Full CNC spiral bevel gear milling machine

Abstract

The invention relates to a full-numerical-control spiral bevel gear milling machine. The full-numerical-control spiral bevel gear milling machine comprises a lathe bed, a stand column, a tool box, a workpiece box, a rotary table transmission device, an electric system, a pneumatic system, a hydraulic system and a cooling system. The full-numerical-control spiral bevel gear milling machine is characterized in that a machine tool spindle torque motor rotor is connected with a machine tool spindle, the machine tool spindle is provided with a spindle damping mechanism, one end of a workpiece spindle is directly fastened with the machine tool spindle torque motor rotor, a workpiece spindle clamping mechanism is arranged at the other end of in a box body of the workpiece box, the workpiece spindle is provided with a workpiece spindle damping mechanism, and the rotary table transmission device comprises a worm wheel bottom sleeve, a worm wheel and worm pair, a rotary table oscillating bar mechanism, a rotary table clamping oil cylinder and a supporting base. The full-numerical-control spiral bevel gear milling machine has the advantages that a torque motor is adopted to serve as power to directly drive the machine tool spindle and the workpiece spindle, the transmission precision and the machining efficiency can be improved greatly, adjustment is convenient, and the rigidity is good; due to driving of the worm wheel and worm pair, the adjustment on the root angle of the workpiece box and the large rotation of feeding and discharging are achieved, and the rotary table oscillating bar mechanism achieves the finish machining of a small gear wheel matched with a forming-method big gear wheel and the machining of a cycloid gear.

Description

technical field [0001] The invention belongs to the technical field of bevel gear processing machine tools, in particular to a fully numerically controlled spiral bevel gear milling machine. Background technique [0002] The design of the spiral bevel gear of the automobile drive axle mainly adopts two tooth systems: tapered teeth and cycloidal teeth. Tapered gear is a traditional main processing method, which has been widely used at home and abroad for a long time. In recent years, the design calculation and processing adjustment of cycloidal gears have been greatly simplified, and the adjustment of the contact area is also simpler and faster, and the bearing capacity of cycloidal gears is also higher. In the automobile industry at home and abroad, cycloidal gears are more and more widely used. Therefore, machine tools that can process both tapered and cycloidal teeth are becoming more and more popular. [0003] Due to the principle of processing cycloidal teeth, it is r...

AI Technical Summary

Problems solved by technology

This will not only lose transmission accuracy and transmission efficiency, but also limit the movement speed of the tool spindle

Due to the limitation of the tool spindle structure of the above-mentioned gear milling machine, at present, only the intermittent indexing method can be used to process spiral shrinking bevel gears and hypoid gears, but the continuous indexing method cannot be used to process cycloidal contour bevel gears and hypoid gears gear

Although the second-generation tool spindle structure using gear transmission has appeared in the past year, due to the influence of the machining accuracy of the gear itself, transmission errors are prone to occur, which in turn affects the machining accuracy of bevel gears.

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