78 results about "Electronic level" patented technology

The invention relates to the field of industrial vehicle control, in particular to a forklift driving direction control method and system and mechanical equipment. The system comprises a signal acquisition unit, a control unit, an execution unit and a display unit. And a gear handle switch and an electronic level meter of the signal acquisition unit respectively acquire a gear signal and a vehicle body inclination angle signal. A vehicle controller and a motor controller of the control unit dynamically adjust direction switching speed threshold values according to the signals and preset logic, a first threshold value group is adopted during reversing, a second threshold value group is adopted during rampway, and a third threshold value group is adopted under other conditions. A traction motor of the execution unit adjusts the steering direction according to signals of a motor controller. The display unit can be configured with parameters such as a speed threshold value and a ramp triggering angle. According to the control method, the speed threshold value is dynamically adjusted by detecting gear signals and the vehicle body inclination angle, and direction control is achieved. The problems that in the prior art, due to the fact that the speed set value is fixed, reversing impact is large, and hill starting is difficult are solved, and the driving comfort and safety are improved.

The utility model discloses hoisting equipment for building construction, which comprises a base, a hoisting frame is arranged on the upper side of the base, an electric hoist is arranged at the upper end of the left side of the hoisting frame, a loading frame is arranged at the tail end of a hoisting rope in the electric hoist, and the hoisting equipment further comprises a balance mechanism; the balance mechanism comprises a balance shell, a partition plate, a longitudinal balancing weight, a first electronic level meter, a transverse balancing weight and a second electronic level meter, the balance shell is arranged in the middle of the lower side of the object carrying frame, the partition plate is arranged in the balance shell, and the longitudinal balancing weight is slidably connected into a first dovetail groove formed in the upper side of the partition plate. Through the transmission element and the detection element, horizontal inclination detection and horizontal self-adjustment can be automatically carried out on the hoisting part of the building object, so that the building object is always in a horizontal position in the hoisting process, the hoisting stability of the device on the building object is improved, the process is not limited by factors such as a screw rod, use is convenient, and the hoisting stability coverage range is wide.

The present application relates to the technical field of installation and debugging of plate turning machining center, and discloses a large plate turning machining center plate turning precision adjustment method, comprising the following steps: step S1, pad iron pre-installation: installing adjustable pad iron on the back of the workbench base, and installing bottom pad iron on the bottom of the workbench base; step S2, initial adjustment: adjusting the adjustable pad iron to the middle value of the full stroke; adjusting the bottom pad iron to the three-equal-part strength state; ensuring that the foot rod is located at the center of the workbench base hole; and adjusting the adjustable pad iron on the upper end of the workbench base to be close to the two sides, wherein the present application adopts the adjustment sequence from the middle to the two sides and the corresponding upper and lower adjustment sequence, avoids stress concentration, solves the precision deviation problem caused by the chaotic existing adjustment sequence, clearly defines the torque parameters and precision standards of each link, avoids human operation differences, significantly improves the repeated precision, combines multiple detections of the theodolite, collimator and electronic level, sets a three-day continuous re-inspection mechanism, effectively avoids precision drift, and ensures the long-term operation stability of the equipment.

The invention discloses a high-precision guide rail double-tool iterative assembly method which comprises the following steps: coarsely adjusting the flatness of a mounting surface through an electronic level meter, accurately measuring the straightness of a guide rail through an autocollimator, establishing an error separation model for directional correction, and forming a'detection-correction-reinspection 'closed loop. The problems that a traditional method is fuzzy in error recognition and low in trimming efficiency are solved, the method is suitable for high-precision assembling and adjusting of the precise mechanical guide rail, and the assembling precision and efficiency are remarkably improved.

The utility model discloses a metering device convenient to read metering data, which comprises a bottom box, a placing plate, an adjusting mechanism, a threaded ring, a metering cylinder, a motor I, a motor II, an electronic level meter and a controller, the placing plate is arranged at the upper part of the bottom box, the adjusting mechanism is arranged in the bottom box, the metering cylinder is arranged in the threaded ring, and the electronic level meter is arranged in the threaded ring. An electronic level meter is fixedly connected to the front side of the upper portion of the placing plate, and a controller is fixedly connected to the upper end of the front side outside the bottom box. Compared with the prior art, the metering device has the advantages that the adjusting mechanism is arranged, the first arc-shaped frame controls the fixing rod to swing front and back through the first motor, the second arc-shaped frame controls the fixing rod to swing left and right through the second motor, and therefore the metering cylinder can be adjusted at any angle; and the electronic level meter is matched to enable the metering cylinder to keep a horizontal state when the liquid is metered, so that the horizontal balance is automatically adjusted, the reading error is reduced, and the data precision is improved.

The invention relates to the field of automobile mold machining, in particular to a welding device for automobile mold accessory machining. A welding device for machining automobile die accessories comprises a base table, an electronic level meter, a lifting unit, a vertical cylinder and the like. An electronic level meter is arranged on the base station; the base table is connected with a lifting unit; the lifting unit is connected with a vertical cylinder which is a hollow cylinder. The guide column body is preliminarily positioned through the vertical cylinder, after the guide column body makes contact with the mold body, secondary positioning is completed through the four arc-shaped pieces and the four limiting wheels, it is ensured that the guide column body is kept in the vertical state, then the limiting wheels move downwards, the four limiting wheels are clamped, and the guide column body is pressed on the mold body; inclination or displacement of the guide column body in the welding process is effectively avoided, and therefore the situation that the assembling precision of an automobile die is affected by bad die matching is prevented.

The utility model relates to electrical automation equipment technical field, and disclose adjustable angle's electrical automation equipment signal acquisition support, including base, the upper portion of base is provided with adjusting mechanism, adjusting mechanism includes electric revolving stage, the upper surface fixed connection of electric revolving stage has the connecting plate, the upper portion of connecting plate is provided with first double -shaft servo motor and second double -shaft servo motor respectively, the outer surface of first double -shaft servo motor power output end and the outer surface of second double -shaft servo motor power output end are fixedly connected with movable frame together. This adjustable angle's electrical automation equipment signal acquisition support, through first electronic level and first double -shaft servo motor cooperation, can automatically adjust the attitude of movable frame, compensates the unevenness of base mounting surface, through second electronic level and second double -shaft servo motor cooperation, can carry out accurate final level calibration to object table, ensures that signal acquisition equipment is in the best working posture.

The invention relates to the technical field of sensor verification, and particularly discloses an evaporation sensor verification device and method.The device comprises a verification table and a control box, a water storage tank, a test box and a water pump communicating the water storage tank with the test box are arranged in the verification table, the water storage tank is provided with a water level gauge, and the top of the water storage tank is provided with a standard evaporator installation base and a tested evaporator installation base; a control circuit board and an electronic leveling instrument are arranged in the control box, and the circuit board is electrically connected with all the components. The method comprises the steps that the standard evaporator emits 80GHz wave beams to measure the liquid level, the water pump controls the water level change, standard and tested instrument data are synchronously collected, and multiple test points are measured and transmitted to the display screen. The problems that an existing device is low in precision, poor in stability and complex in operation are solved. The radar type standard evaporimeter is adopted to measure the liquid level, errors are reduced, the multiple measured evaporimeter installation bases improve the verification efficiency, and the device is suitable for efficient and accurate verification of the evaporation sensor.

This utility model relates to the field of sheet pile guiding control technology, specifically a straightness control device for U-shaped sheet pile construction. It provides a straightness control device for U-shaped sheet pile construction, including a guide frame, positioning adjustment components, and follow-up limiting components. The guide frame is symmetrically equipped with positioning adjustment components for sheet pile straightness control, and the guide frame is also equipped with follow-up limiting components for assisting in adjusting the sheet pile position. By installing the connecting seat on the extrusion arm end of the pile driver, and using a hoisting method to move the sheet pile and keep it vertical before slowly lowering it; through the linkage control of the limiting wheels, guide rollers, electronic level, and electric push rod, real-time flexible control and adjustment of the sheet pile's sinking posture can be achieved, ensuring its vertical insertion to the specified depth; and for continuous parallel pile driving operations, through the guidance of the guide frame and the adaptive deployment of the limiting wheels, precise alignment and synchronous sinking of adjacent sheet piles can be achieved, thereby effectively improving the construction efficiency and quality of sheet piles.

A device for measuring the eccentric angle of an automobile steering wheel relates to equipment for determining the deviation angle through centering detection of the automobile steering wheel and a front wheel and comprises a sliding groove pulling plate, an electronic level meter and a steering wheel clamping groove, the sliding groove pulling plate comprises a lower pulling plate, a left clamping groove, a right clamping groove, an upper sliding plate and a lower pulling plate plug, and the right clamping groove is fixedly formed in one end of the upper sliding plate; the lower pulling plate is arranged in the lower sliding plate clamping groove in a sliding mode, and a left clamping groove and a lower pulling plate plug are fixedly arranged at the tail end of the lower pulling plate. The electronic level meter comprises an electronic level meter button, an electronic level meter fixing knob and an electronic level meter; the electronic level meter is arranged in the sliding chute of the upper sliding plate in a sliding manner; the steering wheel clamping groove comprises a left clamping groove, a right clamping groove, a clamping screw rod, a steering wheel pressing plate and a screw rod knob; according to the invention, the problems of easy omission of tools, many splicing actions, easy damage of fixed parts and inaccurate eccentricity measurement results in the existing manual simple tool measurement are solved, and the problems of higher cost caused by the need of various devices for measuring the steering wheel by adopting a steering force meter and only measurement of a single type of vehicle steering wheel are solved; the method has the advantages that a single tool is used for measurement, steering wheels of different sizes can be adapted, the steering wheel deviation degree can be visually obtained, and accurate adjustment is facilitated.

The utility model provides a kind of temperature monitoring device for seamless construction of super-long structure, comprising, full brake trolley, fixed support, multidirectional rotating arm, electronic level, infrared thermal imager, controller, first mounting plate, fixed support top installs multidirectional rotating arm, fixed support bottom fixed full brake trolley, multidirectional rotating arm end fixed infrared thermal imager, fixed support is fixed electronic level and first mounting plate, first mounting plate is fixed controller, controller is connected with multidirectional rotating arm, electronic level.The utility model described in the temperature monitoring device for seamless construction of super-long structure realizes infrared thermal imager to obtain temperature data from different angles while conveniently pushing device to the required monitoring position, comprehensively grasps the temperature distribution of seamless structure of super-long structure.

The utility model belongs to the technical field of 3D printing, and particularly relates to a 3D printing platform automatic leveling device which comprises a machine table and a printing platform body installed above the machine table, and leveling mechanisms used for horizontal leveling are arranged at the four corners between the printing platform body and the machine table. The leveling mechanism comprises a lifting mechanism and an electronic level meter which are electrically connected, the lifting mechanism is longitudinally installed between the printing platform body and the machine table, the electronic level meter is installed at the bottom of the printing platform body, and the lifting mechanism enables one corner of the printing platform to be close to or away from one side of the machine table based on lifting. According to the utility model, the four groups of mutually matched electronic level meters and lifting mechanisms are additionally arranged, the levelness of the printing platform body is detected through the electronic level meters, meanwhile, the height of the printing platform body is adjusted through the lifting mechanisms, and after the electronic level meters are leveled, the lifting mechanisms stop lifting, so that the function of automatic leveling of equipment is realized.

The utility model provides an anti-unbalance loading caliper for container loading, which relates to the technical field of loading auxiliary equipment, solves the problems of potential personal safety hazard, inaccurate human eye observation and the like, and comprises an adjusting caliper, an energy storage bin, an electronic level meter and balancing equipment, the energy storage bin is arranged above the adjusting caliper, and the electronic level meter is arranged above the energy storage bin. The electronic level meter is arranged on the side edge of the adjusting caliper, the battery in the energy storage bin is electrically connected with the electronic level meter, and the balancing device is arranged at the other end of the adjusting caliper. When the reach stacker works, the position of the box body in the transverse direction of the truck can be determined directly by judging whether the chain rod leans against the side wall of the truck or not; or a signal lamp of the electronic level meter prompts and judges whether the device is horizontal; balanced loading of the containers can be completed only by one reach stacker driver, the link that personnel climb a truck to confirm is omitted, the unbalance loading problem of container open wagon loading is solved, the operation efficiency is improved, the operation time is saved, and the personal safety problem is avoided.

The invention discloses a subway station guide wall auxiliary construction device and method, and belongs to the field of subway construction.The subway station guide wall auxiliary construction device comprises two formworks corresponding to grooves, adjusting mechanisms are installed on the inner sides of the two formworks, leveling mechanisms are installed in the formworks, and supporting mechanisms are jointly installed on the surfaces of the leveling mechanisms and the surfaces of the adjusting mechanisms; through cooperative use of the devices, the threaded rods, the threaded cylinders and other structures are used for driving the formworks to move and adjusting the distance between the two formworks so that the distance can be better matched with the width of a groove, and after the form of the auxiliary construction device is adjusted based on the leveling mechanism and the adjusting mechanism, the levelness of the formworks is detected according to an electronic level meter; and according to the detection result, a corresponding pneumatic push rod is started to drive one side of an extension plate to move downwards, so that an elastic metal plate is bent, the extension plate rotates to support one side of the template, and the template is always kept horizontal with the inner bottom wall of the groove.

This utility model discloses a casing follow-up device for drilled piles in karst geological conditions, including symmetrically arranged I-beam rails and a moving mechanism located on them. Based on feedback from an electronic level, the lower seat is adjusted to a horizontal state via independently controlled lower hydraulic cylinders. The casing is then lifted by a crane to the center above the upper seat and inserted. A lower clamping mechanism holds the casing, while an upper hydraulic cylinder controls the upper seat to rise. The upper clamping mechanism holds the casing, and the lower clamping mechanism releases it. The upper and lower clamping mechanisms work alternately, with the upper hydraulic cylinder controlling the casing's descent. During casing docking, a servo motor controls the casing's rotation through the meshing of a drive gear and a gear ring seat, ensuring precise docking of the upper and lower casings. After casing construction at one station is completed, the wheel-driven vehicle moves along the I-beam rails to the next station, repeating the above construction process to complete the casing construction.

The invention relates to the technical field of building bridge supporting, in particular to a self-stabilizing multi-point bridge jacking device which comprises a mounting base. According to the self-stabilizing multi-point bridge jacking device, a bottom electronic level meter is arranged on an embedded bottom detection disc on the lower surface of a mounting base, and a top electronic level meter is mounted on the upper surface of a top supporting frame, so that the levelness of the base and the levelness of a supporting surface are monitored; the angle change of the jacking surface can be monitored in real time, so that data are accurately transmitted to a control computer, synchronous control is facilitated, and the operation is more convenient; a main hydraulic ejector rod is inserted into an opening in the upper end of a mounting base, an auxiliary hydraulic stable ejector rod is inserted into an opening in the lower end of a bottom side mounting cylinder, the lifting stroke can be increased, angle adjustment can be conducted according to needs, an independent control mode is adopted, operation is more diversified, and the application range is wider.

The present invention relates to the technical field of projection equipment, and in particular to a method for correcting image distortion of a projector, comprising the following steps: obtaining actual angle parameters of an electronic level on an optical module based on a controller; comparing the actual angle parameters of the optical module with theoretical angle parameters of the optical module based on the controller to obtain an adjustment angle of the optical module; based on the adjustment angle, starting a driving mechanism by the controller to adapt the angle of the optical module to the adjustment angle; after the angle of the optical module is adapted to the adjustment angle, eliminating image distortion and completing distortion calibration. The method reduces the setting of components, thereby reducing the steps of distortion processing and greatly reducing the complexity of adjustment. After the initial adjustment is completed, the controller can also continuously monitor the status of the optical module based on the parameters fed back by the electronic level, so as to adjust its angle at any time, thereby avoiding image distortion when the projector is in use.

The application discloses an automatic leveling device and a control system thereof, and relates to the technical field of automatic control, which comprises a top plate and an adjusting assembly. A controller is arranged at the bottom front end of the top plate, and an electronic level is connected to one side of the controller. The adjusting assembly is arranged at the bottom of the four ends of the top plate. The adjusting assembly comprises a guide rod, a mounting seat, an electric push rod, a pressure sensor, a connecting plate and an infrared distance measuring sensor. When the levelness of the top plate is adjusted, the electronic level detects the inclination angle of the top plate first, and the detection data is read by a data reading unit in the controller. Then, the data is analyzed by a data calculation unit, and the required extension distance of each electric push rod is calculated. The electric push rod is controlled to work through a signal output unit, so that the horizontal angle of the top plate can be automatically adjusted, the top plate can be quickly and accurately leveled, the work efficiency is improved, and the labor cost is reduced.

The utility model relates to the technical field of air conditioner partition plates, and discloses an automatic correction device for air conditioner partition plate installation, which comprises an air conditioner partition plate body, a placing shell is placed at the bottom of the air conditioner partition plate body, a fixing assembly is arranged at the bottom of the placing shell, and a fixing shell is fixedly assembled on the inner wall of the placing shell. A motor is fixedly assembled on the inner wall of the fixing shell, and a lead screw is fixedly assembled on a power output shaft of the motor. When the placing shell is arranged at the bottom of the air conditioner partition plate body, the level of the air conditioner partition plate body is detected through the electronic level meter, and when the level of the air conditioner partition plate body is not in the horizontal plane, the electronic level meter can send signals to the lower set of sensors, so that a connecting plate can apply pressure to a lifting plate when being lifted; the air conditioner partition plate body is driven by the lifting plate to conduct angle adjustment, so that the air conditioner partition plate body is located on the horizontal plane during installation, and the automatic correction effect is achieved.

The utility model belongs to the field of highway construction, specifically relates to a highway engineering original road flat, longitudinal data quick extraction auxiliary device, and the device includes: base, track, measuring device, supporting device, quick -detachable connecting portion and automatic correction device, the side portion mounting of base track, supporting device swing joint is in base, automatic correction device installs in the lower part of base, the bottom of measuring device is provided with the mounting rod, the hole is seted up on base, the lower extreme of mounting rod passes through the hole on base and is connected with automatic correction device, one end of quick -detachable connecting portion is connected with mounting rod, and the other end is connected with supporting device, and the electronic level gauge is installed on measuring device. The device can avoid the influence of inertia or uneven road to equipment when running, can be automatic, keep the accuracy of measurement data.

The invention relates to a high-precision electronic level gauge mechanism, which relates to the technical field of level gauge production and application, and comprises a level gauge main body, a mounting mechanism and a supporting mechanism, the method and the device have the effects of realizing efficient and automatic measurement and high anti-interference performance. The mounting mechanism is arranged at the bottom end of the leveling instrument main body and comprises the mounting base, the mounting cylinder, the movable cavity, the driving mechanism, the bottom cavity and other components, and under mutual cooperation, the mounting cylinder can drive the leveling instrument main body to rotate at the top end of the mounting base, so that the surrounding environment is measured and positioned; the mounting stability between the leveling instrument main body and the mounting cylinder is improved by the driving mechanism in the movable cavity, so that the measurement error caused by inertia swinging in the rotating process of the leveling instrument main body is prevented, the measurement precision is effectively ensured, the anti-interference performance is high, the manual interference can be remarkably reduced, and the measurement precision and the working efficiency are improved.

The utility model discloses a flatness leveling device which comprises a supporting base, a clamp bottom plate is arranged on the supporting base, a spherical groove is formed in the supporting base, a spherical supporting block corresponding to the spherical groove is arranged on the clamp bottom plate, and the spherical supporting block is connected with the spherical groove in a sliding mode. A plurality of electric telescopic rods are arranged on the periphery of the supporting base, the two ends of each electric telescopic rod are hinged to the supporting base and the clamp bottom plate respectively, a plurality of electronic level meters are arranged on the periphery of the plane of the clamp bottom plate, a clamping area is arranged on the clamp bottom plate, and the electronic level meters are located on the outer side of the clamping area. And a controller is arranged in the support, the electric telescopic rod and the electronic level meter are electrically connected with the controller, the clamp bottom plate is automatically leveled, the efficiency is high, and the machining precision of parts is guaranteed.

The utility model relates to the technical field of buildings, and discloses a grooving machine for building walls, which comprises a grooving machine body, a sensor, an electronic level meter and a controller are fixedly assembled on the outer wall of the grooving machine body, a sliding groove is formed in the inner wall of the grooving machine body, a stress assembly is arranged on the inner wall of the sliding groove, and the stress assembly is fixedly assembled on the outer wall of the grooving machine body. A first motor is fixedly assembled on the outer wall of the grooving machine body. When the grooving machine is used for grooving a wall body, a worker places the grooving machine body on the outer wall of the wall body, an electronic level meter is used for detecting the horizontal angle, when the electronic level meter detects that the grooving machine body is in a horizontal state, a moving block can drive a connecting block and a limiting shell to move during moving, and then a controller sends out a signal; and after the second motor receives the signal, the power output shaft rotates, and the second motor drives the grooving cutter to rotate so as to groove the wall body, so that the grooving purpose is achieved.

The invention discloses a novel laser electronic level meter, and belongs to the technical field of horizontal measurement equipment. The control circuit board is integrated with an acceleration gyroscope sensor and an 8-bit or more single-chip microcomputer which realize data interaction; the stepping motor leveling mechanism comprises an X-axis stepping motor, a Y-axis stepping motor and corresponding connecting rods, and the laser emitting assembly is connected with the stepping motors through the connecting rods; the acceleration gyroscope sensor is parallel to the base and located in the center of the aluminum piece support. According to the invention, attitude data are collected through the acceleration gyroscope sensor, the single-chip microcomputer calculates a pitch angle and a roll angle through an attitude fusion algorithm, the stepping motor is driven to adjust the laser emission assembly according to attitude deviation, automatic and accurate leveling is realized, and the leveling precision can reach + / -0.005 degrees. The system has the characteristics of strong anti-interference capability, fast response speed, long service life and high flexibility, and is suitable for scenes of building construction, indoor decoration, precision installation and the like.

The utility model relates to building material installation technical field, and specifically is a kind of building material installation position horizontal calibration device, including shell, the shell top is passed through and is set with through slot, the through slot inside is provided with electronic level, the shell top both ends are provided with liquid level, the shell both ends are set with circular reserved slot, the circular reserved slot inside is provided with radium laser pen;The inside of the shell at through slot side is set with rectangular reserved slot, the rectangular reserved slot inside is provided with stand column;With integrated design, radium laser pen is set in the circular reserved slot of shell both ends, after placing shell on building material installation position, open radium laser pen and irradiate radium laser, can assist personnel to carry out horizontal detection to longer installation surface, electronic level is installed in through slot, when placing shell on building material installation position, can carry out horizontal detection to installation surface, and show inclination angle.

The present disclosure provides a method, system, device and medium for obtaining an answer area and processing electronic homework, the obtaining method comprising: determining a to-be-processed question; obtaining question attribute information of the to-be-processed question; judging whether the to-be-processed question belongs to a handwritten question type based on the question attribute information, and if so, generating a handwritten answer area matching the to-be-processed question in a first preset blank canvas. In the present disclosure, the handwritten questions in the electronic homework can be automatically recognized and the corresponding handwritten answer area can be automatically generated, without human intervention in the process, and all automatic implementation, thereby effectively improving the electronic level of the electronic homework. The handwritten answer area supports displaying the content after stacking different operation layers, making the interaction between different users more convenient and efficient, and also supporting live broadcast, recording and broadcasting of the writing track of different users in the area, and the like. This intelligent solution provides a feasible technical route for large-scale individualized teaching and comprehensively improves the teaching quality.

1. Name of this product design: Electronic Anping Eight-Wire Base. 2. Purpose of this design: For use in the base of an electronic level. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key features: a top view.

The invention discloses an automatic leveling device and a control system thereof, and relates to the technical field of automation control, the automatic leveling device comprises a top plate and adjusting assemblies, a controller is arranged at the front end of the bottom of the top plate, one side of the controller is connected with an electronic level meter, and the adjusting assemblies are arranged at the four ends of the bottom of the top plate; the adjusting assembly comprises a guide rod, a mounting base, an electric push rod, a pressure sensor, a connecting plate and an infrared distance measuring sensor. When the levelness of the top plate is leveled, the electronic level meter detects the inclination angle of the top plate at first, detection data are read by the data reading unit in the controller, then the data are analyzed through the data calculation unit, the telescopic distance needed by each electric push rod is calculated, and the levelness of the top plate is adjusted. And the electric push rod is controlled to work through the signal output unit, so that the horizontal angle of the top plate can be automatically adjusted, the top plate can be quickly and accurately leveled, the working efficiency is improved, and the labor cost is reduced.

The invention provides a high-precision mounting and fixing construction process and structure for a large-tonnage whole stone parapet wall. The construction technology mainly comprises the following steps that firstly, the embedded foundation assembly is installed, specifically, an embedded plate and an anchor bar are welded, and after initial adjustment is conducted through a hydraulic oil cylinder, fine adjustment is conducted through an electronic level meter; secondly, a positioning locking assembly is installed, specifically, a positioning steel bar penetrates through a long round hole in the pre-buried plate and is welded and fixed through perforation plug welding; 3, processing and hoisting the whole stone; 4, three-dimensional dynamic leveling is conducted, specifically, a four-point synchronous jack is started, a laser gradienter is combined for scanning, and fine adjustment is conducted through a stainless steel gasket set; fifthly, seam splicing control is conducted, specifically, the stainless steel datum line with the diameter being 1 mm is tensioned, and every four pieces of stone form a closed-loop correction unit; sixthly, thermal deformation compensation is conducted, wherein a belleville spring and chloroprene rubber pad combined compensator is installed; 7, stress dispersion, wherein C40 non-shrinkage cement-based mortar is laid on the bottom face of the stone; c60 high-strength grouting materials are injected from the side face. The technical problems that in the prior art, a whole stone parapet wall is low in hoisting precision, insufficient in contact and large in abutted seam error are solved.

The application belongs to the technical field of robot calibration, and discloses an auxiliary calibration device for a grinding wheel tool coordinate system and a method thereof. The auxiliary calibration device comprises a posture measuring device and a position calibration device. The posture measuring device comprises a motor-driven screw rod lifting platform arranged on a base through two guide rails, a laser imager and a first convex lens are installed side by side on the lifting platform, and a display and two laser ranging sensors are installed on the base. In addition, the position calibration device comprises mechanical clamps installed on both sides of a bottom plate through two connecting rods, a point light source, an electronic level, a limiting frame and a second convex lens are installed on the bottom plate through a support frame. The application adopts an optical-electric calibration method to avoid contact between a robot tool and a calibration cone, which can not only reduce damage to the tool, but also improve the calibration accuracy, and effectively solves the calibration problem of the grinding wheel tool for the tool coordinate system of the industrial robot.