5results about How to "Improve shape and position accuracy" patented technology

The application discloses a high-lifting oil cylinder base boring machining equipment, which comprises a positioning structure unit and a boring machining unit. The positioning structure unit comprises a positioning base, a positioning driving assembly, a moving seat, a positioning plate, a longitudinal fixing assembly and a transverse fixing assembly. The moving seat is installed on the positioning base through the positioning driving assembly. The positioning plate is installed on the moving seat. A plurality of parallel long-slot clamping grooves are formed in the positioning plate. The longitudinal fixing assembly is installed at one end of the positioning plate. The transverse fixing assembly is detachably installed at the other end of the positioning plate. Through the cooperation of the positioning structure unit and the boring machining unit, the high-lifting oil cylinder base can be accurately positioned, fixed in multiple dimensions and adaptively bored.

The present application relates to the technical fields of intelligent manufacturing and automation control, and discloses a kind of intelligent regulation and control methods for the wall thickness of crucible spin pressing in piezoelectric single crystal growth, comprising: collecting data in the process of spin pressing, and obtaining stable acquisition sequence by preprocessing;Stable acquisition sequence is fused by adaptive weighted fusion and Kalman filtering, and the fused wall thickness is obtained by fusing the laser thickness value and the wall thickness value and compensation value respectively mapped by the spin pressing force, torque and eccentricity;Calculate the comprehensive deviation vector of wall thickness deviation, local wall thickness thinning rate, eccentricity deviation and roundness error;Based on the comprehensive deviation vector and the wall thickness deviation, the fuzzy adaptive PID output correction value and the hierarchical threshold comparison are executed in parallel to generate pass jump and trajectory reconstruction instructions, and the closed-loop cooperative control is formed by issuing the numerical control spin pressing system;After each pass is completed, the wall thickness distribution is obtained by fusion and solution, and the deviation is determined to add compensation pass or trajectory reconstruction, and iteration is carried out until the requirements are met.The present application realizes the online intelligent closed-loop regulation and control of the wall thickness of crucible spin pressing.

The utility model discloses a kind of hydraulic bearing devices for twenty-roller mill frame machining, including outer sleeve, end cap, inner sleeve and extension sleeve, inner sleeve is coaxially arranged in the inner side of outer sleeve, and the extension sleeve coaxial with it is integrally formed and processed in one end of outer sleeve, the inner diameter of extension sleeve is less than the inner diameter of outer sleeve and forms step at the interface of both;The other end of outer sleeve is fixedly connected with end cap by bolt, and through hole for high-precision boring bar is provided in the middle of end cap. The hydraulic bearing device can make the tooling composed of high-precision wallboard and high-precision boring bar and the like, ensure the machining precision of mill frame plum-blossom cavity, make the deformation of roll system extremely small during rolling process, obtain very accurate thickness deviation in the whole width direction of rolling, and have the advantages of simple operation, high reliability, low cost and the like.

This invention discloses a method, device, and medium for compensating for the machining of large thin-walled parts using a robot. The method includes: acquiring industrial robot parameters, large thin-walled part parameters, and machining process parameters; establishing a kinematic model based on the industrial robot parameters, and identifying the robot's joint stiffness matrix based on the kinematic model; establishing an end-effector stiffness performance evaluation index based on the joint stiffness matrix; constructing a deformation prediction model based on the machining process parameters and the large thin-walled part parameters; predicting the robot's tool tip deformation and the large thin-walled part machining deformation based on the end-effector stiffness performance evaluation index and the deformation prediction model, respectively; and adjusting the robot's pre-determined theoretical machining pose according to the robot's tool tip deformation and the large thin-walled part machining deformation to determine the compensated actual machining pose. This method achieves a significant improvement in the dimensional and positional accuracy of large thin-walled part machining.

This utility model discloses a rocket-assisted unmanned aerial vehicle (UAV) launch device, relating to the technical field of UAV launch equipment. The device includes a base, a launch pad, and a constant-force release mechanism. The base achieves 360° heading adjustment via a rotating gear. The base support is hinged to the launch pad. An adjustment component can adjust the launch pad's pitch angle. An inverted T-shaped slide rail on the launch pad cooperates with the UAV's slider. The constant-force release mechanism ensures the UAV is released when the rocket thrust reaches the specified level. This device offers flexible heading adjustment, precise pitch angle adjustment, and stable and reliable launch and release, effectively improving the efficiency and safety of UAV launches.