises a workbench and further comprises a mounting frame connected to the top of the workbench, a die-casting mechanism arranged on the mounting frame, a placing frame arranged on the top of the workbench, a die mounted in the placing frame through bolts, an ejection mechanism arranged on the workbench, and a die-casting mechanism arranged on the workbench. And the temperature control mechanism is arranged at the top of the workbench and used for preheating and cooling the die. In the ejection mechanism, when a ball screw ascends to eject a workpiece, a large gear and a small gear are driven to rotate through ball transmission of a ball sleeve and the ball screw, so that a first rotating rod drives a knocking block to knock the two sides of a mold, and meanwhile, a surrounding sleeve and a lifting rod drive a knocking plate to swing to knock the bottom of the mold; the adsorption force between the workpiece and the mold is destroyed through mechanical knocking, the workpiece is prevented from deforming or remaining during ejection, and manual intervention is reduced.

The utility model relates to the technical field of motion platforms, in particular to a differential screw rigid-flexible coupling motion platform. In order to solve the problems that although a rigid-flexible coupling motion platform can reduce friction and improve precision, a flexible hinge is easy to vibrate, and lead, driving precision and load capacity of ball screw driving in a motion platform driving mode are mutually restricted, the following technical scheme is provided: the rigid-flexible coupling motion platform comprises a base, and the base is arranged in a box shape with an opening in the top; the driving mechanism is mounted in the base; the synchronous plate, the positioning plate and the motor plate are arranged above the base; the adjusting assembly is installed below the synchronous plate, the positioning plate and the motor plate and used for finely adjusting the distance between the synchronous plate and the positioning plate, and the moving end of the driving mechanism is connected with the positioning plate. The application efficiency of the motion platform in industrial production and scientific research can be improved, the increasing requirements for high precision and high stability are met, and the motion platform has important practical significance and application value.

The invention relates to the technical field of electric power accessories, in particular to electronic connector end grinding equipment which comprises a storage mechanism used for bearing an electronic connector and functional assemblies. The adsorption fixing mechanism is mounted on the storage mechanism and is used for fixing an electronic connector; the grinding mechanism is arranged on one side of the storage mechanism, and the grinding mechanism comprises a driving assembly, a rough grinding assembly and a fine grinding assembly. A strain gauge type pressure sensor is used for detecting the contact pressure between a grinding roller and an end in real time, and after a signal is fed back to a control system, the grinding roller is driven to rotate; the servo motor drives the sleeve and the grinding roller to finely adjust the feeding amount through the ball screw, the grinding pressure is stabilized within a reasonable range, excessive end grinding or material damage caused by too large pressure is effectively avoided, meanwhile, surface defect residues caused by too small pressure are prevented, and the rough grinding precision and the product consistency are remarkably improved.

The invention provides an intelligent pipe connecting device in pipe jacking and pulling construction and a construction method, and belongs to the technical field of trenchless pipeline construction. The intelligent pipe connecting device comprises an intelligent clamping mechanism, a laser centering module, a movable centering mechanism, a sealing enhancing mechanism, an online detection module and a ground remote monitoring module; the intelligent clamping mechanism comprises a self-adaptive hydraulic clamp, and a pressure sensor is arranged in the self-adaptive hydraulic clamp; the laser centering module comprises a cross laser transmitter and a high-precision CCD visual module; the movable centering mechanism comprises a ball screw driven by a servo motor and a multi-stage hydraulic jack; the sealing enhancing mechanism comprises a self-sealing joint and a hydraulic pressing device, and inverted tooth threads are arranged in the self-sealing joint; the online detection module comprises an air pressure sensor and a leakage detection camera; full-automatic pipe connection is achieved by integrating the intelligent clamping module, the laser centering module, the automatic moving module, the sealing enhancing module and the like, manual well descending operation is effectively avoided, construction safety is guaranteed, and the butt joint precision is improved.

The utility model relates to the technical field of metal production and processing, and discloses a straightening device capable of accurately controlling the rolling reduction of an aluminum-clad steel wire, which comprises a rack and an arranged outer frame seat, a PLC (Programmable Logic Controller) is arranged on the front side of the rack, and a touch screen is connected above the PLC; a ball screw is additionally arranged at the top of an inner cavity of the servo motor, and the surface of the ball screw is sleeved with a movable pressing block; a lower pressing roller is additionally arranged below the upper pressing roller and connected with the left side and the right side of the inner wall of the outer frame base, and a pressure sensor is installed on the upper surface of the upper pressing roller. According to the straightening device capable of accurately controlling the rolling reduction of the aluminum-clad steel wire, a pressure value is set through a touch screen, a PLC receives a signal of a pressure sensor, a servo motor is controlled to operate according to the preset pressure value, the servo motor drives a ball screw to rotate on an outer frame seat, and the ball screw drives a movable pressing block to move up and down; and the upper compression roller is matched with the lower compression roller to accurately control the rolling reduction of the aluminum-clad steel wire.

The present application provides a rail holding locking mechanism, a locking docking mechanism and a rail hanging robot. The rail hanging robot can travel along a walking guide rail, and a charging base station is arranged along the line. The rail holding locking mechanism comprises a driving mechanism including a ball screw, a driving motor and a horizontal sliding table driven by the ball screw; a connecting rod mechanism fixed to the horizontal sliding table of the driving mechanism; a sliding lifting mechanism installed at the center of the connecting rod mechanism and connected to the connecting rod mechanism; and a clamping centering mechanism, wherein the clamping centering mechanism comprises a positioning block fixed to the top end of the connecting rod mechanism and a positioning groove fixed to the bottom side of the parking fixed beam of the charging base station, and when the horizontal sliding table is driven to move to the center of the rail holding locking mechanism, the driving mechanism drives the top end of the connecting rod mechanism to move to the center, so that the positioning block of the clamping centering mechanism tightly holds the positioning groove to form a lock, and the sliding lifting mechanism vertically moves upward.

This utility model discloses an automatic electrolyte injection machine for soft-pack batteries, relating to the field of lithium battery manufacturing technology. It includes a frame, an injection mechanism, a flaring mechanism, a turntable mechanism, and a centering clamping mechanism. The injection mechanism drives the injection plate to rise and fall via a lifting module. The injection tube is equipped with an independent quantitative injection pump and a coaxial nitrogen injection pipe, achieving precise electrolyte injection and oxidation protection. The flaring mechanism uses a vacuum suction cup to adsorb the battery opening, and a ball screw drives the flaring plate to open and close laterally. The centering clamping mechanism uses an elastic buffer component and a pressure sensor to adaptively clamp the battery, avoiding damage to the aluminum-plastic film. The turntable mechanism is driven by a direct-drive motor to rotate the positioning turntable in increments, enabling continuous operation with multiple stations. This utility model integrates nitrogen protection, residual liquid adsorption, and flexible clamping functions, solving the problems of low efficiency, poor injection accuracy, and contamination risk of traditional equipment. It is suitable for mass production of high-consistency soft-pack batteries.

This utility model relates to a double-acting arc-extinguishing chamber based on ball screw transmission, including a housing, a moving contact and a stationary contact disposed within the housing, a ball screw rotatably disposed within the housing, a first fixed block fixedly connected to the moving contact, and a second fixed block fixedly connected to the stationary contact. One end of the ball screw is connected to a drive device. The ball screw has a first threaded section and a second threaded section with opposite directions of rotation. The first fixed block is threadedly connected to the first threaded section, and the second fixed block is threadedly connected to the second threaded section. A first guide rail is fixedly disposed on the housing, slidingly engaging with the first fixed block, and a second guide rail is slidably engaged with the second fixed block. This utility model, through ball screw transmission, converts rotational motion into linear motion of the first and second fixed blocks, realizing the opposite or opposite movements of the moving and stationary contacts, improving the closing and opening speeds of the arc-extinguishing chamber, shortening the breaking time, and effectively improving the breaking capacity of the circuit breaker.

The utility model discloses a full servo high -speed punch groove machine with tangential straight line chute punch -stamping structure, including punch press bottom plate, index seat and tablet seat, inside one end of punch press bottom plate is installed with bearing seat, and one end of bearing seat is installed with first servo motor, the output shaft of first servo motor is connected with ball screw drive, and ball screw is installed inside punch press bottom plate, the utility model discloses, when processing, drive ball screw to rotate through first servo motor, cooperate nut seat to drive index seat whole left and right translation, synchronously drive fixed silicon steel sheet on index shaft to translate, and then adjust the punch groove position of silicon steel sheet, and this design makes full use of the inside space of index seat and punch press bottom plate, does not need to adjust the thickness of workstation board, gives the maximum spacing between workstation board and punch head, and is convenient for mould replacement and robot silicon steel sheet taking and placing, and the workstation board of fixed installation helps to improve the punch groove precision.

Featuring an anti-rotation device: at least one locking element (2) provided on a moving element configured to move longitudinally without rotation and projecting outwards in a radial direction from the surface of the moving element at at least one point, and at least one guide element (5) having a groove and configured to be arranged in a recess of an enclosure of the moving element such that its groove is arranged substantially parallel to the longitudinal axis of the moving element, and to guide the protruding part of the locking element (2) in its groove during longitudinal movement of the moving element, wherein the at least one guide element (5) is designed such that it has no degree of freedom along the longitudinal axis of the groove, but at least the rotational degree of freedom about an axis parallel to the longitudinal axis of the groove.

This application involves a suspended ball screw vehicle box extension mechanism, including an extendable box, a load-bearing plate, a carrying box, a support frame, a modular guide assembly, and a ball screw drive assembly. The extendable box is set at the opening of the vehicle body, with corresponding carrying boxes below the relative side walls. The load-bearing plate is fixed on the carrying box, the modular guide assembly is fixed on one side to the support frame and on the other side to the load-bearing plate, and the ball screw drive assembly is fixed to the support frame and load-bearing plate. The carrying box has a long slot at the bottom, allowing it to slide along the lower end of the support frame. This application can achieve the extension and retraction of the vehicle body, increasing the usable space within the vehicle.

A tensioning module for an electromechanical wheel brake and to an electromechanical brake device comprises a stop bearing washer; an axial bearing; and a ball screw drive. The the ball screw drive comprises a spindle and a nut. The stop bearing washer is arranged at an axial end of a radial extension of the spindle, An anti-rotation safeguard arranged between the nut and a housing surrounding the tensioning module. The tensioning module is used to move a brake piston in the electromechanically operable wheel brake of a motor vehicle.

The utility model relates to the technical field of wood processing, in particular to a planing and drilling integrated device for wood, which comprises a base and a conveyor belt arranged on the upper end face of the base, a planing component is arranged at the upper end of the base, and the planing component comprises four groups of mutually symmetrical adjusting seats arranged at the upper end of the base. When the wood is conveyed to the lower end of the square frame, a conveying belt is closed, a first motor is started, a first ball screw drives a first ball screw sleeve to slide downwards till the wood is located at the middle end of the square frame, a first air cylinder is started to extend, four sets of planing cutters are all attached to the outer wall of the wood, and a second motor is started to drive a second ball screw sleeve to slide; the first air cylinder drives the planing cutters to slide along the surface of wood to grind and cut the wood, the four sets of planing cutters can cut multiple edges of the wood at the same time, the wood processing efficiency is improved, and the wood cutting time is saved.

The invention discloses a mold opening and closing stroke control method of an electric injection molding machine, which comprises the following steps: S1, acquiring key geometric parameters of a toggle rod system in a five-hinge-point inclined double-toggle mold closing mechanism, and adjusting main variable conditions of a mechanism kinematic chain based on theoretical formulas of a movable mold plate stroke (Sm) and a ball screw driving stroke (So), data association points between the driving stroke of the ball screw and the stroke of the movable template are obtained; s2, constructing a function mapping model between a moving template stroke (Sm) and a ball screw driving stroke (So) according to the data obtained in the step S1, and forming a fitting expression in a form of Sm = f (So); and S3, establishing a reverse fitting function, and forming function mapping of So = (Sm). Reverse control is realized by precisely fitting the relationship between the template and the stroke of the ball screw, so that errors caused by using an interpolation method are reduced, the system control precision in the mold opening and closing process is improved, the calculation efficiency is greatly improved, the storage space is saved, and the cost is further reduced.

A kind of ball screw drive error compensation method based on composite integral control, due to the influence of manufacturing and assembly error and other factors, ball screw system has certain error and deviation, in order to reduce the influence on the precision and performance of machine tool system, a kind of error compensation method of composite integral control is designed, considering the influence of friction, stiffness, lead error and elastic deformation, first, the corresponding model is established to estimate the corresponding factors;Second, by designing integral sliding surface and error observer to reduce the error in ball screw composite control system and improve the anti-interference ability of system, ensure the stability of closed-loop system, can effectively reduce the error of ball screw drive, has robustness to the change of friction, cutting force and other interference.

A ball screw drive, in particular for an actuator of a hydraulic brake system, includes two spindle drive elements, namely a threaded spindle and a spindle nut which can be rotated relative to the threaded spindle. One of the spindle drive elements is provided as a rotatable drive element, and the second spindle drive element is provided as an output element which can be moved in a secured manner against rotation. The ball screw drive additionally includes a damping element that is configured as an annular element concentric relative to a central axis of the threaded spindle. The annular element is rigidly connected to one of the two spindle drive elements, and can be simultaneously rotated and moved relative to the other spindle drive element in a play-free manner.

The utility model discloses a steel pipe inner diameter detection device with an adjustable limiting structure, which relates to the technical field of pipeline detection devices and comprises a cylindrical main shell, and a limiting assembly with an adjustable extension range is arranged in the cylindrical main shell. According to the steel pipe inner diameter detection device with the adjustable limiting structure, by arranging a servo motor, a motor fixing plate, a ball screw, an optical axis, a screw sliding block, a hinge seat, an extension arm, a limiting groove, a driving wheel, a driving motor, a movable groove and a limiting pin shaft, when the steel pipe inner diameter detection device is used, the servo motor drives the ball screw to rotate, the ball screw drives the screw sliding block to move rightwards, and the screw sliding block is driven to move rightwards; the extension arm extends outwards by taking the limiting pin shaft as a fulcrum, the driving motor drives the driving wheel to continuously rotate through the belt pulley, and the equipment rapidly advances in the pipeline and can adapt to pipelines of different sizes, so that the laser distance measuring sensor can conveniently collect inner diameter information, and the functions of adjusting the size and adapting to the pipe diameter are realized; the problem that the device does not have the function of adjusting the size to adapt to the pipe diameter is solved.

The utility model discloses an automatic welding slag cleaning device for a main welding seam of H-shaped steel. The automatic welding slag cleaning device comprises a welding slag cleaning mechanism and a distance adjusting mechanism, the welding slag cleaning mechanism comprises a welding slag cleaning base, a welding slag cleaning motor is fixed to the welding slag cleaning base, a rotating disc shaft inserted into the welding slag cleaning base is sleeved with a rotating disc, the welding slag cleaning motor is in transmission connection with the rotating disc through a welding slag cleaning transmission mechanism, one end of a rocker is fixed to the rotating disc, and the other end of the rocker is fixedly connected with an impact shaft. The distance adjusting mechanism comprises a distance adjusting base, a distance adjusting motor is fixed to one end of the distance adjusting base, a ball screw transmission mechanism is fixed to the distance adjusting base, and the ball screw transmission mechanism is connected with the distance adjusting motor and driven by the distance adjusting motor. And a screw rod sliding table on the ball screw rod transmission mechanism is fixedly connected with the welding slag cleaning base. The device disclosed by the utility model is reasonable in structural design, capable of realizing mechanical slag removal, high in operation efficiency and good in application prospect.

The utility model relates to a small-size electric actuator. The small-size electric actuator comprises a driving motor, a small synchronous belt pulley connected with the driving motor, a large synchronous belt pulley connected with the small synchronous belt pulley, a ball screw connected with the large synchronous belt pulley, and a screw nut connected with the ball screw, the output guide sleeve is connected with the lead screw nut; the output connecting block is connected with the output guide sleeve; the driving motor is used for driving the small synchronous belt pulley to rotate, the small synchronous belt pulley is used for driving the large synchronous belt pulley to rotate through a synchronous belt, the large synchronous belt pulley is used for driving the ball screw to rotate, and the ball screw is used for driving the lead screw nut to move linearly. The lead screw nut is used for driving the output guide sleeve to move linearly, and the output guide sleeve is used for driving the output connecting block to move linearly. The small-size electric actuator is simple in structure, small in occupied space and low in production and manufacturing cost.

The invention relates to the technical field of laser marking, and discloses an overturning clamp type new energy automobile electronic control module shell laser marking device which comprises a workbench, a housing, a moving structure, a marking assembly, a fixing structure, an overturning structure and a protection structure. The moving structure drives a ball screw through a first motor to drive a shell to accurately move to a marking station, the fixing structure adopts a second motor to drive a double-screw linkage clamping plate to achieve middle clamping of the shell, and a limiting structure is arranged in the clamping plate to synchronously complete up-down limiting and flexible protection through mechanical linkage. The overturning structure achieves automatic overturning of the shell by means of air cylinder lifting and meshing of a gear and a rack, the protection structure carries out closed protection on the marking head through splicing of multiple sets of baffles, and the production efficiency and the marking quality are improved.

The utility model discloses an automatic springback work fixture, which relates to the technical field of work fixtures and comprises a base, a clamping strip, a clamping head and a horizontal reciprocating springback adjusting component. According to the utility model, the clamping strip can normally slide on the top of the base, the clamping heads can move along with the clamping strip, and the two clamping heads are matched to clamp the electric connector; when the electric connector is placed between the two clamping heads, the clamping heads drive the lead screw nuts to horizontally move and slide through the connecting rods, when the two lead screw nuts horizontally slide, the ball screw can be driven to rotate, and the ball screw drives the contraction coil spring to conduct compression treatment. Under the elastic support of the contraction coil spring, the electric connector is elastically clamped and fixed; when the electric connector is taken out from the position between the two clamping heads, the contraction coil spring rebounds to drive the ball screw to rotate in the opposite direction, the two lead screw nuts drive the clamping strips and the clamping heads to rebound and reset through the connecting rods, and operation is convenient and fast.

The invention relates to a method for connecting a power housing and a motor housing of an electromechanical brake device (01), in particular for use in a motor vehicle. The power housing (02) is designed to at least partly receive a screw drive (03), preferably a ball screw drive, and the motor housing (04) is designed to receive an electric drive motor together with a transmission unit (06), preferably a motor worm, which meshes with the screw drive (03) in a connected state. The power housing (02) and the motor housing (04) are brought into a connecting position in which material of the motor housing (04) is molded from the outside into a groove (07), which is formed in the outer surface (08) of the motor housing (02), in order to form a form-fitting connection.

The utility model relates to a ball screw durability detection device, which comprises a driving mechanism, a chuck, a nut fixing assembly, a sliding block and a sliding rail, and is characterized in that the driving mechanism is connected with the chuck and drives the chuck to rotate; the nut fixing assembly and the sliding block are fixedly installed together, and the sliding block is connected to the sliding rail in a sliding mode. A lead screw nut is detachably and fixedly clamped in the nut fixing assembly. One end of a ball screw to be detected is fixedly clamped by the chuck, the other end of the ball screw to be detected is screwed into a screw nut in the nut fixing assembly, and the screw nut is in threaded connection with the ball screw. The driving mechanism drives the chuck to rotate, the chuck drives the ball screw to rotate, the ball screw drives the lead screw nut to move back and forth on the ball screw, and the lead screw nut drives the nut fixing assembly and the sliding block to move back and forth on the sliding rail in the reciprocating movement process. Therefore, the durability of the ball screw can be detected.

The utility model relates to the technical field of transportation equipment, in particular to a gas cylinder transportation vehicle. The trolley comprises two main trolley frames, wherein three first connecting plates are fixedly mounted on the two main trolley frames; the rear side walls of the two ends of the main frame are in transmission connection with a rear frame through pin shafts; by arranging a first folding rod, a second folding rod and a clamping plate, the joint of the first folding rod and the second folding rod is forcibly lifted upwards, the first folding rod and the second folding rod are folded together under the action of a pin shaft, and then a handle is rotated to drive a two-way ball screw to rotate, so that the clamping plate is folded. The two clamping plates are driven by the two-way ball screw to move towards the center till the clamping plates tightly hold the rear frame and stop rotating, in the moving process of the clamping plates, the clamping plates slide on the sliding rods, and the clamping plates are limited by the sliding rods to move in the horizontal direction; therefore, the main vehicle frame and the rear vehicle frame are folded together, and transfer is convenient when the vehicle goes down to a well for operation.

1. Name of the product in this design: Screw Moving Platform. 2. Purpose of this product design: To assist in the detection of workpieces at different positions by using an imported ball screw driven by a servo motor to move the worktable. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The invention discloses a coal bunker lower opening bunker detecting device and a bunker detecting method thereof. The device comprises a horizontal rotating device, a telescopic arm, a swing arm, an intelligent mine lamp and a controller. The horizontal rotating device is fixed to the side wall of a coal bunker or the top of a roadway and drives the telescopic arm to horizontally rotate. The telescopic arm is driven by a multi-stage ball screw, and synchronous stretching and retracting of multiple sections of arms are achieved. The swing arm is hinged to the tail end of the telescopic arm and can vertically swing; the intelligent miner lamp integrates a camera and a lighting lamp and is installed at the tail end of the swing arm. And the controller wirelessly controls the mechanisms to cooperatively act through the handheld terminal and receives video data. The method comprises the steps of aligning with an observation port, stretching into a coal bunker, adjusting posture scanning and shooting, judging the type and position of the blocked bunker, and recovering the device. According to the system, remote automatic exploration of the interior of the coal bunker is realized, high-risk manual operation is replaced, the shooting range is expanded through three-degree-of-freedom compound motion, the bunker blockage condition is accurately judged, the personnel safety is guaranteed, and the inspection efficiency and accuracy are improved.

The invention discloses a spindle swing head and rotary table five-axis gantry drilling machine, and belongs to the technical field of drilling machines, the spindle swing head and rotary table five-axis gantry drilling machine comprises a machine frame, a plurality of sets of footstands are arranged at the bottom of the machine frame, first supporting frames are symmetrically arranged on the two sides of the machine frame, and Y-axis driving assemblies matched with the first supporting frames for use are arranged on second supporting frames; the outer side of the second supporting frame is slidably connected with an X-axis fixing sliding plate, and the X-axis fixing sliding plate is provided with an X-axis driving assembly used in cooperation with the second supporting frame. The Y-axis servo motor and the X-axis servo motor are matched with the gears and the racks through the speed reducers for meshing transmission, stable and accurate movement in the X-axis direction and the Y-axis direction is achieved, the Z-axis servo motor drives the ball screw transmission mechanism, rotary motion can be stably converted into linear motion, the high-speed main shaft is driven to accurately feed up and down, and the precision of the high-speed main shaft is improved. The drilling machining quality is effectively guaranteed through multi-link accurate cooperation, and the error problem of traditional machining is avoided.

The application discloses a connecting device of a low-temperature reheater convenient to disassemble and assemble, relates to the technical field of reheaters and comprises first supporting columns and second supporting columns, wherein the number of the first supporting columns is two and the number of the second supporting columns is two. Through cooperation of the screw nut sleeve and the roller, when the pipeline is disassembled, a user can drive the third ball screw to rotate by rotating the rotating wheel, so that the third ball screw drives the screw nut sleeve, the mounting rod and the roller to move upwards, so that the whole pipeline can slowly move upwards by a certain distance, then the user can pull one end of the pipeline, so that the bottom of the pipeline can be smoothly taken out along the roller, thereby reducing the friction between the bottom of the pipeline and the mounting plate, prolonging the service life of the pipeline, and reducing the strength required by the user to pull the pipeline through the sliding of the roller and the bottom of the pipeline, thereby facilitating the user to disassemble and assemble the pipeline.