1243results about How to "Guaranteed position" patented technology

The invention discloses a track vehicle rim and tread flaw detection probe assembly system. The track vehicle rim and tread flaw detection probe assembly system comprises a tread flaw detection probe assembly and a rim flaw detection probe assembly. The tread flaw detection probe assembly leans on the tread of a wheel through a mechanical arm; the rim flaw detection probe assembly leans on the rim surface of the wheel through the mechanical arm; the tread flaw detection probe assembly can automatically detect wheel tread and rim defects from the tread in an online mode and is high in detection efficiency, accurate in detection result, simple in structure and convenient to use and operate; the rim flaw detection probe assembly can automatically detect wheel rim surface and tread detects from the inner lateral side of the rim in on online-mode and is high in detection efficiency, accurate in detection result, simple in structure and convenient to use and operate.

The invention relates to a manufacturing method for superlow shrinkage type PET industrial yarn, which is characterized in that the superlow shrinkage type PET industrial yarn is manufactured through selecting and controlling cooling conditions, and the technological process is as follows: hyperviscous melting to polyester raw materials, metering, spanning, cooling, oil supplying, stretching, hot shaping, and reeled forming. For lowing the irregularity and shrinkage percentage of fiber, a slow cooling device is arranged in the production of industrial yarn, a precooling device adopted is a hollow stepped ring-shaped belt comprising an upper part and a lower part, through holes with the diameters of 5 to 7 mm are uniformly distributed in the upper part of the ring-shaped belt, through holes with the diameters of 3 to 4 mm are uniformly distributed in the lower part, and the hole arrangement densities are the same. The natural target of the PET industrial yarn is as follows: the fracture strength is equal or greater than 7.0 cN/dtex, the breaking elongation is 20.0 plus or minus 1.5 percent, and the dry heat shrinkage percentage under the test conditions of 170 DEGC, 0.05cN/dtex reaches 1.9 plus or minus 0.25 percent.

The invention discloses a visual-sense-based aircraft position and attitude determination method under a mark-free environment. The method comprises the following steps of: detecting characteristic points or characteristic blocks, and confirming the characteristic points or the characteristic blocks under the condition that a communication signal and an external positioning signal are good; detecting the characteristic points or the characteristic blocks again under the condition that the communication signal and the external positioning signal are blocked or can not be used; and matching the characteristic points or the characteristic blocks detected in the step above with the characteristic points or the characteristic blocks to confirm the position and the attitude of an aircraft. According to the method, under the condition that the communication and positioning signals are blocked, and geographic information of a fly region lacks, the position and the attitude of the aircraft can be exactly determined by an imaging system carried by the aircraft, and the guarantee can be provided for the safe fly of the aircraft. Furthermore, the precision can be further improved by using the method in combination with a sensor such as a gyro, a distance measurement machine and an inertia measurement unit, and the autonomous navigation of the aircraft can be carried out in combination with the method.

The invention discloses a method and device for formation aiming at multiple intelligent agents, wherein the method comprises the steps that a corresponding virtual leader is configured for each of the multiple intelligent agents; and each intelligent agent is made to track the corresponding virtual leader in limited time according to preset control rules, so that a formation pattern of the multiple intelligent agents can be formed. The method disclosed by the invention configures the corresponding virtual leader for each intelligent agent, makes a speed and a position of each intelligent agent consistent with a speed and a position of the corresponding virtual leader in the limited time according to the preset control rules and tracks the corresponding virtual leader so as to form the formation pattern of the multiple intelligent agents, so that a certain relative position among the multiple intelligent agents can be ensured, and formation pattern disordering caused by tracking errors which are accumulated by multiple times of formation pattern conversion can be avoided.

The invention relates to a rotary type opening-tying and cramping integrated device. The device includes a main rack, a bag opening and compacting device arranged at the bottom of the main rack for supporting the bottom of a fungi bag and driving the fungi bag to move up and down or rotate, a bag grabbing device arranged at the upper part of the main rack for being matched with the bag opening and compacting device to grab the bag opening on the top of the fungi bag, and an opening-tying and cramping device arranged at the upper part of the main rack for being matched with the bag grabbing device to tie the opening of the fungi bag and cramp. The device not only can seal the fungi bag by an aluminum nail after rotating the bag opening with better fungi bag sealing effect, can also can automatically compress a culture medium in the fungi bag to allow the fungi to be well contacted with the culture medium; in addition, automatic seal of the opening of the fungi bag is achieved, the work efficiency is greatly improved, and the production cost is reduced.

The invention discloses a pre-gluing machine of a bolt. The machine is characterized in comprising a gluing head, a gluing opening turning on-off mechanism, a pushing mechanism, an electric control device system, a glue storing cylinder and an adjusting component, wherein the glue storing cylinder is connected with a glue inlet of the gluing head; the gluing head comprises a baffle ring of an opening of a gluing cavity, a gluing cavity sleeve, a gluing cavity sleeve seat, a pushing rod, a gluing cavity, a gluing opening and a glue storing cavity; an annular gluing opening is formed between the baffle ring of the gluing cavity and the gluing cavity sleeve; the pushing mechanism and the gluing opening turning on-off mechanism respectively comprises a gas cylinder; the gluing opening turning on-off mechanism and the pushing mechanism are driven by the gas cylinders to realize the sequential linkage; the pushing rod gradually and axially pushes a bolt of a work piece; glue liquid is peripherally, axially and continuously injected among screw thread teeth of the bolt of the work piece from the gluing opening along the bolt of the work piece; and the adjusting component can adjust the action position of the pushing rod, the turning on-off position of the gluing opening, the opening width of the gluing opening, and the opening pressure of the gluing opening. The pre-gluing machine can peripherally, axially and fast inject the glue into an elastic die cavity, can evenly and exactly glue, guarantees the gluing length and position, and guarantees the quality.

The invention discloses an integral forging near net shaping process for a triple gear block. The process is characterized by comprising the following steps of: blanking and preparing blank; extruding a handle part in a forward direction; pre-upsetting; extruding to obtain a small gear; performing spheroidizing; performing saponification of phosphorus; and extruding to obtain a large gear. The adopted technological scheme has the advantages that: (1) the triple gear block is subjected to integral forging near net shaping; (2) a bevel gear is pre-set, and a material at a tooth space is extruded out, so that the disadvantage of folding caused by pressing a spoke wheel during rear-pass warm forging is avoided; (3) a large straight gear is obtained through cold extrusion, and positioning orientation is adopted, so that the coaxiality and the position of a bevel gear mold and a large straight mold are guaranteed; and by using a lower pressure block, a spoke plate is prevented from being deformed due to gear extrusion, the disadvantages of gear root bending, gear face galling, and damage to a gear mold are eliminated, and in the tooth profile, the undercutting caused by hobbing is avoided.

The invention discloses a process apparatus for fixedly welding a camber profile frame, comprising at least three groups of parallel welding and positioning devices for supporting rectangular frames to be welded. The welding and positioning device comprises a base module (1) movably and fixedly connected with a universal platform, the base module (1) is respectively provided with a port positioning module (2) and a pressing module (3) for positioning the upper end face and the lower end face at two sides of the rectangular frame camber profile (5), the symmetrical central line of the base module (1) is further provided with a frame edge positioning module (4) used for flexibly positioning the two sides of the rectangular frame. By adopting the modularized assembly welding and positioning device with the combined structure, the large rectangular frame with the length of 10 meters and the camber profile are correctly positioned on the module, thereby realizing the replaceable performance of welding and positioning, the universalization of the platform, and the physical dimension seriation, the parameterization and the universalization of the welding and positioning module. The invention can be movably and fixedly connected with the universal platform, thereby greatly reducing the idleness ratio of tools and the space occupation during the idleness time.

The invention relates to a method for shaping sheet with negative angle, wherein said method comprises extending the sheet, to form at least two crossed surfaces, shaping the extended sheet; said extending process makes one surface form convex part; and the shaping process makes another surface form negative angle, and the convex part is filled into the negative part. Therefore, the invention can effectively control the extending deformation of sheet, to improve the quality.

The invention provides a feeding system of a toothbrush bristle planting machine and relates to the field of toothbrush manufacture. The feeding system comprises a conveyor belt system, a separating and feeding system, a steering and turnover system and a grabbing and transfer system, wherein the conveyor belt system, the separating and feeding system, the steering and turnover system and the grabbing and transfer system are sequentially connected in the X direction. The conveyor belt system comprises a conveyor belt moving in the X direction, a conveyor belt driving device, a conveyor belt rack and a feeding bin arranged in the Z direction. The separating and feeding system comprises a feeding system, a separating system and a pair of side baffles. The side baffles are fixedly connected and are respectively parallel to a ZX plane. The steering and turnover system comprises a rack, a walking system, a steering system and a turnover system. The grabbing and transfer system comprises a support arranged in the Z direction, a beam arranged in the Y direction, a transfer system and a grabbing system. The feeding system further comprises a control system. In conclusion, a single toothbrush can be fed to the toothbrush bristle planting machine by the feeding system, it is effectively guaranteed that the position of a toothbrush handle of the toothbrush, the forward face and backward face of the toothbrush handle and the facing direction of a toothbrush head are uniform, and therefore the purpose that the bristle planting effect and the bristle planting speed of the toothbrush bristle planting machine are effectively guaranteed is achieved.

The invention provides a miniaturized high-frequency single-pole six-throw coaxial mechanical and electrical switch which is composed of a control circuit assembly, an electromagnetic drive assembly, a microwave signal transmission channel assembly and an outer shell part. The control circuit assembly controls the fact whether currents pass through a coil in the electromagnetic drive assembly or not, once the currents pass through the coil, the coil generates a magnetic field, generated electromagnetic force enables a fixed terminal to attract a movable terminal to drive an ejection rod to move, and therefore a transmission reed is pushed to move. Accordingly, a microwave signal input end and a microwave output end are connected or disconnected, connecting of any one of a middle connector or six peripheral connectors is controlled to be achieved. The above scheme is used, the advantages of being small in size and high in efficiency are achieved, and the special requirement for a miniaturized mechanical and electrical switch of a switch matrix in an automatic testing system can be met.

The invention discloses an adaptive control method for multiple humanoid robots in the case of an immeasurable speed, which comprises the steps of first, building a mathematical model of the multiplehumanoid robots for cooperatively grasping an object; second, designing a state observer; and third, designing a neural network adaptive controller to control the humanoid robots. According to the invention, influences of driving saturation are eliminated through constructing an auxiliary system in allusion to a humanoid robot system with input saturation; the input of the neural network is enabled to be maintained within a bounded compact set range through introducing an obstacle Lyapunov function, and the normal running of the neural network is ensured; and the state observer is introduced to estimate the speed, the controller design is performed in the case that the speed of the object is immeasurable, and an unknown constant matrix W2 is converted into an unknown scalar virtual parameter c, so that only one adaptive parameter needs to be adjusted online, and the computational burden is greatly reduced.

An electric armrest of an automobile seat comprises a top cover and a bottom cover, wherein the top cover is separated from the bottom cover, a mechanical transmission mechanism is arranged between the top cover and the bottom cover, the top cover is connected with a moving end of the mechanical transmission mechanism, the mechanical transmission mechanism is connected with an output shaft of an electric motor, and a control end of the electric motor is connected with a control circuit. A self-locking structure is arranged inside the mechanical transmission mechanism. The mechanical transmission mechanism comprises a parallel four-rod mechanism and a driving mechanism, the driving mechanism comprises a transmission device and a sliding block, a fixing support and a guide rail are arranged on the bottom cover, and the transmission device is composed of a worm-and-gear structure and a screw nut pair two-stage transmission mechanism. The control circuit is arranged between the top cover and the bottom cover and is connected with a key plate, a control line and a power line. By the aid of the electric armrest, the height of the top cover can be adjusted at random, so that the height of the armrest can be adjusted, the comfort of driving is improved, and the fatigue during long-term driving is avoided.

The invention provides a method for processing a shifting fork of automobile parts, which comprises the following steps: according to the requirements of a drawing, drilling a through hole and lathing the end face and downside surface of a convex plate; boring the through hole; raising a core rod and lathing the end face of the convex plate; milling the planes of two feet; milling openings; drilling, expanding and reaming two phi8<+0.045> holes on the outer circles of the machined hole; performing heat treatment through carbonitriding till the surface hardness reaches 59 to 63 HRC and the effective hardened depth reaches 0.1 to 0.3 millimeter; honing inner holes, wherein the position degree between the inner holes and the two phi8 holes is required to be less than phi0.1; testing with corresponding measuring tools and apparatuses; and deburring, washing, applying oil on, packaging and warehousing the shifting fork. The method fully guarantees the product in terms of symmetry, position degree, work hardness and high quality, greatly prolongs the service life of the product and meets the requirements for the rapid development of the automobile industry.

The inventive connecting part comprises a base (2) fixable to a support and to a perforated plate (4) for fixing of a structure or another connecting part. Said plate (4) comprises a first perforation and at leas one second perforation (12) in the form of a longitudinal optionally curved hole, which is oriented in such a way that it is substantially inclined with respect to the tangent of a circle whose center is the point of the first perforation and which passes by the point of the second perforation (12).

The invention discloses a glue joint connecting structure of a composite round pipe. The glue joint connecting structure is composed of the composite round pipe (1) and a metal part (2) connected with the composite round pipe (1) in a glue joint manner. A plurality of glue pouring ports (6) are formed in the joint of the composite round pipe (1). A groove for installing a first annular sealing ring (3), a glue groove (4), a glue guiding groove (5) and a groove for installing a second annular sealing ring (7) are sequentially machined in the joint of the metal part (2) from left to right. According to the glue joint connecting structure, the glue joint defect of composites can be greatly reduced, the glue joint connecting performance and reliability of the composites are improved, and wide application prospects are achieved.

The invention provides a molding die for fiber reinforced resin-based composite vanes. The invention relates to molding die for composite vanes, which aims to solve the problems that the prior composite vane molding die is insufficient in die assembly and too tight to seal die cavities, can not discharge air in a product, can not guarantee the geometrical size of the airfoil surface of a vane and the relative position of a vane handle, and causes that the product is large in porosity or has air holes on surface. A parting surface of an upper die and a lower die is provided with an upper model groove; a parting surface of the lower die and the upper die is provided with a lower model groove; a first positioning pin is arranged in a first positioning pinhole and a third positioning pinhole; a second positioning pin is arranged in a second positioning pinhole and a fourth positioning pinhole; and a gap between the parting surfaces of the upper die and the lower die is configured as a material overflow groove. The material overflow groove can ensure that the upper and lower dies are sufficient in die assembly; die cavities are incompletely sealed; the air in the product can be smoothly discharged; the geometrical size of the airfoil surface of the vane and the relative position of the vane handle are guaranteed; and the product is good in surface quality.

The invention discloses a satellite communication-based earthquake real-time monitoring system, which comprises a control center sub-system, a monitoring center sub-system, a displacement sensing sub-system, a solar power supply sub-system, a satellite global positioning system (GPS) high-precision positioning sub-system, a satellite GPS precision time service sub-system and a very small aperture terminal (VSAT) satellite communication sub-system. The three-dimensional measurement of earthquake waves in horizontal and vertical directions is realized by displacement sensor technology; equipment at all monitoring points is supplied with solar power; the three-dimensional navigation and positioning of the monitoring points are realized by using the GPS high-precision positioning technology with high anti-interference; the GPS precision time service system is used, so that the control center and all the monitoring points have the synchronous clock signals with the same frequency and the same phase; and the seamless coverage and networking of the monitoring system across China are realized by using the VSAT satellite communication technology.

The invention relates to metal cutting machinery and particularly relates to a precision cutting head for an inner-hole keyways. The cutting head comprises a cutter guide rail, a feeding rod, a cutter rod, a blade, a clamping block, an embedded lining, a work table, a fixed screw, a pressing screw, a precision dividing disc and a machine seat. The precision cutting head adopts a new processing concept to create a processing method which integrates the cutter with the clamper. The cutter guide rail is provided with a rectangular precision groove. The feeding rod and the cutter rod which can slide upwards and downwards along the rectangular precision groove are installed in the rectangular groove according to the precision sliding fit tolerance. The heads of the feeding rod and the cutter rod are provided with inclined surfaces which are mutually adhered with each other, and the slopes of the inclined surfaces are the same. The feeding rod and the cutter rod are driven by an external power source. A molded blade of which the width is the same as the keyway is installed on the cutter rod. The embedded lining of the cutter guide rail is embedded in the inner hole of the working piece to positioning, and the working piece is fixed by a manner of processing the embedded lining through the pressing bolt. The precision cutting head has the advantages of simple installation and clamping, accurate centering, high processing precision and high processing efficiency, so that the precision cutting head can be applied to the mechanical processing industry, in particular to the precision machinery industry.

The invention relates to a mean-value coupling error-based limited time position synchronous control method of a multi-motor system. With regard to the multi-motor system considering disturbance influence, a position tracking error and a mean-value coupling error are combined to obtain a composite error, a sliding-mode synchronous control method of a self-adaptive rapid terminal is designed by thecomposite error and by combining the sliding-mode control method and a self-adaptive method of the rapid terminal, the composite error is used for simultaneously ensuring the position tracking performance and the synchronous performance of the system, the terminal sliding-mode control method is used for ensuring rapid and stable convergence of the system, and the self-adaptive method is used forestimating unknown disturbance of the system. The invention provides the control method which can be used for simultaneously ensuring the position tracking performance and the synchronous performanceof the system and effectively compensating the unknown disturbance of the system, and rapid and stable control of the system is achieved.