Vertical five-axis linkage machine tool

Abstract

The invention discloses a vertical five-shaft linkage machine tool. The vertical five-shaft linkage machine tool comprises an overhanging-eave-type portal frame, a swing input motor (21), a swing speed reducer (22), a motorized spindle clamping head (9) and a motorized spindle (8), wherein the swing speed reducer (22) is arranged in a ram (7) and is in bolted connection with the ram (7), the swing input motor (21) is connected with the swing speed reducer (22) through a coupling, the swing speed reducer (22) is of a worm and gear structure, a worm-wheel shaft is a hollow output shaft (24), a worm is connected with the swing input motor (21) through a coupling, the rear end of the motorized spindle clamping head (9) is connected with the worm-wheel hollow output shaft (24) through an expansion sleeve (23), and the front end of the motorized spindle clamping head (9) is installed on the ram (7) through a bearing. The rigidity of the machine tool is improved by more than four times when compared with that of a traditional series machine tool, a connection gap between the swing input motor and the motorized spindle is avoided, swing precision is improved, rolled steel can be efficiently machined at the speed of 10000 turn / min, and the overall performance, including the rigidity, precision and machining speed, of the machine tool is substantially improved when compared with that of existing domestic and overseas machine tools.

Description

technical field [0001] The invention relates to a machine tool, in particular to a vertical five-axis linkage machine tool. Background technique [0002] Five-axis linkage machine tool is an effective equipment for processing complex curved surfaces in space. Since five-axis linkage machine tool has 5 motion axes, compared with a 3-axis machining center, it has low rigidity and large error accumulation; in order to overcome the shortcomings of insufficient rigidity, domestic Numerous five-axis linkage configurations have been designed outside. These five-axis linkage configurations can be divided into three types according to the structure type: parallel connection, hybrid connection and series connection. [0003] Parallel five-axis linkage machine tools, at present, generally have the defects that the machine tool occupies a large area and the processing space is small; and the ball hinge of the rod is difficult to process, has low rigidity, and has a small rotation angle....

AI Technical Summary

Problems solved by technology

The hybrid machine tool with parallel cutter heads of this structure, although the machine tool has high rigidity, the cutting motion of the tool must be realized by a pair of bevel gears. Due to the limitation of the characteristics of bevel gear transmission, it is difficult to obtain a cutting speed of more than 10,000 rpm

In short, the comprehensive performance of the existing five-axis linkage machine tool structure in terms of machine tool rigidity, machining accuracy, work space, cutting speed, and manufacturing cost has not yet fully met the metal cutting requirements.

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