Automatic clamp and method for blade robot grinding and polishing

Abstract

The invention belongs to the technical field of grinding and polishing machining accessories, and particularly discloses an automatic clamp and method for grinding and polishing of a blade robot. The clamp comprises a connecting supporting module and an inclined plane fitting clamping module, the inclined plane fitting clamping module comprises a first driving unit, a clamping jaw and a positioning plate, the horizontal positioning clamping module comprises a second driving unit and an arc top block which are arranged on the connecting supporting module, and the vertical positioning clamping module comprises a vertical positioning clamping module and a clamping jaw. The vertical positioning and clamping module is arranged on the connecting and supporting module and used for pushing the blade in the direction of the vertex angle where the inclined face of the clamping jaw is located after the second driving unit drives the end face of the blade to make linear contact with the arc face of the arc ejector block, so that the inclined face of the tenon and the inclined face of the inlaid positioning block of the clamping jaw are tightly wedged. The method is realized by adopting the clamp. The clamp which is accurate in positioning, stable in clamping and capable of being adjusted and positioned in a self-adaptive mode is constructed according to the characteristics of the blade, efficiency is high, performance is good, and automatic positioning and clamping are achieved.

Description

technical field [0001] The invention belongs to the technical field of grinding and polishing processing accessories, and more specifically relates to an automatic fixture and method for blade robot grinding and polishing. Background technique [0002] In an aero-engine, gas turbine or steam turbine, the blade is the core part that completes the gas compression and expansion to generate powerful power. Its surface quality and profile accuracy have a great impact on the airflow dynamic performance and performance of the whole machine. Grinding and polishing is the last process of blade processing, which determines its final contour accuracy and surface quality, and is related to the final thrust and life of the engine. At present, the automation equipment related to blade grinding and polishing is mainly divided into two types: CNC special machine and robot grinding and polishing. Among them, the robot grinding and polishing generally uses the robot to hold the blade to grin...

AI Technical Summary

Problems solved by technology

[0003] However, in the existing technology, the grinding and polishing work of domestic robots cannot realize completely unmanned management. One of the important reasons is the lack of automatic fixtures

However, the efficiency of manual clamping is low, the stability is poor, and the precision is low, so it is impossible to realize assembly line operation.

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