Rotary table

Abstract

The invention relates to the technical field of machining centers, in particular to a rotary table. The rotary table comprises a rotary driving device, a clamp, and an annular air cylinder. The rotarydriving device comprises a rotating shaft. The clamp comprises a chuck, an elastic piece and at least two sets of clamping pieces, the clamping pieces are arranged on the chuck and can move in the radial direction of the chuck, and the elastic piece abuts against the clamping pieces. The annular air cylinder comprises an annular piston, and the rotating shaft penetrates through the inner side ofthe annular piston in the radial direction. The output end of the rotating shaft is fixedly connected with the chuck, the elastic piece pushes the at least two sets of clamping pieces to move inwardsin the radial direction of the chuck so as to lock a workpiece, and the annular piston moves in the axial direction so that the clamping pieces can be pushed to move outwards in the radial direction of the chuck so as to unlock the workpiece. Firstly, the machining efficiency of a product capable of being rotationally machined is greatly improved; secondly, the reliability and stability of the clamp clamping the workpiece are improved, and the production cost is reduced; and thirdly, the structure of the rotary table is more compact.

Description

technical field [0001] The invention relates to the technical field of machining centers, in particular to a rotary table. Background technique [0002] When the equipment is assembled and used, there are usually certain requirements for the surface roughness of the parts. Since the surface of the workpiece is relatively rough after the mold is opened, in order to make the workpiece meet the required surface roughness, it is necessary to process the surface of the workpiece through the machining center. Grinding. In the prior art, the grinding tool such as the grinding rod is generally driven by the rotary device to rotate, and the surface of the workpiece is ground by the grinding side to achieve the effect of smoothing the surface of the workpiece. However, in the prior art, the grinding tool is usually rotated alone, and the workpiece Keep still, resulting in poor grinding efficiency; [0003] In addition, the chucks for clamping workpieces in the prior art generally use...

AI Technical Summary

Problems solved by technology

[0002] When the equipment is assembled and used, there are usually certain requirements for the surface roughness of the parts. Since the surface of the workpiece is relatively rough after the mold is opened, in order to make the workpiece meet the required surface roughness, it is necessary to process the surface of the workpiece through the machining center. Grinding. In the prior art, the grinding tool such as the grinding rod is generally driven by the rotary device to rotate, and the surface of the workpiece is ground by the grinding side to achieve the effect of smoothing the surface of the workpiece. However, in the prior art, the grinding tool is usually rotated alone, and the workpiece Keep still, resulting in poor grinding efficiency;

[0003] In addition, the chucks for clamping workpieces in the prior art generally adopt pneumatic clamping. In the case of failure of the pneumatic equipment, the chuck loses the power to clamp the workpiece, and the workpiece is likely to fly out during processing, resulting in production accidents.

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