40results about How to "Accurate and stable operation" patented technology

The invention relates to a close type static pressure rotary table and a double way piston clamping mechanism thereof, which are assembled on a large or medium size numerical control machine tool. The close type static pressure rotary table is characterized in that the lower column of the rotary table body of a work bench and the inner bore of a bull gear adopt clearance fit in the form of coaxial basic hole, and laid on a slide seat together, and a guide pair with inverse pressure formed on the upper surface of a static pressure oil chamber is machined on the bottom surface of the bull gear with higher flatness and fineness and the slide seat; a pressure plate and a double way piston clamp are arranged on the periphery at intervals, butt-jointed static pressure oil chambers of the pressure plate and the static pressure block embedded on the pressure plate are communicated with the oil outlet pipe of a quantitative multi-head pump, so as to respectively provide static oil for the upper surface and the lower surface of the guide pair; the upper part and the lower part of the double way piston clamp are arranged above the bull gear and under the bull gear, a drive unit formed by a gear reducer is installed on the side surface of the slide seat, and the two gears of the drive unit are meshed with the bull gear, so as to transmit the torque and drive the work bench to revolve. The invention not only has the advantages of traditional open type static pressure rotary tables, but also has the advantages of strong offset load bearing ability and steady float height due to the close type structure, the load bearing ability of the large or medium size numerical control machine tool provided with the work bench is increased, the machining accuracy is improved, the installation work hour and the maintenance work hour are reduced, and the cost is decreased.

A tunable acoustic gradient (TAG) lens is provided including a lens casing, a refractive fluid, a controllable acoustic wave generating element (e.g., a piezoelectric vibrator) and an external reservoir configuration. An operational volume of the refractive fluid is contained in a casing cavity of the lens casing. The external reservoir configuration includes a deformable external fluid reservoir that contains a reserve volume of the refractive fluid and that is connected to the casing cavity by a flow channel. The flow channel enables the refractive fluid to flow back and forth between the casing cavity and the deformable external fluid reservoir in accordance with expansion and contraction of the refractive fluid (e.g., due to changes in temperature). The lens casing, deformable external fluid reservoir and flow channel are configured as a sealed system, with no intentional gas volume included in the sealed system.

The invention relates to a flange structure applicable to an infrared thermal imaging module, comprising a movement frame, a flange ring and clamping jaws. The movement frame is disposed at one side of the flange ring. The movement frame and the flange ring are connected by limiting guide pins, and the limiting guide pins can limit the angle of rotation of the flange ring relative to the movement frame. The flange ring is provided with strip-shaped hollow first slots, and the clamping jaws are arranged in the first slots. The middle of each clamping jaw is rotationally connected with the movement frame through a rotating shaft. One end of each clamping jaw can abut on a lens inside the flange ring, and the other end of each clamping jaw can abut on the edge of the corresponding first slot. Compared with the prior art, the flange structure of the invention is applicable to multiple different movement and lens combinations, has a wide range of application, is low in cost and high in speed of combination, and enhances the imaging effect of the movement and the lens.

A box lunch vending machine comprises a rack (1).A lifting mechanism and a transverse moving mechanism are installed on the rack (1), a connecting plate (16) is installed on a lifting part of the lifting mechanism, a storage box (8) is vertically installed on the rack (1), a first vertical groove (20) is vertically formed in the side, corresponding to the lifting mechanism, of the storage box (8) downwards from a box opening of the storage box (8), and a tray (6) is transversely installed in the storage box (8) and connected with the connecting plate (16).The vertical moving mechanism, the transverse moving mechanism and a box lunch separation device are arranged, manual operation can be simulated to achieve the whole complex process of taking out and carrying box lunches, and the box lunch vending machine has the advantages of being simple in structure, low in manufacturing cost and precise and stable to operate.

The invention discloses a silk-screen assembling machine and relates to the field of cigarette case production and processing. The silk-screen assembling machine comprises a silk-screen glue spreadingmechanism, wherein the silk-screen glue spreading mechanism comprises a first U-shaped rack; a back plate is arranged in the middle of the inner side of the first U-shaped rack; side plates are fixedly arranged at the two ends of the back plate; a limiting rod is fixedly arranged between the side plates and is positioned on one side of the back plate; a limiting ring is in sliding fit with the outer side of the limiting rod in a sleeving manner; an L-shaped plate is fixedly arranged at the top of the limiting ring; a first air cylinder is fixedly arranged on the side face of the L-shaped plate; an output shaft of the first air cylinder is fixedly connected with any of the side plates; and a connecting block is fixedly arranged on the obverse side of the limiting ring. The silk-screen assembling machine enables glue solution at the top of a paperboard raw material to be distributed more uniformly, so that the situation that the glue solution between the paperboard raw material and a case frame is insufficient or excessive is avoided, tackless or glue solution overflow between the paperboard raw material and the case frame is prevented, and the product quality is effectively improved.

The invention provides a multi-workstation high-speed cover distributing device comprising a workbench, a drum, at least three cover distributing mechanisms and a transmission mechanism. The cover distributing mechanisms are uniformly distributed at an outer edge of the drum and synchronously rotate according to same directions. Each cover distributing mechanism comprises a cover distributing cutter rest and a cover distributing cutter fixed at the top of the cover distributing cutter rest. The transmission mechanism comprises a driving wheel, a plurality of driven wheels and a synchronous belt. The driving wheel is connected with the driven wheels through the synchronous belt, the driven wheels are connected with the cover distributing cutter rest, and the driven wheels and the cover distributing mechanism are equal in number. By the at least three cover distributing mechanisms, tank covers can be always kept at the same horizontal positions during distributing, and instable discharging and blocking are avoided. The driving wheel is in linkage with the driven wheels through the synchronous belt, the driven wheels are combined with the cover distributing mechanisms, and finally the cover distributing mechanisms are driven to rotate at constant speed and in the same direction.

The invention provides a curved screen magnetron sputtering assembly. The curved screen magnetron sputtering assembly comprises a revolution and rotation umbrella rotating frame and a plurality of sets of cathode assemblies, wherein the plurality of sets of cathode assemblies are not in contact with the revolution and rotation umbrella rotating frame; the plurality of sets of cathode assemblies are distributed in the circumferential direction of the revolution and rotation umbrella rotating frame; each set of cathode assemblies comprises two cathode devices; each cathode device comprises a magnetic rod; the magnetic field directions of the two magnetic rods of each set of cathode assemblies can be adjusted; the revolution and rotation umbrella rotating frame comprises a rotation frame anda plurality of sets of revolution and rotation frames used for loading substrates; the rotation frame is arranged in a mode of being capable of rotating around the central axis of the rotation frame;the revolution and rotation frames are mounted on the rotation frame in a mode of being capable of rotating; and the plurality of sets of revolution and rotation frames are driven to revolute around the central axis when the rotation frame rotates. According to the curved screen magnetron sputtering assembly, a substrate frame drives the substrates to rotate and revolute at the same time, the magnetic field directions of the two magnetic rods of each set of cathode assemblies can be adjusted, and sputtering deposition is more uniform.

The invention relates to an automatic Tray feeding mechanism for SMT processing. The feeding mechanism comprises a rack, and the rack is provided with a feeding station, a discharging station and a left-right carrying mechanism. The feeding station and the discharging station are each provided with an up-down conveying mechanism, and the up-down conveying mechanisms are used for driving Trays to move up and down so as to complete feeding and discharging of the Trays. The left-right carrying mechanism comprises a rodless air cylinder, a linear rail, a supporting frame and a suction cup. The linear rail is fixed to the rack, the supporting frame is installed on the linear rail in a slideable mode, the rodless air cylinder is connected to the supporting frame and can drive the supporting frame to slide along the linear rail, and the suction cup is fixed to the supporting frame. According to the automatic Tray feeding mechanism for SMT processing, automatic feeding and discharging operation of the Trays is completed through mutual cooperation of the up-down conveying mechanisms and the left-right carrying mechanism, the qualified rate of products is increased and the production efficiency of the products is improved.

The invention discloses a portable physiotherapy instrument for treating rhinitis through light waves in a specific wavelength band. The portable physiotherapy instrument for treating rhinitis throughthe light waves in the specific wavelength band comprises a shell, a laser sheet arranged at the upper end of the shell, laser-emitting lamps arranged on the surface of the laser sheet, a condenser connected with the shell and a controller module arranged in the shell, wherein both the upper surface of the shell and the laser sheet are concave, the bottom of the shell is in a shape similar to a nose, and the shell is arranged in a bilaterally-symmetrical mode. The portable physiotherapy instrument for treating rhinitis through the light waves in the specific wavelength band has the advantagesthat the upper surface of the shell, the laser sheet and the upper surface of a base in the condenser are all designed to be concave, and the radians of the concave surfaces and the laser sheet conform to angle design of human nasal cavity engineering, so that laser at specific wavelengths can be guided to the interior of the nasal cavity precisely by light-guide cylinders, the precision of lasertherapy is greatly improved, and energy waste generated in use processes is reduced; and the laser sheet can be replaced by users independently, so that it is ensured that cross-infection among the rhinitis patients is avoided in the use processes.

The invention provides a washing machine bucket walking device and a control method thereof. The washing machine bucket walking device is provided with a synchronous detecting device including a detecting component and a detecting plate, the detecting plate is fixedly mounted on a driving shaft in a sleeving manner, installation of the detecting component meets the condition that when a bucket walking chain drives water buckets to normally move from a previous flushing station to a current flushing station, the detecting component can detect one detecting tooth, and the number K of the detecting teeth is set according to the driving sprocket wheel tooth number Z, the center distance L of the adjacent water buckets in the running direction of the bucket walking chain and the pitch P of thebucket walking chain, and when the device is in normal operation, the detecting component can detect one detecting tooth of the detecting plate when the bucket walking chain drives the water buckets to move to one flushing station so as to serve as a signal that a power device stops running; and when operation abnormalities happen, the detecting component cannot detect the detecting teeth when thewater buckets run to the flushing station for synchronous adjustment. The washing machine bucket walking device is simple in structure, low in cost and accurate and stable in operation.

The invention provides a closed-loop control method and system based on power pulse width driving. A plurality of blocks of a plurality of controllers are distributed in the system. Each closed-loop block detects the controlled object every other feedback detection period to obtain feedback parameters, and the feedback parameters are returned to the controller to be compared with corresponding setparameters; if the feedback parameter is not within the allowable error of the corresponding set parameter, determining that the feedback parameter is not within the allowable error; the driving object is started to adjust the feedback parameter of the controlled object to be within the allowable error of the set parameter. Therefore, the controlled object controlled by each closed-loop block realizes accurate optimal control on the feedback parameters; feedback recursion is carried out through optimal control of each closed-loop block, multi-target and multi-task stable operation adjusted bythe whole closed-loop control system is finally achieved, and the algorithm is not only suitable for a linear multi-task multi-target system, but also completely suitable for stable closed-loop control of a nonlinear system.

The invention discloses a water-saving irrigation tail end flow regulation, measurement and remote control device which is composed of an irrigation head, a pipe network, a flow regulation and measurement integrated device, a photovoltaic energy supply device and a remote intelligent control system. One end of the pipe network is connected with the irrigation head, a plurality of flow adjusting and measuring integrated devices are installed in the middle of the pipe network, each flow adjusting and measuring integrated device is provided with a corresponding photovoltaic energy supply device and a corresponding remote intelligent control system, each flow adjusting and measuring integrated device is composed of a valve body and a driving module, and the valve body adjusts flow through the opening degree. The driving module is composed of a stepping motor and a speed reducer, the driving module is used for driving the plunger to move and adjust the size, the remote intelligent control system is a remote adjusting valve opening degree decision-making module developed based on python, and the adjusting valve opening degree is metered and controlled through electric pulses. The device can monitor, regulate and control the flow of the irrigation tail end pipeline, has a unidirectional and bidirectional water outlet form, and is high in flexibility, simple in arrangement mode, independent and stable in operation, capable of being remotely operated and high in automation degree.

The invention discloses an auxiliary intubation robot device based on a visual scanning technology, and the device achieves the upward leaning of the head of a patient and the opening and exposure of an airway through the cooperation of head and neck posture regulation and control and a limiting and fixing mechanism, facilitates the subsequent intubation operation, and also limits and fixes the head of the patient. The problem that the head of a patient moves in the follow-up intubation process is avoided, safe and favorable conditions are provided for follow-up intubation, and efficient and safe automatic intubation operation is achieved on the basis of multi-axis movement of the robot arm in the visual scanning state through the design of a control table, the robot arm and a visual sensor in the robot arm assembly. finally, due to the adoption of a two-stage micro-control visual laryngoscope assembly, on the basis of one-time intubation positioning, accurate positioning of the tracheal catheter is achieved by means of a rotating structure, meanwhile, due to the fact that the movement amplitude in the whole process is small, harm to a patient is greatly avoided, and finally efficient, accurate and stable operation is guaranteed.

The present disclosure relates to a bypass switch used in a super-high voltage direct current transmission sub-module including a case; a first bus bar; a second bus bar; a fixing contact provided in a hollow part and connected to the first bus bar; a movable contact provided in the hollow part, and connected to the second bus bar so as to come into contact with or be separated from the fixing contact; an insulating cover coupled to the rear surface of the second bus bar, and having an accommodation part therein; a movable part extension rod provided on the accommodation part and coupled to the movable contact; and an actuator provided on the rear part of the insulating cover, and providing power for moving the movable part extension rod.

The invention relates to a tool piece for assembling a Z-axis lead screw of a laser cutting machine. The tool piece comprises L-shaped angle steel piece with two perpendicular faces, and a rectangular body with a stair-shaped cross section, wherein positioning screw holes are formed in the left side of the rectangular body, connecting screw holes are formed in the right side of the rectangular body, and edges of the rectangular body are connected with the L-shaped angle steel piece. According to the tool piece, a linear guide rail installation face serves as a standard, the parallelism degree of the lead screw and a linear guide rail is ensured, the device can more accurately and stably run, the service life of the device is prolonged, installation time of workers is greatly shortened, assembly accuracy of the workers is greatly lowered, and work efficiency is improved.