Automatic tool-changing device

Abstract

The automatic tool-changing device is provided with: a cover (16) for partitioning a machining area (MS) and a non-machining area (CS) from each other; and opening / closing members (17A, 17B) for opening and closing opening parts of the cover (16) by being turned in conjunction with rotation of tool-changing magazines (12A, 12B). The opening / closing members (17A, 17B) have plate parts (174A, 174B)for partitioning the machining area (MS) and the non-machining area (CS) from each other at the positions of the opening parts of the cover (16). When the tool-changing magazines (12A, 12B) perform tool exchange with tool storage magazines, the plate parts (174A, 174B) are brought into a horizontal position and close the opening parts of the cover (16). When the tool-changing magazines (12A, 12B)perform tool exchange with main spindles (9A, 9B), the plate parts (174A, 174B) are changed from the horizontal position to an inclined position or to a vertical position and open the opening parts ofthe cover (16).

Description

technical field [0001] The present invention relates to an automatic tool changer for a machine tool, and more particularly, to an automatic tool changer having a tool store for accommodating a plurality of tools and a tool changer for transferring tools from the tool store to a spindle. Background technique [0002] Conventionally, when machining a workpiece with a complex shape, different machine tools were used depending on the machining content, thereby performing machining through multiple processes that required loading / unloading or clamping of the workpiece. However, in recent years, in order to increase the productivity per unit installation area of ​​machine tools in factories, so-called process intensification in which all processes are required to be performed by one loading / clamping has been increasing. In addition, not only the processing of one type of workpiece, but also the processing of multiple types of workpieces with different sizes and shapes requires in...

AI Technical Summary

Problems solved by technology

[0005] However, in order to prevent the intrusion of chips generated during machining, the swivel arm is arranged with an opening and closing member across the machining area. During the period when the opening and closing member is closed, the swiveling arm cannot be swiveled, and the pre-processing for handing over the tool to the spindle cannot be performed. action

In addition, in the case where the machining of the workpiece is completed in an extremely short time and the time until the next tool is held on the swivel arm from the tool magazine is long, a waiting time for tool replacement is generated, and the cycle time cannot be effectively shorten

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