Multi-section hooping tool for parts in thin-walled structures

Abstract

The invention provides a multi-section hooping tool for parts in thin-walled structures. The multi-section hooping tool comprises an outer sleeve, an inner sleeve and bolts, wherein the outer sleeve and the inner sleeve are in cup-shaped structures; the outer sleeve is sleeved on the inner sleeve and is in clearance fit therewith; the same number of bolts with the same parameters are evenly distributed on the inner sleeve along multiple axial sections; saw teeth are arranged on the end surfaces and a through slot of the outer sleeve; splines are arranged in the positions on the bolts, which are contacted with the outer sleeve; and slideways are additionally arranged on the outer sleeve. The multi-section hooping tool has the advantages that through arranging the saw teeth on the outer sleeve, arranging the splines on the bolts and applying force to stressing threads to relatively move the outer sleeve, the saw teeth can be simultaneously occluded with the splines and synchronous screwing or unscrewing is realized; and since the bolts are arranged on the multiple sections of the large inner sleeve, the multiple sections can be simultaneously and tightly hooped and the diameters of the sections can be enabled to be the same, so simultaneous hooping of the multiple sections is further realized.

Description

technical field [0001] The invention relates to a hooping tool, in particular to a multi-section hooping tool for thin-walled structural parts. Background technique [0002] In mechanical processing, many thin-walled cylindrical parts need to be rounded during processing and measurement. At present, most of the hoop tooling cannot guarantee the uniform tightening of the parts from all parts of the circumference. Even if there is a uniform tightening tool, the inner hole of the part is evenly enlarged through the cooperation of the tapered surface, and the outer diameter cannot be hooped. For the hoop circle of the outer diameter, tools such as figure 1 As shown in Fig. 1, by setting fastening bolts evenly in the radial direction on the metal ring with high rigidity, and measuring the inner diameter of the thin-walled structural parts while screwing the fastening bolts, it is determined whether the stern tube is hooped. The circle method is not only complicated to operate a...

AI Technical Summary

Problems solved by technology

At present, most of the hoop tooling cannot ensure that the parts are evenly tightened from all parts of the circumference. Even if there is a uniform tightening tool, the inner hole of the part is evenly enlarged through the cooperation of the tapered surface, and the outer diameter cannot be hooped.

For the hoop circle of the outer diameter, tools such as figure 1 As shown, by setting fastening bolts evenly in the radial direction on the metal ring with high rigidity, and measuring the inner diameter of the thin-walled structural parts while screwing the fastening bolts, it is determined whether the stern tube is hooped. The circle method is not only complicated to operate, low in efficiency, but also affected by the difference in wall thickness of the part. In the case of a large wall thickness difference of the part, measuring the roundness of the inner diameter cannot prove whether the outer diameter is rounded.

At the same time, this structure can only circle one section, and cannot circle multiple sections at the same time

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