1141results about How to "Guaranteed to be vertical" patented technology

The invention discloses a spray gun track planning method for a free-form surface spraying robot. According to the spray gun track planning method disclosed by the invention, the characteristic that a numerical control processing process is very similar to the spaying process is utilized, so that the motion track of a spray gun can be obtained by little calculation on the basis of the tool path. The method comprises the following steps of: firstly, dividing the sprayed surface in three-dimensional modeling software into a plurality of areas with regular shape, generating m equidistant tool paths and deriving the equidistant tool paths into standard APT (Automatic Programming Tools) files by using a five-axis numerical control machining method; extracting tool motion information contained in the APT files, extending the obtained tool points, processing the corner parts into circular arc transition to generate a spray gun path point sequence and then solving a spray gun posture sequence on the path point sequence; and interpolating the spray gun posture sequence to generate a complete motion track of the spray gun. According to the spray gun track planning method disclosed by the invention, accurate control over the track of the spray gun can be realized and the high praying quality is ensured; and the spray gun track planning method is simple in calculation process and calculation amount.

The invention discloses a marine sediment sampler, which comprises a guide tail wing, a balancing assembly and a sampling tube with a sampling knife edge. The upper part of the balancing assembly is provided with an air storage chamber, an airflow passage is connected with the air storage chamber and an air vibrator, and an air outlet hole of the air vibrator is communicated with a vertical adjustor; and a valve control system controls a valve on the airflow passage. The upper part of the balancing assembly of the sampler is provided with the air storage chamber, the air vibrator and the vertical adjustor, the sampler has the sampling functions of two samplers of gravity and electric vibration; during vibration sampling, the inclination of the sampler is corrected by using the air discharged by the air vibrator through the vertical adjustor; and the sampler has a simple, compact and reliable structure, does not need a bracket or a chassis, and does not need a power supply cable. Once the sampler is fed, the sampler automatically finishes sampling in a mode of gravity or combination of gravity and vibration according to the property of the marine sediment, and greatly improves the sampling work efficiency.

The invention belongs to the building industry and particularly relates to a full-automatic intelligent wall skin shoveling machine for house upholstery. A double-shaft inclination angle sensor is used for providing input signals for a control device to control a leveling oil cylinder to level a base. A working platform moving rack is matched with a gear shaft of a working platform motor set and a stepping motor to achieve first-level vertical working and moving of a working platform. A working hydraulic cylinder piston rod drives the working platform to move back and forth on a linear guide rail to achieve second-level vertical working and moving of the working platform. A ball screw set drives a cutter set to move at a designated shoveling depth, and therefore a certain shoveling thickness is achieved. A dust collector set collects shoveled dust through a dust washing draught fan. A walking wheel set drives the wall skin shoveling machine to move through a certain distance. The control device controls a cutter and the walking wheel set to shovel on a set plane route, and full-automatic control is achieved.

The invention discloses a scanning device and method of ultrasound elasticity imaging. The scanning device comprises a computer, an ultrasound probe connected to the computer, a support for fixing the ultrasound probe, a motion control device and a depth sensor. The motion control device and the depth sensor are respectively connected to the computer. The support is arranged on the motion control device comprising a three-dimensional motion control mechanism for controlling the ultrasound probe to perform three-dimensional motions and a rotating motion control mechanism for controlling the ultrasound probe to rotate. The three-dimensional motion control mechanism and the rotating motion control mechanism are respectively connected to the computer. The ultrasound probe can be controlled through the three-dimensional motion control mechanism and the rotating motion control mechanism to tightly fit the tissue surface and to be parallel to normal vectors of scanning points during each scanning, so that the ultrasound probe is guaranteed being perpendicular to the scanned tissue surface, and pressure beard by each scanning point is guaranteed being even and constant before and after compressing.

The invention discloses a self-adaptive portable solar photovoltaic power supply system. The solar photovoltaic power supply system comprises a box body and a solar cell panel; a rhombic telescopic lifting connecting rod is arranged on the bottom surface in the box body; the upper end of the lifting connecting rod is connected with a horizontal platform; the platform is connected with a locking mechanism; a vertical rotary shaft is arranged on the platform; the vertical rotary shaft is connected with a driving motor of the vertical rotary shaft; the vertical rotary shaft is connected with a horizontal rotary apparatus arranged on the vertical rotary shaft; the horizontal rotary apparatus comprises a horizontal rotary shaft; the horizontal rotary shaft is connected with a driving motor of the horizontal rotary shaft; the solar cell panel is arranged on the horizontal rotary apparatus; a marker post is arranged on the plane of the solar cell panel; a light sensitive resistor is arranged on the external of the marker post in a circle-shaped encircling manner; and reflectors that can be unfolded and folded are arranged on the two sides of the solar cell panel separately. According to the self-adaptive portable solar photovoltaic power supply system, the solar energy collection, the power generation and the power supply system are integrated in the box body, so that the power supply system is light in structure, portable, easy to maintain, intelligent in the solar energy collection, high in efficiency, diversified in output power supply types, and wide in application range.

The invention discloses an experimental device for comprehensively testing dynamic characteristics of a linear feeding system and belongs to the technical field of machinery manufacturing. The device comprises a single-degree-of-freedom servo feeding mechanism, a longitudinal loading mechanism, a gantry frame, a transverse loading mechanism, a vertical loading mechanism, a friction loading mechanism and an inertia matching mechanism, wherein the single-degree-of-freedom servo feeding mechanism controls the position of a worktable; the longitudinal loading mechanism controls amplitude and direction of longitudinal loading force; the transverse loading mechanism controls amplitude of transverse loading force; the vertical loading mechanism controls amplitude of vertical loading force; the friction loading mechanism controls application of a friction load; and inertia matching mechanism can research inertia matching characteristics. The device is reasonable and compact in structure, convenient to maintain and wide in application range, can simulate a longitudinal load, a transverse load, a vertical load, torque and a composite load at any position of the worktable and accurately controls the loading force.

The invention relates to a five-axis optical aspheric surface detection device driven by a linear motor, in particular relating to a surface-shaped detection device of an optical aspheric surface component. The five-axis optical aspheric surface detection device provided by the invention comprises X / Y / Z-axis linear motors, X / Y / Z-axis linear guide rails, a base, X / Y / Z-axis workbenches, a strut, a cross beam, A / C-axis workbenches, a measuring head fixed base, a measuring head and A / C-axis DD (direct drive)motors, wherein the X / Y / Z-axis workbenches are driven by the X / Y / Z-axis linear motors; the X-axis workbench is positioned on the base; the A-axis workbench is driven by the A-axis DD motor; the C-axis workbench is driven by the C-axis DD motor; the C-axis DD motor is positioned on the X-axis workbench; the C-axis DD motor can move back and forth along with the X-axis workbench; the Z-axis workbench is positioned on the Y-axis workbench; the A-axis DD motor is positioned on the Z-axis workbench; and the A-axis DD motor can move left and right or up and down along with the Y-axis workbench and the Z-axis workbench. The five-axis optical aspheric surface detection device provided by the invention can adjust the relative position of the measuring head and the surface of a workpiece through the linkage of five axes so as to ensure the measuring head to be perpendicular to the surface of the workpiece.

The invention provides a fruit ripeness ultrasonic non-destructive detection method and system based on a comparison method. The method comprises the following steps of: conducting training and learning on fruit, dividing grades for fruit ripeness through training and learning results, and establishing fruit ripeness models and optimum measurement frequency of target fruit; really measuring the target fruit, and acquiring two characteristic values of the target fruit, i.e. attenuation ratio and transmission speed; and comparing the target fruit with the fruit models obtained from training and learning to obtain ripeness degree. The system comprises a fruit detection module, an acoustic range measurement module, an information processing module and a control and display module, wherein the control and display module is connected with the information processing module and the acoustic range measurement module, the information processing module is connected with the fruit detection module, and meanwhile, the fruit detection module is connected with the acoustic range measurement module. The method and the system, which are provided by the invention, can realize non-destructive detection, do not require manual judgment and have the advantages of being simple to realize, easy to operate and wide in application range.

The invention discloses an agricultural product lotus root slice processing automatic production line which comprises a lotus root section feeding device, a lotus root section slicing mechanism, a lotus root slice cleaning device, a turning device, a blanching device, a critic acid solution tank, a lotus root slice stirring device and a lotus root slice sequencing and sorting device. According tothe agricultural product lotus root slice processing automatic production line disclosed by the invention, only lotus root sections are manually put into the lotus root section feeding device, primarily cleaning and sequentially feeding lotus root sections can be automatically finished by equipment, the lotus root sections can be automatically sliced and automatically conveyed into lotus root slice cleaning equipment, cleaning of the lotus root slices can be automatically finished by equipment, the lotus root slices are automatically conveyed to the blanching device for blanching, the lotus root slices after blenching are automatically conveyed to the critic acid solution tank, the lotus root slices are automatically conveyed to the lotus root slice stirring device, complete lotus root slices can be automatically screened out later, and the lotus root slices can be automatically separated according to size; thus, the lotus root slices can be conveniently packaged in a concentrated mode; furthermore, labor is saved, and a production efficiency is improved.

The invention discloses a clay bar vertical splitter. A splitting front brick conveying belt, a cutter device and a first splitter rear brick conveying belt are sequentially arranged along the longitudinal direction of a stander; the first splitter front brick conveying belt is supported by a pair of rollers; roller shafts are provided with coders which are in signal connection with a control center; the cutter device is provided with guide posts arranged along two longitudinal sides of the stander; the guide posts are sleeved with cutting frame sliding sleeves which are provided with steel wires through cutting vertical racks; the stander is provided with two groups of motor reducers controlled by the control center, wherein one group of the motor reducers drive the cutting frame sliding sleeve to move through driving devices, while the other group drives a guide sliding sleeve to move up and down through a crank connecting rod mechanism; and a cutting frame sliding sleeve resetting air cylinder is arranged between the stander and the cutting frame sliding sleeve. The cutter device is synchronous with extruded clay bars, and the cutting steel wires can stop extruded the clay bars from traveling at the moment of cutting off the steel wires.

The invention discloses a device for detecting a dynamic property of a parallel waist recovery training device. The device for detecting the dynamic property comprises an aluminum alloy section framework, pneumatic manual muscles, a slide pair, a waist band, servo motors, winding drums, a fixed pulley, cables, and a standing platform; the middle part of the aluminum alloy section framework supports four pneumatic manual muscles, and the pneumatic manual muscles drive the slide pair connected with a ball hinge to move, so that the recovery waist band connected with the slide pair drives the waist part of a waist patient to perform the recovery training exercise of front bending, back stretching, and cross bowing. Air inlet pipe end openings of the pneumatic manual muscles are respectively equipped with four pressure sensors, and air outlet end openings are respectively equipped with four flow sensors; four laser distance measuring sensors are respectively installed on the planes of upper and lower end openings. Four servo motors are fixed on the bottom plate of the aluminum alloy section framework, and four servo motors drive four winding drums to rotate respectively, so that four cables on the four winding drums are tensioned; four tension sensors are respectively installed on the cables.

The invention discloses a honeycomb catalyst production mechanical arm with the automatic stacking function. The honeycomb catalyst production mechanical arm comprises a cutting mechanism, a conveying mechanism and a mechanical arm mechanism. The mechanical arm mechanism comprises a mechanical arm framework, a mechanical arm rail, a rail sliding block and a mechanical arm body. The mechanical arm rail is located on the top of the mechanical arm framework and sleeved with the rail sliding block, and the mechanical arm body is connected to the position below the rail sliding block. A second servo motor is arranged at the upper end of the mechanical arm body and connected with a second lead screw, the mechanical arm body is controlled to rise and fall through the second lead screw, and the second lead screw is sleeved with a second lead screw nut. The continuously-extruded honeycomb ceramic catalyst wet blanks can be cut into single blank bodies in order in a length-fixed mode, and it can be guaranteed that incisions are vertical and square. The cut blank bodies can be automatically stacked, so that labor cost is lowered, and meanwhile working efficiency is greatly improved.

The invention relates to a spatial point three dimension coordinate measuring method based on rotation sector laser angle measurement. The spatial point three dimension coordinate measuring method based on the rotation sector laser angle measurement uses a spatial point three dimension coordinate measuring system. The spatial point three dimension coordinate measuring system is composed of a sector laser emission end, a sector laser receiving end and a task computer, wherein the sector laser emission end comprises a sector laser emitter which can emit sector lasers capable of rotating around the rotation axis of the sector laser emitter, a sliding platform, a rotation platform and an initial reference, the sector laser receiving end is a sector laser receiver, the position of the sector laser emitter is set as a given point, and the position of the sector laser receiver is set as a spatial point to be measured. During the measurement process, the sector laser emitter emits a beam of the sector lasers which can rotate around the rotation axis of the sector laser emitter from different positions around, the sector laser receiver receives the sector lasers, records related data, and transmits the related data to the task computer, spatial position information of the sector laser receiver can be figured out through related formulas, and then the three dimension coordinate of the spatial point to be measured can be obtained. The spatial point three dimension coordinate measuring method based on the rotation sector laser angle measurement has the advantages of being low in system cost, high in measurement accuracy, and convenient in system building, and furthermore is suitable for various measurement places low in measurement real time request and high in measurement accuracy request.

The invention belongs to the technical field of geometric dimension measurement and specifically relates to a smart laser profiler automatic in leveling and direction adjustment. The smart laser profiler automatic in leveling and direction adjustment comprises an electric revolving stage, a wireless communication module, first and second speed reducing step motors, a bearing block with a bearing, a three-dimensional electronic compass and a laser distance measuring sensor. The smart laser profiler realizes automatic leveling and direction adjustment by means of direction indication of the three-dimensional electronic compass and thereby well solving the problems in the prior art. The laser profiler is capable of measuring the form of the section of a tunnel in real time in tunnel construction to determine back break, and also capable of performing long-term monitoring on the tunnel section form after the completion of tunnel construction; the laser profiler is high in accuracy, simple and convenient to operate, and convenient for reuse after dismounting; and the laser profiler is capable of well performing self-leveling and direction correction for base dislocation and torsion caused by geological changes during tunnel monitoring, and further realizes remote control.

The invention relates to an ultra-deep foundation pit supporting method which comprises a single-row triaxial deep-mixing pile water-stop curtain, bored piles and upright steel posts, wherein the single-row triaxial deep-mixing pile water-stop curtain is lower than natural ground and is arranged along the periphery of a foundation pit in an enclosing way; the bored piles are sequentially arranged at intervals in the foundation pit and located on the inner side of the single-row triaxial deep-mixing pile water-stop curtain; the upright steel posts are arranged in the foundation pit and located on the inner sides of the bored piles; the tops of the bored piles are sequentially connected via reinforced concrete crown beams in a pulling way; reinforced concrete enclosing purlins along the periphery of the foundation pit are arranged in positions, which are not the height positions of floor slabs of underground floors, on the inner sides of the bored piles; the inner sides of the reinforced concrete enclosing purlins are connected in a pulling way via reinforced concrete enclosing purlin beams supported on the upright steel posts; the reinforced concrete enclosing purlin beams are in latticed pulling connection with the reinforced concrete enclosing purlins via a plurality of groups of inner reinforced concrete supports; filling plain concrete is arranged inwards at the bottoms of the bored piles; a baseplate is laid on the foundation pit and enclosed by the filling plain concrete; and more than one post-cast strip with support replacement pieces is arranged on the baseplate.

The invention provides a servo loading device for large deformation wing static test and relates to the technical field of airplanes. The servo loading device comprises a support, a sliding table, a translation driving device, a clamping device, a loading device, a position detection device and a control device, wherein the support can be fixed on the ground; the sliding table is arranged on the support in a sliding manner and located above a wing; the translation driving device is arranged on the support, connected with the sliding table and used for driving the sliding table to move linearlyin the preset direction; the clamping device is used for clamping and fixing the wing; the loading device has a first end and a second end, the first end is hinged to the sliding table, the second end is connected with the clamping device by a connection part, and the loading device is used for towing the wing; the position detection device is used for detecting the position change of the clamping device and sending the displacement information; the control device is used for receiving the displacement information and accordingly controls the translation driving device to drive the sliding table to move linearly in the preset direction so that the connection part can be perpendicular to the wing always.

The invention discloses a thin-wall cylinder modal test system and method for a single-point laser continuous scanning vibration test. The thin-wall cylinder modal test system for the single-point laser continuous scanning vibration test comprises a thin-wall cylinder, a laser vibrometer, a right-angle prism with a 45-degree angle, a vibration exciter and a data acquisition system, wherein the thin-wall cylinder is suspended on a bracket; the right-angle prism with the 45-degree angle is arranged on the thin-wall cylinder center line in the thin-wall cylinder and fixedly arranged at one end of a rotation motion control system; the rotation motion control system is arranged on the end part of a linear motion control system; the linear motion control system is fixedly arranged on the bracket and parallel to the axis of the thin-wall cylinder; a laser head of the laser vibrometer is arranged on the bracket and opposite to the inclined surface of the right-angle prism with the 45-degree angle; the laser vibrometer is connected with the data acquisition system; the laser vibrometer is connected with the thin-wall cylinder by an elastic top rod. The thin-wall cylinder modal test system and method disclosed by the invention have the advantages of high test precision and test efficiency for the thin-wall cylinder vibration modal.

The invention discloses a planar continuous loading testing device for a numerical-control movable worktable, and belongs to the technical field of machine manufacturing. The testing device comprises an analog numerical-control movable worktable, two identical longitudinal loading devices and a transverse loading device. Loading requirements on the magnitude of a transverse load, the magnitude of a longitudinal load and the magnitude of a torque are required to be met by the loading testing device, wherein the magnitude of the transverse load is controlled through a servo motor; the magnitude of the longitudinal load and the magnitude of the torque are jointly controlled through two servo motors; the magnitude of each load is fed back via a pressure sensor; and closed-loop control on the magnitude of loading force is realized by adjusting the compression amount of a loading spring. By the testing device, a one-way longitudinal load, a one-way torque and a combined load of a longitudinal load and a torque in a plane are applied to the movable worktable; and moreover, the magnitude of the loading force can be accurately controlled.

The invention discloses a load correction method applied to undercarriage loading. The method comprises the steps of 101, installing a loading device on an undercarriage; 201, acquiring corresponding test data between the offset, in the heading direction of the undercarriage, at the position where the loading device is connected with the undercarriage and a load multiple times through testing; 301, fitting the test data obtained in the step 201 into a formula by means of the least square method; 401, obtaining the offset, in the heading direction of the undercarriage, at the position where the loading device is connected with the undercarriage according to a preset load by means of the formula obtained in the step 301; 501, adjusting the loading device so as to counteract the offset. In this way, load error generated by an undercarriage loading system is effectively reduced so that the test load error can meet the control requirement, and then the problem that offset exists in the prior art is solved.

The invention discloses a multifunctional three-dimensional laser scanning target. The multifunctional three-dimensional laser scanning target comprises a total station reflection plate, a horizontal platform and a three-dimensional laser scanning ball, wherein the lower end of the total station reflection plate is connected with the upper end of a supporting rod, the total station reflection plate is used for providing a clear target for total station observation, the horizontal platform is arranged in the middle of the supporting rod, a water level is arranged on the horizontal platform, the upper end of the three-dimensional laser scanning ball is connected with the lower end of the supporting rod, the three-dimensional laser scanning ball is used for a three-dimensional laser scanner to determine a central point coordinate of the three-dimensional laser scanning ball, and a fixed distance exists between the center of the three-dimensional laser scanning ball and the central height of the total station reflection plate. The total station reflection plate, the horizontal platform, the three-dimensional laser scanning ball and a supporting rod axis are located on the same straight line. The multifunctional three-dimensional laser scanning target is simple in structure, reasonable in design, convenient to use and operate and low in cost. In addition, the total station reflection plate and the three-dimensional laser scanning ball are combined, the size of an apparatus is decreased, the laser scanning target is convenient to carry, good in practicability and convenient to popularize and apply, and meanwhile the acquisition efficiency and accuracy of data are improved.

The invention relates to a device and method for achieving automatic grabbing and accurate attaching of an aircraft thermal insulation piece. The device comprises an outer frame module, a main shaft module, a normal leveling module, a vision alignment module, a pressure detection module and a suction cup set module. By means of the vision alignment module, the center of the thermal insulation piece and the center of the area where the thermal insulation piece is to be attached can be accurately found, the thermal insulation piece can be accurately attached to a machine body, and accuracy of all attached positions of the thermal insulation piece is ensured. By means of the normal leveling module, the axis of a motor, the center of a corresponding suction cup and the curved surface normal of the thermal insulation piece accurately coincide, and therefore tension and pressure can coincide with the normal of the thermal insulation piece all the time, and it is ensured that the force direction is perpendicular to the outer surface of the thermal insulation piece all the time when attachment and adhesion detection are conducted; the force, in the axial direction, of the motor is detected in real time through the pressure detection module, and therefore accurate and closed-loop control over loading of the motor is achieved; and by means of the suction cup set module, flexible design and adjustment of the diameter, the number and positions of suction cups are achieved according to requirements, and thermal insulation pieces of different sizes and irregular shapes are grabbed.

The invention discloses a blade detection method based on line structured light, and the method comprises the steps: firstly carrying out the calibration of the pose of a line structured light profilometer for collecting data, carrying out the calibration of a rotatable turntable surface for installing a to-be-detected blade, and reducing the errors caused by the installation of a detection device; secondly, taking a reference surface A and a reference surface B of the to-be-measured blade as calibration references, calibrating a blade axis, calibrating a reference surface C of the to-be-measured blade; calibrating the Z axis of the rotary table according to the front edge characteristics of the blades; finally, establishing a global coordinate system through the Z axis of the rotary tableand the to-be-measured blade datum plane C. Compared with a traditional detection method, the blade detection method provided by the invention has the advantages that the measurement efficiency is high, the precision of the measured data is high, and the information of a plurality of sections of the blade can be obtained.

The invention relates to an intelligent solar nursing robot adopting laser for remote charging. Wheel steering motors are arranged at the bottom of a supporting frame of the nursing robot, a wheel bracket is arranged below each wheel steering motor, a wheel rotating motor is arranged in each wheel bracket, a wheel is arranged on each wheel rotating motor, fixing seat lifting air cylinders are arranged below the supporting frame, and a fixing seat is arranged at the ends of the fixing seat lifting air cylinders. Main lifting air cylinders and an electric control box are arranged on the supporting frame, a master control motor is arranged on a supporting plate which is arranged on the main lifting air cylinders, and the master control motor and a body support are connected through side connection supports. A solar panel fixing support is connected with a solar panel rotating motor, and a solar panel is arranged on the solar panel fixing support. Pushing air cylinders are arranged on the body support, a head rotating motor is arranged on a moving support which is arranged on the pushing air cylinders, a signal transceiver is arranged at the top of a rotating head which is arranged on the head rotating motor, arm supports is connected with the body support and a moving support plate, and a moving shovel plate is arranged in front of the moving support plate. The intelligent solar nursing robot adopting laser for remote charging is functional powerful and can be remotely charged by laser before energy of a storage battery runs out.

The invention relates to a crossed column assembling machine which comprises a drive device, a pre-centring device, a host machine, a hydraulic system and an electrical control system. The crossed column assembling machine is characterized in that a base in the host machine is fixed on the ground, and four vertical columns are vertically installed at four corners of the base; four corners of an upper cross beam and a lifting beam are respectively provided with holes corresponding to the vertical columns; the vertical columns penetrate through the holes; the upper cross beam is fixed on the vertical columns, and the lifting beam can be freely lifted up and down on the vertical columns; a cylinder body of an upper press oil cylinder is fixed on the upper cross beam, and the piston rod end of the upper press oil cylinder is connected with the lifting beam; an upper press wheel and an upper positioning and clamping mechanism are installed on the lower surface of the lifting beam; a lower positioning mechanism and a lower clamping mechanism are respectively connected with a lifting mechanism installed on the base and lifted by the control of the lifting mechanism; and a drive roller is installed on the base by a bearing assembly and used for carrying H-shaped steel. The invention has skillful and reasonable structure, realizes the assembling mechanization of a crossed column, improves the manufacture quality and the manufacture efficiency of the crossed column and lowers the labor intensity.

In a fastener driving tool, a carrier for holding a plurality of fasteners comprises a plurality of sleeves, each sleeve holding an associated fastener. Each sleeve has a body with an axis and a bore, the bore extending axially through the body and the bore being for receiving the associated fastener. A set of compressible ribs is also included within the bore of the sleeve for gripping a shank of the associated fastener so that the associated fastener is positioned substantially in the axial direction of the sleeve when the fastener is driven. Each rib has a curved portion that is concave with respect to the bore.

A device for measuring the flexural rigidity of a structural member in the high-low temperature environments comprises a laser measuring set, air floating devices, a lifting device, a moving beam, high-low temperature resistant pulling ropes and the like. The moving beam is arranged on the lifting device in a sleeved mode. The two sets of air floating devices are arranged. Each air floating shaft is fixed to the moving beam through an air floating bearing seat. Each air floating shaft is sleeved with an air floating sleeve. The member to be measured is installed on an installation base of the member to be measured in a high-low temperature box. Each high-low temperature resistant pulling rope vertically penetrates through a through hole in the top of the high-low temperature box and is connected with one air floating sleeve and the member to be measured. The laser measuring set is fixed to the outer side of the high-low temperature box and opposite to an observation window in the side face of the high-low temperature box in position. According to the device for measuring the flexural rigidity of the structural member in the high-low temperature environments, force is exerted through the high-low temperature resistant pulling ropes, the arm of force is obtained through the air floating devices, the direction of the acting force is guaranteed through the air floating devices, the tension of each rope is measured through a force sensor, angular deformation is obtained through the laser measuring set, all data are transmitted through a wireless data transmission module, and therefore a bending moment-angular deformation curve of the flexural rigidity of the member to be measured is accurately obtained.

The invention relates to the technical field of alignment control of pre-assembled segmental beams in bridge engineering, in particular to a method for controlling alignment of pre-fabricated segmental beams based on a short-line matching method. The method comprises the following steps: S1, performing on-site data measurement; S2, establishing a local global coordinate conversion system; S3, n-1# block 6 control point measured local coordinates are converted into measured global coordinates data; S4, deviation analysis is performed on the -1 # block; S5, determining the coupling angle of n-1 #two end axis and performing decoupling; S6, calculating the correction coordinates of the I end of the n # block; S7, judging whether the adjustment is made to the n + 1 # block; S8, judging whether there is deviation in the construction of the n # block, and if so, adjusting the positioning point of the I end section of the n + 1 # block; S9, obtaining the local coordinate data of the six control points when the n # block is used as the matching block to prefabricate the n + 1 # block through the global-local coordinate conversion, which has the beneficial effect that the real beam block axis deviation angle can be obtained, and the calculation accuracy of the corrected coordinate of the prefabricated beam block is improved.

Through adjusting gear, CCD camera and zoom lens are connected; and through lens clamp, CCD camera and zoom lens are fixed on fixation adjustment device for camera and microscope. Through bolt, the camera and microscope is connected to the connection base plate in z-axis. The connection base plate in z-axis is fixed on a nut in z-axis. Through screw thread, transmission shaft in z-axis is connected to the nut in z-axis. Through bearing seats, the fixed transmission shaft is connected to horizontal transmission shaft through helical beval gear. Rotating handwheel installed on the horizontal transmission shaft makes transmission shaft in z-axis rotate so that nut and the connection base plate are moved along guide rail in z direction up and down.

The invention relates to automation equipment used for a line winding procedure during fishing pole production. The technical problems of inaccurate line winding positions, low product quality, low automation degree, low efficiency and severe dependence on skilled workers, which result from the existing manual operation of workers on a line winding procedure during fishing pole production with simple tools are solved. The automation equipment comprises a base, a control panel, a translation mechanism, a sliding table, a rotating driving mechanism, a support base, a line conveying mechanism and a radial laser locating device, wherein the translation mechanism is connected with the base, the sliding table is connected with the translation mechanism, the rotating driving mechanism is connected with the sliding table, the support base is connected with the sliding table, the line conveying mechanism is connected with the base, and the radial laser locating device is connected with the line conveying mechanism. The automation equipment can be used for the line winding link in the production process of fishing poles.

The invention discloses an electroslag fusion casting manufacturing method for an annular plate of a hydraulic generator. The method is characterized by comprising the following steps of: 1) controlling slag systems and slag amount; 2) igniting; 3) selecting a crystallizer; 4) rotating the crystallizer by using a control system; 5) selecting power supply parameters; 6) controlling casting alloy components after fusion casting; and 7) selecting a casting thermal processing process. A near-net-shape forming annular plate manufacturing technology is provided for producing annular anti-tear steel plates for hydraulic generator seat rings, top covers and bottom rings at present; a rotatable crystallizer is used for electroslag fusion casting formation, so that technical requirements on production of the annular plate are met; and the produced annular plate has high laminated tearing resistance, higher fatigue resistance and higher crack generation and expansion resistance, and the quality and the performance of the annular plate are not lower than those of a specially-forged product which is made of the same material as that of the annular plate.