360 results about "Ball screw drive" patented technology

The invention belongs to the technical field of electric cylinders, particularly relates to an electric cylinder with a lubricating mechanism and a use method, and aims to solve the problems that lubricating grease at a ball screw of an existing electric cylinder is difficult to supplement, and dust and fine impurities on a push rod easily enter a cylinder barrel along with the push rod. The top cover and the bottom cover are fixedly connected through a plurality of bolts, and a cavity is formed between the top cover and the bottom cover; the cylinder barrel is fixed to the top of the top cover, a push rod is slidably connected into the cylinder barrel, a front hinge lug is fixed to the top end of the push rod, and a lead screw nut is fixed into the push rod. And meanwhile, intermittent lubrication can be carried out on the cylinder barrel, the push rod, the ball screw and the rotating bearing under the action of a third through hole and a U-shaped oil conveying channel, the operation stability is improved, and the link of manual intervention is reduced.

The invention discloses a high-precision three-degree-of-freedom attitude adjustment platform for a spectrometer, which is based on a simplified design of a Stewart platform and comprises a movable platform, a static platform and a three-degree-of-freedom driving mechanism connected between the movable platform and the static platform. The driving mechanism is composed of three sets of servo electric cylinders, telescopic rods and servo motors and is driven by a ball screw, and posture adjustment of the platform is achieved. According to the platform, a laser interferometer is adopted as a high-precision sensor, a closed-loop feedback control system is combined, and submicron displacement measurement and attitude control are achieved. The platform can achieve translation in the Z-axis direction and rotation around the X axis and the Y axis, the rotation angle can reach + / -15 degrees, and the precision can reach 0.02 mm. According to the invention, the device ensures high precision and stability in a complex working environment, has the characteristics of stable movement, quick response, easy maintenance and the like, and is suitable for the fields of optical experiments, spectral analysis and attitude adjustment and error compensation of precise instruments.

The present invention relates to the technical field of textile fabric detection, and in particular to a device for detecting the air permeability of textile fabrics, including a detection chassis, wherein the detection chassis is provided with an upper cavity and a lower cavity that are connected to each other, a load-bearing bracket is fixedly installed in the lower end of the lower cavity, and a driving motor is fixedly installed on the load-bearing bracket, the detection chassis is provided with a first limiting mechanism for fixing the fabric from the left and right sides through the driving motor, and a load-bearing bracket is symmetrically arranged in the upper cavity. The present invention arranges a ball screw driven to rotate by a driving motor in the detection chassis, and uses the ball screw and a lifting nut to pull the guide block and the guide rod; by arranging a load-bearing bracket that is symmetrical in front and back in the upper cavity, the fabric is clamped and limited from the front and back sides; a supercharger is used to infuse sulfur dioxide gas into the fabric fixed to different degrees, and by observing whether the magenta solution in the reaction tank fades, it is judged whether the sulfur dioxide gas has passed through the fabric.

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 discloses an intelligent polishing machine for stone plate surface polishing. The intelligent polishing machine comprises a workbench, a stone plate rapid clamping mechanism, a grinding mechanism, a cooling mechanism and an intelligent control module. The clamping mechanism is used for locking the stone plate through combination of pneumatic clamping and vacuum adsorption, and multi-directional fixation is realized by adopting an adjustable positioning block and an inclined pressing assembly; the polishing mechanism is composed of a joint arm driven by a ball screw and a polishing disc, the polishing disc integrates an aluminum alloy base layer, a silica gel buffer layer and a diamond polishing layer, and a pressure sensor is arranged at the bottom to detect polishing pressure in real time; the intelligent control module is used for dynamically adjusting the down pressure, the rotating speed and the cooling liquid flow based on sensor feedback, monitoring the surface appearance in combination with a binocular vision camera and generating a three-dimensional polishing path; and an atomization cooling system and a negative pressure dust removal system are synchronously configured. The device has the advantages of high-precision polishing, quick reloading and green production, and is suitable for automatic machining of stones such as marble and granite.

The invention relates to the technical field of motion platforms, in particular to a differential driving and rigid-flexible composite guiding motion platform. The problems that although a rigid-flexible coupling motion platform can reduce friction and improve precision, a flexible hinge is prone to vibration, and the lead, the driving precision and the load capacity of ball screw driving in a motion platform driving mode restrict one another are mainly solved. According to the technical scheme, the device comprises a base with a top opening structure and a driving mechanism installed on the base and further comprises a rigid-flexible composite guide mechanism and a differential lead screw driving unit, and the rigid-flexible composite guide mechanism comprises a flexible platform and a rigid guide assembly for guiding the flexible platform; the flexible platform comprises a mounting frame, a flexible hinge group and an output platform. 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 utility model discloses a vehicle bushing rigidity testing device, and relates to the technical field of automobile part processing, the vehicle bushing rigidity testing device comprises a testboard and a sliding seat, the left side of the top of the testboard is provided with a servo motor, and the output end of the servo motor penetrates through the top of the testboard and is connected with a first ball screw; and a transmission belt is arranged outside the first ball screw, a second ball screw is further connected to the interior of the transmission belt, and screw nuts are connected to the exteriors of the first ball screw and the second ball screw. According to the rigidity testing device for the bushing for the vehicle, a servo motor works to drive a first ball screw to rotate, and the first ball screw drives a transmission belt to drive second ball screws to rotate, so that three groups of screw nuts can respectively move downwards in the vertical direction along the exteriors of the first ball screw and the two second ball screws; in this way, the effect of controlling the three stations under the action of one set of servo motors is achieved, the testing efficiency is improved, and meanwhile the set number of the servo motors is reduced.

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 four-way inner wall grinding device comprises a grinding table, a grinding mechanism is arranged on the grinding table, a liquid guide channel is formed in the upper end of the grinding table, a placing assembly is installed in the middle of the upper end of the liquid guide channel, and a supporting frame is arranged on the outer side of the upper end of the grinding table; the two sides of the top are connected with the placing base through a plurality of fixing bolts, and meanwhile a first washing mechanism is arranged in the placing base. According to the four-way inner wall grinding device with the fluid recovery structure, a bidirectional motor drives a first ball screw to rotate, so that the first ball screw drives a first gear to horizontally move and rotate at the same time, and then the first gear drives a second gear to rotate; and a second gear drives a third gear and a rotating shaft to rotate in a positioning seat at the same time, so that a grinding rod grinds the interiors of the two ends of the four-way joint at the same time while horizontally moving, and therefore the grinding efficiency is improved.

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 utility model provides an atomizing dust-settling device for building engineering construction, which comprises a base, the right side of the upper end of the base is fixedly connected with a water storage tank, the right side of the upper end of the water storage tank is provided with a water inlet, a water pump is fixedly arranged in the water storage tank, and the water outlet of the water pump is fixedly connected with a connecting pipe; a fixing frame is fixedly connected to the left side of the upper end of the base, a lifting mechanism is fixedly connected to the interior of the fixing frame, a rotating mechanism is fixedly connected to the upper end of the lifting mechanism, a storage frame is fixedly connected to the upper end of the rotating mechanism, and a spray head is fixedly installed on the outer side of the storage frame. By arranging the lifting mechanism, a first motor can be started, the first motor drives a ball screw to rotate through a first bevel gear set, meanwhile, the ball screw drives a lifting rod to move through a ball screw sleeve, and the lifting rod drives a storage frame at the upper end to move through a mounting plate; and the spray head is moved to a proper spraying height through the storage frame, so that the device is wider in application range.

A power transmission unit of a single-acting plunger type includes a ball screw, a ball nut driven by the ball screw, and a plunger piston coupled to the ball nut. A block housing at least partially encloses the plunger piston and the ball screw. A plunger chamber is at least partially defined by the block housing and a face of the plunger piston. The plunger chamber is selectively pressurized by reciprocal motion of the plunger piston with respect to the block housing driven by longitudinal motion of the ball nut. An electric motor selectively drives the ball screw to responsively reciprocate the plunger piston within the plunger chamber. A motor housing at least partially encloses the ball nut, the electric motor, and the plunger piston. The motor housing includes a block lip which is crimped to the block housing to maintain the motor housing in relation to the block housing.

The invention belongs to the technical field of calcium carbonate processing, and particularly relates to a batching device for calcium carbonate processing. The side plate is fixedly connected to the top end of the stirring barrel; the supporting columns are fixedly connected to the tops of the side plates; the conveying barrel is fixedly connected to the top of the supporting column; a third motor is started, the third motor drives a bidirectional ball screw to rotate through an output shaft, the bidirectional ball screw drives a blocking plate to move towards the two sides, calcium carbonate falls into a weighing cylinder, at the moment, the weight of the calcium carbonate in the weighing cylinder is monitored through a weighing sensor, and when the monitored weight reaches 90% of a set value, the blocking plate is stopped; a third motor is controlled through a computer system, the third motor drives a bidirectional ball screw to rotate through an output shaft, a plugging plate is driven by the bidirectional ball screw to move towards the center to a gap of 2 cm and stop moving until the monitored weight reaches a set value, the plugging plate is driven by the bidirectional ball screw to move towards the center to a closed state, and the plugging plate is closed. And by setting different states of the plugging plate, the flow can be conveniently controlled in the later discharging period.

The invention relates to the technical field of brake-by-wire systems, in particular to an electronic mechanical brake structure for a brake-by-wire system. The caliper body is mounted on the bracket; the transmission mechanism is located in the support and comprises a driving shaft and a ball screw, one end of the driving shaft is arranged in the ball screw and rotationally connected with the ball screw, the outer wall face of the end, located in the ball screw, of the driving shaft and the inner wall face of the ball screw form a containing cavity, and an elastic assembly for driving the ball screw to move towards the driving shaft is arranged in the containing cavity; according to the invention, the driving shaft is matched with the ball screw, the driving shaft rotates to transmit torque to the ball screw, and the ball screw is pushed towards the driving shaft through the matching of the elastic element and the gasket, so that the ball screw and the driving shaft are matched more tightly, and the axial clearance of the ball screw is eliminated, thereby realizing more precise control.

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 utility model discloses an ultrasonic nondestructive testing platform for metal plates, which relates to the technical field of metal plate detection, and comprises a bottom plate, the top of the bottom plate is fixedly connected with two fixed plates, the ultrasonic nondestructive testing platform for the metal plates is provided with a limiting block, a second ball screw and a first moving block, and an operator rotates a rotating rod, so that the metal plates can be accurately detected. The limiting on the metal plate is relieved, then an operator resets and rotates a second ball screw, the second ball screw drives a limiting block to move downwards, the top end of the limiting block is located in a moving groove, then the output end of a servo motor drives a third ball screw to reset and rotate, and the third ball screw drives a third moving block to move downwards; the two third moving blocks synchronously drive the worktable to move downwards to a proper height, so that a metal plate at the top of the worktable can be conveniently carried or carried to the top of the worktable, and then the height of the worktable is adjusted, so that ultrasonic nondestructive testing can be carried out on the metal plate.

The present invention discloses a ball screw driven mold shifting mechanism, comprising a bracket and a mold shifting device slidably connected to the bracket and a driving mechanism for driving the mold shifting device to slide on the bracket, the driving mechanism comprising a pair of ball screws mounted on the top of the bracket and a pair of servo motors for driving the ball screws to move, the tops of both sides of the mold shifting device are respectively connected to the ball nuts of the ball screws through mold shifting lugs, the top of the bracket is provided with a guide rail matching the mold shifting lug, and the bottom of the mold shifting lug is provided with at least one slider matching the guide rail. The present invention adopts a servo motor to drive the mold shifting device to move forward and backward through a ball screw, and is equipped with support and guidance of a guide rail and a slider, so as to ensure the stability of the mold shifting device, guarantee the stability and reliability of mold opening and closing, and ensure the product molding effect and product quality; at the same time, the ball screw, guide rail and slider are structurally reliable and have a long service life, and do not need to be replaced frequently, thereby reducing production costs and improving production efficiency.

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.

Ball screw drive (1), with a threaded spindle (2), a spindle nut (3), and rolling elements (5), namely balls, arranged between the threaded spindle (2) and the spindle nut (3) in a thread (4), wherein spring elements (8, 9) are also arranged in the thread (4) between stops (6, 7) on the nut side, characterized in that there is at least one setting of the threaded spindle (2) and spindle nut (3), in which the balls (5) and the spring elements (8, 9) are arranged in the thread (4) with play.

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.

A lead screw (1) for a threaded drive (10), in particular a ball screw drive, comprises an inner sleeve (2) and a sleeve-shaped outer part (3) fixedly connected to the inner sleeve and having a screw thread (5), in which the inner sleeve (2) and the outer part (3) are made of different materials. The inner sleeve (2) is shaped in the outer part (3) in a form-locked manner such that the inner sleeve replicates the spindle thread (5).

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.

The invention discloses an X-ray tomography system for cultural relic standing, which is characterized by comprising a rack, a scanning bed body, a guide rail motor, a guide rail and a ball screw, the rack is of an annular structure, and an X-ray source and a linear array detector are arranged on the rack; the rack is located on the guide rail, and the guide rail motor is connected with the rack through the ball screw. The guide rail motor is used for driving the ball screw to drive the rack to translate along the guide rail; the scanning bed body is located in the center of the annular structure, is parallel to the guide rail, and is used for placing a to-be-scanned cultural relic and scanning the cultural relic in the horizontal direction when the rack translates along the guide rail; and when the rack rotates along the cultural relics, the cultural relics are rotationally scanned. The invention relates to a high-energy X-ray tomography system capable of meeting the requirement of non-rotating low-gravity-center placement of cultural relics, and full-view X-ray tomography of the cultural relics in a standing state can be realized.

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 belongs to the technical field of constructional engineering, and particularly relates to a constructional engineering template telescopic fixing support which comprises a bottom plate. A top plate is arranged above the bottom plate; four moving wheels are mounted at the bottom of the bottom plate; a height adjusting assembly is arranged between the bottom plate and the top plate; the height adjusting assembly comprises two first fixing plates fixedly connected to the top of the bottom plate. A two-way ball screw is rotationally connected between the two first fixing plates through a bearing. A bidirectional ball screw is arranged, a crank needs to be rotated, the crank drives the bidirectional ball screw to rotate, the bidirectional ball screw drives a moving block to move in different directions, a ball nut seat is arranged at the joint of the bidirectional ball screw and the moving block, and radial movement of the moving block is guaranteed through the ball nut seat. The moving block drives one end of the rotating rod to move in the opposite direction; when the bottom of the rotating rod moves towards the center at the same time, the height of the rotating rod in the vertical direction is increased, and the device is suitable for high-position supporting.