31results about How to "Positioning method is reliable" patented technology

The present invention discloses an ion thruster beam test system based on a Faraday probe array. According to the present invention, the Faraday probes are arranged in a surface array manner, all probe test signals are acquired synchronously, the data information amount is large, and the whole test and the data processing can be finished usually in only several minutes. A shielding outer sleeve is arranged at the outer side of an ion current catch tray of each Faraday probe and is used to shield the stray ions flying to the side surface of the ion current catch tray, thereby guaranteeing that the ions are only collected on the right side of the ion current catch tray. The shielding outer sleeve is directly and electrically connected with a disc-type metal support by the metal contact, so that a bias voltage can be supplied to the disc-type metal support by just one conducting wire, and the biggest advantages of the mode are that: the number of the probe leads is reduced substantially, the structure is simplified, and the reliability is improved.

Disclosed is a hearing compensation actuator capable of bidirectional positioning. The actuator comprises a lead wire, an embedded member, a fixation member and a coupling rod. The actuator employs a piezoelectric stack as a vibration element, is miniaturized in structure, is fixed at a scull through the fixation member and provides a supporting condition for the embedded member; the embedded member realizes axial positioning through threaded connection and realizes radial positioning through spherical pair connection, and a bidirectional positioning function facilitates operative implantation; and the length of the coupling rod is adjustable, and the coupling rod can act on different ear auditory ossicles and meets the treatment requirement for sensorineural and conductive hearing damage. The hearing compensation actuator provided by the invention is reasonable in design and simple in structure, thereby being applied to optimized design of a hearing-aid apparatus.

The invention relates to a diagonal hole drilling mold for a nozzle ring of an engine. The diagonal hole drilling mold comprises a base, supports, a positioner, a mandrel, a bearing, a tangential clamping cover, a bearing cap, an indexing plate and the like. The left and right supports are fixed to the base through pins and bolts, the bearing is mounted in center holes in the upper ends of the left and right supports, the mandrel is connected with a positioning plate through the pins and the bolts and is placed in bearing holes at two ends separately, the bearing cap is located at the upper end of a bracket, the tangential clamping cover is located between the bearing cap and the bearing, and one end of the tangential clamping cover is connected with a handle nut. The mandrel is locked during work. The indexing plate is connected with a lug at the left side of the positioning plate through the pins and the bolts, and a special angle is formed between the indexing plate and the lug. When a drilling mold works, a diagonal hole is processed from the front face and the back face by positioning the drilling mold through positioning holes in two ends of the indexing plate position. Positioning rings and the positioning plate are connected through the pins and the bolts, and the positioning is achieved by the cooperation of an excircle and an inner hole of the nozzle ring. The diagonal hole drilling mold has the advantages of being high in positioning precision, convenient to operate, high in practicality and the like, and can be used for processing complex diagonal holes.

The invention discloses a wireless sensor network node positioning method of an ecological niche grey wolf optimization DV-Hop algorithm. The method comprises: a beacon node broadcasting a beacon to anetwork, the beacon comprising position information and hop count information of the beacon node, and the beacon being spread out in a flooding mode in the network; after obtaining the position information and the hop count, each node estimating the average distance of each hop between the nodes, and then estimating the distance between the beacon nodes; the beacon nodes refining the average distance per hop by using a ecological niche grey wolf optimization algorithm, and changing the fitness value of the beacon nodes by comparing the distances between the beacon nodes with the ecological niche radius; calculating the position of the unknown node through the beacon node, recording the coordinate of the unknown node, and converting the calculated position information of the unknown sensorbeacon node into the position information of the known sensor beacon node. The method has the advantages that the global search capability can be improved, the positioning error is reduced, and the positioning precision is improved.

The invention discloses a mounting tool and an assembling method of an array structural permanent magnet. The mounting tool of the array structural permanent magnet comprises a guide sleeve and a pushing piece, wherein the guide sleeve is communicated with a mounting tube of the permanent magnet in a butt joint manner, the pushing piece is used for pressing a permanent magnet block in the guide sleeve into the mounting tube, one end of the pushing piece is sheathed into the guide sleeve and can push the permanent magnet block in the guide sleeve along the length direction of the guide sleeve. The assembling method comprises the steps of communicating the guide sleeve and the mounting tube in the butt joint manner; placing the permanent magnet block into the guide sleeve, and pushing the permanent magnet block into the mounting pipe by the pushing piece. The mounting tool and the assembling method have the advantages that the operation is simple and convenient, safety and reliability are realized, and the permanent magnet block is effectively mounted.

The invention aims to provide a motor rotor positioning system for a hybrid vehicle and a positioning method thereof, which are suitable for the characteristics of a vehicle production line. The positioning system consists of a detection unit and a calibration unit, wherein the detection unit comprises a power device capable of driving a motor to be positioned to rotate, a detection host computer, a bar code scanner, a zero crossing detection device and a motor rotor position sensor arranged on the motor to be positioned, and the detection host computer is connected with the power device, the bar code scanner, the zero crossing detection device and the motor rotor position sensor; the calibration unit comprises a bar code scanner and a calibration host computer, and the calibration host computer is connected with a motor controller of the motor to be positioned; and the detection host computer and the calibration host computer are connected with a database server through a network respectively. The detection host computer detects the position angle value of the motor rotor through the zero crossing detection device and the motor rotor position sensor, transmits the position angle value to the calibration host computer, and further writes the position angle value into the motor controller so as to finish the positioning of the motor rotor.

The invention discloses a novel dual-blade-groove cutting tool. The cutting tool comprises a tool bar and two profiling cutting blades; the two profiling cutting blades are installed on a same workingsurface of the end part of the tool bar; a main blade bit of a working end of one of the profiling cutting blades is skew to the left by an angle alpha, and a main blade bit of a working end of the other profiling cutting blade is skew to the right by an angle alpha; and the two profiling cutting blades are symmetrically distributed, and alpha is an acute angle. Compared with a standard groove cutting tool, the contacting area between the cutting tool and a cutting workpiece is reduced in the feeding process along the radial direction, so the radial cutting force is reduced; groove processingis conducted by back-and-forth and layer-by-layer feeding of the cutting tool along the axial direction, so the cutting force generated by processing is mainly axial and the radial cutting force is greatly reduced; and the problem of vibration in the process of processing is solved, the processing precision is improved, and processing efficiency is conveniently improved.

The invention relates to a pyrography machine lower plate seat capable of automatically adjusting levelness, which comprises a horizontal bottom plate, two parallel sliding chutes are formed in the top end of the bottom plate, a supporting seat in sliding connection with the sliding chutes is arranged in the sliding chutes, and a drawing board in clamping connection with the supporting seat is arranged at the top end of the supporting seat; a plurality of roller grooves are formed in the bottom end of the supporting seat in the length direction of the sliding grooves, rollers are arranged in the roller grooves, and shaft sleeves connected with the roller grooves in an up-down sliding mode are arranged between the roller grooves and the rollers. According to the pyrography machine lower plate seat capable of automatically adjusting the levelness, the rollers moving up and down in the roller grooves are used for keeping parallel to an upper plate, the situation that the lower plate seat cannot be tightly attached to the upper plate after being heated and deformed is effectively prevented, and the pyrography effect is guaranteed; the base plate is supported by a base capable of automatically adjusting the horizontal position, the base corrects the height difference of the four corners of the base by recognizing the inclined direction, the adjusting mode is accurate and reliable, and the levelness of the base and the drawing board on the base is effectively guaranteed.

The invention provides a transferring and loading platform flexible clamp positioning device. The device comprises a transferring and loading platform, a rail, a motor, guide rollers, guide plates, roller bolts, long kidney-shaped holes and the like. The transferring and loading platform is provided with a plurality of guide plates, and the length of each guide plate is larger than the width of the platform; the guide rollers are installed on one side of the guide plates and uniformly arranged in the length directions of the guide plates; the long kidney-shaped holes are formed in the bottoms of flexible clamps and are positioning holes of the clamps; the roller bolts are symmetrically arranged on across corners of the transferring and loading platform; each roller bolt is consistent with the center of the corresponding long kidney-shaped hole in the height direction and in clearance fit with the corresponding long kidney-shaped hole. Compared with the prior art, the rollers and the guide plates are used for guiding, the positioning mode that the roller bolts are matched with the long kidney-shaped holes is adopted, the device is simple in structure and flexible in operation, can rapidly move and guide the clamps and greatly improves the positioning accuracy of the clamps, and the positioning mode is more flexible and reliable.

The invention relates to a multi-vehicle edge rolling flexible switching system which is composed of a center working station and a plurality of conveying line mechanisms. Each conveying line mechanism comprises a sliding table unit and a rail unit, wherein the sliding table unit is installed on the rail unit and moves along the rail unit, the sliding table unit is provided with a positioning component, and the positioning component is composed of a pair of positioning rollers provided with gaps. Compared with the prior art, a flexible rail system is used for edge rolling of vehicle body doorcovers, self driving mechanisms arrive the center working station to be accurately positioned, robot edge rolling work is achieved, equipment increase from one vehicle type to four vehicle types according to plan needs can be achieved without influencing production, and achievement can be achieved without line stopping; and a gear motor is used for driving the sliding table units to move to the working position, then a positioning shaft is used for locking the sliding table units, vehicle type switching at random can be achieved, the occupied land is small, the speed is high, and noise is low.

The welding gun flexible positioning device for the robot is characterized by comprising a trapezoid support, a cross beam support, a welding gun positioning unit, a dustproof cover, a rotating air cylinder, a welding gun supporting unit, a welding gun female head for locking a welding gun through a welding gun positioning pin, a position sensor for detecting the connection relation between a gun replacing disc male head of the welding gun and a gun replacing disc of the welding gun female head, and a position sensor for detecting the position of the welding gun female head. Positioning is simple and reliable, and operability is high; the positioning method comprises the steps that the two welding guns are both hung on the welding gun flexible positioning device, the robot drives the gun replacing disc male head to move to the position near the device, the robot drives the gun replacing disc male head to be inserted into the female head on the welding gun, welding gun positioning locking and site specifications are relieved, and the 6s site quality management regulation is met.

The invention relates to a probe electrospray ionization and mass spectrometry combined living body analysis system. The system comprises a probe electrospray ionization (PESI) system, a spray system and a mass spectrometry system; the spray system comprises a solvent tank, an infusion pump, a compressed air or nitrogen tank, an atomizer, a fog drop screener, a spray pipe and a columnar fog atmosphere; the system further comprises a microscopic positioning system. According to the spray system, continuous and stable columnar mist is generated, and efficient spraying and ionization are achieved; meanwhile, the spray pipe is far away from a metal probe, so that the internal space is effectively released, and the system can have an operation space and is convenient to use; the spray system adopts a conventional liquid chromatography pump to pump out the solvent, and a micro-injection pump is not needed, so that the cost is saved; the system is not limited by a used solvent and is wide in application range; the microscopic positioning system can analyze and measure organs of tiny animals of insects, and a positioning method is accurate and reliable.