11results 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 invention relates to the technical field of drill bit welding, and discloses a drill bit production welding device which comprises a base, a fixing assembly is installed on the upper end face of the base and comprises a plurality of external expansion plates, and a cylindrical base body is fixed to the outer sides of the external expansion plates; according to the device, by arranging the clamping mechanism and the adjusting assembly, coaxial positioning and equal-distance control over all the drill bit parts and the base body are achieved, and the multiple drill bit parts can be synchronously adjusted and positioned under the action of the clamping assembly through cooperative cooperation of an adjusting rotating shaft, a first driving gear and a plurality of threaded rods; when the first driving gear rotates, the threaded rods drive the clamping assemblies to be evenly close to the base body, and under the effect of the coaxial supporting barrel, it is guaranteed that the drill bit parts and the base body are always kept in a coaxial state; the drill bit parts are clamped through the evenly-arranged clamping pieces, the distance between each drill bit part and the axis of the base body can be accurately controlled, the deviation problem caused by step-by-step operation is solved, and therefore the coaxial precision in the welding process is greatly improved.

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.

A large-size thin-wall workpiece machining tool clamp relates to the technical field of tool clamps and comprises a mandrel base, a supporting wheel, a gland, a gland nut and a supporting wheel nut. A connecting shaft used for being connected with a machine tool rotating table is arranged at the lower end of the mandrel base, the mandrel base is of a step shaft structure and comprises a supporting cylinder used for coaxially supporting the inner wall of a thin-wall workpiece and a supporting step face used for axially positioning the thin-wall workpiece, and a mandrel is arranged at the top of the mandrel base. A shaft body at the top of the mandrel is coaxially and detachably connected with a supporting wheel used for coaxially supporting the inner wall of the thin-wall workpiece, and a gland used for axially pressing the thin-wall workpiece is installed at the position, corresponding to the upper portion of the supporting wheel, of the mandrel. The device is simple in structure, easy to assemble, low in manufacturing difficulty and convenient to use and operate; machining of the outer circle face, the mounting edge and the mounting hole of the thin-wall workpiece can be achieved through one-time clamping, the clamping frequency is reduced, the machining efficiency is improved, and the machining quality is guaranteed.

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.

The utility model discloses a control cover forming mold which comprises a front mold assembly and a rear mold assembly, the front mold assembly comprises a front mold plate and a front mold, the front mold plate is provided with a sprue gate, the front mold is arranged on the front mold plate, and the front mold is provided with a concave part; the rear mold assembly comprises a rear mold plate and a rear mold, the rear mold plate is located on the side, close to the front mold, of the front mold plate, the rear mold plate is arranged in a sliding mode relative to the front mold plate, the rear mold is arranged on the rear mold plate and provided with a protruding part, when the rear mold plate and the front mold plate are close to each other, the rear mold makes contact with the front mold, and when the rear mold plate and the front mold plate are close to each other, the protruding part is arranged on the rear mold plate. The convex part is embedded into the concave part and is matched with the concave part to form a cavity for molding the control cover, and the sprue gate is connected with the cavity; and the core pulling assembly comprises a first core pulling rod, the first core pulling rod is arranged on the first side of the front mold plate in a sliding mode, and the first core pulling rod slides to be arranged on the front mold in a penetrating mode and penetrate through the rear mold to stretch into the cavity on the other side of the front mold plate.

The utility model discloses a tube plate welding rotating gun frame which comprises a base plate, a main shaft, a rotating assembly and a rotating frame. The base plate is of a structure used for installing the rotating bearing and the main shaft, and a bearing seat is arranged on the base plate; the rotating assembly is mounted on the base plate; a bearing hole of a rotating plate of the rotating stand is matched with a bearing of the main shaft, a seat plate is arranged below the rotating stand, and a shaft sleeve seat is arranged on the seat plate; the upper part of the main shaft is locked in the bearing seat, and the middle lower part of the main shaft is matched with the shaft sleeve seat through the shaft sleeve, is in interference fit with the rotating stand and is in movable fit with the main shaft; and the coaxiality of the upper end and the lower end of the rotating stand and the main shaft is jointly ensured by the bearing seat and the shaft sleeve seat. According to the scheme, the rotating frame can rotate freely and has good radial positioning, it is guaranteed that the coaxial precision of the welding gun is high in the process that the welding gun rotates around the main shaft, assistance is provided for precise welding, welding parameters such as the welding speed, the arc length and the angle are more stable, the welding quality is improved, and the operation labor intensity is reduced.

The utility model relates to a cam box base body structure of a cam jacquard machine, which comprises a wall plate and a cover plate assembled on the wall plate, and is characterized in that the wall plate is assembled and connected with the cover plate through a semi-closed box body structure formed along one side of the wall plate in a protruding manner; the part, covered by the semi-closed box body structure, of the wallboard forms the bottom face of the semi-closed box body structure, a first bearing hole is formed in the bottom face, the top face of the semi-closed box body structure is configured to be a cover plate mounting face, and a cover plate mounting hole is formed in the cover plate mounting face; the bottom surface of the semi-closed box body structure is opposite to and parallel to the mounting surface of the cover plate; the first bearing hole formed in the bottom face and the cover plate installation hole formed in the cover plate installation face are coaxial holes formed through one-time clamping and machining. The stability of the cam box structure of the cam jacquard machine can be obviously improved by improving the coaxiality between the cover plate and the wall plate.

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 present invention provides a mounting frame for a coaxial optical system and a coaxial optical system having the same. The mounting frame comprises: a base body, mounted on an optical platform of the coaxial optical system, the base body having a positioning hole for mounting a positioning rod; a clamping assembly, arranged in the positioning hole, for positioning and fixing the positioning rod; and a mounting plate, arranged in the base body, the mounting plate having a mounting hole for mounting an optical element. The clamping assembly positions, clamps and fixes the positioning rod to ensure that the positional relationship between the positioning rod and the mounting frame is unique. In addition, multiple mounting frames can be connected and positioned by positioning rods to ensure collimation and improve the coaxial accuracy of the mounting frame, so as to improve the installation accuracy of the coaxial optical system, thereby improving the calibration accuracy of the optical path and improving the stability of the optical path, and facilitating the calibration operation of the coaxial optical system.

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.