Vertical five-shaft 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] The five-axis linkage machine tool is an effective equipment for processing complex curved surfaces in space. Since the five-axis linkage machine tool has 5 motion axes, compared with the 3-axis machining center, the rigidity is low and the error accumulation is large; in order to overcome the defect of insufficient rigidity, the domestic Many five-axis linkage configurations have been designed outside, and these five-axis linkage configurations can be divided into three types: parallel connection, hybrid connection and series connection according to the structure type. [0003] Parallel five-axis linkage machine tools currently have the defects that the machine tool occupies a large area and the processing space is small; and the ball hinges of the rods are difficult to process, have low rigidity, and small rotation angles...

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.

Images