Device for automatically opening and closing flexible bellow of machine tool cover

Abstract

The present invention relates to a device for automatically opening and closing a flexible bellow of a machine tool cover. The device is composed of a machine tool cover, a flexible bellow, a front bracket, a rear bracket, guide devices, sliding devices, a driving device and a wire rope loop; the top of the machine tool cover is provided with a hoisting opening; the front end of the flexible bellow is fixedly connected to the front bracket, and the rear end thereof is fixedly connected to the rear bracket; the guide devices are respectively installed on the left and right edges of the hoistingopening; the front bracket is in sliding installed on two guide devices through the sliding devices on left and right ends of the front bracket and can be moved back and forth along the guide devices; the rear bracket is installed at the rear side edge of the hoisting opening; and the wire rope loop is installed on the top of the machine tool cover, the two sliding devices are respectively connected to the inner and outer parts of the wire rope loop, and synchronously move along the same direction under the action of the wire rope loop. The device of the present invention has the advantages of simple structure, low cost and small occupied space, so that a large-span automatic door can be driven, and the phenomenon of clamping stagnation caused by unilateral force is effectively avoided.

Description

technical field [0001] The invention belongs to the field of numerically controlled machine tools, and in particular relates to an automatic opening and closing device for an elastic bellows of a machine tool shield. Background technique [0002] In order to meet the needs of automatic processing, many CNC machine tools have hoisting ports on the top of the shield to facilitate automatic loading and unloading; at the same time, in order to prevent oil mist and cutting fluid during processing from affecting the external environment, it is also necessary to design a protective door structure for the hoisting port , in order to realize the internal sealing of the machine tool. The existing protective doors for hoisting ports mainly include sheet metal structures and elastic bellows structures. For sheet metal structures, since the protective door itself occupies a large space, it is not conducive to realizing a large loading and unloading space; while the current elastic bellow...

AI Technical Summary

Problems solved by technology

The existing protective doors for hoisting ports mainly include sheet metal structures and elastic bellows structures. For sheet metal structures, since the protective door itself occupies a large space, it is not conducive to realizing a large loading and unloading space; while the current elastic bellows The structure is usually guided by guide rails on both sides. Due to structural limitations, the drive is generally close to one side and far away from the other side. When the span of the elastic bellows is too large, it is easy to cause stagnation. If two ends of the drive are used, the synchronization of the drive will be affected. The requirements are high and the cost is high; in addition, in order to prevent the elastic bellows from turning over, the elastic bellows are usually shaped structures, which are difficult to process

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