565results about How to "High running precision" patented technology

The invention discloses a logistic processing system and a logistics processing method in direct connection with an e-commerce platform. According to the logistic processing system and the logistics processing method provided by the invention, a client side is directly connected with the e-commerce platform through a port to acquire confirmed electronic order data information in the e-commerce platform and generate destination codes and next-level transfer codes accordingly; and the client side prints express lists accordingly and transmits duplicate information to a central management unit and a station management unit. The station management unit is used for storing and managing information data of all stations of a logistics company; and the central management unit, which is used for storing and managing data information of the whole logistics processing system, is respectively connected with the client side and data of the station management unit. According to the logistic processing system and the logistics processing method provided by the invention, 40-50% of labour cost in a current logistics express industry can be reduced, unit operation time can be shortened by 2-3hours, work pressure from bottom to up in the current logistics express industry can be relieved, and the whole operating efficiency can be increased by more than one third.

The invention relates to a rack serving device (1) with a load-bearing means (4) displaceable in the height direction of a mast (2), the mast (2) being guided by means of bogie assemblies (7, 8) on bottom and top guide tracks and mounted so as to be displaceable along the guide tracks by means of a bottom and top friction-locking displacement drive (13, 14). The bottom and the top adjusting mechanisms are guided by means of height and lateral guide elements on the guide track and are designed to be displaceable relative to the guide tracks by means of a drive system (33). Arranged respectively between the displacement drives (13, 14) and bogie assemblies (7, 8) is a coupling mechanism (29), comprising at least two displaceable coupling parts (28) and, extending between the articulation axes of the coupling parts (28), at least one coupling connection (27) which is pivotable about the articulation axis substantially perpendicular to the longitudinal extension of the guide track relative to a coupling part (28) and, at an end region remote from this articulation axis, mounted so as to be slideable in a longitudinal guide extending substantially parallel with the longitudinal extension of the mast (2).

The invention discloses a novel plane two-degree-of-freedom redundant drive parallel moving platform, and belongs to the technical field of mechanical manufacturing. The novel plane two-degree-of-freedom redundant drive parallel moving platform comprises a moving platform, parallel guide rails, three equal-length branch chains, a telescopic branch chain and slide blocks; the positions of the slide blocks on the corresponding guide rails and the lengths of the telescopic branch chains are controlled under driving of a servo motor; and the moving platform has two translation degrees of freedom in the plane. Because a parallel mechanism is adopted, the moving platform has the advantages of high rigidity and good dynamic performance; the telescopic branch chains are taken as the redundant drive branch chains, a pull pressure sensor is installed close to the connection point of the telescopic branch chains and the moving platform, preset pull pressure force can be applied to the moving platform by utilizing the servo motor at the point along the directions of the telescopic branch chains through force enclosed loop control. Through optimizing the size and direction of applied load of the redundant drive branch chains, the rigidity and dynamic performance of the mechanism can be improved further.

The invention discloses an industrial mechanical arm precision calibrating method based on collaborative Kriging and belongs to the technical field of robots. A device used for the method is composed of an industrial mechanical arm, a laser tracker and a target ball. The target ball is fixed to the tail end of the industrial mechanical arm and serves as a tool center point. According to the method, actual coordinates of some points are measured through the laser tracker; then position errors of theoretical coordinates and the actual coordinates of the points are obtained; and by building a crossover variation function and adopting a collaborative Kriging interpolation method, the position errors of the points in the movement space of the industrial mechanical arm are estimated. The method is simple, it is not needed to build a kinetic model of the industrial mechanical arm, and the method has the beneficial effects that universality is good, the running precision of the industrial mechanical arm can be improved, and inner parameters of an industrial mechanical arm controller device are not needed to be modified.

The invention provides a space six-degrees-of-freedom mechanism used for a hypersonic wind tunnel multi-body separation test. The mechanism comprises Z, X and Y three degrees of freedom straight-line motion mechanisms and [beta], [alpha] and [gamma] three degrees of freedom angular displacement motion mechanisms. The six-degrees-of-freedom are realized layer by layer and are connected step by step, and in terms of structure, embedment integration is achieved by a box stacking mode. A Z-direction mechanism, an X-direction mechanism and a [beta] mechanism are sequentially overlapped from bottom to top, and a Y-direction mechanism and a [alpha] mechanism are in embedded connection from outside to inside. A [gamma] mechanism is fixedly connected with the [alpha] mechanism through a bent blade, and is individually arranged in a wind tunnel flow field. Each of the Z-direction mechanism, the X-direction mechanism and the Y-direction mechanism adopts two driving assemblies in symmetric arrangement, so that the power and the size of a driving motor are effectively reduced, and the overall stability of the mechanism is improved. The [beta] mechanism and the [alpha] mechanism adopt line-to-arc mechanisms for implementation, so that overlapping of traditional three degrees of freedom rotation pairs is prevented, and the mechanism cantilever length is shortened. The structure is compact, the rigidity is good, andsix-degrees-of-freedom movement of high speed, high precision and high bearing capacity is achieved.

The invention relates to a no-drifting high accurate open type static pressure guide rail, which comprises a floating guide rail (1) and a supporting guide rail (2); the floating guide rail (1) is placed on the supporting guide rail (2); a static pressure oil chamber (6) and a negative pressure chamber (7) are formed on the contacting surface of the floating guide rail (1) and the supporting guide rail (2); an oil supply system (9) is connected to the static pressure oil chamber (6) by a restrictor (5); the negative pressure chamber (7) is connected with the vacuum pump (4); the vacuum pump is connected with the fuel supply system (9) by a oil gas separator; and a oil-returning groove connected with the oil supply system (9) is formed between the floating guide rail (1) and the supporting guide rail (2). The invention is simple and practicable, increases oil membrane rigidity, can regulate the oil membrane thickness by the vacuum pump, can be widely applied in open type static pressure guide rails with various structures, especially small and middle low load precision or super-precision machine tools such as precision roll grinding machine and sophisticated planer which are limited by the problem of drifting.

The invention relates to a laser cutting machine and a working method thereof. Like a small-breadth laser cutting machine, the laser cutting machine of the invention has high cutting quality, high efficiency and high accuracy, and the consumed power of a driving system in the cutting process is smaller. The laser cutting machine comprises a stand provided with an X lead rail, a main beam provided with a Y lead rail and a laser head seat, wherein the main beam is movably connected with the X lead rail on the stand; the laser cutting machine also comprises a cantilever beam for a laser head to realize short-distance movement in the X direction; the cantilever beam is provided with an X short lead rail; the root of the cantilever beam is movably connected with the Y lead rail on the main beam to enable the cantilever beam to make Y-direction movement; and the laser head seat is movably connected with the X short lead rail. The working method comprises the following steps: 1. installing a buffer area on the short lead rail; 2. according to different processing requirements, calculating by different steps respectively; and 3. starting the laser cutting machine according to the calculating to manufacture. In the invention, a vector control principle is adopted to synthetize VX minor-axis speed, VX long-axis speed and VY speed so as to effectively control the speed in processing to ensure the processing quality.

A light-emitting device which comprises as one unit a semiconductor light-emitting element; a first liquid for condensing the light from the semiconductor light-emitting element; a second liquid that is separate from but contacts the first liquid; an airtight space in which at least first liquid and second liquid are disposed; and first and second electrodes to which voltage is applied so as to change the shape of the interface between first liquid and second liquid and adjust the condensed state of the light from semiconductor light-emitting element.

The invention relates to a multi-leaf collimator control system, comprising an industrial control computer, and a main controller connected with the industrial control computer, wherein the main controller is connected with a blade and cabinet controller which controls and connects with a blade and cabinet driver; the blade and cabinet driver is in driving connection with a blade and cabinet motor which is in transmission connection with a blade and a cabinet body; the blade and the cabinet body are provided with position detectors which are connected with the blade and cabinet controller to form a feedback loop; and the driver is connected with the blade and cabinet controller by a current detector to form a feedback loop. The multi-leaf collimator control system is controlled by the industrial control computer, realizes the closed-loop feedback adjustment by using an encoder or a linear scale, and improves running precision of the blade and the cabinet body; moreover, the control process is stable, reliable, convenient and rapid.

The invention relates to a wheel (1) with a driven wheel body (2), comprising two support elements (21, 22), between which a number of roller bodies (3) with a spherical surface are arrange to rotate, which at least partly extend beyond the circumference of the support elements (21, 22) the rotational axes of which are arranged at an angle to the rotational axis (23) of the wheel body (2). The ratio of the outer diameter (Du) of the wheel (1) to the maximum radius (Ra) of the roller body (3) is between 1.08 and 1.13, in particular, between 1.09 and 1.12.

The invention provides an upper limb powered exoskeleton driving system. The upper limb powered exoskeleton driving system is composed of an upper arm gas and liquid driving cylinder, a strap, shoulder inner side joints, shoulder front stretching joints, a lower arm gas and liquid driving cylinder, elbow joints and a lower arm supporting frame. According to the upper limb powered exoskeleton driving system, the gas and liquid series connection cylinders serve as a driving executor of the shoulder joints and the elbow joints in an upper limb powered exoskeleton mechanism, on the basis that fastness of an original pneumatic system is retained, the rigidity and stability of the system are enhanced by means of a hydraulic portion, the defects that the pneumatic system is poor in stability, lowin structural rigidity and the like are overcome, and meanwhile the compliant capacity and the running precision of the system are improved. Compared with pneumatic, electric and hydraulic systems, the upper limb powered exoskeleton mechanism system has the beneficial effects of being high in power-to-mass ratio and power-to-volume ratio, high in responding speed, low in cost, clean, free of pollution and the like, the compliance of exoskeletons can be improved, and the total weight of the system is reduced.

The invention discloses a networked control system fault detection method based on neural network prediction, which comprises four steps of RBF neural network system building, system fault detection function building, system stability judgment and operation and system fault judgment and operation function building. The system building and operation process is simple, the operation efficiency and the operation precision are relatively high, an improved RBF neural network prediction controller is adopted to effectively predict system output data information, and thus, bad influences on the system by packet loss can be effectively cancelled, errors are smaller and training times are reduced through adjusting learning efficiency on the basis of adopting feedback correction on the obtained predicted output value for correction, and better convergence and quicker prediction speed can be obtained. Meanwhile, when fault happens to the system, happening of the fault can be quickly detected according to a designed fault observer and a judgment criterion.

The invention provides an automatic sampling mechanism of an analytical instrument, comprising a rack; the rack is provided with a first stepped motor, a pipette drive device and a liquid collecting box, wherein, the output shaft of the first stepped motor is provided with a rotary table; a plurality of test tube fixing holes are evenly arranged on the edge of the rotary table; the pipette drive device is provided with a pipette which is connected with a liquid sucking pump through a conduit; the liquid collecting box is provided with a detection cup transmission device which is provided with a plurality of detection cups; a reagent filling tube and a measuring electrode are arranged above the liquid collecting box; the reagent filling tube is connected with a reagent container through a liquid adding pump; and the bottom of the liquid collecting box is provided with a water outlet which is connected with a waste liquor collecting tank through a pipeline. The automatic sampling mechanism provided by the invention has the advantages of high operation precision, rapid sampling speed, simple structure and low cost.

A material grinding and conveying module comprises a conveying platform composed of grid bar assemblies, a grinding device arranged above the conveying platform and a supporting frame. A first motor drives a first driving mechanism to drive the conveying platform to do reciprocating synchronous circular motion to bear and propel materials to advance; the grinding device comprises a grinding platform and a second driving mechanism; a second motor drives the second driving mechanism to drive the grinding platform to do reciprocating type synchronous circular motion perpendicular to the pushing direction of the materials to grind and scrape the materials; the second motor alternately performs forward rotation and reverse rotation, and the forward rotation time is equal to the reverse rotationtime. A drying chamber comprises a material grinding and conveying module, and the number of the material grinding and conveying module is one or more than one which are stacked. The grinding platform conducts grinding in the forward direction and the reverse direction, materials can be more evenly distributed on the conveying platform, the evaporation area is increased, and the drying efficiencyis improved.

The invention discloses a large-area grating ruling cutter frame system, relates to the technical field of grating ruling, and solves a problem that the long-term operation stability of a cutter is difficult to be ensured because connection between a sliding block and a cutter frame mounting plate is of a hinge structure and an axial gap error exists between a rotating shaft and a shaft sleeve of the hinge structure. The large-area grating ruling cutter frame system comprises a glass guide rail, a sliding block, a connecting rod, a ruling cutter frame and a cutter frame mounting frame, wherein the sliding block slides along the glass guide rail, the sliding block is of an all-closed hollow shape, sleeved on the glass guide rail and provided with guide sliding feet and elastic sliding feet, and the guide sliding feet and the elastic sliding feet are all contacted with the external surface of the glass guide rail; the connecting rod is connected with an external driving mechanism and the sliding block, and the driving mechanism pushes and pulls the connecting rod so as to drive the sliding block to slide along the glass guide rail; and the cutter mounting plate is used for mounting a cutter frame, the upper end of the cutter frame mounting plate is fixedly connected with the sliding block, and the lower end of the cutter frame mounting plate is provided with the guide sliding feet. The large-area grating ruling cutter frame system is conducive to reducing the scribed line position error during grating ruling and improving the large-area grating ruling precision.

The rotary compacting instrument includes frame, bottom plate, top plate, elevating oil cylinder on the bottom plate, fixed testing drum with backup board connected to the output shaft of the elevating oil cylinder, compacting oil cylinder on the backup board, pressing head in the upper part of the frame, pressing head oil cylinder on the top plate, pressing disc fixed to the output shaft of the pressing head oil cylinder, and downward extending pressing rod in the lower part of the pressing disc, with the top plate having hole corresponding to the pressing rod. The present invention has rotary compacting to simulate the practical condition for wheel to roll the road surface and can obtain practical experiment data.

The invention discloses a double-end saw structure with any tilt angle. The double-end saw structure comprises a base, supporting seats, cutter box structures arranged in the supporting seats, rotating shafts arranged on the supporting seats through bearing pedestals and rotating power devices. The cutter box structures are arranged on the rotating shafts, and the rotating shafts and the rotating power devices are in transmission connection through fan-shaped rotating mechanisms. Fan-shaped rotating gears are arranged to be used for driving cutters to precisely rotate, the rotating precision of the cutters can reache 0.1phi according to the different moduli of fan-shaped gears, and the rotating precision of the cutters is improved. Brake mechanisms for the fan-shaped transmission gears are arranged, so that residual buffer force is prevented from influencing the angle division precision of the cutters. Linear rails are adopted, so that moving stability of the whole structure is improved, friction is reduced, and noise is lowered. The whole bottom beam structure is reinforced through a span beam manner and cross sleepers, the moving precision and the running speed are improved, and machining scraps can be removed conveniently. The tilt tooth transmission structure is adopted, so that the running torsional moment and the running precision are improved, and the speed is improved.

The invention provides a nucleic acid extractor which comprises a base, an outer shell connected with the base, and a main body which is positioned inside the outer shell and installed to the base, wherein the main body comprises a first motor set, a second motor set, a third motor set and an operating console fixed to the base; the first motor is fixed to the base; the second and third motor sets are driven by the first motor set and can move relative to the base; and the operating console comprises a clamp for automatically fixing a deep-hole plate and a heater for heating the deep-hole plate. The nucleic acid extractor has the advantages of high nucleic acid extraction efficiency, high operation precision and high stability.

A rail double-power working vehicle, comprises a vehicle body, a bogie, a machine room and a working system, wherein a traction motor is installed on the bogie, and the traction motor is connected with a vehicle shaft gear case fixed on a bogie wheel pair, to drive the wheel pair by the gear case for walking; a power transmission system is composed of the traction motor, an electrical storage device, an electrical storage device management system, an overhead line system power supply device, an auxiliary invertion power supply, a traction inverter, a vehicle operating device and a power system controller; the electrical storage device, the electrical storage device management system, the overhead line system power supply device, the auxiliary invertion power supply and the traction inverter are fixed on the vehicle body; and the vehicle operating device and the power system controller are installed in a driver's cab, and the driver adjusts the power system controller by the vehicle operating device, thereby controlling the whole vehicle. The rail double-power working vehicle of the invention can individually run when supplied with power by the overhead line system power supply device, and can also individually run when supplied with power by the electrical storage device. Electricity of the electrical storage device can satisfy a daily working demand of the working vehicle, can reduce noise and discharge, can protect environment, and can save energy.