28results about How to "Accurate setting" patented technology

This invention relates to the field of automated assembly technology and discloses an automated assembly equipment and method for hydraulic cylinders, including an assembly table. The top surface of the assembly table is provided with a piston turning assembly for moving a piston to a workstation. Above the assembly table is a piston adjusting mechanism for workstation transfer of the piston. Above the assembly table is a piston outer sealing ring fitting assembly for fitting an outer sealing ring onto the piston surface. This invention not only achieves continuous piston transport, workstation transfer, and sealing ring assembly through a fully automated design, including an electric conveyor belt, turntable, and cylinder drive assembly, but also significantly reduces manual intervention, improves overall assembly speed and production efficiency. The drive device and transmission components ensure accurate piston positioning at each workstation and precise fitting and insertion of the sealing ring, effectively reducing assembly errors.

The object detection device for detecting a target (TA) includes: a light source (10); an emission unit (14) that emits illumination light and has an optical phased array (20) that changes the emission direction of the illumination light; an orientation control unit (36) that controls the emission direction of the illumination light to scan a scanning area; a detection unit (40) that determines whether a target exists and measures the orientation of the target; a high reflectivity determination unit (50) that determines whether the target is a high reflectivity; a high reflectivity measurement unit (52) that estimates the size of the high reflectivity; and a threshold setting unit (54) that sets a detection determination threshold. The threshold setting unit sets the detection determination threshold for orientations other than the specified orientation based on the light received from the high reflectivity when the emission direction is set to an orientation other than the specified orientation, the size of the high reflectivity, the distribution of the emission intensity of the emission unit when emitting the illumination light, and the distribution of the light sensitivity of the reflected light of the detection unit.

The invention relates to the field of aluminum alloy die casting, in particular to a die casting device for aluminum alloy shell machining, which comprises a base, and a tail plate is mounted on one side above the base. The movable mold plate reciprocates in the mold closing process to drive the push rod to drive the piston to move in the sealing tank, so that alternate change of positive pressure and negative pressure is formed in the sealing tank; in the process, the PCL control cabinet cooperatively controls opening and closing of the feeding hole and the discharging hole, automatic extraction and conveying of the liquid raw materials are achieved, and finally the liquid raw materials are injected into the charging barrel. And then, the injection cylinder drives the injection rod to inject the raw materials into the mold closing cavity at high pressure to complete die-casting forming, and the full-automatic process from feeding to forming is achieved. In addition, the screw is driven to move axially by rotating the internal thread cylinder, the initial position and stroke of the piston can be adjusted, and therefore the single suction amount of the sealing tank is changed, the sealing tank can flexibly meet the differentiated requirements of different die-casting parts for the raw material amount, and accurate and controllable feeding is achieved.

This invention discloses a core holder and experimental method for thermal stress fracturing experiments, comprising: an insulated pipe kit having a through cavity; a heating device at one end of the insulated pipe kit, and an insulation layer in the area outside the heating device; a first temperature sensor on the upper side of the area opposite the insulation layer, and a transparent glass-encased steel container on the lower side of the area opposite the insulation layer; a second temperature sensor on the heating device; a clamping device for clamping the insulated pipe kit; a piston kit disposed on the clamping device for introducing gas or liquid into the cavity of the insulated pipe kit; and a device for clamping the experimental core placed in the cavity of the insulated pipe kit. This experimental apparatus, in addition to thermal stress fracturing displacement experiments, can also meet the equipment requirements of conventional body experiments, exhibiting strong functionality.

The utility model relates to the technical field of electric core simulation, concretely is a kind of multi-string electric core simulation board, it is characterized in that, including power supply, terminal, first row pin, adjustable resistance, LED pilot lamp module, dial switch and second row pin, the terminal is connected with power supply, and the terminal two wiring ports are all with the anode of adjustable resistance;Adjustable resistance one end is connected in parallel with first row pin, and the other end is connected in parallel with LED pilot lamp module;Dial switch one end is connected with adjustable resistance, and the other end is connected with second row pin;Simulation board is equipped with multiple terminals, first row pin, adjustable resistance, LED pilot lamp module and dial switch respectively, and second row pin includes the parallel connection of H21 and H22.The utility model solves the uncontrollability problem of real electric core, accurately adjusts output voltage, internal resistance and other parameters by electronic circuit, can simulate any fault state in real time, flexibly, without relying on the physical change of real electric core, greatly improves test efficiency;Promote test security;Ensure test consistency and repeatability.

The utility model discloses a modular hydraulically-driven strip tillage machine which comprises a machine frame connected with a tractor in a hanging mode and a plurality of tillage units arranged on the machine frame, and each tillage unit comprises an adjusting frame, a first hydraulic motor arranged on the adjusting frame and a rotary tillage knife roll directly driven by the first hydraulic motor. Each cultivation unit is in sliding connection with the rack through a sliding adjusting mechanism; the strip tilling machine is further provided with a hydraulic driving system, and the hydraulic driving system comprises a multi-way hydraulic valve set for supplying oil to all the first hydraulic motors and a row spacing adjusting oil cylinder for driving all the tilling units to synchronously move in the opposite direction or the reverse direction along the rack so as to adjust the row spacing. A first transverse rod and a second transverse rod are fixedly connected to the rack in a penetrating mode. The row spacing adjusting mechanism has the advantages of dynamic and accurate row spacing adjustment, reliable locking, simplified structure and efficient operation.

The utility model discloses a kind of stylus test mechanism, including front and rear movement module, angle swing module and fixed base, the front and rear movement module and angle swing module connection, the front and rear movement module includes front and rear movement drive mechanism, gear and rack, the front and rear movement drive mechanism is connected with gear, drive gear rotation, the gear is engaged with rack, the rack is fixedly connected with angle swing module, the angle swing module is fixedly connected with fixed base, the fixed base is equipped with the fixture for clamping stylus. The utility model is through the structure design of pertinence, effectively solved the core pain point that traditional stylus test device can only be tested vertically, angle single, test scene is limited, in test flexibility, precision reliability and test efficiency three big dimensions realization significant promotion.

The utility model provides a kind of lens edge automatic chamfer polishing device, it is related to chamfering equipment technical field, comprising: polishing table;The middle part upper end of polishing table is rotated and installed carousel by pivot;The polishing table on the left and right sides of carousel is respectively fixedly installed clamping frame, clamping mechanism is equipped on clamping frame, clamping mechanism is used to clamp the lens placed on carousel;Two The clamping frame between another side of polishing table is fixedly equipped with support frame at the position close to edge;Chamfer frame is installed on support frame, chamfer mechanism is equipped on chamfer frame, and chamfer mechanism is used to chamfer the lens ring edge. First, clamping mechanism uses clamping cylinder to drive clamping seat horizontal movement, drives clamping roller and driving roller to be jointly used to lens edge and be clamped.

This invention discloses a pressure regulating and stabilizing device for a casing gas venting valve in oil wells, belonging to the field of oilfield well maintenance technology. It includes a connecting pipe connected to a nitrogen source, a venting valve, and a pressure gauge. The venting valve is equipped with an adjustment knob. This invention involves adding nitrogen to the connecting pipe to reach the required pressure for the venting valve. Once the required pressure is reached, the venting valve is adjusted using the adjustment knob until it begins to release gas and pressure normally. This pressure regulating method ensures accurate setting of the venting valve. This invention also discloses a pressure regulating and stabilizing method for a casing gas venting valve in oil wells. Using the aforementioned pressure regulating and stabilizing device, first, the venting valve and pressure gauge are connected to the connecting pipe. Then, nitrogen is injected into the connecting pipe. After observing the pressure gauge reading and reaching the required stabilizing pressure value, nitrogen injection is stopped. The venting valve is then adjusted using the adjustment knob until it begins to release gas and pressure normally.

The present application belongs to the field of quick replacement blade valve, discloses a kind of quick replacement blade valve and its replacement method.Quick replacement blade valve includes valve body, shaft sleeve, rotating mechanism, blade group mechanism. The blade group mechanism includes: blade, blade connecting shaft, blade handle, locking mechanism;The locking mechanism includes: locking shaft, rotating handle, butterfly bolt;The rotating mechanism includes: rocker arm, connecting rod, rotating shaft;Rocker arm is connected with rotating shaft, and rocker arm is connected with connecting rod and fixed. Replacement method is accurate, precise by being set between rotating mechanism and locking mechanism, and locking mechanism can quickly disassemble blade by adjusting angle, and also can quickly install blade;The service life of the quick replacement blade valve provided by the present application is long, the blade and valve shaft are not easy to deform, the actuator operates normally for a long time, and the blade can be quickly replaced. This blade is easy to disassemble, easy to clean and can be used continuously.

This invention provides a congestion control optimization method and apparatus that combines planning plane and data plane information, relating to the field of satellite ground data transmission technology. The method includes: determining the satellite single-channel downlink code rate for the task to be transmitted in real-time based on satellite orbit, imaging area, receiving resources, ground station location information, and elevation information; determining a candidate window value for the data plane based on transmission system bandwidth, the number of currently executed transmission tasks, the real-time transmission rate of each currently executed transmission task, transmission system round-trip time, and an initial window coefficient; and determining the initial window value as the minimum value between the candidate window value for the data plane and the satellite single-channel downlink code rate for the task to be transmitted in real-time when the current transmission task to be initiated is a real-time transmission task. This invention combines planning plane and data plane information to more accurately set the initial window value for real-time transmission tasks, avoiding long detection processes due to a lack of prior knowledge and significantly shortening the detection cycle.

The utility model provides a kind of MPCVD seed crystal placing device, it is related to the technical field of artificial diamond production auxiliary device, to solve the placing of seed crystal usually relies on the experience and skill of operator, placing device is often lack of high automation, need more artificial intervention Problem;Including drive support, bearing frame, bearing side block, placing support frame and placing load frame;The drive support one end is provided with driving motor;The bearing side block is set to bearing frame side surface;The placing support frame is set to bearing frame bottom, and locating load groove is opened in placing support frame side surface, and guiding support frame is set to the both sides of placing support frame, and installing support block is fixedly arranged on the top of placing support frame;The placing load frame is inserted and mounted on the top of placing support frame;Driving gear shaft respectively first branch plate and second branch plate are pushed and pulled to adjust, and the positioning guide of two groups of second branch plate and placing support frame is slidably adjusted, so that seed crystal is independently supported and is placed on the top of seed crystal placing disc by placing support frame row falling.

The invention relates to the field of image processing, and provides an image control point processing method and electronic equipment, and the method comprises the steps: obtaining at least one to-be-detected control point in a to-be-detected image, setting a plurality of epipolar lines corresponding to the to-be-detected control point according to the relative relation between a plurality of reference images and the to-be-detected image, the to-be-inspected control points are automatically inspected as the stable control points or the unstable control points by means of the multiple epipolar lines, manual intervention is not needed, experience dependence and subjective deviation of workers are remarkably reduced, and the efficiency, accuracy and reliability of processing the image control points can be considered easily.

The invention discloses a method and a system for automatically setting inspection point positions of a transformer substation. The method comprises the following steps: constructing a current field distribution diagram, a thermal radiation field distribution diagram and a vibration energy field distribution diagram; performing cascade modulation on the three field graphs based on a physical causal chain to generate a composite gravitational field distribution graph; taking the inspection starting point as a starting point, tracking the field intensity peak point by point by adopting a gradient rising method, and generating a first inspection path; identifying a field intensity mutation coefficient of an equipment node on the first inspection path, and marking a to-be-detected node; using the to-be-detected node as a center, using an equipotential line gradient tracking rule to identify a field intensity local extreme point, and generating a second patrol path; fusing the first patrol path and the second patrol path to generate a final patrol path; and according to the path point coordinates of the final patrol path, determining a final layout area of the patrol point positions. The system can respond to the real-time operation state of the equipment, achieves the dynamic and precise setting of the inspection point, and remarkably improves the intelligent level and operation and maintenance efficiency of the inspection of the transformer substation.

The invention discloses a VR glasses middle shell positioning detection device and a detection method thereof, and the device comprises a pedestal, two limiting plates are slidably arranged on the two opposite sides of the bottom of an accommodation groove of the pedestal, a first driving mechanism is installed on the pedestal, positioning plates are slidably arranged at the two opposite ends of the accommodation groove, and a second driving mechanism is installed on the pedestal. A clamping space is defined by the two positioning plates and the two limiting plates; a supporting plate is erected on the base, a plurality of spoke rods capable of moving in the radial direction of the reference base are arranged on the reference base in a sliding mode, pressure sensors are installed at the ends, away from the axis of the reference base, of the spoke rods, linkage extrusion pieces are installed on the reference base in a lifting mode, and the outer diameter of the linkage extrusion pieces is gradually increased from bottom to top. And the linkage extrusion piece is hung on the supporting plate through a height-adjustable driving piece. According to the invention, the problem of unstable detection data due to the adoption of a common positioning device in the deformation monitoring of the shell frame in the VR glasses production process is solved.

The present application relates to large automobile aluminum casting parts die casting processing technical field, especially relates to a kind of large automobile die casting die forging manufacturing process, comprising the following steps: step a, alloy smelting and refining, step b, mold preheating and spraying, step c, clamping and vacuumizing, step d, quantitative pouring, step e, injection, step f, pressurization and pressure maintaining, step g, opening, taking and cooling, step h, trimming and cleaning, by setting the drainage groove cleaning step on the basis of existing die casting manufacturing process, immediately after completing the quantitative pouring of aluminium liquid each time, the bottom of drainage groove is cleaned once, so that the quantitative pouring each time can realize the quantitative drainage output of aluminium liquid, ensure the quality of the large automobile die casting die forging of molding, improve the continuity and stability of production.

The present application relates to the field of tunnel natural lighting, in particular to a light gradual change anti-dazzle tunnel portal, comprising an extended arch set at the tunnel portal; a plurality of light transmission holes are formed on the extended arch, the size, shape and number of the light transmission holes are set according to the tunnel cross-sectional area size and the tunnel wall area proportion, the area and number of the light transmission holes are arranged gradually from less to more in the tunnel exit direction and gradually from more to less in the tunnel entrance direction. The present application sets a simple structure to solve the white hole and black hole phenomenon caused by the light difference between the inside and outside of the transition tunnel, reduces the accident risk caused by the temporary blinding effect of the vehicle driver when entering or leaving the tunnel, achieves the purpose of preventing the tunnel portal from dazzling, and does not increase the energy consumption of the tunnel lighting, and the extended arch can also prevent the rock falling from the mountain at the tunnel portal from causing personnel injury and property loss of vehicles and road surfaces.

The utility model relates to the field of hydraulic drive assembly, in particular to a kind of based on two-way hydraulic drive assembly equipment, including equipment ontology, the equipment ontology includes base, hydraulic drive module, movable assembly module, pulley positioning frame, fixed assembly module;The top of the base is equipped with assembly platform, the top of the assembly platform is equipped with assembly station;The one end of the hydraulic drive module is towards assembly station;The movable assembly module is connected in hydraulic drive module;The pulley positioning frame is located in one side of movable assembly module;The fixed assembly module is fixedly connected in the side of assembly station away from pulley positioning frame;The hydraulic drive module, movable assembly module, pulley positioning frame, fixed assembly module form coaxial assembly path on assembly station.The utility model provides a kind of based on two-way hydraulic drive assembly equipment, replace artificial, improve assembly coaxial degree and stability, and reliability is strong.

The utility model provides a kind of curb stone flat stone construction lofting device, belong to road engineering construction and quality detection technical field.Solution the problem that elevation, gradient and flatness are difficult to accurately control and low in efficiency when flat stone masonry in road construction.It includes positioning plate, adjustable fixer, elevation regulator, fixed elevation positioning plate and adjustable elevation positioning plate, and the sliding connection between positioning plate and adjustable fixer;The elevation regulator is slidably connected with the positioning plate;The elevation regulator bottom is provided with a limit bottom plate, angle regulator and limit side plate adjustable elevation positioning plate are arranged on the limit bottom plate at intervals, adjustable elevation positioning plate is nested in fixed elevation positioning plate, one side of fixed elevation positioning plate is connected with limit side plate, and the other side is in contact with angle regulator;Baseline fixing device is equipped in the bottom of fixed elevation positioning plate and adjustable elevation positioning plate.It is mainly used for quickly and accurately positioning curb stone masonry position in road construction.

This invention discloses a fully digitally controlled programmable Ti:sapphire femtosecond oscillator carrier envelope offset frequency locking device, comprising an avalanche photodetector, a power divider, a first RF conditioning circuit, a second RF conditioning circuit, a frequency and phase discrimination circuit, a programmable proportional circuit, a programmable integral circuit, a programmable bias circuit, an inverting summation circuit, a programmable limiting circuit, an anti-saturation integral circuit, an output buffer circuit, a main control circuit, and a host computer. This invention enables the carrier envelope offset frequency to be locked to the repetition frequency. Employing a fully digitally controlled programmable PI circuit, combined with innovative anti-saturation integral and output limiting functions, it offers advantages such as low latency, high precision, high stability, and high security.

The utility model discloses an automatic hub cap blank forming and cutting device which comprises a stamping device, a cooling device and a cutting and cap conveying device, and the cutting and cap conveying device comprises a cutting device and a cap conveying device. The blank collecting device comprises a packaging support and a packaging conveying device. The intelligent clamping robot is used for clamping the primary machining blank from the stamping device to the cooling device and clamping the primary machining blank from the cooling device to the cutting and cover conveying device; according to the utility model, close connection and seamless joint among links are realized, manual intervention and waiting time are reduced, continuity and stability of a production process are improved, and powerful support is provided for rapid development of the electric vehicle industry.

The application discloses an electronic differential pressure flow switch, which comprises the following steps: an electronic flow differential pressure switch is in communication connection with a main control system, the main control system is in communication connection with an LED panel, and exhaust pipe temperature and exhaust pipe differential pressure values detected are displayed on the LED panel; and the main control system is also in communication connection with an ignition switch and an alarm, differential pressure data of the exhaust pipe are acquired through a thermal flow differential pressure sensor, the differential pressure data are analyzed through overall comprehensive analysis and then through time and space dimensions, respectively, to determine whether a fan or the exhaust pipe is faulty; and the differential pressure data are used to calculate a maintenance coefficient of the fan and the exhaust pipe, and according to the maintenance coefficient, a staff member can quickly handle and maintain.

The utility model provides a kind of cutting-off equipment for fireproof cable, including cutting seat, the rear side of cutting seat is provided with cutting assembly for cutting fireproof cable, the front side of cutting seat is provided with conveying assembly for limiting fireproof cable, the upper surface of cutting seat is provided with arc slot, the rear side of cutting assembly is provided with material blocking assembly, the material blocking assembly includes baffle and threaded rod, both sides of baffle end are fixedly installed with slide bar, the side of cutting seat is provided with sliding slot, two The slide bar is movably penetrated in sliding slot, sliding block is slidably installed in slide bar. The utility model is rotated by rotating torsion block and drives threaded rod to rotate, sliding block is moved in sliding slot, and then the distance between baffle and cutting assembly is adjusted, the accurate setting of the cutting length of fireproof cable is realized, in each cutting, cable end and baffle contact trigger cutting, ensure that the length of cable is consistent each time.

The utility model relates to material science and engineering technical field, and disclose a kind of dispersion device for silicon micro powder surface modification, including stirring bucket and support frame, stirring bucket is fixedly installed on support frame, the top of stirring bucket is connected with bucket cover, the upper of stirring bucket is fixedly installed with four spiral buckles in circle, the four corners of bucket cover and stirring bucket are all provided with clamping groove, spiral buckle is connected with bucket cover and stirring bucket by clamping groove, the top of bucket cover is fixedly installed with motor, the output of motor is fixedly installed with transmission rod, the central position of bucket cover is provided with bucket groove for placing transmission rod, the bottom of transmission rod is fixedly installed with blade, the front of stirring bucket is fixedly installed with control system, and control system includes touch screen, PLC controller and temperature sensor etc., the dispersion device for silicon micro powder surface modification, equipment operating parameter can be controlled by control system operator, accurately set and adjust parameter, realize automated production, guarantee the stability and consistency of production.

The application discloses a kind of based on data-driven conventional steel grade laminar cooling self-adapting coefficient pre-matching method, comprising the following steps, data acquisition and pre-processing: according to standard acquisition layer before cooling control, process data of setting data during layer cooling production, establish database.Feature screening and target data set establishment: key features are screened by pearson correlation analysis and contribution analysis, and target data set is generated.Model training and optimization: the target data set is divided into training sample, verification sample and test sample, the model is trained and verified using training sample and verification sample, and the model parameters are optimized by grid search.Model testing and evaluation: the model is tested and evaluated using test sample.Model application: the optimized model is applied to actual production, and the setting adaptive parameter is updated.The application accurately predicts the laminar cooling self-adapting coefficient, optimizes the production parameters, and assists in the stable control of the laminar cooling coiling temperature in the production process.

The present application relates to a kind of SCR denitration system case matching ammonia injection optimization control method and system, belong to flue gas denitration method and device technical field.The technical scheme of the present application is: case matching and total ammonia injection amount control stage: acquisition system total working condition data and processing, calculate with the similarity of historical case, and according to the similarity threshold value judgment, output recommended total ammonia injection amount set value;Subzone ammonia injection distribution and optimization control stage: based on total ammonia injection amount set value, acquisition flue subzone flow rate data, calculate each subzone NOx flux to carry out ammonia injection amount dynamic pre-distribution, again according to whether the judgment of enabling optimization adjustment, select directly using pre-distribution scheme or in combination with SCR outlet NOx distribution to pre-distribution scheme is fine-tuned, generates and executes each subzone ammonia injection control instruction.The beneficial effects of the present application are: the intelligent decision of case matching and the accurate control of subzone ammonia injection are combined, the operating efficiency and stability of SCR denitration system can be significantly improved.

The invention relates to the technical field of pre-oxidized fibers, and particularly discloses a cotton spinning pre-oxidized fiber and a preparation method thereof. The preparation method comprises the following steps: mixing a polyacrylonitrile precursor with a first modified oil agent to obtain a pretreated precursor; the first modified oil agent comprises polytetrafluoroethylene dispersion liquid, nano aluminum oxide and a silane coupling agent; carrying out gradient pre-oxidation on the pre-treated precursor in an air atmosphere under the conditions that the temperature is 215-255 DEG C and the tension is 1650-2100 cN, so as to obtain a pre-oxidized fiber; immersing the pre-oxidized fiber into a second modified oiling agent for oiling and curling to obtain a cotton spinning pre-oxidized fiber; the second modified oiling agent comprises an antistatic agent, a bundling agent and a moisture absorption friction increasing agent. According to the invention, the structural stability and antistatic property of the fiber are improved by controlling the condition parameters of pre-oxidation and optimizing the components and proportion of the first modified oil agent and the second modified oil agent, so that the spinnability of the cotton spinning pre-oxidized fiber is improved, and high-quality and large-scale cotton spinning processing of the pre-oxidized fiber is realized.