39results about How to "Precise track" patented technology

The invention relates to an automatic assembling machine for automobile starter switch screws, and belongs to the technical field of automobile starter motor assembly assembling equipment. The automatic assembling machine comprises a rack, multiple tightening devices, a graduator, a workpiece fixture and an index plate; the index plate is installed on the rack, an air distributing rotation barrel is installed in the center of the index plate, the tightening devices are installed on the rack, and a vibration loader is arranged on one side of the rack; a switch screw feeding device is arranged at one side of each tightening device and connected with the vibration loader through a communication pipe. According to the automatic assembling machine for the automobile starter switch screws, the structure is compact, the automation degree is high, and the problems that in an existing manual starter switch screw assembling mode, time and labor are wasted, the assembly efficiency is low, the labor intensity is high, and the assembly consistency cannot be guaranteed are solved. The automatic assembling machine for the automobile starter switch screws is particularly suitable for being used in automatic assembling of the automobile starter motor switch screws.

The invention discloses a drilling machine, which comprises a machine platform, a frame, a movable platform, a cutting detection mechanism, a powder absorption device and an oil cooling device. The machine platform serves as a bearing device of the whole drilling machine, the frame is arranged on the machine platform, the movable platform comprises an X axis platform installed on the machine platform and a Y axis platform installed on the frame, the cutting detection mechanism is fixedly installed on the frame through a casing of the cutting detection mechanism, and the powder absorption device is arranged on the side of the frame and is communicated with the casing of the cutting detection mechanism through a connection pipe. At least six mechanical arm devices are arranged on the frame, and each mechanical arm device comprises a main holder device and an auxiliary holder device installed on the side of the main holder device. The drilling machine is compact in structure and high in manufacture accuracy and production efficiency, can save material resources and greatly lower production and manufacture cost.

The invention relates to a method, equipment and system for testing a measurement error of a satellite navigation receiver under a dynamic condition, computer equipment and a storage medium. The method comprises the following steps of: establishing an inter-station inter-satellite pseudo-range double-difference equation and a carrier phase double-difference equation of a static base station and a receiver to be tested by using the static base station and the receiver to be tested moving along a known circular track and taking sine and cosine values of inter-station inter-satellite double-difference ambiguity and a yaw angle of the receiver to be tested relative to the circle center of the track as unknown numbers; carrying out solving and ambiguity fixing, establishing an inter-station inter-satellite carrier phase double-difference equation of a relative position vector from the base station to the receiver to be measured, calculating the accurate position of the receiver to be measured according to an effective fixed solution and a known circular track, and obtaining the measurement error of the receiver to be tested by combining broadcast ephemeris. The receiver measurement error under the dynamic condition can be tested, the test under the complex environment can be conveniently carried out, the ambiguity floating point solution solving success rate and accuracy are improved, and the error measurement result is more comprehensive and reliable.

The invention relates to a spinning device for melting and spinning a plurality of single filament, having a nozzle holder and a detachable spinning nozzle assembly held on a melt joint of the nozzle holder with a melt inlet. The nozzle holder has a holding part for accepting the spinning nozzle assembly with thread screw at the lower side for fixing function. The spinning nozzle assembly has a corresponding holding part with corresponding thread screw for cooperation with the holding part. For fixing and high sealing between the spinning nozzle assembly and the nozzle holder with partly rotation, according to the invention, the corresponding thread screw forms from external thread screw of a thread section with one full circle only on the corresponding holding part. The thread section is a plurality of thread gaps on circumference direction. The thread screw forms from inner thread of a thread groove with one full circle only on the holding part. The thread groove stops by a plurality of thread cuts in circumference. The thread gap of the external thread has an arc size more than that of the thread cut of the inner thread each. The quantity of the thread gap is identical with that of the thread cut.

The invention discloses a carbon-free trolley capable of walking in a figure-eight shape, which belongs to the technical field of carbon-free trolleys and aims to provide a new device with novel structure, obvious features and high practicability; The driving mechanism, the transmission mechanism and the steering mechanism on the vehicle frame, the described vehicle frame includes a bottom plate and a column arranged on the bottom plate; the described driving mechanism includes a fixed pulley, a wire rope, a potential energy block and a bobbin; the described transmission The mechanism includes a gear set, a first rotating shaft, a second rotating shaft, a scroll wheel, a 90° double pin plate, a sheave and a third rotating shaft; the steering mechanism includes a steering wheel, and the steering wheel passes through a crank The rocker mechanism is connected with one end of the third rotating shaft; the invention is suitable for the teaching of mechanical principles.

The invention discloses a device for prolonging the cycle life of a high-voltage lithium cobalt oxide positive electrode material sagger. The device comprises a sagger stacking mechanism shell (1), two clamping mechanisms, two polyurethane plates (3), a light sensor (4), an air cylinder (5) and the sagger (6), wherein the two clamping mechanisms are both installed in the sagger stacking mechanism shell (1), and the two clamping mechanisms are located on the two sides of the sagger (6); the clamping mechanism comprises a motor, a clamping rod (7) and a clamping plate (2), one end of the clamping rod (7) is connected with the motor, the other end of the clamping rod (7) is connected with one side of the clamping plate (2), the other side of the clamping plate (2) is connected with polyurethane plates (3), and the two polyurethane plates (3) are close to the two sides of the saggar (6). The light sensor is close to one clamping mechanism; the air cylinder is installed in the saggar stacking mechanism shell and installed at the bottom of the saggar. The automatic circulation line sagger stacking mechanism can be improved, so that the service cycle life of the sagger is prolonged.

The invention provides a medical examination bed capable of preventing deviation of a bed sheet. The medical examination bed comprises a movable bracket, and a bed body arranged on the movable bracket, wherein two ends of the bed body are respectively a driving barrel end and a driven barrel end, the driving barrel end comprises left and right support plates symmetrically arranged on two sides of the bed body, a driving barrel is arranged between the left and right support plates, a correcting barrel is arranged above the driving barrel, the right end of the correcting barrel is inserted into a hole correspondingly formed in the right support plate and is fixedly connected through a screw, the left end of the correcting barrel is inserted into a bar-shaped chute correspondingly formed in the left support plate, the center of the bar-shaped chute is just opposite to the hole in the right support plate, correcting baffle rods are arranged on the inner side surfaces of the left and right support plates above the correcting barrel, symmetrically, one ends of the correcting baffle rods are respectively fixedly connected with the left and right support plates, the other ends of the correcting baffle rods are fixedly connected with the side surface of the end part of the bed body, and the correcting baffle rods incline by 15 degrees downwards from the left and right support plates, and extend towards the side surface of the end part of the bed body, so that the left support plate and the right support plate, the two correcting baffle rods and the side surface of the end part of the bed body form two triangular support structures. With the medical examination bed, the deviation of the bed sheet in the use process is guaranteed, and the paper jam phenomenon is prevented.

The invention provides a hydraulic tensioning type single-layer wet type scraping plate slag dragging machine. The hydraulic tensioning type single-layer wet type scraping plate slag dragging machinecomprises a groove body; the groove body comprises a horizontal groove body and an oblique groove body; the oblique groove body is connected with the horizontal groove body into a whole; emergent slagoutlets are formed in the side wall of the horizontal groove body; manual inserting plate doors are arranged at the upper end of the horizontal groove body; a transmission wheel and a tensioning wheel are correspondingly arranged at the two ends of the groove body; the transmission wheel is arranged on the oblique groove body; an upper guide wheel and a lower guide wheel are arranged in the groove body; the transmission wheel and the tensioning wheel are connected with chain scraping plates; chain scraping plates are tensioned by the upper guide wheel and the lower guide wheel; the transmission wheel is connected with a speed-reducing motor; and a hydraulic tensioning device is arranged at the lower end of the tensioning wheel. With the adoption of the hydraulic tensioning type single-layer wet type scraping plate slag dragging machine, slag scraping and return stroke chains are not abraded, operation tracks of the chains are accurate, and the chains are not separated or clamped.

The invention relates to a solar composite tracking method, and a solar tracking control system comprises a condenser and a control driving device, and is characterized in that the composite trackingmethod comprises the following steps: the condenser acquires the current illumination intensity; judging whether the illumination intensity is greater than a set intensity threshold value or not, If so, performing sun azimuth tracking by adopting a photoelectric tracking method; If not, carrying out sun azimuth tracking by adopting an improved sun-looking motion trail tracking method. Compared with the prior art, according to the invention, a composite solar tracking method of a photoelectric tracking method and an improved sun-looking motion trail tracking method is adopted, specific trackingmodes can be switched according to weather and illumination conditions, instability of the photoelectric tracking method can be overcome, and all-weather, high-precision and intelligent tracking of the sun position by a sun tracking control system is realized.

The invention provides a circular track crane and an automatic operation rectifying system thereof. The circular track crane comprises a bridge frame and four sets of operation components arranged at the lower part of the bridge frame; under drive of the four sets of operation components, the circular track crane rotates on a circular track around the axis of the circular track; a circular safety shell is arranged around the circular track on the outer side of the circular track; and the automatic rectifying system comprises at least two sets of information acquiring components respectively used for acquiring operation information of at least two sets of adjacent operation components, a control device for receiving information acquired by the at least two sets of information acquiring components, and four sets of actuation components for respectively driving the four sets of operation components to operate. The automatic operation rectifying system of the circular track crane enables the driving rotating speeds of the four sets of operation components to be different through determining a walking trajectory and an inclined direction of the crane by calculation and adjustment of the control device, so that automatic rectification is finally realized, and the accuracy and the stability of the operation trajectory of the crane are guaranteed.

The invention provides a normal-position turning device for a railway vehicle testable track wheel. According to the main constitution, a two-dimensional moving platform is installed on the left upperportion of a base of the track wheel, a transverse moving platform is arranged on the upper portion of the two-dimensional moving platform, the transverse moving platform is provided with a cutter feeding mechanism, a round turning cutter is arranged at the right end of the cutter feeding mechanism, an upper beam frame is arranged above the transverse moving platform, a guide frame is longitudinally connected into a rectangular inner cavity of the upper beam frame in a sliding manner, an arc-shaped rack plate is fixedly embedded into the upper portion of an inner cavity of the guide frame, aguide through groove plate is fixed to the lower portion of the inner cavity of the guide frame, a transverse top plate is arranged above the upper beam frame, a profiled shaft of a corner type speedreducer on the transverse top plate sequentially penetrates through the transverse top plate, the inner cavity of the arc-shaped rack plate and a guide groove of the guide through groove plate downwards and is inserted into a drive hole of the transverse moving platform, a gear on the profiled shaft is matched with the tooth edge of the inner cavity of the arc-shaped rack plate, and the center line of the guide through groove is the sum of the appearance curve of the cross section of the standard track wheel and the equidistant line of the outer side of the radius of the round turning cutter.The normal-position turning device is simple in structure, short in maintenance time and low in expense, and maintenance operation is convenient.

The invention discloses a gluing and filming machine. The gluing and filming machine comprises a glue delivery pipe, an air cylinder, a gluing needle, a glue barrel and a gluing pump; the gluing pump is composed of a valve rod sleeve, a valve rod and a valve body; the valve body is located inside the valve rod sleeve and is fixedly connected with a valve seat by a pin hole; the valve rod is fixed inside the valve body by a nut; the top end of the interior of the valve body is connected with a guide cover by a screw thread; a pressure spring is connected between the guide cover and the valve rod; one side of the valve rod sleeve is fixed with a core shaft by the pin hole, and the other side of the valve rod sleeve is connected with the glue delivery pipe; a bearing is arranged on the core shaft; a gluing cam is connected at the lower end of the bearing; the lower end of the gluing cam is connected with the air cylinder by a screw thread. The gluing and filming machine has the characteristics of simple structure, strong operability, good product running stability, high glue utilization rate and high working efficiency, and the cost is saved.

The invention discloses a metal plate assembly line. The metal plate assembly line comprises an upper assembly line, a lower assembly line and lifting devices, wherein each lifting device comprises a jacking cylinder, a conveying mechanism arranged at an output end of the jacking cylinder and an induction mechanism; the upper assembly line is provided with a candidate area trigger part; and each induction mechanism comprises a protection trigger part and a lifting trigger part which are sequentially arranged in the direction that tool plates enter the corresponding lifting device, and the distance between each protection trigger part and the corresponding lifting trigger part is smaller than the lengths of the tool plates in the conveying direction. By controlling the candidate area trigger part, the protection trigger parts and the lifting trigger parts, the jacking cylinders can ascend or descend only when certain conditions are met, no accident is generated through cooperation of the candidate area trigger part, the protection trigger parts and the lifting trigger parts, the next step of movement is protected every time the tool plates trigger one trigger part, and new problems are avoided, therefore, a new movement form can be perfectly met through use of the jacking cylinders, the production cost is reduced, and the economic benefit is good.

The invention relates to a pavement construction system based on combined navigation, which comprises a combined navigation subsystem arranged on a road roller; a BIM generating module used for generating a BIM model of the construction area; a coordinate generating module used for establishing a construction coordinate system according to the known construction area boundary and obtaining the coordinate information of the road roller according to the positioning information of the combined navigation subsystem; a control system connected with the combined navigation subsystem, the BIM generating module and the coordinate generating module and used for indicating the road roller to run according to a preset track based on the BIM model according to the construction coordinate system and the coordinate information. The control system combines the coordinate information and the BIM model, and controls the running of the road roller in the BIM model in real time, so that the running trackof the road roller is more accurate, and the construction precision is improved; and the road roller is positioned in real time through the combined navigation subsystem, so that the manual measurement process is reduced, and the construction efficiency is improved.

The invention relates to a sliding force detection device used for an air disc brake, and belongs to the field of air disc brake assembly detection equipment. The sliding force detection device comprises a rack, a servo motor, a program control cabinet, a control panel, a sliding seat, a sliding block, a sensor, an underprop air cylinder and a lifting air cylinder, wherein the servo motor is mounted on one side of the rack; a sliding rod is mounted on one side of the servo motor; the sliding seat and the sliding block are mounted on the sliding rod; a mounting board is fixedly mounted at the top of the sliding block; and the sensor is fixedly mounted on the mounting board, and fixedly connected with an L-shaped connecting board by a floating joint. The sliding force detection device is simple and compact in structure, precise to manufacture, high in automation degree in a detection process, and accurate in moving track, so that a detection result can be stable and reliable, and unmanned operation is achieved; the problem that the traditional detection mode cannot adequately guarantee the reliability of the detection result is solved; and a guarantee is provided for ensuring the quality and the performance of a product.