13results about How to "Precise angle control" patented technology

The invention provides a dexterous hand finger joint angle control method, device and system and a medium, and relates to the technical field of dexterous hands. The joint angles of the fingers of the dexterous hand comprise the first joint angle and the second joint angle, the first joint angle and the second joint angle belong to active degrees of freedom, and the control method for the joint angles of the fingers of the dexterous hand comprises the steps that a control instruction for the fingers of the dexterous hand is obtained; according to the control instruction, the tracking control law of the first joint angle and the tracking control law of the second joint angle, the first joint angle and the second joint angle are controlled, the tracking control law of the first joint angle and the tracking control law of the second joint angle are determined based on a superspiral sliding mode control algorithm and a dynamic model of the finger. Through the tracking control law designed based on the super-spiral sliding mode control algorithm and the dynamic model, the stability and precision of dexterous hand finger joint angle control are improved.

The invention discloses an air rudder and an aircraft, and relates to the technical field of aircrafts, the air rudder comprises an integrated rudder body, a rudder leading edge and a thermal barrier coating, the integrated rudder body comprises a rudder frame, a rudder shaft and a rib connected with the rudder frame, and a rudder surface wrapping the rudder frame and the rib, and the integrated rudder body is configured to be formed through 3D printing; the rudder leading edge is installed at the front end of the rudder frame, and the control surface is coated with the thermal barrier coating. The rudder body is formed through 3D printing, mechanical connection between a rudder shaft and a rudder surface in a traditional air rudder is omitted, the risk that the air rudder is overheated and large in deformation amount and finally breaks down due to mechanical connection between the rudder shaft and the rudder surface along with the increase of the speed of an aircraft is improved, and the integrated rudder body can bear higher force loads and thermal loads under the flight working condition; it is ensured that the front edge of the rudder meets the requirement for bearing heat flow scouring, the short-time 1000 DEG C heat protection performance and the long-time 600 DEG C heat protection performance can be achieved through the thermal barrier coating, and the air rudder provided by the invention guarantees the bearing capacity and the heat protection capacity under the condition that the requirement for light weight is met.

The invention relates to the technical field of building engineering, and discloses an annular wall embedded part mounting construction method which comprises the following steps: S1, determining the plane position of the circle center point of an annular wall according to a building reference point and a design drawing; s2, a concrete foundation is dug out and used for installing a center stand column; s3, paying off of the annular wall body is conducted under the guidance of a protractor, and on-site splicing is conducted through narrow-strip-shaped formworks; s4, after construction of the reinforcing steel bars and the formwork is completed, embedded parts are installed; s5, a leveling instrument and a self-made adjustable positioning tool are used for conducting secondary checking on the center point position and the elevation of the embedded part; s6, after the positions and the elevations of the embedded parts are confirmed to be correct through secondary checking, welding construction is conducted; and S7, after welding is completed, annular wall body concrete pouring is conducted. The center point is used for erecting the graduator in the construction process, and the self-made adjustable positioning tool is combined for installation and checking, so that the installation precision of the embedded part can be effectively ensured.

The utility model discloses an arm support and a drill jumbo. The arm support comprises a base, an arm body, a pitching drive and a side-sway drive. The first end of the arm body is connected to the base, and the arm body has a pitch stroke and a side-sway stroke on the base; the first end of the pitching drive is connected to the base, and the second end of the pitching drive is hinged to the arm body through a first hinge point; the first end of the side-sway drive is connected to the base, and the second end of the side-sway drive is hinged to the arm body through a second hinge point; the first hinge point and the second hinge point are both located at the bottom of the arm body. The cantilever crane is applied to the field of rock drilling equipment, the working range of the cantilever crane can be effectively enlarged, and the overall size of the trolley is reduced.

The utility model discloses a kind of inclination angle adjusting control devices, including two angle adjusting supports, two described angle adjusting supports are evenly including vertical pole, inclined pole, adjusting rod, the vertical pole is set along vertical direction and is fixedly installed on fixed part, the inclined pole one end is hinged with vertical pole, the other end is hinged with the one end of adjusting rod, the other end of the adjusting rod is hinged with vertical pole;The adjusting rod adopts two-section structure, including upper adjusting rod and lower adjusting rod, the opposite one end of the upper adjusting rod and lower adjusting rod can be position adjusted, and locking is carried out.The device covers the angle 30-50° commonly used in inclined pole construction, device each component can be disassembled, maintenance is convenient, angle control is accurate, easy to operate;Inclined pole and enclosure structure horizontal component connection place need not to be strengthened processing, save construction cost and construction period, and the quality of inclined pole construction is guaranteed.

The application belongs to the technical field of automatic driving, and discloses an EPS control method, device, equipment and storage medium for automatic driving. When a vehicle is in an automatic driving mode, whether a driver's steering intervention exists in a steering wheel of the vehicle is detected. If the driver's steering intervention exists in the steering wheel of the vehicle, operation information of the driver on the steering wheel is acquired. Control coefficients of an angle control module and a control coefficient of a power assistance control module are adjusted according to the operation information. In this way, the EPS angle control is more accurate, the angle is not over-adjusted, and in the automatic driving mode, the driver is allowed to adjust the steering wheel, a good operation feeling is achieved, and the driving experience and safety of the driver are improved.

The utility model provides a kind of carrying power mechanical equipment belongs to rail train technical field, to solve the problem in prior art, through artificial overturning traction beam is not only inefficient, and process is complicated, and a large amount of manpower and time cost are wasted;Including the upright column connected with the end of manipulator, upright column bottom is equipped with crossbeam, the side of crossbeam is slidably connected with two clamps, two clamps are driven by being equipped with driving device on crossbeam;The opposite end of two clamps is equipped with clamping plate, clamping plate is rotatably connected with clamp by pivot, pivot is driven by being equipped with rotating device on clamp;In the utility model, the carrying power mechanical equipment can realize automatic grabbing, carrying and overturning function, effectively replaces the operation mode of artificial overturning traction beam. Improve the working efficiency of traction beam pressure test, reduce manual intervention, reduce manpower cost and labor intensity, avoid the possible mistake of artificial overturning, improve the safety and reliability of test process.

The utility model relates to the technical field of LED projection lamps, and discloses an LED projection lamp control device which comprises an LED module, a fixing frame, a connecting plate, a heat dissipation table, a supporting frame, a rotating roller and a control assembly, the control assembly takes a servo motor as a power source, and the motor drives a driving gear to rotate. The driving gear is meshed with a plurality of connecting gears, then the connecting gears are matched with tooth grooves in the inner wall of the rotary drum, power is transmitted to the rotary drum, the diameter ratio of the driving gear to the rotary drum is 1: 3, the planetary gear structure is excellent in motor torque lifting performance, stable rotation can be ensured when a heavy LED module, a heat dissipation table and other structures are driven, and the service life of the motor is prolonged. And the rotating drum rotates to drive the rotating roller through the connecting disc and the connecting rod, so that the connecting plate and the LED module rotate, and the angle of the projection lamp is controlled. By means of the structural design, accurate transmission ratio control can be achieved, the rotation angle of the LED module can be accurately adjusted, and the requirement for accurate angle control in the modern illumination field is met.

The present invention discloses a fully automatic waste-clearing flat die-cutting machine and a method for using the same. A working box is fixedly connected between a paper feeding mechanism, a die-cutting mechanism and a waste-clearing mechanism. The front end of the working box is fixedly connected to a containing box. A U-shaped limiting track is fixedly arranged at the rear right side of the inner cavity of the containing box. The present invention relates to the technical field of die-cutting machines. The fully automatic waste-clearing flat die-cutting machine and the method for using the same can realize high-precision automatic flipping of a cardboard during the up-and-down movement of the flipping frame assembly through the mutual cooperation between a screw rod, a flipping frame assembly, teeth, a first guide groove and a second guide groove. The meshing design of the teeth and the flipping frame assembly enables accurate angle control of the cardboard during the flipping process, thereby ensuring the accuracy of the flipping angle. This high-precision flipping ensures that the cardboard can be accurately aligned during double-sided die-cutting processing, thereby avoiding the decrease in die-cutting accuracy due to flipping errors, thereby ensuring stable product quality.

The turnover clamp for the machining technology comprises a U-shaped base, an adjusting mechanism is arranged at the top of the U-shaped base, the output ends of the two sides of the adjusting mechanism are each connected with a pushing plate, the tops of the side edges of the pushing plates are rotationally connected with a driven rotating assembly, and the output ends of the driven rotating assemblies are connected with a clamping assembly. A transmission rotating assembly is arranged on the pushing plate and located below the driven rotating assembly. Compared with the prior art, the clamp has the following beneficial effects that through the design of the driven rotating assembly, the transmission rotating assembly and the clamping assembly, the clamp can turn over by 90 degrees every time when clamping a part, the part needing to be machined can be fixed at a desired angle, multi-face machining can be conducted on the part, and the machining efficiency is improved. Convenience is improved, and the problem that inconvenience is caused when technological operation is conducted on the front face and the back face of the unmanned aerial vehicle component due to the fact that the unmanned aerial vehicle component cannot be turned over after being fixed through a machining clamp is solved.

The invention discloses a green, energy-saving and consumption-reducing device applied to a polyester polyol production process, and relates to the technical field of polyester production, the green, energy-saving and consumption-reducing device comprises a plurality of heat collection mechanisms, each heat collection mechanism comprises light gathering ball glass and a mounting shell, the light gathering ball glass is mounted at the top of the mounting shell, and the light gathering ball glass is mounted at the bottom of the mounting shell; the dynamic coherence assembly is installed in the installation shell, the sun position is tracked in real time under the cooperation of the heat collection following assembly, the dynamic coherence assembly and the coherence heat collection assembly, it can be ensured that the whole device can accurately track the sun day by day through an accurate sun position time control algorithm, full-angle azimuth tracking of a reflective mirror on a collecting lens is achieved, and the tracking efficiency is improved. According to the system, maximum reflection adjusting operation during light collection is ensured, maximum sunlight collection is achieved, then the position of the collecting lens is accurately controlled, the heat energy collection efficiency is improved, the production efficiency is effectively improved, energy consumption is reduced, and heat energy utilization is more efficient under cooperation of the variable control assembly.

The invention discloses pneumatically-driven endoscope foreign matter scissors which comprise a cylindrical shell, a bottom plate, a guide plate, an air cylinder and scissors. The bottom plate is fixed in the cylindrical shell in the axial direction, the guide plate is fixedly assembled above the bottom plate through a spacing column, and guide grooves used for controlling the scissors to be opened and closed are symmetrically formed in the guide plate; a straight sliding groove is formed in the bottom plate in the axial direction, a lower sliding block is assembled in the straight sliding groove in a sliding mode, an upper sliding block is assembled on the lower sliding block, and the scissors are assembled between the upper sliding block and the lower sliding block. Guide columns are mounted on scissor handles on two sides of the scissors and are positioned in the corresponding guide grooves; a vertical plate is fixed to the tail end of the bottom plate, the end of a cylinder body of the air cylinder is fixed in a mounting hole of the vertical plate, and the end of a piston rod of the air cylinder is fixedly connected with the upper sliding block. According to the endoscope foreign matter scissors, the accuracy and safety of endoscope operation are improved, the application range of the endoscope foreign matter scissors in shearing operation under various endoscopes is expanded, and the endoscope foreign matter scissors have wide clinical application value.