CNC Double Cutter Straight Bevel Gear Milling Machine

Abstract

The invention relates to a numerically controlled double-cutter bevel gear milling machine, comprising a bed assembly, a main drive box assembly, a cradle assembly, a tool box assembly, a workpiece box assembly and a bed saddle rotary plate assembly etc., characterized in that: the tool box assembly includes an upper tool holder seat assembly and a lower tool holder seat assembly installed on the drum of the cradle assembly, an upper tool box assembly, a lower tool box assembly, an upper and lower tool holder seat angle adjustment mechanism, The upper tool box lateral movement adjustment device and the lower tool box lateral movement adjustment device, and the workpiece box assembly is equipped with a spring damping device for eliminating the movement gap in the indexing action. The advantages are: it can enhance the overall rigidity of the gear machine tool, fully simplify the structure of the machine tool, the transmission chain of each motion axis and adjust the calculation program, reduce the manufacturing cost, and greatly improve the machining accuracy of the gear; it can not only realize the processing of large quantities of gears, but also It is suitable for single-piece or multi-variety small-batch gear processing requirements.

Description

technical field [0001] The invention belongs to the technical field of gear processing machine tools, in particular to a numerically controlled double-cutter straight bevel gear milling machine. Background technique [0002] Straight bevel gear milling machines are widely used in transmission gearboxes, internal gears of reducers and rear axle shaft gears of cars, and can also be used in general machine manufacturing industries. Its main processing feature is that the tooth line in the tooth length direction of the cut gear teeth is an arc, and the slight protrusion in the middle of the tooth surface is drum-shaped, also known as drum-shaped teeth. When the drum-shaped teeth mesh, the contact area is on the tooth surface. The middle part gradually expands with the operation and running-in, so the force is good. [0003] Straight bevel gear milling can be divided into horizontal single-station spur bevel gear milling machine and vertical double-station spur bevel gear millin...

AI Technical Summary

Problems solved by technology

The planetary mechanism and the clutch are used together to realize the tooth-splitting movement, and the gear ratio and the number of teeth of the gear pair to be processed are adjusted. In actual operation, not only the calculation is complicated, but additional manufacturing is required, which increases the processing cost and machine tool adjustment and configuration time. Therefore, it is not suitable for single-piece or small-batch gear processing

In addition, due to the use of two sets of cradle structures, the transmission chain of the transmission device is longer, and the transmission accuracy and transmission efficiency are low, which affects the processing efficiency of the machine tool

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