11results about How to "Improve driving precision" patented technology

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.

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.

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.

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 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.