63results about How to "Guarantee the same position" patented technology

The invention discloses a glass cutting machine which comprises a cutting plate; a slide rail is fixedly arranged on the cutting plate; clamping devices are symmetrically and movably arranged on the slide rail; an operating panel is arranged above glass; a guide rod is symmetrically provided with guide grooves; a fixing device comprises a buffer block; the buffer block is provided with a buffer groove; a limited block is fixedly connected with the buffer block; and an extruding plate is fixedly connected to one end, far from the buffer groove, of an extruding block, and is connected onto the limited block through an extruding spring. According to the glass cutting machine, the built-in clamping devices can ensure that the glass cannot deflect in the cutting process, a cutting knife can perform cutting according to the preset route in a guiding structure, so that the influence on the cutting precision caused by human errors is avoided, the positions of the glass and the cutting knife and the distance between the glass and the cutting knife are relatively fixed, mutual deflection is avoided, the cutting precision is improved, the action force of the cutting knife to the glass is uniform, and glass breakage due to non-uniform stress is avoided.

The invention discloses nondestructive testing equipment. The nondestructive testing equipment is mounted on an aerial work platform 5 for crimping; the equipment comprises an X-ray pulse device, a digital flat panel detector 7 and a plurality of upright post groups, the X-ray pulse device is mounted on one side plate of the aerial work platform 5 for crimping; the digital flat panel detector 7 ismounted on the other side plate of the aerial work platform 5 for crimping; the plurality of upright post groups are arranged on a bottom plate of the aerial work platform 5 for crimping, are positioned between the X-ray pulse device and the digital flat panel detector 7, and are respectively used for supporting a plurality of strain clamps 14 to be tested; and the aerial work platform 5 for crimping is used for crimping the strain clamp 14 and the wire 15. According to the technical scheme provided by the invention, the nondestructive testing equipment is mounted on the aerial work platformfor crimping, and the strain clamp is fixed by utilizing the plurality of upright post groups so that the use efficiency of the equipment is improved, and the operation process is optimized.

The invention relates to a device and method for tilt-shift stereoscopic photography. In a process that a camera moves along a linear guide, a driving module can control a tilt-shift lens installed on the camera to move along a direction opposite to the direction in which the camera moves along the linear guide, so that a focus of a photographed object is in a constant position in composition of the camera. The device and method for tilt-shift stereoscopic photography is simple and efficient; the resolution of the camera isn't lost during the composition; the photographed frame is smooth and stable; the obtained stereoscopic image is free of vertigo; and the requirement of a safety shutter during moving photography and the jelly effect are reduced.

The invention discloses a centering and positioning structure for a CMC gas turbine outer ring, and relates to the technical field of turbine engines. The centering and positioning structure comprises the CMC turbine outer ring, flexible connecting structures and positioning pins, wherein the whole CMC turbine outer ring is suitable for being assembled in a turbine casing; each flexible connecting structure is used for connecting the turbine casing and the CMC turbine outer ring, one end of each flexible connecting structure is fixedly connected with the turbine casing, and the other end of each flexible connecting structure abuts against the CMC turbine outer ring; and the positioning pins penetrate through the turbine casing and the flexible connecting structures as a whole, and the lower ends of the positioning pins are connected with the CMC turbine outer ring. According to the centering and positioning structure, through the application of arched elastic sheets and the positioning pins, centering and positioning requirements of the CMC turbine outer ring in a small space can be met; and meanwhile, the elastic sheets are impacted and cooled through a plurality of impact holes, so that the elastic sheets can normally work in a high-temperature environment.

The invention relates to a longitudinal seam welding process for an offshore wind power tower steel plate structure. The longitudinal seam welding process comprises the steps that S1, a special steel plate welding device is positioned; S2, the surface of the steel plate is cleaned; S3, the two steel plates are positioned on the rigid bottom plate, the opposite end faces of the two steel plates are flush with the end faces of the two sides of the inner wall of the groove body, and clamping and positioning of the two steel plates are achieved through a steel plate lateral clamping set and a steel plate axial clamping set; S4, the telescopic column descends to enable the stirring shaft to be placed in any groove body, the stirring shaft makes contact with the opposite end faces of the two steel plates, the lower end face of the shaft disc makes contact with the upper end faces of the two steel plates, and the stirring shaft is driven by the driving set to form a welding seam in a longitudinal seam between the two steel plates from the groove body of one clamping body to the groove body of the other clamping body at the rotating speed of 800-900 r / min; and S5, a cutting blade is adopted to cut the weld joint along the radial position between the clamping body and the two steel plates. The method has the following advantages that the welding quality and the structural strength of the welded shell ring are guaranteed, the welding procedure is simplified, and the welding efficiency is improved.

The invention discloses a latex centrifuge cleaning system. The latex centrifuge cleaning system comprises a moving device used for driving a latex centrifuge to move, a disassembling and assembling device used for disassembling and assembling a locking nut on the latex centrifuge, a gripping device used for gripping glands, a centrifugal shaft and centrifugal discs on the latex centrifuge, a gland cleaning device used for cleaning the glands of the latex centrifuge, a centrifugal shaft cleaning device used for cleaning the centrifugal shaft of the latex centrifuge, a centrifugal drum cleaningdevice used for cleaning a centrifugal drum of the latex centrifuge and a centrifugal disc cleaning device used for cleaning the centrifugal discs of the latex centrifuge, specifically, the moving device runs on a track, and the disassembling and assembling device, the gripping device, the gland cleaning device, the centrifugal disc cleaning device, the centrifugal drum cleaning device and the centrifugal shaft cleaning device are sequentially arranged on one side of the track. In the centrifugal disc cleaning process, the original positions of the centrifugal discs are kept invariable, one-time effective centrifugal disc cleaning is achieved, and the cleaning efficiency is greatly improved.

The invention discloses a gate driven by a cam structure. The gate driven by the cam structure comprises a machine frame, a gate plate and a motor. The motor is fixed on the machine frame, the gate plate is hinged to the machine frame, a cam is sleeved on a rotary shaft of the motor, the motor drives the cam to rotate, a locking device used for being matched with the cam in operation is arranged between the cam and the gate plate, and the cam drives the gate plate to open and close under the coordination of the locking device. A link mechanism is used for driving the gate plate to close and open by most current gates, a speed feedback device and a control system need to be additionally arranged to achieve the ideal speed curve needed by the gate plate, the cost of the device is high, noise can be generated if the link mechanism is installed inappropriately, and the service life of the link mechanism is influenced. Due to the simple control of the motor, control over the opening and closing speed of the gate plate identical to the ideal gate opening and gate closing speed suitable for normal passing speed of passengers is achieved, installation is simple, and cost is low.

The invention relates to the field of measuring instruments, in particular to an external thread pitch diameter measuring device, comprising a measuring ruler, a convex measuring head and a convex measuring head; the concave measuring head comprises a measuring head seat provided with first and second slip jaws which cooperate and form a measuring tooth slot for clamping a thread tooth, the measuring tooth slot includes first and second clamping faces for clamping the thread tooth, the first clamping face is arranged on the first slip jaw, the second clamping face is arranged on the second slip jaw, the first and second slip jaws are in guided sliding fit with the measuring head seat, the size of the measuring tooth slot may be adjusted by sliding the first and second slip jaws, the convex measuring head is provided with measuring teeth paired to the measuring tooth slot and used for matching with a thread tooth groove. The size of the measuring tooth slot in the external thread pitch diameter measuring device may be adjusted to adapt to threads of different pitches, and the problem that an existing external thread pitch diameter measuring device has a need for changing measuring heads to measure external threads of different pitches is solved.

The invention discloses a vibrating device for producing a steel bar truss concrete laminated slab. The vibrating device comprises a plurality of supporting frames fixedly mounted at the lower end of a mounting plate, a supporting plate is mounted on the mounting plate, a shaping plate is mounted on the supporting plate, a shaping groove is formed in the shaping plate, a concrete layer is poured in the shaping groove, a steel bar truss is placed on the shaping groove, a reciprocating motion mechanism is mounted between the mounting plate and the supporting plate, a plurality of vibration mechanisms are mounted between the supporting plate and the shaping plate, and fixing rods and positioning rods are fixedly mounted on the left side and the right side of the upper end of the shaping plate. The vibrating device has the advantages that the vibrating operation of the concrete layer in the shaping groove can be automatically completed, manual operation is not needed, the labor intensity of workers is effectively reduced, the working efficiency is improved, in the vibrating operation process, it can be effectively ensured that the steel bar truss keeps fixed relative to the shaping plate, and the problem that the quality of finished products is poor due to inclination of the steel bar truss is solved.

The invention discloses a gear type fixed-point tilting pouring machine. The gear type fixed-point tilting pouring machine comprises two support plates in parallel and a pouring ladle, wherein a cylindrical boss and an arc-shaped slot taking the center of the cylindrical boss as the center of a circle are formed on each of the back-to-back surfaces of the two support plates, sun gears are fixedly mounted on the opposite surfaces of the two support plates, and the center of each sun gear and the center of the corresponding boss are superimposed; an outer gear is mounted on each boss through a radial rolling bearing and is meshed with a rack, and the racks are fixedly mounted on a hydraulic cylinder; tilting shafts are mounted on the outer gears, correspond to the arc-shaped slots, and penetrate through the arc-shaped slots of the support plates to be connected with planet gears, and the planet gears are meshed with the sun gears; two pouring ladle lugs of the pouring ladle are connected with the two tilting shafts through threaded pins, respectively. The gear type fixed-point tilting pouring machine disclosed by the invention is safe and reliable and can control the tilting of the pouring ladle easily; when the gear type fixed-point tilting pouring machine is used for pouring, the pouring ladle rotates at a fixed point around an imaginary rotating shaft, the positions of a pouring ladle mouth and a pouring gate are unchanged, and the pouring quality is improved.

The invention provides a revolving body scanning measurement method and a data compensation calibration method thereof, whether an upper positioning cone and a lower positioning cone are aligned or not is checked through inclination self-correction, and if not, automatic correction is carried out, so that the scanning error is reduced, and the accuracy of scanning data is ensured; slope compensation and system error compensation are carried out on scanning data, and fine tilt errors and system errors are automatically compensated, so that the accuracy of the data is further ensured.

The invention relates to the technical field of needleless injectors, in particular to a gun type needleless injector. The gun type needleless injector comprises a gun body, a driving piston assembly,an energy storage mechanism, an inner hydraulic pipe, an outer hydraulic pipe, an energy storage mechanism, an injection one-way valve and an oil storage barrel. According to the gun type needlelessinjector, a piston pushes a hydraulic rod by the pneumatic piston when in percussion, the hydraulic rod drives the hydraulic piston to push hydraulic oil in a first oil cavity forwards to enter a second oil cavity, a stepping piston in the outer hydraulic pipe is forced to drive a push rod to conduct percussion forwards, and therefore the push rod pushes out liquid medicine in a medicine core at the head end of the outer hydraulic pipe at a high speed, single quantitative injection is completed, when the hydraulic piston retreats, the hydraulic oil in an oil storage barrel can be automaticallysupplemented into the first oil cavity, and when the hydraulic piston retreats, the injection one-way valve can prevent the hydraulic oil in the second oil cavity from returning into the first oil cavity so as to keep the position of the push rod unchanged, so that continuous multi-time quantitative injection can be realized.

The invention discloses a gear pitch deviation measuring method and a measuring tool thereof. The method comprises the following steps: adjusting the heights of a fixed measuring jaw and a movable measuring jaw of a pitch measuring mechanism; hoisting a measuring force weight on the constant force applying side of the measured gear through a hanging rope to obtain a transverse reference value of the transverse position of the tooth pitch measuring mechanism; obtaining a reference tooth pitch value of the measured reference tooth; the sliding tooth pitch measuring mechanism enabling the measured first tooth to be located between the fixed measuring jaw and the movable measuring jaw; enabling the compression amount reading of the second dial indicator to be consistent with the transverse reference amount value; obtaining a first tooth pitch value of the measured first tooth; comparing the first tooth pitch value with a reference tooth pitch value to obtain a tooth pitch deviation value.According to the gear pitch deviation measurement method, a constant measurement force is applied to the constant force application side of the measured gear, so that the measurement of the pitch of the measured gear is not easily influenced by the environment and operators, and the pitch deviation of the measured gear is accurately measured.

The invention discloses magnetic control type information recording equipment and a recording method thereof. The structure of the magnetic control type information recording equipment comprises a plurality of display units arranged on the same plane in array arrangement and used for displaying information, wherein the structures of the respective display units are the same; each display unit comprises a main cavity capable of displaying two different signals, and a magnetic control plate arranged on one side of the main cavity and used for controlling the main cavity for signal display; and when the information displayed by the main cavity needs to be changed, the magnetic control plate generates magnetic field control through consuming electric energy and changes the information displayed by the main cavity, and then power failure is performed after the information is changed, so that the information does not disappear. The magnetic control type information recording equipment has the beneficial effects that by taking colors as signals, a permanent magnet, an iron core and an adsorption layer are attracted to each other, so that the signals do not disappear in a power-failure condition; and the signal switching control is facilitated through the magnetic control plate.

The invention discloses an intelligent protection device for intestinal tract after intestinal surgery, which comprises a hollow annular air bag, the annular air bag is integrally formed with a firstpositioning part, a supporting part and a second positioning part with independent internal cavities, the outer ring diameter of the first positioning part and the outer ring diameter of the second positioning part are both larger than the outer ring diameter of the supporting part, the first positioning part and the second positioning part are respectively used to support the distal and proximalends of the intestinal tract and are away from the intestinal tract suturing section by a set distance, the supporting part is used to support the intestinal tract suturing section, an integrated inflation pipe is arranged on the inner wall of the annular air bag, the end of the inflation pipe is exposed out of the human body and communicated with the inner cavities of the first positioning part,the supporting part and the second positioning part through independent valves, and the internal cavity pressure of the first positioning part and the internal cavity pressure of the second positioning part are both greater than the internal cavity pressure of the supporting part in the protection state. The intelligent protection device for intestinal tract after intestinal surgery can effectively protect the intestinal tract suturing section and avoid pollution of excrement to the intestinal tract suturing section.

The invention provides a preparation method of a magnetic powder particle transmission electron microscope sample, and belongs to the technical field of transmission electron microscope sample preparation. The method comprises the following steps: embedding magnetic powder particles in a transmission electron microscope sample supporting net, further fixing by using ion thinning special resin, respectively arranging film materials on an upper layer and a lower layer, and applying pressure by using a clamp, uniformly distributing the ion thinning special resin, completely wrapping the transmission electron microscope sample supporting net and the magnetic powder particles, discharging existing air, heating, preserving heat, cooling, taking out the supporting net, preparing a thin area, and preparing the magnetic powder particle transmission electron microscope sample. According to the method, the magnetic powder particles can be subjected to transmission electron microscope microstructure observation, it is guaranteed that the magnetic powder particles can be stable and immovable under the high-intensity magnetic field condition, and transmission electron microscope observation of the microstructure of the magnetic powder particles becomes possible.

The invention discloses an experimental device for conveniently adjusting inclination angle for university physical potential energy experiment, including the base and the test bench, the upper two sides of the chassis are provided with vertical bars, the one side surface of the vertical bars is embedded with a first sliding groove, and the first sliding groove is engaged with the middle of the first sliding groove to install a test bench. The two sides of the bottom of the test bench are provided with support bars, and the internal threads of the support bars are provided with rotary bars, and the bottom of the rotary bars is connected with a rotary disk. The experimental device which can adjust the tilt angle conveniently can adjust the height of the whole device in the process of using,the tilt angle of the whole device can also be adjusted, so the the whole device is more flexible in the process of learning potential energy, and the experiment process can also ensure the the backward position under the iron ball is unchanged, which is convenient to record the data of the subsequent experiment.

The invention discloses a large material turnover device. The large material turnover device comprises a rack, a turnover driving mechanism, a material bearing conveying mechanism, a conveying drivingmechanism and a positioning mechanism, the rack is fixedly connected to the ground, the material bearing conveying mechanism is connected to the rack, the turnover driving mechanism is mounted on therack and connected with the material bearing conveying mechanism, the turnover driving mechanism drives the material bearing conveying mechanism to overturn around the rack, the conveying driving mechanism is connected with the material bearing conveying mechanism and drives a roller of the material bearing conveying mechanism to rotate, and the positioning mechanism is connected to the materialbearing conveying mechanism. According to the large material turnover device, after materials are positioned through the material bearing conveying mechanism and the positioning mechanism, the turnover driving mechanism drives the material bearing conveying mechanism to overturn, thus the heavy materials are overturned to the designated posture to be conveyed to a next station, thus turnover precision required by a technology and shorter conveying time are reached, front conveying is changed into reverse conveying through mechanical control, and the labor intensity and safety risk are reduced.

The invention discloses an experimental device for conveniently adjusting inclination angle for university physical potential energy experiment, including the base and the test bench, the upper two sides of the chassis are provided with vertical bars, the one side surface of the vertical bars is embedded with a first sliding groove, and the first sliding groove is engaged with the middle of the first sliding groove to install a test bench. The two sides of the bottom of the test bench are provided with support bars, and the internal threads of the support bars are provided with rotary bars, and the bottom of the rotary bars is connected with a rotary disk. The experimental device which can adjust the tilt angle conveniently can adjust the height of the whole device in the process of using,the tilt angle of the whole device can also be adjusted, so the the whole device is more flexible in the process of learning potential energy, and the experiment process can also ensure the the backward position under the iron ball is unchanged, which is convenient to record the data of the subsequent experiment.

The invention provides a ground simulation test attitude adjusting mechanism for a space detection sensor. The y-axis is defined as the horizontal direction and the z-axis is defined as the vertical direction. The adjusting mechanism comprises a rotating support around the y-axis, a rotating support around the z-axis, a y-axis revolving pair, a z-axis revolving pair, a sensor support and a rack platform. The connection relation of the attitude adjusting mechanism is that the sensor support is fastened on the rotating support around the y-axis and parallel to the z-axis, the rotating support around the y-axis is connected with the rotating support around the z-axis through the y-axis revolving pair, and the rotating support around the z-axis is connected with the rack platform through the z-axis revolving pair; and the sensor support is used for installing the space detection sensor, and the central axis of the y-axis revolving pair penetrates through the center O of the space detectionsensor, and the central axis of the z-axis revolving pair penetrates through the center O of the space detection sensor. The sensor position can be guaranteed to be unchanged when the sensor attitudeis adjusted.

The invention discloses a single-plate swing arm type material collecting set. The single-plate swing arm type material collecting set comprises a rack, a rewinding leaning roller fixedly arranged on the rack, a material collecting roller assembly and a reciprocating swing assembly, wherein the material collecting roller assembly comprises a material collecting arm and a material collecting roller; one end of the material collecting arm is hinged to the rack, and the material collecting roller is located at the end, away from the end, hinged to the rack, of the material collecting arm; and the output end of the reciprocating swing assembly is connected with the material collecting arm, the material collecting arm rotates around a hinge shaft of the material collecting arm and the rack through movement of the output end of the reciprocating swing assembly, and therefore the material collecting roller moves towards the rewinding leaning roller, a radian swing type structure is adopted for winding, and winding press-fit points are kept at the same position.

The invention provides a robot system for full-automatic welding of steel members and a using method of the robot system. The robot system comprises a welding workbench, a welding robot, a carrying robot and a controller. The welding workbench of the robot system is provided with various positioning and fixing jigs, and it can be guaranteed that the position is not changed in the workpiece positioning and welding process. According to the robot system, standardized operation of all links can be achieved through control of the controller, workers only need to operate the welding robot, the technical requirement for the workers is low, and the problems of high technical requirement for welders, low production efficiency, uneven welding quality in manual welding are effectively solved. The robot system adopts double-station design, the working efficiency is effectively improved, and cost waste caused by secondary design is effectively avoided.

The invention discloses a rotary shaft mechanical locking device based on the lever micro-motion principle. The rotary shaft mechanical locking device is mainly composed of three main parts, namely acam mechanism, a lever device and a locking assembly. The locking principle of the locking device is characterized in that the cam mechanism is driven by a hand wheel to move, and the lever micro-motion principle is utilized, so that the lever mechanism is enabled to slightly move up and down by means of hinge points; and the appearances of the two ends of the lever device are reasonably arrangedso that the lever device can tightly press pressing blocks in the locking device. According to the rotary shaft mechanical locking device based on the lever micro-motion principle, the factors of thedeformation of shafting and the reliability of the locking effect are considered, the three pressing blocks are evenly arranged on the locking assembly, pressing and loosening of the pressing blocks are controlled through the lever device and the hand wheel, the structure is reliable and reasonable, and the operation is convenient.

The invention discloses a classroom midair noon break bed which comprises a bed tail frame and a bed body. The bed tail frame is arranged at one end of the bed body, the bed body comprises a plurality of splicing units, every two adjacent splicing units are fixedly connected, each splicing unit comprises a first bed leg, a bed frame, a second bed leg and an expansion supporting frame, one end of the bed frame is hinged to the first bed leg, the extension supporting frame is arranged on the first bed leg, the second bed leg is arranged on the extension supporting frame, a bed frame guide rail is arranged on the second bed leg, a first sliding block is rotatably arranged at one end, away from the first bed leg, of the bed frame, and the first sliding block is arranged on the bed frame guide rail in a clamped and sliding mode. The invention relates to the technical field, and particularly provides the classroom midair noon break bed which does not need to move desks and chairs, is more convenient to open and store, can fully utilize the space in a classroom, is simple to operate and saves time.