A fixture and a method for realizing the position tolerance of lifting lug parts by one clamping

Abstract

The invention discloses a fixture, and a method for realizing a position tolerance of a lifting lug parts through one-time clamping. The fixture, and the method for realizing the position tolerance ofthe lifting lug parts through one-time clamping are mainly used for processing the aircraft engine lifting lug parts; through the fixture, a secondary clamping error of the parts can be avoided, andthe aim of the high-precision position tolerance of the processed parts is achieved; during concrete use, elements such as low dimensional accuracy requirements of the parts and a molded surface to beprocessed by the process are selected as a positioning reference surface, a one-time clamping processing position tolerance and a baseline thereof, so that higher precision can be achieved; and during an actual production process, the parts precision can be improved, and the production cost is reduced.

Description

technical field [0001] The invention relates to a clamp and a method for realizing the position tolerance of hanging lug parts by one clamping. Background technique [0002] Traditionally, the processing method of aero-engine lifting lug parts generally adopts the method of "benchmark first, then others". First, the relevant datums that guarantee the position tolerance of the parts are processed, and then the position tolerance is guaranteed, which will inevitably cause problems due to secondary clamping. Larger error; while using a five-axis machining center for machining, although the five-axis machining center has high precision, it can also meet the requirements, but because the five-axis machining center is expensive (about 800w), the manufacturing cost will also increase, and it cannot be realized. Mass production. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies of the prior art, to provide a fixture and a meth...

AI Technical Summary

Problems solved by technology

[0002] Traditionally, the processing method of aero-engine lifting lug parts generally adopts the method of "benchmark first, then others". First, the relevant datums that guarantee the position tolerance of the parts are processed, and then the position tolerance is guaranteed, which will inevitably cause problems due to secondary clamping. Larger error; while using a five-axis machining center for machining, although the five-axis machining center has high precision, it can also meet the requirements, but because the five-axis machining center is expensive (about 800w), the manufacturing cost will also increase, and it cannot be realized. mass production

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