High-speed turn-milling combined machining power electric main shaft device and manufacturing method thereof

Abstract

The invention relates to a high-speed turn-milling combined machining power electric main shaft device and a manufacturing method thereof. The main shaft device is arranged on a high-speed five-shaft turn-milling combined machining machine tool, and assorted electric, hydraulic and control parts are correspondingly combined with a system on the machine tool. The high-speed turn-milling combined machining power electric main shaft device is characterized in that the inside of a main shaft box is concentrically provided with a water jacket, an in-built motor and a main shaft from the outside to the inside; the inner bore of the main shaft is provided with a broach mechanism; the front end of the broach mechanism is provided with a broach case, and the rear end thereof is connected with a connecting sleeve and a broach detaching mechanism; a front bearing and a rear bearing which are arranged on the outer walls of both ends of the main shaft respectively form a bearing variable pre-tightening structure; a three-fluted disc mechanism is arranged on the periphery of the broach case; a broach oil cylinder is formed by a sleeve; an unloading oil cylinder, the broach detaching oil cylinder and a broach forging oil cylinder which are arranged at the rear end of the main shaft are arranged on the main shaft box through a rear end cover and a big flange; and an oil inlet and an oil outlet are respectively connected with the hydraulic system of the machine tool. The invention can realize the combined machining, such as high-rigidity lathe machining, high-rotating speed milling and the like.

Description

technical field [0001] The present invention relates to mechanical manufacturing equipment. Background technique [0002] The turning and milling compound machining center has the functions of turning, milling, drilling, boring, tapping, deep hole processing, turning and milling internal and external threads, etc. These functions are mainly realized by the turning and milling compound machining power spindle device, so it is required that such devices can not only install In addition to milling with rotating tools, turning tools can also be installed to realize combined turning and milling. As the core technology of the turning-milling compound machining center, the power electric spindle technology of the turning-milling compound machining center has been monopolized by foreign countries, which greatly increases the cost of equipment introduction and equipment maintenance for domestic manufacturers, and restricts the rapid development of my country's automobile, military, a...

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Problems solved by technology

As the core technology of the turning-milling compound machining center, the power electric spindle technology of the turning-milling compound machining center has been monopolized by foreign countries, which greatly increases the cost of equipment introduction and equipment maintenance for domestic manufacturers, and restricts the rapid development of my country's automobile, military, aviation, energy and other industries. develop

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