Device capable of elastically clamping two ends of long hole

Abstract

The invention relates to a device capable of elastically clamping two ends of a long hole. The device comprises a central spindle, wherein a left taper sleeve is arranged at one end of the central spindle, and a right taper sleeve is arranged at the other end; elastic clamping heads are arranged at correspondingly connected ends of the left taper sleeve and the right taper sleeve; a plurality of flexible open slots are evenly distributed on peripheral surfaces of the elastic clamping heads; and the ends of the left and right taper sleeves connected with the elastic clamping heads are both extended into the elastic clamping heads. The elastic clamping device provided by the invention is simple in structure and low in manufacturing cost and has the following advantages: when a locknut is screwed, the right taper sleeve can be pushed to move to cause the elastic clamping heads to extend outwardly, thus achieving the purpose of fastening and installing a workpiece; in addition, when the locknut is loosened, the elastic clamping heads shrink and the processed workpiece is convenient to remove; the workpiece is fixed effectively and reliably, and the stability of process quality is improved greatly; since the elastic clamping heads have low requirements on hole tolerance of a blank to be processed, the manufacturing cost is reduced; since the elastic clamping device provided by the invention is convenient to clamp, the work efficiency is improved greatly; and the elastic clamping device provided by the invention has a wide application scope and longer service life because of no sliding friction.

Description

technical field [0001] The invention relates to a clamping device, in particular to an elastic clamping device at both ends of a long hole, belonging to the technical field of mechanical processing. Background technique [0002] When processing long-hole parts, when it is necessary to locate the inner hole and one end surface of the workpiece, a reliable positioning method must be adopted. Positioning methods of existing technologies include: [0003] 1. The three claws back up the inner hole at one end; the positioning method described above is feasible for short cylinders, but for long cylinders, there is a risk of vibration and vibration marks, and for thin-walled inner parts, there will be clamping deformation. . [0004] 2. Make a straight mandrel, put it on the workpiece, and press the nut on the end face; the above method is feasible for rough machining, because the mandrel is positioned and belongs to clearance fit, so there will be a phenomenon that the outer circ...

AI Technical Summary

Problems solved by technology

[0005] Therefore, the above two existing positioning methods cannot meet the requirement of high tolerance when machining long-hole parts, and cannot meet the needs of machining positioning.

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