Five-axis linkage horizontal machining center machine tool

Abstract

The invention discloses a five-axis linkage horizontal machining center machine tool. A lathe bed comprises a horizontal lathe bed and a longitudinal lathe bed. The machine tool is characterized in that: the horizontal and longitudinal lathe beds are arrange in a T shape; a rotary table moves side to side, namely performs X-axis motion on the horizontal lathe bed; an upright post moves back and forth, namely performs Z-axis motion on the longitudinal lathe bed; a spindle head drives a spindle to move up and down, namely performs Y-axis motion on the upright post; the spindle swings around the axis of the A axis, namely performs A-axis motion; the rotary table rotates around the axis of the Y axis, namely performs B-axis motion; the X axis, Y axis, Z axis, A axis and B axis can realize five-axis linkage machining; the A-axis single spindle head has a wide pendulum angle ranging from -120 to +95 degrees; a double-exchange workbench is matched in front of the horizontal lathe bed; the right of the longitudinal lathe bed is provided with a magazine tool and a tool changing mechanical arm, and also provided with a tool measuring and workpiece measuring device; and the moving upright post has a front-and-side bidirectional variable cross section structure. The five-axis linkage horizontal machining center machine tool is suitable for machining medium and large titanium alloy aviation structures at high efficiency and high precision, and meets the requirements on high-efficiency high-precision machining equipment for the titanium alloy aviation structures of the domestic aerospace industry.

Description

technical field [0001] The invention relates to mechanical manufacturing equipment, that is, a five-axis linkage horizontal machining center machine tool for efficient and high-precision machining of complex-shaped aerospace structural parts of difficult-to-machine materials such as titanium alloys. Background technique [0002] In recent years, with the rapid development of the aerospace industry, the demand for aircraft in the market is increasing, and the performance requirements for modern aircraft are also getting higher and higher. Titanium alloys are known for their high strength, good mechanical properties and corrosion resistance Features such as strong performance are more and more widely used in modern aircraft, especially in high-performance fighter jets, the proportion of titanium alloy has exceeded 40%. Titanium alloy is a difficult-to-machine material. In actual processing, there are problems such as large cutting force, low thermal conductivity, high friction...

AI Technical Summary

Problems solved by technology

[0004] The horizontal five-axis machining center can be divided into three basic structures according to the arrangement of its two rotating axes: one is a double-swing head horizontal five-axis machining center with two rotating axes at the spindle end, this structure is to meet the requirements of titanium alloy processing For the requirement of large cutting force and large torque, the structural size of the swing head is generally designed to be relatively large, and the structure is also relatively complicated, resulting in long overhangs of the swing head and the spindle, poor rigidity, and the problem is particularly prominent when the spindle is horizontally processed; the second is two The double-swing table horizontal five-axis machining center with two rotating axes at the end of the worktable has the advantages of a relatively simple spindle structure and very good spindle rigidity, but generally the workbench cannot be designed too large and the load-bearing is small, otherwise it will swing The load is large, and the dynamic performance is greatly reduced, especially when the A-axis (rotary axis of the turntable) swings more than 90°, a large load-bearing moment will be generated on the table when cutting the workpiece; A horizontal five-axis machining center with a single swing head and a rotary table structure. The advantages and disadvantages of this structure are the compromise of the advantages and disadvantages of the first two structures. It is suitable for medium and large parts that require high rigidity and high dynamic performance at the same time. processing, while titanium alloy aerospace structural parts are mostly medium and large parts, and require high rigidity, high torque processing and high-efficiency processing, especially suitable for the five-axis linkage horizontal machining center with the third structure

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