Third-harmonic five-axis series-parallel swinging head

Abstract

The invention discloses a third-harmonic five-axis series-parallel swinging head, which comprises a fixed part; a transverse swinging part which comprises a first third harmonic all-in-one machine and a transverse swinging seat; a longitudinal swing part which comprises a second third harmonic all-in-one machine and a longitudinal follower; a main shaft piece which comprises an electric main shaft, and the electric main shaft is connected to the longitudinal follower; and wherein the first third harmonic wave all-in-one machine drives the motorized main shaft to transversely swing through the transverse swinging seat and the longitudinal follower in sequence, and meanwhile, the second third harmonic wave all-in-one machine drives the electric main shaft to longitudinally swing through the longitudinal follower, so that a tool bit on the electric main shaft moves in the space. The third-harmonic five-axis series-parallel swinging head provided by the invention is simple in structure, high in rigidity, small in size, light in weight, large in output torque, high in output precision, large in bearing capacity and low in inertia, has the high-speed machining capacity and is low in manufacturing cost and maintenance cost.

Description

technical field [0001] The invention relates to the technical field of machine tool accessories, and more specifically, the invention relates to a three-harmonic five-axis hybrid swing head. Background technique [0002] The five-axis linkage machining oscillating head is the terminal actuator in high-end machine tools. It can drive the machining tool head at the end to realize a relatively complex motion trajectory, and realize precision machining of some parts with complex surface features. At present, the five-axis linkage machining oscillating head mainly has two forms in terms of structural composition, that is, two rotating driving sources are used, and the axes of the two driving sources are orthogonal to each other. The two axes can be regarded as CA oscillating heads connected in series in structure. ; Use 3 linear drive sources, and the structure of the 3 linear drive sources can be regarded as a linkage swing head connected in parallel with each other. Among them...

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Problems solved by technology

However, the parallel mechanism also has its disadvantages as follows: First, the trajectory analysis of the parallel mechanism is complicated, the working space is small, and its theory and application are far from mature enough. In actual use, the superiority of the parallel mechanism cannot be reflected, and production cannot be popularized; Second, the parallel mechanism processing head is currently applied to experimental research. Due to improper design and insufficient rigidity of parallel structure processing heads on the market, there is no market for mechanical products; third, traditional mechanical control systems are generally designed for series mechanisms. , while the controller suitable for parallel structure processing heads is not yet fully mature

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