27results about How to "Improve driving precision" patented technology

The invention relates to a low-oscillation impact inertia piezoelectric actuator and a driving method thereof, and belongs to the field of precision machinery. The impact inertia driver comprises a base unit, a driving unit and a guide rail sliding block. The driving unit is a flexible hinge mechanism with a rhombic displacement amplification mechanism and is connected with the guide rail sliding block through a screw; and the piezoelectric stack is embedded in the rhombic amplification mechanism. The driving method of the device comprises the steps that when continuous zigzag driving voltage is applied to the piezoelectric stack, certain waveform voltage is applied to the electromagnet to conduct power-on and power-off operation on the electromagnet, based on the inertial impact principle, the resultant force of impact inertia force and magnetic force is larger than the friction force between the flexible hinge mechanism and the friction block, and the sliding block generates linear stepping motion. The invention has the advantages of simple structure, easiness in processing, assembly and control, capability of realizing high-speed large-stroke and high-load output, and no rollback displacement. The method has good application prospects in the fields of micro-nano operation, precise instruments, precision machining and the like.

The invention discloses a multi-channel fluid valve and a control method thereof, and relates to the technical field of valves. The multi-channel fluid valve comprises a valve body, a valve core and a valve core, the driving assemblies are oppositely arranged on the two sides of the valve body in the first direction; the valve element assemblies are connected with the output ends of the driving assemblies respectively, and the tail ends of the valve element assemblies are arranged in the flow channel holes of the valve body respectively. The multi-channel fluid valve solves the problems that control of an existing multi-channel fluid valve generally depends on manual operation or a simple electromagnetic operation mechanism, and many limitations exist: firstly, the manual control mode is not only inconvenient to operate, but also prone to cause misoperation due to human factors, so that the safety and stability of a system are affected; and secondly, the problems that the control modes are insufficient in precision and flexibility, complex and multi-thread fluid distribution and switch adjustment requirements are difficult to meet, and the requirements of the modern industry for autonomous design and precision control cannot be met are solved.

The invention relates to the field of microwave oven switches, and particularly discloses a radio frequency reed high-precision driving structure and a driving method thereof.The radio frequency reed high-precision driving structure comprises a frame, a radio frequency switch and a driving mechanism; the radio frequency switch comprises a radio frequency reed element and two conductor rods, and the two conductor rods are installed on the frame in a spaced mode. The radio frequency reed element is arranged opposite to the two conductor rods and can move towards the two conductor rods; the driving mechanism comprises a push rod and a plurality of leaf springs; the plurality of leaf springs are mounted on the frame; one end of the push rod is connected with the plurality of leaf springs, and the other end is connected with the radio frequency reed element and is spaced from the frame. According to the invention, the driving precision of the radio frequency reed is improved.

The invention provides an electronic control system and a drive-by-wire chassis system. The electronic control system comprises an electromagnetic valve driving chip, a system control chip and a power supply chip, m paths of first driving modules and N paths of second driving modules are integrated in the electromagnetic valve driving chip, each path of first driving module drives a corresponding electromagnetic valve at a high side or a low side, each path of second driving module drives a corresponding electromagnetic valve at a low side, and M + N is greater than or equal to 14; therefore, on the basis that multifunctional driving of the electromagnetic valve is met, the driving requirement of the electromagnetic valve is met. And as no external discrete device is arranged or an independent valve driving chip is additionally arranged, the reliability of the electronic control system is improved and the cost of the system is reduced. The system control chip outputs M + N paths of driving control signals to the logic control module according to external driving requirements on the M + N paths of electromagnetic valves; the power supply chip supplies power to all the first driving modules in the electromagnetic valve driving chip and the system control chip through power supply voltage.

The utility model discloses a kind of middle disc rotation driving mechanism of hardware machining machine, it includes gear ring, fixed on middle disc;Driving device, including fixed on upper support frame servo motor, linkage in the shaft rod assembly of servo motor, and gear installed on shaft rod assembly, gear meshing installation is on gear ring;Middle disc has relative upper disc stop state to be processed, in the state to be processed, each chuck seat is respectively corresponding set below each processing tool bit, the utility model uses the cooperation of servo motor+shaft+gear ring, completes the rotation driving of middle disc, drive is very stable, driving precision is high, and the stop and start of middle disc can be accurately controlled by servo motor, the high-speed operation of equipment can be satisfied, structure is stable, service life is long, and practicality is strong.

The embodiment of the present disclosure provides a piezoelectric ceramic capacitor driving circuit, which comprises a boost circuit, a full-bridge circuit and a boost control circuit, a voltage input end of the boost circuit is connected with a power supply voltage, a voltage output end of the boost circuit is connected with an input end of the full-bridge circuit to output a boosted voltage, the boost control circuit comprises a voltage sampling circuit, a lower tube opening detection circuit control circuit, two input ends of the voltage sampling circuit are connected with a positive phase voltage output end and a negative phase voltage output end of the full-bridge circuit respectively, an output end of the voltage sampling circuit is connected with a first input end of the lower tube opening detection circuit to output a feedback voltage, a second input end of the lower tube opening detection circuit is connected with a reference voltage, and an output end of the lower tube opening detection circuit is connected with a first input end of the control circuit. The driving circuit can drive a large load and can also improve driving precision.

The utility model discloses a differential mechanism and a vehicle. The differential mechanism comprises a shell, an input gear ring and a first half shaft. The first driven piece is arranged on the input gear ring and can synchronously rotate along with the input gear ring; the second driven piece is connected with the first half shaft and can synchronously rotate along with the first half shaft; the driving part is arranged on the shell, can synchronously rotate along with the shell and can axially move relative to the shell, the axial movement of the driving part relative to the shell has a first preset position, a second preset position and a third preset position, and the driving part is configured as follows: when the driving part reaches the first preset position, the driving part is combined with the first driven part and the second driven part; when reaching the second preset position, the driving part is combined with the first driven part and separated from the second driven part, and when reaching the third preset position, the driving part is separated from the first driven part and the second driven part; the driving device can drive the driving part to axially move relative to the shell, and three modes of differential speed, driving disconnection and slip limiting can be achieved through one driving device.

This application provides a multi-level pulse timing adaptive suppression method for agricultural machinery chassis domain controllers, comprising: acquiring the current heat integral count value and the measured temperature rise of the motor in the multi-level pulse timing; when a rheological unloading event is triggered and the measured temperature rise of the motor does not reach the rated temperature rise limit, identifying and deducting the erroneous accumulation part caused by the current rheological unloading event in the current heat integral count value to obtain a reset heat integral value; updating the state of the heat integral protection module by resetting the heat integral value, adjusting the motor drive control parameters, and determining the complete release condition of the next level drive pulse; transmitting the corresponding pulse control signal to the actuator of the agricultural machinery walking drive motor according to the complete release condition, and collecting the actual torque response data fed back by the motor actuator; judging whether the drive torque continuity is maintained based on the actual torque response data; if it is not maintained, returning to adjust the control parameters and release condition; if it is maintained, generating a qualified judgment result.

The utility model discloses a hardware machining machine, it includes frame, upper support frame is installed above the frame for cooperation support base plate, and the base plate top is equipped with rotary support disc and upper disc in proper order, and the rotary support disc is rotationally installed with middle disc, and the middle disc is surrounded with a plurality of chuck seat, and the upper disc is surrounded with a plurality of machining tool bits, rotation drive mechanism includes gear ring, first motor, axle rod subassembly and gear, main shaft drive mechanism includes second motor, screw rod subassembly, mounting seat and adapter seat, feeding and discharging transmission subassembly is linked in adapter seat, a plurality of swing link subassembly is linked in mounting seat, third motor is located on the upper support frame for driving driving wheel rotation, and the machining tool bit top is equipped with driven wheel, and the driving wheel and driven wheel between be equipped with synchronous belt, the drive of each mechanism in the utility model can be accurate control through servo motor, and the driving precision is high, and parameter adjustment is convenient, can satisfy the high -speed operation of equipment, and the structure is stable, and the equipment life is long, and the practicality is strong.

The utility model belongs to the technical field of optical equipment, and discloses a feeding and discharging device and a lens detecting and curing device, which comprise a detecting table, a measuring mechanism and a curing mechanism, an adjusting box is fixedly connected behind the top of the detecting table, a first gear is arranged in the adjusting box, and a first rotating shaft is fixedly connected in the first gear; a movable rod is fixedly connected to the front face of the first rotating shaft, a curing mechanism is arranged on the front face of the movable rod, a measuring mechanism is fixedly connected to the top of the curing mechanism, a supporting plate is fixedly connected to the top of the movable rod, and a first electric push rod is arranged on the left side of the supporting plate. The top and the bottom of the first electric push rod rotate respectively, vertical angle adjustment of the measuring mechanism and the curing mechanism is achieved, the phenomenon that distortion remarkably influences imaging quality and deviation is avoided, the phenomenon that the straightness error and the perpendicularity deviation of the two shafts are amplified due to the fact that the angles cannot be adjusted when the workbench moves is avoided, and then the detection precision is improved.

The invention relates to the technical field of five-axis machine tools, in particular to a five-axis machine tool rotary table driving device which comprises a rotary table, a sliding base and a machine tool body, the rotary table is rotationally connected to the sliding base along the vertical rotation axis, and the sliding base is slidably connected to the machine tool body in the X-axis direction. The linear driving device has the beneficial effects that the detection precision, the driving precision and the driving stability of the linear driving device are improved through the precise alignment of the reference point of the reading head assembly and the rotation center and the cooperative matching of rigid locking and thermal extension self-adaptive release functions realized by the clamp at the tail end of the lead screw; therefore, the adaptability of the linear driving device to use scenes with high precision requirements is improved, and the requirements for high-precision machining in the high-end manufacturing fields such as aerospace and mold manufacturing are met.

The utility model provides a driving module. The driving module comprises a box body connected between an air cylinder module and a spring module, a shifting fork assembly rotationally arranged in the box body, and a stop assembly arranged on the box body. The shifting fork assembly comprises a driving part reciprocating in the preset direction and a shifting fork driven by the driving part to rotate, the shifting fork is used for being connected with a valve rod of the valve, and the driving part can drive the shifting fork to be switched between a first rotation limit position and a second rotation limit position under driving of the air cylinder module and the spring module; the stop assembly comprises a first stop piece used for stopping the shifting fork at the first rotation limiting position and a second stop piece used for stopping the shifting fork at the second rotation limiting position, and the stop end of the first stop piece and the stop end of the second stop piece are each provided with a buffer pad. The driving module provided by the utility model can avoid damage caused by rigid contact between each retainer and the shifting fork, is favorable for improving the driving precision and prolonging the overall service life of equipment, and further has a good using effect.

The invention discloses an automatic dispensing and packaging line for traditional Chinese medicine, comprising a first frame and a second frame provided with a packaging material bin, the first frame is provided with a medicine box conveying device extending in the direction of the second frame, and the first frame located above the medicine box conveying device is provided with a medicine dispensing device; the second frame is also provided with a medicine box transfer device for transferring medicine boxes between the medicine box conveying device and the packaging material bin, the medicine box transfer device is provided with a flip mechanism, and the flip mechanism is provided with a medicine box clamping mechanism; it also includes a medicine box return device connected and matched with the medicine box transfer device, the other end of the medicine box return device extends to the initial end of the medicine box conveying device, and a medicine box cleaning and stacking station is provided between the two. The automatic dispensing and packaging of traditional Chinese medicine after dispensing are realized, and the work efficiency is effectively improved, the labor volume is reduced, and the labor intensity and labor cost are reduced under the premise of ensuring hygiene.

The invention provides an optical element driving device, which comprises a support carrier provided with a first groove; the linear piezoelectric brake is arranged in the first groove, and one end of the linear piezoelectric brake abuts against a driven part; the pre-pressing assembly is arranged in the first groove, one side of the pre-pressing assembly abuts against the side, away from the driven part, of the linear piezoelectric brake, the other side of the pre-pressing assembly abuts against the inner wall of the first groove, and pre-pressing force is provided for the linear piezoelectric brake and the driven part; wherein the driven part is the optical element, compared with traditional electromagnetic driving, the driving device adopts the linear piezoelectric brake to drive the optical element, the driving mode is low in noise and free of electromagnetic interference, and under the pre-pressing effect of the pre-pressing assembly, the friction force between the piezoelectric brake and the optical element is further increased; the driving precision is further improved, and the stability of the device in the operation process is guaranteed.

This application proposes a stepper motor drive correction system and method, relating to the field of stepper motor drive technology. The system includes an H-bridge, a sensing circuit, a sampling circuit, a current-to-voltage conversion circuit, a sine wave generator, a proportional amplifier, a comparator circuit, and a calibration control circuit. The sensing circuit samples the current of the low-side switch transistor of the H-bridge, which is then converted into a sensing voltage by the current-to-voltage conversion circuit according to a first preset ratio. The sine wave generator produces an ideal sine waveform, which is scaled by the proportional amplifier according to a second preset ratio to form a reference voltage. The comparator circuit compares the sensing voltage with the reference voltage and outputs the comparison result. Based on the comparison result, the calibration control circuit calibrates the first and second preset ratios sequentially, gradually reducing the error between the two voltages. Through these multiple calibrations, the system error is reduced to below a preset threshold, significantly improving the driving accuracy and smoothness of the stepper motor in high-microstepping mode.

The invention discloses an optical driving device driven by an electromechanical conversion component, which comprises a fixed component, a movable component, driving components respectively arranged on the fixed component and the movable component, and force applying components respectively arranged on the fixed component and the movable component, the supporting parts are respectively arranged between the fixed part and the movable part and are provided with guide parts respectively arranged on the fixed part and the movable part and balls arranged between the guide parts; and the fixed part and the movable part are pressed and connected with each other through the support of the balls and the guide parts under the force applied by the force applying part. In the structure of the ball guide part, the ball is made of a high polymer material. The problem that impact pits are generated on the guide surface due to impact force on the driving motor can be relieved, and the manufacturing cost is reduced while the driving precision of the driving device is ensured.

The invention provides a servo motor driving system. The input impedance of the feedback sensor is modulated by using the chopper circuit, the operational amplifier loop, the ripple suppression capacitor and the corresponding feedback electric loop, the modulation output of the input signal of the feedback sensor is realized, the PWM modulation amplifier is driven to correspondingly adjust the servo motor driving signal output by the PWM modulation amplifier, the driving efficiency of the servo motor is improved, and the service life of the servo motor is prolonged. And the stability and the driving accuracy of the system are improved. On the premise of keeping low power consumption, the equivalent input noise of the amplifier at the input end of the sensor can be effectively fed back, and electrode offset is restrained.

The utility model discloses a middle mold stripping mechanism of a container mold, and relates to the field of mechanical equipment. The device comprises an operation frame, a bearing seat frame and a fixing frame are coaxially arranged in the operation frame, the fixing frame and the operation frame are installed in a lifting mode, and the fixing frame is connected with a mold outer frame of a middle mold in an inserted mode. The utility model has the beneficial effects that the wine jar mould is supported by the bearing frame, and the middle mould is driven to move after the fixed frame is inserted into the mould outer frame of the middle mould, so that the middle mould is separated from the wine jar, the operation is labor-saving and simple, and the use is stable and safe.

The utility model discloses a pneumatic workpiece rotating platform which comprises a support. The supporting cross beam is arranged on the bracket, and the width of the supporting cross beam is smaller than that of the workpiece; the clamping assemblies are symmetrically arranged on the two sides of the supporting cross beam; the pneumatic driving assembly is in transmission connection with the supporting cross beam; the shield is fixedly connected with the bracket; the supporting assemblies are fixedly arranged at the four corners of the bottom of the support. The rotating platform is fixed stably, the rotating angle is accurate, machining is convenient and fast, and the machining efficiency is improved.

This application discloses a high-frequency isothermal actuator and flapping wing device based on magnetic shape memory alloy, including a drive box, a fixed hinge, a movable hinge, and a bionic wing. In this application, two pairs of electromagnets are installed in four directions on the magnetic shape memory alloy rod. Compared to using springs in a magnetic shape memory alloy actuator, this achieves rapid extension and retraction of the magnetic shape memory alloy rod, resulting in higher drive precision and speed. The design is simple, avoiding the impact of excessive heat generation on the drive effect in traditional actuators or flapping wing devices, and also avoiding the complex structural design of traditional flapping wing aircraft.

The invention belongs to the technical field of passive driving, and relates to a three-dimensional passive driving system based on a magnetic climbing effect and cavity autorotation, which comprises a magnetic suction working unit, a loading moving unit and a control unit. The working magnetic rod is stably attracted to the outer wall of the barrel of the working cavity through static magnetic attraction force formed between the working magnetic rod and the ferromagnetic rod, the magnetic climbing effect is generated by combining limiting of the constraint rod and rotation of the working cavity, three-dimensional passive driving in the sealed environment is achieved, only the simple annular electromagnet is arranged to serve as a direction regulation and control component, and the working efficiency is improved. Meanwhile, permanent magnet static magnetic force serves as basic power in the driving process, short-time power supply is conducted on the electromagnet only in the direction switching process, continuous power consumption is not needed, in addition, stable movement is achieved through cooperation of mechanical limiting of the constraint rod and static magnetic adsorption, complex control algorithm compensation is not needed, and the reliability is high. And when the system is shut down, the working magnetic rod is automatically self-locked under the action of static magnetic adsorption, and the driving precision and the motion repeatability are higher.

The invention provides a mining high-explosion cabinet three-station circuit breaker combined electric appliance, which comprises a three-station solid-sealed polar pole, an isolating switch driving mechanism, a vacuum circuit breaker operating mechanism and a grounding switch driving mechanism which are positioned in a high-explosion cabinet and integrated on a fixed mounting frame on a chassis truck, the three-station solid-sealed polar pole comprises a polar pole body integrally formed by epoxy resin, and an isolating switch, a vacuum arc-extinguishing chamber, a wire outlet end and an insulating pull rod which are fixedly sealed in an inner cavity of the polar pole body in an insulating manner. According to the invention, a highly integrated design is adopted, the structural layout is optimized, the occupation requirement of a mine power distribution space is reduced, the chassis truck can be directly moved out for maintenance or replacement, the grounding action can be completed without additionally operating a circuit breaker switch to be switched on, and the working efficiency is improved. The mining circuit breaker overcomes the defects of an existing mining circuit breaker product in the aspects of structural design, installation and use, maintenance and repair and safety and reliability, improves the insulating performance and environmental adaptability, simplifies the operation process, and reduces the maintenance difficulty.

The present invention discloses a driving device for a rope-driven super-redundant manipulator, comprising a frame for installing the driving device, and a multi-channel driving module uniformly installed in the frame. The driving module comprises a steel wire rope, a tension sensor, a fine-tuning component, an absolute value encoder, a guide wheel component, an optical axis, a ball screw, a slide assembly, a screw support seat, an optical axis support seat, a coupling, and a driving motor. The driving motor drives the ball screw to make the slide assembly translate along the optical axis, thereby controlling the steel wire rope and driving the super-redundant manipulator to move. The present invention realizes high-precision displacement control by using a ball screw and an absolute value encoder, and has high driving accuracy. The movable pulley shortens the screw stroke and improves the load capacity of the driving module. The fine-tuning component is combined with the tension sensor, and the preload force of each driving rope can be accurately adjusted, and real-time force feedback can be provided. The replaceable front guide assembly allows the driving device to be compatible with super-redundant manipulator arm bodies of different diameters.

The utility model discloses a carriage body expanding mechanism which comprises a transmission mechanism and a sliding mechanism, the transmission mechanism comprises a motor fixedly arranged on the bottom wall of a carriage body, a mounting base, a transmission shaft fixedly arranged at the driving end of the motor and a transmission rack penetrating through and arranged on the mounting base in a sliding mode, and the transmission shaft and the transmission rack are perpendicular to each other. A transmission gear is fixedly arranged on the transmission shaft and meshed with the transmission rack, and a connecting base is fixedly arranged at one end of the transmission rack and used for being fixedly connected to an expansion cabin side plate. The sliding mechanism is also arranged on the bottom wall of the compartment body, and the expansion cabin side plate is fixed to the sliding end of the sliding mechanism. The space occupied by the expansion mechanism can be effectively reduced, and the internal use space height is increased.

The utility model relates to a roller press for ceramic body forming, and belongs to the technical field of ceramic body forming, the roller press comprises a rack, a grinding tool placing mechanism and a rolling stroke mechanism, the grinding tool placing mechanism and the rolling stroke mechanism are mounted in the rack, and the rolling stroke mechanism comprises a two-axis moving module and a rolling assembly mounted on the two-axis moving module. The forming device is novel and compact in structure, adopts the rotating cylinder to drive the forming die to rotate, is reliable in transmission performance, can guarantee stable rotation of the rotating shaft by mounting the balance shaft sleeve on the surface of the rotating shaft, reduces damage to the motor, and is relatively low in overall failure rate and relatively simple and convenient to maintain.

The present application discloses a wire locking device, a doctor's console and a surgical robot, wherein a wire locking device comprises a connecting disk, an annular ring and a wire locker, wherein the wire locker comprises a locking screw and a wire locking body connected to the connecting disk, the wire locking body is provided with a pressure screw hole cooperating with the locking screw, and a wire fixing groove passing through the pressure screw hole is provided on the outer peripheral surface of the wire locking body. In the embodiment of the present application, the above-mentioned wire locking device, the doctor's console and the surgical robot are adopted, and the locking wire rope is limited in the radial direction of the wire locking body by cooperating with the locking wire rope, the pipe clamp and the wire fixing groove, and the locking wire rope and the pipe clamp are limited along the axial direction of the wire locking body by adjusting the position of the locking screw, wherein the locking screw does not directly contact the locking wire rope, thereby not causing any damage to the locking wire rope, thereby ensuring its service life, and the structure is simple, easy to process, manufacture and install, and the production cost is greatly reduced.