258results about How to "High adjustment accuracy" patented technology

The invention discloses a mechanism for mounting and adjusting spray heads of an inkjet printer. The mechanism comprises a base plate and an adjusting mechanism, wherein the base plate is provided with at least two spray head mounting positions; each spray head mounting position is provided with a fixed spray head or a movable spray head; the fixed spray head is fixedly arranged on the spray head mounting position; the movable spray head is connected with the adjusting mechanism; and the adjusting mechanism adjusts the transverse and longitudinal relative positions between the spray heads and adjusts the angle between the spray heads by controlling the movement of the movable spray head. The mechanism for mounting and adjusting the spray heads of the inkjet printer has a simple structure and high adjustment accuracy, can adjust the spray heads in a plurality of directions, and is convenient to mount and maintain.

The invention discloses a fuzzy proportion integration differentiation (PID) control method and a fuzzy PID control method device for an industrial environment high-precision air conditioner. The method comprises the following steps of: selecting an input quantity of a fuzzy PID controller as a deviation e between an expected value and an actual output and a deviation change rate ec, and establishing a bivariate continuous function relation between parameters Kp, Ki and Kd and the absolute value of the deviation and the absolute value of the deviation change, wherein output quantities are the correction quantities delta Kp, delta Ki and delta Kd of the PID parameters; and determining a fuzzy relation between the three PID parameters and the deviation e and the deviation change rate ec, continuously detecting e and ec in operation, adjusting the three parameters on line according to a fuzzy control theory to obtain adjusted Kp, Ki and Kd, and inputting Kp, Ki and Kd into the PID controller. The control device comprises a fuzzy control circuit on a circuit board, wherein a self-setting mechanism circuit for setting the parameters on line is also arranged on the fuzzy control circuit. The precision of the temperature, humidity and pressure difference control of the industrial environment high-precision air conditioner is improved by introducing the fuzzy control into the conventional PID controller and comprehensively using the characteristics of the conventional PID controller and the fuzzy controller.

The invention discloses an asynchronous motor frequency converter device with low-voltage ride through capability. An alternating-direct-alternating mode is adopted for a frequency converter, namely, firstly converting a working frequency alternating power supply into a direct current power supply by a rectifier; and then converting the direct current power supply into an alternating power supplywith controllable voltage and frequency through an inversion link and providing the alternating power supply to an asynchronous motor. A diode rectification module in the inner part is switched in after the working frequency alternating power supply is switched in the frequency converter; the alternating current is converted into direct current; the output of a rectifier bridge is switched into aBOOST module; the output of the BOOST module is switched into the input of a DC/AC (direct current/alternating current) inverter module; and the output of the inverter module, serving as an alternating current supply, is directly supplied to the asynchronous motor. Under the normal condition, the BOOST module is not started, when the drop of the power grid voltage is detected, the BOOST module starts automatically, sufficient direct current voltage sources for the inversion link are ensured, and the stable operation of the asynchronous motor is ensured.

The invention discloses a magnetic fluid double suspension driving and driven radial bearing. The magnetic fluid double suspension driving and driven radial bearing comprises an electromagnetic suspension supporting system and a liquid static pressure supporting system. The two supporting systems are axially arranged in parallel along a rotary shaft, wherein the electromagnetic suspension supporting system comprises a stator and a concentrating flux sleeve, an enamelled wire winds the stator, the stator is formed by laminating a plurality of layers of silicon steel sheets, eight magnetic poles which are arranged by way of NSSNNSSN are uniformly distributed on the stator, every two adjacent magnetic poles form a magnetic pole pair, and each of the magnetic pole pairs and the concentrating flux sleeve form a flux loop; four static pressure supporting cavities are uniformly formed in the liquid static pressure supporting system in the circumference, and C-shaped return chutes are processed among the static pressure supporting cavities to be able to lead returned oil to one side of the electromagnetic suspension supporting system so as to further cool the magnetic poles and the enamelled wire. The bearing disclosed by the invention can integrates the advantages of the electromagnetic suspension supporting system and the liquid static pressure supporting system and can increase the bearing capacity and the rigidity of the bearing to a great extent without independently arranging an auxiliary supporting and circular cooling system, so that the adjusting capacity and precision of the bearing system are improved.

The invention provides intelligent verticality adjusting method and device of an ultra-deep topdown construction method stand column pile, which intelligently adjust the verticality of the ultra-deep topdown construction method stand column pile so that topdown construction method construction in ultra-deep underground space is more accurate and convenient in the intelligent verticality adjustment of the stand column pile. The verticality adjusting device of the ultra-deep topdown construction method stand column pile comprises a detachable inclination measuring device, a top fixing device, a connecting rod adjusting expander, a sensor and a high-precision verticality detection computer device, wherein the detachable inclination measuring device is in butt joint with the axle center of the stand column; the top fixing device is fixed with the detachable inclination measuring devices; the connecting rod adjusting expander acts on the outer wall of the stand column to adjust the verticality of the stand column; the sensor is arranged on the detachable inclination measuring device to sense the verticality of the detachable inclination measuring device and send verticality sensing information; and the high-precision verticality detection computer device is used for receiving the verticality sensing information sent by the sensor and starting the connecting rod adjusting expander to adjust the verticality of the stand column according to the verticality sensing information.

The invention discloses an integration band adjusting method for image integration processing, an adjusting device and an integration band adjusting system for image integration processing. The method for adjusting at least one integration band comprises steps that: at least two color sample points of the integration band are extracted; attenuation of the various color sample points of the integration band is carried out to acquire integration band attenuation parameters of the various color sample points.

The invention relates to a variable-frequency air conditioning system with large refrigeration capacity, an air conditioner and a control method for a throttling device of the variable-frequency air conditioning system. The variable-frequency air conditioning system comprises a controller, the throttling device, a four-way valve, a condenser, an evaporator, a compressor, a gas-liquid separator, a pressure sensor and an exhausting temperature wrap. The throttling device comprises an electronic expansion valve and a capillary throttle valve. The electronic expansion valve communicates with the condenser and the evaporator. The capillary throttle valve communicates with the condenser and the evaporator. The air conditioner comprises the variable-frequency air conditioning system with large refrigeration capacity. The control method comprises the following steps that the exhausting pressure value and the exhausting temperature value of the variable-frequency air conditioning system are obtained; when the exhausting pressure value is smaller than the preset pressure threshold, the temperature difference between the exhausting temperature value and the preset pressure threshold is calculated; the condition that the temperature difference is within the target exhausting temperature range or not is judged; if yes, a control signal is generated; and the control signal is sent to the throttling device. Different target exhausting temperature values can be set according to different environment temperatures, so that the reliability of the variable-frequency air conditioning system is improved.

The invention discloses a lifting platform for replacement of power batteries. The lifting platform comprises a push handle, a base, a foldable lifting support, a hydraulic cylinder located in the lifting support, a lifting flat panel, a nut and screw adjusting mechanism for bearing the power batteries, universal wheels, a guide rail roller and guide rails, wherein the push handle is installed atthe top end of the base; the lifting support is arranged at the top end of the base and the bottom of the lifting support is connected with the base so that the lifting support can be driven to be opened or folded; the two ends of the hydraulic cylinder are connected with the upper end and the lower end of the lifting support separately; the lifting flat panel is arranged at the top end of the lifting support and connected with the lifting support; the nut and screw adjusting mechanism is installed at the top end of the lifting flat panel; the guide rails are located on the lower portion of the base; the universal wheels are installed at the bottom of the base; and the guide rail roller is installed in the middle of the bottom of the base and is in rolling connection with the guide rails.The lifting platform is simple and compact in structure, wide in lifting range, high in bearing capacity, convenient to move, high in adjustment precision and good in adjustment effect, and the mounting time of the power batteries is shortened.

The invention discloses automatic adjustment pick-up equipment based on face recognition and an automatic adjustment method. The automatic adjustment pick-up equipment based on face recognition comprises an image capture device and a pick-up array formed by a plurality of pick-up units, wherein the image capture device is arranged at the front or back or upper part or lower part of a pick-up and is used for collecting an image of a user of the pick-up; and the automatic adjustment pick-up equipment further comprises a control circuit which is electrically connected to the pick-up array and the image capture device. The control circuit is electrically connected to the pick-up units. More than three pick-up units are provided. The face orientation of the user of the pick-up is recognized, and relevant adjustment is carried out on the pick-up according to the orientation, so that the inconvenience caused by control and adjustment of pick-up parameters through voice recognition only is avoided. The adjusting accuracy is higher and the operation is more intelligent.

An ultra-precision machine special for machining nuclear power bearing rings comprises a machine tool base, a lathe bed, a hydraulic system, an electronic control system, a servo system, electric main shafts, rotary head lifting mechanisms, a workpiece shaft, rotary head movable rods, sliding blocks, a workpiece translational mechanism, a supporting component, a magnetic pole, a rotary eccentric wheel, the nuclear power bearing rings, rotary head slide ways and oil stone clamps. The number of the electric main shafts and the number of the rotary head lifting mechanisms are both two sets, and the electric main shafts and the rotary head lifting mechanisms are all arranged above the workpiece translational mechanism. Each set of electric main shaft independently works and moves up and down through a corresponding rotary head lifting mechanism. The rotary eccentric wheel is arranged on the lower end portions of the electric main shafts, and the electric main shafts drive the rotary eccentric wheel to rotate. The ultra-precision machine is used for more conveniently and quickly machining the nuclear power bearing rings, on the premise of guaranteeing machining precision, time for replacing mechanical parts and debugging the machining size in the prior art can be saved, machining can be continued as long as the magnetic pole is replaced, and machining efficiency is effectively improved.

The invention discloses a compound braking system with a brake-by-wire function and belongs to the technical field of car braking. The compound braking system with the brake-by-wire function includesa brake pedal, a brake booster, a brake master cylinder, two-position five-way sliding valves, travel simulators, a hydraulic adjusting module (a motor, an oil pump, a high-pressure energy accumulator, two-position two-way electromagnetic valves and hydraulic adjusting cylinders), a pedal displacement sensor, pressure sensors and a brake controller. The compound braking system with the brake-by-wire function is characterized in that two independent hydraulic control mechanisms are integrated, the two-position five-way sliding valves are shifted, in normal situations, the electronic hydraulic braking system (EHB) generates hydraulic pressure through the motor, the pump, the electromagnetic valve and the hydraulic adjusting cylinders, and a traditional mechanical braking system is used underthe situation of system failure; the displacement sensor is mounted on the brake pedal and is used for determining the total braking force; the pressure sensors are mounted on front and back wheel pipelines to ensure real-time control on the hydraulic adjusting module. When normal braking is carried out, the pedal force is fed back by the travel simulators, and a mechanical structure of the braking system is decoupled.

The invention discloses a calibration system for optical beam orientation. The calibration system comprises a first optical lens, a second optical lens, a third optical lens, a fourth optical lens, an optical wedge and two optical receiving devices; an optical beam is reflected by the first optical lens and the second optical lens in sequence and passes above or below the fourth optical lens, after the optical beam is reflected by the third optical lens and the fourth optical lens, the optical beam passes above or below the third optical lens and then shines to the optical wedge, and two reflecting surfaces of the optical wedge incline to the direction of incident light beams; the optical receiving devices are used for receiving the optical beam reflected by the two reflecting surfaces of the optical wedge, and the second optical lens and the fourth optical lens are adjustable optical lenses. The invention further discloses a calibration method of the calibration system. The calibration system and the calibration method have automatic real-time calibration functions for the optical beam orientation, and the functions can serve as front-end systems for all kinds of laser precise application systems. The calibration system can record the state of a normal work optical path, and the quick and precise optical path recovery can be achieved.

The invention discloses an air conditioner, a control method of the air conditioner and a human body sensor and relates to the technical field of air conditioners. The air conditioner, the control method of the air conditioner and the human body sensor solve the problem that since the adjusting precision of the temperature and air volume of the air conditioner is not high enough, the user experience is poor. The control method of the air conditioner comprises the steps that according to people changing information in an indoor monitoring area, the temperature adjustment value and/or the air volume adjustment value of an indoor unit of the air conditioner are/is determined, wherein the people changing information comprises the change of the number of people and the activity level information of people; and based on the current set temperature and/or the current set air volume of the indoor unit, adjustment is conducted according to the temperature adjustment value and/or air volume adjustment value of the indoor unit. The control method of the air conditioner and the human body sensor are used for the air conditioner controlling process.

The invention relates to a tester for micromechanical properties of biological soft tissue. The tester comprises a support and a micro force test assembly; the support is provided with a sample test board, a pressure test head facing the sample test board and a driving mechanism driving the pressure test head to move towards the sample test board or move in the direction opposite to the sample test board; the micro force test assembly comprises a first guide pipe, a first piston which is movably connected with the first guide pipe and connected with the sample test board in a supporting mode, a second guide pipe, a second piston movably connected with the second guide pipe, a pressure amplification board connected with the second piston and a force sensor conducting stress testing on the pressure amplification board, wherein the first guide pipe and the second guide pipe are communicated through a hose, and the sectional area of the sample test board is smaller than that of the pressure amplification board. According to the tester, micro force is amplified according to a hydraulic pressure amplification principle, micro displacement is amplified according to a lever amplification principle, and then micro force and micro deformation of the biological soft tissue are tested.

The invention discloses a control method for an electronic expansion valve. The method for the electronic expansion valve of an air conditioner comprises the steps that when the electronic expansion valve of a current indoor unit needs to be adjusted, the opening degree interval where the electronic expansion valve required to be adjusted is located and the adjusting direction are obtained; the adjustment amount corresponding to the opening degree interval is determined; and the electronic expansion valve of the current indoor unit is adjusted according to the adjustment amount and the adjusting direction. The invention further discloses the air conditioner and a computer readable storage medium. According to the air conditioner, the control method for the electronic expansion valve and the computer readable storage medium, the adjustment amount of the electronic expansion valve of each opening degree interval is different, and therefore the opening degree can be adjusted stage by stage according to the flow curve of the electronic expansion valve, the adjusting precision is high, and the comfort is good.

The invention relates to an electrochemical machining system. The system comprises a base, an electrolytic bath and a machining electrode facing the electrolytic bath, wherein an X-direction movement platform driving the electrolytic bath to move in the X direction, a Y-direction movement platform driving the electrolytic bath to move in the Y direction and a Z-direction movement platform driving the machining electrode to move in the Z direction are arranged on the base; the Z-direction movement platform is connected with micro motion platforms driving the machining electrode to perform micro motion in three degrees of freedom, the micro motion platforms comprise an X-direction micro motion platform connected with the Z-direction movement platform, a Y-direction micro motion platform connected with the X-direction micro motion platform and a Z-direction micro motion platform connected with the Y-direction micro motion platform; a force sensor for detecting pressure applied to the electrolytic bath by the machining electrode is further connected to the electrolytic bath; a displacement sensor for detecting a machining depth of a workpiece is further connected to the machining electrode.

The invention discloses a reflecting mirror surface shape control device which comprises a mirror, a base, a heating/refrigerating unit and a temperature probe. The mirror is deformed when acting force is exerted on the mirror, and the surface shape of the deformed mirror has a shaping effect on the wavefront of light beam shone on a mirror surface. The base is connected with the mirror and used for receiving energy of the heating/refrigerating unit to generate deformation and acting the deformation on the mirror. The heating/refrigerating unit is installed at the bottom of the base and provides temperature conditions for the deformation of the base. The temperature probe is arranged in the base and used for detecting temperature change value generated in a process of delivering heat from the heating/refrigerating unit to the base so as to conduct control and adjustment. The reflecting mirror surface shape control device is simple in structure and high in adjusting precision and real-time efficiency, reduces energy consumption, meanwhile is low in structural cost and can achieve manufacturing of a small-size multi-adjusting-point efficient small deformable mirror.

The invention discloses an automatic adjustment device for the roll gap of a roll crusher, and a control method. A vibrating screen carries out screening separation on the materials crushed by the crusher according to particle sizes; a belt weigher A1 and a belt weigher A2 weigh the undersize materials and the oversize materials of the vibrating screen separately; a movable manipulator grabs the undersize materials of the vibrating screen and places the undersize materials in a particle size detector; the particle size detector detects the material particle sizes of the undersize materials ofthe vibrating screen; a computer control system acquires the weighing data of the belt weighers and the particle size data of the particle size detector and obtains the roll gap adjustment parameter of the crusher through a corresponding control algorithm; and an electrohydraulic control system of a valve-controlled hydraulic cylinder controls the movement of the hydraulic cylinder according to the roll gap adjustment parameter of the computer control system, thereby realizing automatic adjustment for the roll gap. Through the abovementioned automatic adjustment device and control method, automatic adjustment for the roll gap of the crusher can be realized, so that the particle sizes of the crushed materials are ensured, the product quality is improved, and the production efficiency is increased.

The invention provides a self-operated temperature regulator capable of regulating temperatures of fixed points. The self-operated temperature regulator comprises a temperature sensor assembly, a temperature regulating assembly, a power output assembly and a valve assembly. The temperature sensor assembly comprises a spiral temperature sensing rod, and temperature sensing agents are filled in the spiral temperature sensing rod. The temperature sensor assembly is connected with the temperature regulating assembly by a capillary tube filled with temperature sensing agents. The temperature regulating assembly comprises a temperature regulating cap, a regulating screw, a regulating piston, thrust bearings and a pointer, the total volume of the temperature sensing agents is computed, and the regulating screw is driven by the temperature regulating cap, so that the regulating piston can move up and down in an upper temperature controller body, the volume can be changed, and an effect of regulating the temperatures of the fixed points can be realized. The power output assembly comprises a thrust shaft and a return spring. The self-operated temperature regulator has the advantages that the temperature regulating agents can generate certain acting force to the upper surface of the thrust shaft under the effect of change of temperatures of controlled media, a valve can be opened and closed under the effect of the acting force, and accordingly the purpose of controlling the temperatures can be achieved.

The invention discloses a flow regulation device and a gas water heater with the same. The flow regulation device comprises a housing, a flow regulation component and a temperature sensing component, wherein the housing is provided with a water inlet and a water outlet; the flow regulation component is arranged in the housing; a temperature flow regulation hole, formed between the water inlet and the water outlet, is formed in the flow regulation component, and also comprises a regulation component used for regulating the opening of the temperature flow regulation hole; the temperature sensing component is arranged in the housing and is connected with the regulation component; and the temperature sensing component drives the regulation component according to the temperature of water in the housing. The flow regulation device, disclosed by the embodiment of the invention, has the advantages that the regulation time is short, the regulation precision is high, and the outlet flow rate and the temperature stability of the water heater can be improved.

The invention discloses an arc splicing structure. The arc splicing structure comprises a first connecting unit, a second connecting unit and a lock seat, wherein an adjustment device is arranged on the second connecting unit and comprises an adjustment rod, a sliding seat and a sliding piece, the sliding seat is fixedly sleeved on the adjustment rod, the sliding piece is slideably arranged on the sliding seat, one end of the lock seat is connected on the sliding piece, the other end is connected with the first connecting unit, the adjustment rod is used for driving one end of the lock seat to vertically move along the adjustment rod and furthermore the connecting angle between the first connecting unit and the second connecting unit is changed. The arc splicing structure is simple and compact, and compared with the synchronized adjustment of two display screen modules in the prior art, the angle of the first connecting unit relative to the second connecting unit which is adjusted by the adjustment device is high in adjustment precision, and has no clearance and is flat.

The invention discloses a thermostatic valve, a control method thereof and a water heater with the same. The thermostatic valve comprises a valve body, an inner cavity, a cold water channel, a hot water channel and a water outlet, wherein the inner cavity comprises a cold water cavity, a hot water cavity and a mixed water cavity; the cold water channel comprises a cold water inlet, a first cold water outlet and a second cold water outlet; the first cold water outlet is in communication with the cold water cavity; the hot water channel comprises a hot water inlet and a hot water outlet; the hotwater inlet is in communication with the second cold water outlet; the hot water outlet is in communication with the hot water cavity; one end of the mixed water cavity is in communication with the cold water cavity and the hot water cavity; the other end of the mixed water cavity is in communication with the water outlet; a valve core is arranged between the first cold water outlet and the second cold water outlet; a stepper motor is connected to the valve core; and the controller is used for receiving the signal feedback of a first temperature sensor, a second temperature sensor, a third temperature sensor and a water flow sensor, thereby sending a control instruction to the stepper motor. The thermostatic valve is short in adjustment time, improves the user experience, and can be applied to the water heater.

The invention provides a slab laser beam expanding alignment system capable of adjusting in an electric closed loop mode. The slab laser beam expanding alignment system capable of adjusting in the electric closed loop mode comprises a slab laser device, a first cylindrical lens, a second cylindrical lens a first spherical lens, a second spherical lends, a computer, a stepping motor and a distant field detection system, wherein the first cylindrical lens and the second cylindrical lens are arranged in orthogonal mode, the first cylindrical lens and the cylindrical lens are respectively connected with the stepping motor, the computer is connected with the stepping motor and the distant field detection system, a laser beam transmitted by the slab laser device sequentially passes through the first cylindrical lens, the second cylindrical lens, the first spherical lens and the second spherical lends, and then is shot into the distant field detection system, and the computer receives a feedback signal of the distant field detection system, controls running of the stepping motor according to the feedback signal, and thereby controls positions of the first cylindrical lens and the second cylindrical lends. The slab laser beam expanding alignment system capable of adjusting in the electric closed loop mode can guarantee that slab laser has good alignment effects under different work states, and is high in adjustment accuracy, good in alignment effect, and safe and simple to operate.

The invention provides a welding-synchronizing magnetic control device based on singlechip control and a control method. A synchronizing magnetic field, namely an external magnetic field, is synchronous with a welding process, namely the exciting current waveform is synchronous with the welding current voltage waveform; by testing the welding current voltage waveform, the phase of exciting current and the introducing time of a magnetic field are determined; and according to welding current, the amplitude of the exciting current is regulated and the introducing intensity of the magnetic field is determined so as to meet requirements for different external magnetic field forces in different stages such as arc morphological change, welding droplet transfer, and a flowing process of liquid metal in a welding pool. The welding-synchronizing magnetic control device has the characteristics of small volume, convenience for regulation, small electromagnetic interference, good waveform consistency, high exciting current regulating precision, low power loss and the like, has the overall efficiency of more than 90%, is applicable to multiple occasions such as TIG (tungsten inert gas) welding, MIG (metal inert gas) welding, MAG (metal active gas) welding and CO2 gas shielded welding, and has wide market prospect and wide application prospect.

The invention provides a system and a method for controlling a medium consistency disc grinder in a fine tuning way. The system comprises a temperature monitoring module, an equipment operation monitoring module, a pulping quality control module, a current detection module, a displacement control module, a fine tuning servo control module and a cutter advance and retreat control module, wherein the pulping quality control module, the current detection module, the displacement control module, the fine tuning servo control module and the cutter advance and retreat control module are sequentiallyconnected; the output end of the temperature monitoring module is respectively connected with the temperature monitoring module and the cutter advance and retreat control module; and the output end of the cutter advance and retreat control module is respectively connected with a hydraulic device and an end surface transmission device of the medium consistency disc grinder externally. The method comprises the following steps: combining the fine tuning servo control module with the data of displacement control module and the current detection module for computing; controlling the action of thehydraulic device and the end surface transmission device according to a computing result by the cutter advance and retreat control module; and realizing the spacing adjustment of grinding sheet assemblies, wherein the temperature monitoring module monitors the temperature of a mainshaft bearing of the medium consistency disc grinder in the process. The invention realizes the automatic pulping control of the medium consistency disc grinder, reduces the manual operation, enhances the adjustment precision of the spacings of the grinding sheet assemblies and also improves the pulping quality and the pulping efficiency.

The invention relates to a belt sander and a working method thereof, and belongs to the field of mechanical equipment. The belt sander comprises a belt sander driving device and a belt sander base, and is structurally characterized in that an upper polishing wheel assembly, a lower polishing wheel assembly, a tensioning deviation rectifying device and an abrasive belt are further included, the upper polishing wheel assembly, the lower polishing wheel assembly, the tensioning deviation rectifying device and the belt sander driving device are all installed on the belt sander base, the upper polishing wheel assembly, the lower polishing wheel assembly, the tensioning deviation rectifying device and the belt sander driving device are matched through the abrasive belt. According to the belt sander and the working method thereof, the abrasive belt is driven by the belt sander driving device to rotate on the upper polishing wheel assembly, the lower polishing wheel assembly and the tensioningdeviation rectifying device, then a workpiece is polished through the abrasive belt, tensioning and deviation rectifying of the abrasive belt can be adjusted through the tensioning deviation rectifying device. The belt sander has the advantages of being stable in operation, convenient to adjust, low in production cost and capable of ensuring the quality of the workpiece.

The invention discloses rotary trimming shears of which lateral clearances and overlapping quantities of cutterheads can be subjected to closed-loop regulation and control. The rotary trimming shears comprise a trimming shears device and a regulation and control system, wherein the trimming shears device comprises a tool rest, a lower cutter shaft, an upper cutter shaft, an upper cutterhead, a lower cutterhead, a lateral clearance adjustment motor and an overlapping quantity adjustment motor; and the regulation and control system comprises a controller, an upper cutter shaft position detection sensor, a lower cutter shaft position detection sensor, an upper cutterhead position detection sensor and a lower cutterhead position detection sensor, and the controller controls the lateral clearance adjustment motor and the overlapping quantity adjustment motor according to detection signals of the sensors. The upper and lower positions of the upper cutter shaft and the lower cutter shaft are detected by the two sensors respectively so as to obtain accurate overlapping quantities; meanwhile, the axial positions of the upper cutterhead and the lower cutterhead are detected by the other two sensors respectively so as to obtain accurate lateral clearances; and the accurate overlapping quantities and the accurate lateral clearances are taken as evidences of motor adjustment, so that the closed-loop regulation and control of the lateral clearances and the overlapping quantities are realized, and the adjusting accuracy of the lateral clearances and the overlapping quantities is effectively improved.

The invention relates to a test device for the large-flow performance of an electrically adjusted valve, and a test method of the test device. The test device comprises an air source module, a pressure regulating module, a flow measuring module, an air heating module, a test bed and an exhaust module which are sequentially connected through pipelines; and pressure sensors and temperature sensors used for detecting an inlet and an outlet of the valve are arranged in the pipelines at the two ends of the test bed. The test device is high in adjusting precision, easy to implement, rapid to implement, easy to operate and convenient to maintain, can meet the test requirements of an electrically adjusted valve product, and is wide in application range.

The invention provides a high-throughput large-aperture high-precision lens four-dimensional on-line focus controlling device, which relates to a lens on-line focus controlling device and solves the problem that a special lens regulating mechanism for carrying out three-dimensional precise regulation is lacking. In the high-throughput large-aperture high-precision lens four-dimensional on-line focus controlling device, a lens is arranged in a lens frame which is arranged in a lens frame runner, the lens frame runner is connected with a lifting frame, the lifting frame slides in a first guide rail and a second guide rail in the vertical direction, and a horizontal frame slides in a third guide rail and a fourth guide rail in the transverse direction. The high-throughput large-aperture high-precision lens four-dimensional on-line focus controlling device disclosed by the invention is applied to lens on-line focus control.

The invention aims at providing a rubber layer online automatic eccentric adjustment device and an eccentric adjustment method. The rubber layer online automatic eccentric adjustment device comprisesa machine head, an online thickness detector, an eccentric adjustment device body and a controller, wherein the online thickness detector, the eccentric adjustment device body and the controller are arranged on the front side of the machine head. The machine head comprises a machine body, an inner tube, a mouth mold, an adjustment convex ring, a pressing ring and a plurality of adjustment screws,wherein the sidewall of the machine body is provided with a rubber inlet; the inner tube is arranged in the machine body in a penetrating mode and is provided with a center hole; the front end of theinner tube is sleeved with the mouth mold, and the rear end of the inner tube is provided with an outer convex ring; the adjustment convex ring is arranged at the front end of the machine body, and the inner diameter of the adjustment convex ring is greater than the outer diameter of the outer convex ring; the pressing ring is blocked at the front end of the outer convex ring and is detachably connected with the front end of the adjustment convex ring; the sidewall of the adjustment convex ring is provided with screw holes in the same number as the adjustment screws, and the screw holes are distributed in the circumference of the adjustment convex ring in the axial direction; screw rods of the adjustment screws press the outer sidewall of the outer convex ring and are in screwed connectionwith the screw holes in a one-to-one correspondence mode. The rubber layer online automatic eccentric adjustment device can find out the bias occurring to a rubber layer in time and is high in eccentric adjustment efficiency and eccentric adjustment accuracy.