43results about How to "Easy to control synchronously" patented technology

A measuring device and a measuring method for the position of a reticle stage of a scanning lithography. Several laser interferometers are adopted in stead of capacitance sensors to allow the sensors in the horizontal and the vertical directions to be consistent, so the synchronous control of signals is convenient and the measuring range measured in the vertical direction is increased. In addition, interferometric light can be introduced from any horizontal direction by mounting a 45-degree reflector at the top of the objective, so measurements in the vertical direction can be carried out within a large moving range; and weight distribution of the interferometers measuring in every direction is introduced during the measurement of the inclination amount, so the measurement of the reticle stage position is more accurate.

The invention relates to the technical field of capacitor production. Automatic production equipment of a thin-film capacitor comprises a rack, and a feeding conveying device, a clamping and transferring device, a multifunctional forming device, a rotary material overturning device, an inverted conveying device, a pipe penetrating device and a pipe pressing device which are mounted on the rack, the feeding conveying device is connected with the clamping and transferring device, and the multifunctional forming device is located under the clamping and transferring device. The multifunctional forming device is connected with the inverted conveying device through the rotary material overturning device. The pipe penetrating device and the pipe pressing device are located over the inverted conveying device, the rack is further provided with a discharging barrel, and the discharging barrel is connected with the discharging side of the inverted conveying device. According to the invention, movement between film capacitor stations is efficient and positional accurate, the pins are flat and uniform in length, twice bending is completed by one action, and the forming and bending efficiency ishigh; the mobile capacitor is inverted to position a capacitor pin, so that pipe penetration is facilitated; and the heat shrink tube is integrally assembled, and the success rate of pipe penetrationis high.

The invention discloses a construction method of a complex space truss integral hoisting system. The hoisting system comprises an external ring type truss, a main truss connected to the interior of the ring type truss, a coupling beam connected between the ring type truss and the main truss, truss columns connected to the joint of the main truss and the ring type truss, and hoisting frames arranged on the main truss and the ring type truss correspondingly. The overall lifting process of the space truss is simulated through three-dimensional software such as BIM software, and on-site lifting construction can be effectively guided; through pre-arching compensation and monitoring deformation control in the process, the stress uniformity and the mounting precision in the lifting process can be effectively guaranteed; the space truss is partitioned, so that unit splicing is facilitated, the mounting time can be guaranteed, and the mounting precision can also be guaranteed; through overall trial lifting and graded lifting, the installation space of lifting equipment is met, synchronous control during lifting is facilitated, and the in-place installation precision is guaranteed.

The invention relates to a bearing counting packaging machine. The bearing counting packaging machine comprises a rack, a placing mechanism, a pre-conveying device, a separating device and a packagingmachine body, the placing mechanism is fixed to one end of the upper surface of the rack, the packaging machine body is fixed to the other end of the upper surface of the rack, a discharging outlet of the placing mechanism directly faces one end of the pre-conveying device, and the other end of the pre-conveying device directly faces the feeding end of the packaging machine body. During using, aworker can directly place bearing parts into the placing mechanism, the bearing parts are preliminarily arranged under the action of internal components of the placing mechanism and then slide from the discharging outlet of the placing mechanism onto a pre-conveying belt of the pre-conveying device, the multiple bearing parts are linearly arranged on the pre-conveying belt, then the bearing partsare conveyed onto a feeding conveying belt of the packaging machine body at equal intervals through the separating device, the bearing parts are packaged at the next step, and the whole process can befully automated.

The invention relates to a conveniently adjusted newborn nursing bed which comprises a first shell, a second shell, a third shell, a storage mechanism, a rotating mechanism, a ventilation mechanism, awinding mechanism and a lifting mechanism. The second shell is arranged on one side of the first shell, the third shell is arranged on the other side, far away from the first shell, of the second shell, the storage mechanism is arranged in the second shell, the rotating mechanism is arranged on one side, far away from the second shell, of the storage mechanism, the ventilation mechanism is arranged on one side, far away from the storage mechanism, of the rotating mechanism, the winding mechanism is arranged on one side, far away from the rotating mechanism, of the ventilation mechanism, and the lifting mechanism is arranged between the first shell and the third shell. The conveniently adjusted newborn nursing bed is provided with the ventilation mechanism, inner air in the bed can be circulated, air flow and illumination can be softer in the working process of the ventilation mechanism by the aid of a wind shielding plate and a light shielding plate below the ventilation mechanism, and the bed is more comfortably used.

The invention discloses a control method for a multi-axis synchronous movement with a high speed and a high precision based on a double clock, and the final purpose is to output a pulse sequence and direction signals to a servo drive of each shaft. The method comprises steps of: determining an output time and a direction of a pulse through the calculation; determining a size clock period accordingto the maximum movement speed of each shaft and the input pulse range; converting the time and direction signals into pulse direction numbers, and storing the pulse direction data in a data file in the form of a two-dimensional array; reading and analyzing the pulse direction number of the two-dimensional array format in the data file by a numerical control device; uninterruptedly converting thepulse direction numbers of the two-dimensional array format into pulse and direction signals, by the switch and the timer, and the large-cycle clock is used as the synchronization signal; and inputting the signals to the servo drive, so that the trajectory movement is completed. According to the control method for the multi-axis synchronous movement with the high speed and the high precision basedon the double clock, the method realizes the control of the multi-axis synchronous movement with the high speed and the high precision through the calculation and hardware synchronous output method;improves the processing efficiency by the high speed; and improves the processing quality of the product with the high precision.

The invention relates to a voice-coil-motor-driven high-speed switch valve. A voice coil motor is utilized to directly convert electric energy into rectilinear motion mechanical energy so as to drive the switch valve core to reciprocate without any intermediate switching mechanism. The voice-coil-motor-driven high-speed switch valve has the advantages of simple structure, no contact, no abrasion, low noise, high speed, high precision and the like. The valve core adopts a split balance-type cone valve structure, and thus, can be subjected to balanced stress in the high-speed switch valve opening/closing process, thereby enhancing the sealing reliability of the valve port, avoiding the leakage of the system, enhancing the pressure/flow control precision, avoiding the energy dissipation and having high pollution resistance. The high-speed switch valve has the characteristics of high response speed, high flow rate, small size, light weight and simple structure, is suitable for gas media and also suitable for system pipelines and the like using oil-base, water-base or any other working medium, is used for controlling the high-frequency opening/closing of the fluid medium, and has very important engineering application value.

The invention discloses a magnetic levitation system traverse table. The magnetic levitation system traverse table is arranged among multiple railway track lines to switch a magnetic-levitation train borne by the magnetic levitation system traverse table among the railway track lines. The magnetic levitation system traverse table comprises multiple tracks and a movable beam, the tracks are arranged on a foundation in parallel, and each track comprises a pin tooth track. The movable beam crosses the tracks and is connected with each track through a driving piece, and each driving piece comprises a gear which is matched with the corresponding pin tooth track. The movable beam bears the magnetic-levitation train, and the gears drive the movable beam to move among the railway track lines when rolling along the pin tooth tracks. The magnetic levitation system traverse table is safe, reliable, high in precision and few in fault, and facilitates deformation control.

The invention relates to the technical field of mechanical transferring devices, in particular to a box holding and transferring assembly and device and packaging box production equipment. The box holding and transferring assembly comprises a box holding mechanism, and the box holding mechanism comprises a first rotating part, at least two holding claw telescopic mechanisms and at least two holding claws; the holding claws are connected with the first rotating part through the holding claw telescopic mechanisms; and the first rotating part is connected with a power source and is driven by the power source to rotate, and the at least two holding claw telescopic mechanisms are connected with the first rotating part, so that the holding claws are driven by the first rotating part and the telescopic mechanisms to be close to or away from each other synchronously. By means of the box holding and transferring assembly, the first rotating part transmits power of the power source to drive the two holding claw telescopic mechanisms to synchronously act to drive the holding claws to be close to or away from each other. Compared with the prior art that each holding claw is provided with an independent air cylinder or hydraulic cylinder as the power source, the number of the power sources is reduced, the assembly and debugging process of the assembly is simplified, and synchronous control over actions of the holding claws is facilitated.

The invention discloses a self-guiding type escalator head-bump prevention protection plate, and belongs to the field of escalators. The self-guiding type escalator head-bump prevention protection plate comprises a protection plate body, an inclined guiding surface is arranged at the front end of the protection plate body, a mounting groove is formed in the guiding surface, a guiding assembly is connected in the mounting groove, and comprises guiding rotating rods, the multiple guiding rotating rods matched with the mounting groove are rotationally connected in the mounting groove, guiding rotating rollers are fixedly connected to the outer ends of the guiding rotating rods, and a plurality of guiding lantern rings are arranged at the outer ends of the guiding rotating rollers in a sleeving mode. Through cooperation of the guiding surface and the guiding assembly, when a child keeps the head or the body out of an escalator, the direction of the head and the body of the child is guided, the direct collision force is effectively reduced, the child is protected, and the safety of the child taking the escalator is improved.

The invention discloses a full-digital numerical control hydraulic FRP pultrusion machine which comprises a feeding assembly, a heating assembly, pull-out assemblies, a first gear, a second gear and a clamping motor. A plurality of wire rollers of the feeding assembly are rotationally connected with a material table, a bottom belt is rotationally arranged in a first through hole, and a forming die of the heating assembly is arranged on one side of the wire rollers. A heating coil is wrapped outside. The two pull-out assemblies are connected with the material table in a sliding mode, and two clamping oil cylinders are connected with the clamping motor through the first gear and the second gear. A raw material is placed on the wire rollers, the raw material is input into the forming die to enable the heating coil to melt the raw material for formation, the clamping oil cylinders drive a clamping table to move downwards to be matched with the bottom belt to clamp the sectional material, a traction table moves below a traction oil cylinder to pull out the sectional material, and the two pull-out assemblies are alternately matched to continuously pull out the sectional material. And the same clamping motor controls the two clamping tables to move, so that the two clamping tables are matched more conveniently.