Thin-walled circular tube inner hole honing fixture

Abstract

The invention discloses a thin-wall round tube inner hole honing fixture which comprises a fixture body, a left end cover, a right end cover, three driving hydraulic cylinders and a pipeline system, wherein the left end cover and the right end cover are connected with the two ends of a thin-wall round tube through threads, and the pipeline system injects or discharges hydraulic oil in or out of the driving hydraulic cylinders. The three symmetrically arranged driving hydraulic cylinders drive the left end cover and the right end cover to move in the fixture body, thereby realizing axial mechanical tensioning of a workpiece. Emulsified liquid at given pressure is injected in a sealed space formed by the workpiece and the fixture body to improve the compressive strength of the workpiece, so that a situation that no workpiece deforms in a processing procedure can be ensured to the full extent, a rejection rate is reduced, the processing precision is improved, and the defects of the conventional thin-wall round tube inner hole processing fixture can be overcome. The thin-wall round tube inner hole honing fixture has the characteristics of simple structure, convenience in mounting and operation, wide processing range, high adaptability, long service life, low equipment cost, low operation power consumption, etc., and can also be used for boring, turning and milling of a thin-wall round tube workpiece.

Description

technical field [0001] The invention relates to the technical field of mechanical processing auxiliary equipment, in particular to a honing jig for the inner hole of a thin-walled circular tube. Background technique [0002] Thin-walled round tubes are widely used parts in mechanical equipment, and are used in many production fields such as machinery manufacturing, chemical industry, construction, and national defense. However, the processing of thin-walled circular tube workpieces, especially thin-walled circular tube workpieces with high manufacturing precision requirements, is one of the common technical problems in mechanical processing. Thin-walled round tubes have the characteristics of thin walls, easy deformation, and great influence from external factors. In the processing of ordinary three-jaw and four-jaw chucks, the thin-walled round tube workpiece is often deformed due to the excessive force exerted by the jaws on the workpiece. However, if the clamping force i...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a thin-walled circular tube inner hole honing fixture, especially to enable the thin-walled circular tube workpiece to achieve axial tension and increase radial compressive strength during processing, which can overcome the existing problems. The problem of workpiece deformation during honing processing of circular tube thin-walled workpieces reduces the reject rate of workpiece processing and improves the processing quality and precision of workpieces

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