Manipulator-free device for automatically changing tools under condition of continuous rotation of spindle for machining center

Abstract

The invention belongs to the field of numerical control machining devices, in particular to a manipulator-free device for automatically changing tools under the condition of continuous rotation of a spindle for a machining center. The device comprises the spindle, tool handles, a tool repository and a numerical control system, wherein the spindle is provided with a speed regulating function and a circumferential-position real-time detecting and regulating function; each tool handle comprises an outer tapered handle body coaxially connected with the spindle, a tool body, a bearing arranged on the tool body in a sleeving manner, a groove, an A engaging unit and a tool; the tool repository comprises a plurality of tool positions and a tool position changing unit; each tool position comprises a tool clamp for clamping the corresponding tool, a tool driving motor for driving the corresponding tool to rotate, a circumferential-position real-time detecting and regulating system, and a B engaging unit engaged with the corresponding tool. The device for automatically changing tools under the condition of continuous rotation of the spindle can achieve rapid changes between the tools on the spindle of the machining center and tools in the tool repository under the condition of continuous rotation of the spindle, accordingly, auxiliary machining time during machining of the machining center is saved, the use efficiency of a numerical-control machine tool is improved, the machining cost is reduced, and the application prospect is broad.

Description

technical field [0001] The invention belongs to the field of numerical control machining devices, in particular to a fast automatic tool changing device for a spindle of a numerical control machining center without stopping rotation. Background technique [0002] The development and application of electric spindles, high-speed lead screws and linear motors have greatly improved cutting efficiency. In order to match the high efficiency of machine tools, the high-speed automatic tool changer (ATC), one of the important components of machining centers, has also become a high-speed machining tool. Important technical content of the center. With the improvement of cutting speed and the continuous shortening of cutting time, the requirements for tool change time are also gradually increasing. The speed of tool change has become an important indicator of high-level machining centers. [0003] There are three main ways to measure the tool change speed: 1. Tool-to-tool tool change t...

AI Technical Summary

Problems solved by technology

The tool change of the machine tool is usually carried out after the spindle stops rotating, but it takes a certain amount of time from the stop of the machine tool spindle to the restart to reach the rated speed, which is actually a waste of time. The auxiliary time required for the rated speed, the present invention provides an automatic tool changer without manipulator for the spindle of the machining center, which aims to reduce the auxiliary time of processing and improve the utilization rate of the machine tool

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