Mounting system special for accurately machining two supporting holes of elastic tube assembly and method

Abstract

The invention relates to a mounting system special for accurately machining two supporting holes of an elastic tube assembly and a method. The mounting system special for accurately machining two supporting holes of an elastic tube assembly comprises a workpiece initial mounting mechanism, a rapid searching mechanism and a connecting and equalizing mechanism, wherein the workpiece initial mounting mechanism comprises an initial searching element, a supporting plate and a clamping mechanism and clamps the elastic tube assembly arranged on the searching element; the rapid searching mechanism comprises a searcher, a searching element, a searching characteristic surface matched with the searcher on the workpiece initial mounting mechanism and a pneumatic clamping mechanism, the workpiece initial mounting mechanism is matched with the searcher through the searching characteristic surface and the searching element thereon so as to rapidly and accurately position the whole workpiece/clamp on a machine tool and machine large holes and outer conical surfaces; and then the initial mounting mechanism is taken down to be remounted on the searcher again to machine small holes. By mounting a workpiece outside the machine tool, the invention can greatly improve the mounting efficiency and the reliability of the workpiece and decrease the coaxiality error from 0.04 to 0.02.

Description

technical field [0001] The invention belongs to the field of spinning spindle parts, and in particular relates to a special installation system and method for precise machining of two supporting holes of an elastic tube assembly. Background technique [0002] The elastic tube component is the key component of the spinning spindle, which consists of a metal elastic tube with a spiral groove and an upper bearing seat. Its structure is as follows: figure 1 shown. The combination method of elastic tube components commonly used by domestic spindle manufacturers is: the elastic tube is formed by interference fit between the press-fit outer circle at the upper end and the press-fit hole of the upper bearing seat. This method of separately processing the parts and then assembling, due to the small rigidity of the elastic tube of the spindle and the spinning bearing seat and its machining error, as well as the interference fit of the inner and outer cylindrical surfaces, usually cau...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a special installation system and method for the precision machining of the two supporting holes of the elastic tube assembly, so as to solve the defects in the prior art in realizing the precision machining of the elastic tube assembly with the structure of "long distance and short holes"

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