20results about How to "Achieve size" patented technology

The invention relates to the technical field of non-electrical variable adjusting systems, and discloses a linear guide rail grinding precision adjusting system and method, and the linear guide rail grinding precision adjusting system comprises a linear guide rail grinding parameter acquisition module, a linear guide rail grinding result analysis module and a linear guide rail grinding adjusting module. A size measuring device is used for dynamically collecting single-time grinding actual size parameters of the outer surface of the linear guide rail in real time, single-time grinding state analysis parameters of the outer surface of the linear guide rail are accurately evaluated, and standard collection of the actual size and the actual state of grinding of the linear guide rail is achieved. According to the method, linear guide rail outer surface grinding single-time machining error size parameters are scientifically measured, linear guide rail outer surface grinding single-time machining grinding feed amount adjusting parameters are dynamically constructed, linear guide rail grinding size errors and adjusting size parameters are intelligently and efficiently generated, and the linear guide rail grinding precision and quality are improved.

The invention discloses an electric arc additive manufacturing method for assisting in titanium alloy grain refinement through coaxial ultrasound. The method comprises the following steps that firstly, an ultrasonic gun is installed on a welding gun in the mode that the ultrasonic gun and a tungsten electrode are coaxial; 2, fully cleaning the surface of the titanium alloy substrate, clamping and fixing the titanium alloy substrate in a to-be-welded area, and adjusting the tip position of a tungsten electrode to the initial position of material increase; thirdly, welding shielding gas is introduced in advance, and after the electric arc is stable, layer-by-layer stacked additive manufacturing is carried out on the titanium alloy substrate through a coaxial ultrasonic auxiliary method; and fourthly, the titanium alloy component obtained after additive manufacturing is completed is cooled and then taken down from the clamp, and the additive manufacturing process is completed. According to the method, the ultrasonic waves are introduced into the electric arc and the molten pool, the electric arc form can be effectively controlled, the fluidity of the molten pool can be effectively improved, then grain size refinement and distribution uniformity of the titanium alloy additive manufacturing component are achieved, the titanium alloy additive manufacturing component is strengthened, the mechanical property of the titanium alloy additive manufacturing component is improved, and the method has very important significance on titanium alloy electric arc additive manufacturing.

The invention discloses a guider blade polishing and supporting device, which belongs to the technical field of precision casting production, and comprises a workbench, the bottom end of a supporting rod assembly is hinged with the workbench, and the top end of the supporting rod assembly is hinged with a mounting piece; the limiting piece is used for penetrating through the supporting rod assembly and limiting the supporting rod assembly so as to limit the supporting rod assembly to rotate around a hinge point on the workbench. The push rod assemblies are arranged on the mounting part in an annular array mode, the first ends of the push rod assemblies are connected with the clamping part, and the clamping part is used for abutting against and pressing an inner hole of the guider. The profiling tool is used for being clamped into a blade gap of the guider and serves as a grinding reference. The profiling tool is clamped between the adjacent blades of the guider to serve as a grinding reference, the problems that in the grinding and finishing process of the blades of the guider, the size is out of tolerance and the consistency is poor are solved, meanwhile, the guider can be stably supported, and multi-directional position adjustment can be conveniently conducted.

The utility model relates to moxa -moxibustion auxiliary device technical field, specifically is a simple and easy type moxa stick ignition device, including the supporting plate, the lifting rod, the supporting plate middle part is provided with the through -hole, the lifting rod output end with the supporting plate lower extreme both sides articulate, the lifting rod output end with the articulation department of supporting plate is provided with the limit mechanism, the utility model sets up the supporting plate of opening through -hole, and sets up the lifting rod in the supporting plate lower extreme, can realize the regulation of supporting plate height, in order to adapt to the ignition source of different height, reach the best ignition height, through the rotary connection of lifting rod and supporting plate, and set up the limit mechanism at the articulation department of both, can conveniently realize the rotation of lifting rod, can be convenient for the storage of device when not using.

The utility model discloses a straight type temperature control valve which comprises a valve body, the valve body comprises a first connecting pipe and a second connecting pipe which are communicated left and right, a third connecting pipe is arranged between the first connecting pipe and the second connecting pipe, and a limiting pipe is installed in the third connecting pipe. A communicating groove is formed in the side, located in the third connecting pipe, of the limiting pipe, the communicating groove communicates with the interior of the limiting pipe, and a limiting piece movably sealing the communicating groove is installed in the limiting pipe. The valve has the advantage that the flow of fluid can be controlled.

The invention discloses a broadband filtering end-on-fire antenna. A top parasitic dipole, a middle parasitic dipole, a driving dipole and a bottom parasitic dipole act with the horizontal reverse current of an n-shaped dipole to form broadband low-fluctuation flat-top end-on-fire antenna. And the middle parasitic dipole, the bottom parasitic dipole, the driving dipole and the branch knots of the n-shaped dipole are utilized to form a filtering effect, so that broadband filtering and a broadband flat-top effect in an end-fire direction are realized, and loss, size and radiation efficiency can be considered at the same time.

The invention discloses a lithium battery aluminum shell size detecting and positioning device and method, belongs to the technical field of lithium battery accessory production, and aims to solve the problems that an existing detecting device is single in function and low in efficiency due to the fact that clamping needs to be conducted for multiple times, and an aluminum shell is prone to deformation. Four groups of clamping parts are symmetrically arranged on the support frame, and a bidirectional screw is used for driving a first clamping plate and a second clamping plate to synchronously clamp an aluminum shell from the inner side and the outer side, so that stable positioning is realized; the internal measuring part drives a distance sensor to rotate through a stepping motor and cooperates with an electric push rod to complete inner cavity size measurement. The external measuring part adopts a similar structure to realize outer wall dimension detection, the support frame is driven by the driving motor to lift, internal and external dimension continuous measurement under one-time clamping is realized, the device reduces positioning errors, avoids aluminum shell deformation, improves detection precision and efficiency, and is suitable for lithium battery aluminum shell production quality control.

The invention discloses a low-power-consumption MEMS constant-temperature crystal oscillator based on a diamond heat conduction layer, and relates to the crossing field of a micro electro mechanical system and a frequency control device. Comprising an MEMS resonator containing a diamond heat conduction layer and a heating element, the MEMS resonator containing the diamond heat conduction layer comprises a resonator chip and the diamond heat conduction layer, and the resonator chip and the diamond heat conduction layer are metallurgically bonded through a wafer-level bonding process. The area of the diamond heat conduction layer is matched with the heating area of the resonator chip; and the heating element is arranged in an area close to the diamond heat conduction layer and is used for outputting heat required by temperature rise of the resonator chip. The constant-temperature crystal oscillator is used for solving the technical bottlenecks that an existing constant-temperature crystal oscillator based on an MEMS resonator is too long in preheating time, high in power consumption, limited in frequency stability due to temperature gradient and the like.

The application discloses an iron-based raw material reinforced pig manure and rice straw mixed anaerobic fermentation device, and particularly relates to the technical field of anaerobic treatment, and comprises a fermentation tank, a groove cylinder, a moving block and a cover pressing piece. The upper surface of the fermentation tank is fixedly connected with the groove cylinder. The device further comprises: the moving block is arranged on one side of the groove cylinder; the cover pressing piece is installed on one end of the moving block, and is used for covering and pressing the top end surface of the groove cylinder when the anaerobic bacteria agent is put into the groove cylinder. The application has formed a complete closed loop process from the top cover, automatic positioning to in-situ verification, realizes the mandatory automatic verification before the anaerobic bacteria agent is added, eliminates the operation space of directly adding unqualified anaerobic bacteria agent by personnel violation, greatly improves the anaerobic treatment effect, and solves the problem of adding out of control caused by human subjective negligence, destroys the microbial activity and metabolic balance, and causes the significant decrease of the anaerobic treatment effect.

The present invention discloses a friction nano-electricity generating fabric and its application, belonging to the technical field of functional textile fabrics and friction nano-generators. The present invention is based on the re-organization design of woven fabrics and adopts a specific yarn configuration so that one side of the fabric is functionalized as an electrode and the other side acts as a dielectric material. When the dielectric material surfaces of two layers of fabric come into contact and then separate, based on the principle of friction nano-generators, friction charge transfer occurs between the interfaces, and electrons achieve transitions between the two, thereby generating a potential difference and current between the electrode materials on both sides, realizing the conversion of mechanical energy into electrical energy.

The utility model discloses a heat exchanger with a built-in pressure limiting device, which comprises a heat exchanger body, the heat exchanger body comprises a heat exchanger central tube body, a head end shell and a tail end shell, the head end shell and the tail end shell are respectively fixed at two ends of the heat exchanger central tube body, and perforated partition plates are fixed at two ends of the heat exchanger central tube body. Holes are formed in the perforated partition plates, the same water pipe is fixed to the one-to-one corresponding holes in the two perforated partition plates, sealing plates fixed to the perforated partition plates are fixed to the inner walls of the head end shell, pressing plates are fixed to the positions, close to the perforated partition plates, of the bottoms of the sealing plates, and base plates are fixed to the semicircular parts of the lower portions of the perforated partition plates. Through holes corresponding to the holes in the perforated partition plate are formed in the base plate and the pressing plate, and an adjusting piece is arranged between the base plate and the pressing plate in a tightly attached mode. According to the utility model, the quantity of water entering the water pipes in the central pipe body of the heat exchanger can be adjusted, the pressure of water entering each water pipe can be equally controlled at the same time, and equal control and synchronous closing or plugging are realized.

The invention relates to the technical field of a non-electric variable regulating system, and discloses a linear guide rail grinding precision regulating system and method, comprising a linear guide rail grinding parameter acquisition module, a linear guide rail grinding result analysis module, and a linear guide rail grinding regulating module; by adopting a dimension measuring device to dynamically collect the actual dimension parameters of a single grinding process of a linear guide rail outer surface, and accurately evaluating the single grinding process state analysis parameters of the linear guide rail outer surface, standardized collection of the real dimension and real state of the linear guide rail grinding process is achieved; scientifically measuring the single grinding process error dimension parameters of the linear guide rail outer surface, and dynamically constructing the single grinding feed adjustment parameters of the linear guide rail outer surface grinding process, intelligent and efficient generation of the linear guide rail grinding process dimension error and adjustment dimension parameters is achieved, and the precision and quality of the linear guide rail grinding process is improved.

The utility model belongs to the field of board card detection, and provides a board card size and hole site rapid detection device, the board card size and hole site rapid detection device comprises a measurement bottom plate and a column plate installed on the measurement bottom plate, the measurement bottom plate is provided with a plurality of clamping grooves, the bottom surface of the column plate is provided with clamping blocks corresponding to the clamping grooves respectively, and the column plate is provided with a plurality of clamping blocks corresponding to the clamping grooves respectively. The clamping blocks are clamped into the corresponding clamping grooves, electric calipers are arranged at the transverse position and the longitudinal position, right facing the stand column plate, of the measuring bottom plate, and a plurality of positioning stand columns are arranged on the top face of the stand column plate. According to the device, the hole site and the integrated size of the board card to be detected can be detected at a time, the detection efficiency is high, the whole detection process is time-saving and labor-saving, meanwhile, the stand column plate is connected with the clamping groove-clamping block of the measuring bottom plate, the stand column plate adaptive to different board cards can be rapidly replaced, complex adjustment is not needed, and detection of the sizes of the board cards of different specifications is achieved.

The invention discloses a power supply power line branching device, which relates to the technical field of power line branching, and comprises a splicing assembly used for splicing different numbers of branching devices. When the device is used, a power line penetrates into the branching sleeve and then penetrates through a circular channel formed by the branching clamps, the front side of the threaded adjusting sleeve is rotated, so that the threaded adjusting sleeve rotates in the splice plate and moves forwards, and meanwhile, the balls are driven to roll on the inner wall of the bucket-shaped groove and move from the wide position to the narrow position of the bucket-shaped groove; the adjusting block, the reinforcing rod, the moving block and the branching clamp are pushed to move, the power line is branched and fixed, and the size of a circular channel formed by the branching clamp is adjusted by adjusting the position of a threaded adjusting sleeve, so that the power line branching device adapts to power lines of different specifications; power lines of the same specification can be subjected to branching fixation at the same time, and power lines of different specifications can also be subjected to branching fixation at the same time.

The invention provides a preparation method of fusiform nanometer copper oxide, and relates to the technical field of powder nanometer material preparation, the method comprises the following steps: under the action of magnetic stirring, copper salt is prepared into a copper precursor aqueous solution, and alkali is prepared into an alkaline mixed solution; converting the copper precursor aqueous solution into copper-containing micro-nano aerosol by using a high-frequency ultrasonic dispersion device, and converting the alkaline mixed solution into mixed alkali-containing micro-nano aerosol; carrying out gas-phase confinement micro-area mixing on the copper-containing micro-nano aerosol and the mixed alkali-containing micro-nano aerosol to obtain a copper-alkali mixed solution, transferring the copper-alkali mixed solution into a polytetrafluoroethylene reaction kettle, and carrying out hydrothermal reaction to obtain a nano-particle solution containing a copper compound; and carrying out solid-liquid separation, washing, drying and roasting on the nano-particle solution containing the copper compound to obtain fusiform nano copper oxide powder. The problem that the fusiform CuO nanocrystal cannot be synthesized by using mixed alkali as a morphology control agent is solved.

The utility model discloses an air cleaning bladeless fan with a variable air duct, which comprises a flow divider, at least two air outlet duct inner side shells, at least two first gears, at least two second gears and a first driver, and the flow divider is provided with at least two output ports; the driving end of the first driver is connected to one of the first gears, the two first gears are meshed with each other and distributed in a bilateral symmetry mode, the two second gears are distributed in a bilateral symmetry mode and meshed with the first gears correspondingly, and the tops of the two air outlet duct inner side shells are rotationally installed on the second gears correspondingly. According to the scheme, the problems that in the prior art, the air outlet speed and the air volume of the air purification bladeless fan are adjusted by changing the length of the air outlet ducts, and the use flexibility is not high; and when the length of the air outlet duct is increased, the air resistance and noise of air outlet may be increased.

The invention provides a neck electrostatic protection device driven by friction high voltage. The neck electrostatic protection device comprises a power source, a friction power supply unit, a neckerchief body, a circuit management unit and a control unit. The friction power supply unit is driven by the power source to output high-voltage alternating current; the circuit management unit is connected between the friction power supply unit and the neckerchief body and outputs direct current needed for generating electrostatic adsorption; the neckerchief body comprises an electrostatic adsorption unit, and the electrostatic adsorption unit is composed of a plurality of first adsorption pieces and second adsorption pieces which are arranged in an array mode. The first adsorption pieces and the second adsorption pieces in the same row are sequentially and alternately arranged and overlapped, and every two adjacent adsorption pieces of the same kind in the same row and the same column do not make contact with each other. The first adsorption sheet and the second adsorption sheet which are overlapped generate an electrostatic adsorption effect under the driving of the direct current, so that the overall rigidity of the neckerchief body is changed, and the neck of a wearer is protected; the control unit is used for controlling the rotor rotating speed of the friction power supply unit and / or the direct current output by the circuit management unit.

This invention discloses a multimodal interactive monitoring system for psychiatric restraint straps, comprising an intelligent monitoring restraint strap, a bedside interactive terminal, and a nurse station interactive terminal. The intelligent monitoring restraint strap integrates a multi-source heterogeneous sensor group to collect multi-dimensional monitoring data from the patient. The processor extracts the spatial displacement vector trajectory of the wearing site based on the monitoring data. When slippage is detected, it evaluates and reallocates the dynamic confidence level of the sensor group, and uses the reallocated data to jointly infer the local blood supply status. When a data retrieval command is received, the processor calculates the relative entropy value between the current actual distribution of multi-dimensional data and the historical baseline distribution, and maps it to interface rendering parameters to dynamically reconstruct the visual focus of the view. This invention can reduce the false alarm rate of monitoring data caused by physical slippage and improve the efficiency of view resolution and acquisition of multimodal data.

The invention relates to the technical field of flexible grippers, and discloses a memory alloy and magnet hybrid driven flexible gripper and a use method. Comprising an end cover for fixing a manipulator, four hybrid-driven manipulator components matched with the end cover, a shape memory alloy strip, a side link, an open flexible finger, a closed flexible finger, a bottom plate of the flexible fingers, a top plate for fixing a magnetic ball, a clamping groove for fixing the magnetic ball and a heat insulation plate. According to the memory alloy and magnet hybrid-driven flexible gripper and the using method, the magnetic field intensity is controlled through the current, the higher the magnetic field intensity is, the higher the response speed of stretching of the flexible fingers is, otherwise, the response speed is slow, meanwhile, the enveloping range of the flexible fingers can be adjusted according to the size of an object, the flexible fingers are tightly attached to the object, and the flexibility of the gripper is improved. The whole mechanism is simple, low in energy consumption and wide in application range.

The preparation method comprises the following steps: S1, mixing and reacting a metal compound, an organic ligand and a solvent according to a specific ratio to form a ZIF-7 material, and dissolving the ZIF-7 material in DMF (Dimethyl Formamide) to form a ZIF-7 solution; s2, polyacrylonitrile and polyvinylpyrrolidone are dissolved in a DMF solution to obtain a PAN membrane casting solution, then the PAN membrane casting solution is poured on a clean and smooth glass plate, the glass plate is soaked in deionized water to obtain a PAN membrane, the PAN membrane is sequentially soaked in NaOH and HCl solutions to prepare an HPAN membrane, and the HPAN membrane is soaked in a ZIF-7 solution; s3, the HPAN membrane serves as a supporting layer to divide the metal compound solution and the organic ligand solution, in the reaction process, the metal compound solution and the organic ligand solution are diffused in the opposite directions and react on the surface of the supporting layer of the HPAN membrane, and finally the needed framework membrane is formed. The obtained frame membrane has an efficient ammonia separation effect, and when the frame membrane is used for separating synthesis ammonia residual gas, the ammonia permeability reaches up to 2561.7 GPU, and the ammonia / nitrogen selectivity and the ammonia / hydrogen selectivity respectively reach up to 630.1 and 147.8.