Thin-wall part machining method

Abstract

The invention discloses a thin-wall part machining method. The method comprises the steps that the allowance is reserved, and specifically, an annular machining allowance edge which is coaxial with a part is reserved along the maximum outer circle position of the diameter of the part; a groove is machined, and specifically, an annular groove coaxial with the part is machined in the annular machining allowance edge; and the part is clamped, specifically, an end surface which is located at the annular machining allowance edge and is perpendicular to the axis direction of the part is used as a supporting side, an outer circumferential surface of the annular machining allowance edge is used as a positioning surface, and an annular surface, perpendicular to the axis direction of the part, in the annular groove is used as a pressing surface of a pressing hook. The thin-wall part machining method avoids that a plurality of clamps are applied to the same part during machining, and reduces the time and production cost caused by a clamp combination, a support positioning and pressing manner is adopted to prevent deformation of the part, and the pressing hook of the part is hidden inside the part and does not interference with the turning and measurement on the depth direction.

Description

technical field [0001] The invention belongs to the field of aero-engine manufacturing, in particular to a processing method for thin-walled disk parts. Background technique [0002] At present, in the manufacturing process of aero-engines, the processing of many thin-walled disk parts is involved. Since the thin-walled parts can only be supported, positioned and clamped to ensure the accuracy of the parts, the traditional processing method requires the combination of multiple sets of fixtures to ensure the support, positioning and compression of the parts. In addition, the depth value of some points needs to be measured at any time during the processing process, such as the depth of the point on the web, but the end face of the disc part will interfere with the measuring tool during the measurement process, which increases the difficulty of measuring tool design. For the pressing structure, the commonly used pressing hook will also cause the problem of interference with th...

AI Technical Summary

Problems solved by technology

Since thin-walled parts can only be clamped by supporting, positioning, and clamping to ensure the accuracy of the parts, traditional processing methods require the combination of multiple sets of fixtures to ensure the support, positioning, and compression of the parts.

In addition, it is necessary to measure the depth value of some points at any time during the processing process, such as the depth of the point on the web, but there will be a problem of interference between the end face of the disc part and the measuring tool during the measurement process, which increases the difficulty of measuring tool design

For the pressing structure, the commonly used pressing hook will also cause interference with the tool or measuring tool because its pressing position is on the end surface of the part.

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