A vertical rail type turning and milling compound machine tool

Abstract

The invention relates to a vertical rail type turning and milling compound machine tool. The machine tool comprises a machine tool base, a main shaft transmission device, an oil pressure tail base, aZ-axle feeding device and an X-axle feeding device; the X-axle feeding device is fixedly arranged above a Z-axle slide table; a servo power machine shell is arranged on the X-axle feeding device, andis provided with a servo power machine head capable of moving in a Y direction; a tip is supported in a tip base through a composite bearing and double rows of conical roller bearings; a labyrinth sealing cover is arranged at one end of the tip, and forms a dynamic labyrinth sealing connection with the tip base; and a tail sealing cover is arranged at the other end of the tip, and is fixed with the tip base. The machine tool not only can realize turning and milling compound machining, but also can realize low weight of guide rails, and in particular, effectively improves the operability in theY direction; and a rotary tip module is supported by using the composite bearing, so that the structure is simple and compact, radial and axial loads can be borne at the same time, and the dynamic stability of the tip and the machining precision of the machine tool are greatly improved.

Description

technical field [0001] The invention belongs to the technical field of numerical control machine tools, and in particular relates to a vertical rail type turning and milling compound machine tool. Background technique [0002] The appearance of CNC lathes is similar to that of ordinary lathes, that is, it is composed of bed, spindle box, tool holder, feed, cooling system and lubrication system, etc., but the transmission system of CNC lathes has a qualitative leap from ordinary lathes. There are feed boxes and exchange gear racks, while CNC lathes directly use servo motors to drive through ball screws to achieve feed. [0003] Inventor Jiang Muyong has three prior applications, namely: a CNC machine tool with double spindles and turrets (CN205702457U), a vertical rail CNC lathe (CN202963464U), and a vertical rail CNC lathe (CN205816826U). Further improvements are made on the basis of the above contents. [0004] CNC lathes are generally equipped with a single tool holder, ...

AI Technical Summary

Problems solved by technology

[0004] CNC lathes are generally equipped with a single tool post, such as a four-station horizontal indexing tool post or a multi-station turret-type automatic indexing tool post. However, its function is single, and it is mostly used for processing disc and shaft parts; Due to its layered structure, the system is too heavy, and it needs to overcome its huge inertia when moving in the horizontal Y direction, resulting in poor controllability

[0005] When the rotary top is processed on the machine tool, especially for the processing of shaft parts, due to high-speed rotation, large radial force and axial force will be generated at the same time, which often causes the top vibration and seriously affects the machining accuracy of the machine tool. In the prior art, it is To improve the rotation stability of the slewing top, it is often supported by multiple bearings, which makes the structure of the top assembly complex, the size increases, and the cost increases

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