5results about How to "High coaxial precision" patented technology

The invention relates to the technical field of turning equipment, and discloses turning equipment for a precision bearing assembly, which comprises two symmetrically arranged chucks, a rotation driving assembly for driving the chucks to rotate, a driving base for driving the chucks to translate, and a cutting mechanism for cutting a workpiece, a plurality of first sliding grooves are formed in the chuck in the radial direction, the first sliding grooves are formed in the chuck in a penetrating mode, first sliding bases are slidably installed in the first sliding grooves, and sliding type fixing rods are arranged in the first sliding bases in a penetrating mode; through the arrangement of composite positioning of the axial adjustable sliding type fixing rod and the two-way double chucks, adaptive clamping of long cylindrical blanks with different axial lengths is achieved, and the fixing mode that inner hole multi-point supporting and end face pressing are combined is adopted; the problems of blank local deformation, rotation eccentricity and low coaxiality caused by a traditional clamping mode are effectively solved.

The application relates to the technical field of magnetic yoke punching sheet stacking, and particularly discloses a grabbing and stacking device for magnetic yoke punching sheets, which comprises a base frame, a storage module, a stacking module and a grabbing module driven by a gantry robot, the grabbing module comprises a visual positioning assembly for collecting visible light and near-infrared data, a solving unit for solving adsorption point coordinates based on a mask matrix, multi-modal fusion and a thermal deformation coefficient, a plurality of vacuum suction cups with a moving module, and an adsorption state detection assembly for detecting flatness and real-time pressure, and an adsorption force control unit for performing graded initial adsorption based on the flatness data and dynamic compensation based on the real-time pressure and a double safety threshold, the stacking module comprises a center positioning column and a stacking alignment unit with a radial synchronous telescopic mechanism, and the alignment rod of the stacking alignment unit is provided with auxiliary wheels, a flexible polishing belt and a pressure sensor; the application realizes high-precision positioning, self-adaptive adsorption and high-coaxiality stacking.

The present application relates to the technical field of machining, in particular to a clamp for machining the radial surface of a steam turbine blade by a four-axis machine tool; the driving disc is fixedly installed on the upper surface of a displacement base, and the displacement base is used for driving the driving disc to adjust the lifting; the driving disc is provided with a core expansion clamp used for internally expanding and positioning the shaft hole of the steam turbine blade. The radial driving assembly comprises a ring sleeve base, a worm drive, a plurality of rotating guide rods, a push head and a linkage rod. The ring sleeve clamp group is composed of a clamping ring, a split clamping petal and an abutment, the split clamping petal can be self-adapted to the outer periphery of the blade under the deformation of the clamping ring, and the surface of the abutment is provided with a flexible rubber pad to prevent surface damage. The bidirectional clamping structure combining internal expansion and external wrapping is used to realize high-precision positioning and stable clamping of the steam turbine blade, and the present application has the advantages of automatic adjustment, flexible wrapping and high repeat accuracy, and significantly improves the stability and processing efficiency of the four-axis machine tool processing.

This invention relates to the field of machine tool technology, and in particular to a high-precision CNC machine tool for turning and milling shaft parts, comprising a spindle mechanism, a turning mechanism, a milling mechanism, and a guide rail; the spindle mechanism includes a spindle fixture; both the turning and milling mechanisms are equipped with support mechanisms; the turning mechanism includes a turning linear module and a turning unit located at the movable end of the turning linear module; the milling mechanism includes a milling linear module and a milling unit located at the movable end of the milling linear module; the support mechanism includes a support slide, a clamping seat, and a linkage rod; one end of the support slide is slidably connected to the guide rail; one end of the clamping seat is slidably sleeved on the support slide, and the other end is equipped with a clamping jaw; one end of the linkage rod is located at the movable end of the turning linear module or the milling linear module; the other end of the linkage rod is drively connected to the clamping seat. This achieves synchronous movement of the clamping jaw with the tool position during the turning and milling process, improving machining stability and coaxiality accuracy, and is suitable for the high-precision machining requirements of milling and milling composite machining.

The invention relates to the technical field of motor assembly, in particular to a stator and rotor coaxial press fitting device and a press fitting method. The press-fitting device comprises a lifting mechanism. The press-fitting assembly is arranged at the lifting end of the lifting mechanism; a stator clamp is arranged on the press-fitting assembly; the bearing mechanism is correspondingly arranged below the press-fitting assembly and is used for mounting and bearing the rotor; and the coaxial positioning mechanism is arranged at the lifting end of the lifting mechanism and is used for penetrating through the axis of the stator to be inserted into a coaxial positioning hole in the axis of the rotor to coaxially position the stator and the rotor. The stator is clamped and fixed through the stator clamp, the coaxial positioning mechanism is driven by the lifting mechanism to penetrate through the axis of the stator to be inserted into the coaxial positioning hole in the axis of the rotor so that the stator and the rotor can be coaxial, then the pressing assembly is moved downwards through the lifting mechanism to coaxially press the stator on the rotor, and high coaxial precision is achieved.