The invention discloses a static pressure working platform for a hobbing machine The static pressure working platform comprises a working platform seat, a centering outer cone arranged on the working platform seat, a centering inner cone sleeve, a worm gear coaxially and fixedly connected with the centering inner cone sleeve, a working platform body fixedly arranged on the end face of the worm gear, and a worm transmission mechanism matched with the worm gear; wherein a first static pressure guide rail matched with the lower end face of the centering inner cone sleeve is arranged on the working platform body; and a second static pressure guide rail matched with the upper end face of the centering inner cone sleeve is arranged on the upper end face of the centering outer cone According to the static pressure working platform, a static pressure bearing structure is used for supporting the working platform body, a cone static pressure bearing structure is used for positioning the rotation center of the working platform body, the static pressure bearing structure has the advantages of excellent rigidity, large bearing force, and uneasiness in damage, thus the working requirement of the hobbing machine can be met, the highly repeated rotation precision of the working platform body is guaranteed, and a working platform is enabled to be free of maintenance in a long period; and according to a damping worm, the transmission gap of a worm gear and worm transmission pair is eliminated, the precision of scale division is improved, and the improvement of the processing precision of a gear is facilitated

Static pressure working platform for hobbing machine

The invention relates to a static pressure workbench for a forming gear grinding machine, which solves the defects that the workbench in the prior art is directly and mechanically contacted with supporting components so as to easily cause wear on the contact surface The static pressure workbench comprises a shell and a workbench, wherein the workbench is arranged on the shell and supported by the shell, a taper sleeve is arranged in the shell and provided with a taper hole, a tapered column is arranged in the middle of the workbench and inserted in the taper hole, a pressure plate with a flanging is fixed at the end part of the tapered column, and the taper sleeve is clamped by the flanging and the shell; and the shell is internally provided with an oil duct which is communicated with the contact surface between the shell and the workbench, the taper sleeve is internally provided with an oil duct which is communicated with the contact surfaces between the taper sleeve and the workbench, as well as the taper sleeve and the pressure sleeve, and oil films are formed on the contact surfaces The workbench and the shell are in oil film contact, and the oil films include an axial bearing oil film and a radial balance oil film, thus improving the bearing capability and radial adjustment capability, and improving the radial automatic adjustment capability of the workbench

Static pressure workbench for forming gear grinding machine

Numeric control forming gear grinding machine

The invention relates to a static pressure spindle for a rotary workbench and belongs to the field of machines. A static pressure spindle is arranged, a plurality of oil chambers are uniformly formed on the surface of the static pressure spindle, and each oil chamber is communicated with an oil pump through an oil distributor. The static pressure spindle for the workbench has a simple structure and is applicable to various large-scaled rotary workbenches; and processing cost is reduced; assembly is more convenient and the service life is longer at the same time; a stable pressure oil film is formed during rotation; bearing capability is high; and friction force is small.

Static pressure spindle for rotary workbench

A heavy type static pressure turntable with multiple types of oil pads for combined supporting comprises a turntable board, the conical fan-shaped oil pad, a turntable pedestal and the round oil pad, wherein the conical fan-shaped oil pad and the round oil pad are arranged on the turntable pedestal; the turntable board is supported by the conical fan-shaped oil pad and the round oil pad jointly and comprises a conical inclined-surface upper guide rail, a round planar upper guide rail, a workpiece clamping groove and a turntable gear ring; and the turntable pedestal comprises a conical inclined-surface lower guide rail, a round planar lower guide rail, a radial bearing and a round oil pad positioning hole Due to the design of combined supporting with the multiple oil pads, the dynamic characteristic and stability of the turntable are improved, the maximum rotation speed is improved, and the turntable has high healthy operation service performance The bearing capacity, dynamic characteristic and stability of the turntable are improved, so that the machining accuracy of the turntable is improved, and the static pressure turntable has high healthy service performance

Heavy type static pressure turntable with multiple types of oil pads for combined supporting

The invention discloses a constant flow static pressure working table for a gear shaping machine or a gear milling machine. By constant flow static pressure technology, a static pressure cavity is formed on a central spindle, and lubricating oil is fed into the static pressure cavity by a constant pressure oil pump, so that an oil film is formed between the spindle of the working table and a pedestal to keep contact surfaces between the spindle and the pedestal in a constant pressure full-liquid lubricating state; therefore, the center of the working table is positioned well, a wear phenomenon is almost avoided during movement, and the rigidity and the accuracy of the working table are greatly improved and the life of the working table is greatly prolonged; and the pedestal is provided with a dual lead worm, and adjusting pads are arranged in both axial direction and radial direction of the worm, so the working table can work under a smaller backlash condition, and the dividing accuracy of a rotary working table can be improved.

Constant flow static pressure working table for gear shaping machine or gear milling machine

The utility model discloses a constant current static pressure working table for a gear slotting machine or a gear milling machine. A static pressure cavity is arranged on a shaft core by adopting a constant current static pressure technology, and lubricating oil is input to the static pressure cavity by a constant pressure oil pump, thereby enabling a layer of oil film to be generated between the main shaft and the base of the working table so as to enable the contact surface of the main shaft and the base of the working table to be in the lubricating state of the constant pressure total liquid, and thereby, the centralized positioning of the working table is good, and the movement process hardly has abrasion so that the rigidity and the precision of the working table are greatly increased and the service life of the working table is prolonged; the base is provided with a double pitch worm and a worm wheel matched with the worm, and the axial direction and the radial direction of the worm are respectively provided with an adjustable pad, and thereby, the working table can work under the smaller lateral clearance and the accuracy of the revolving working table can be increased.

Changyu Zhu

Papers

Constant flow static pressure working table for gear shaping machine or gear milling machine

Constant current static pressure working table for gear slotting machine or gear milling machine