Blade intelligent grinding flexible manufacturing system

Abstract

The invention discloses a blade intelligent grinding flexible manufacturing system and mainly solves the problems of traditional blade single-machine grinding, such as high manual feeding and discharging labor intensity, wrong inspection and incomplete and difficult-to-trace precision detection performance indexes. The system comprises a gantry, a laser measurement device, a numerical control grinder, a workpiece feeding and conveying conveyor belt mechanism, a central computer and a transparent protective fence. Blades are clamped and transported through the gantry, blade precision information is acquired through laser scanning measurement, a grinding procedure is automatically generated, and machining and subsequent intelligent processing are realized in a DNC mode. The blade intelligent grinding flexible manufacturing system is skillful in structural design, complete in detection functions, strong in universality, realizes precision data whole-process tracing in the blade manufacturing process, avoids detection leakage and wrong detection problems, greatly improves blade massive manufacture quality, realizes unmanned intelligent manufacture on complicated curved surface components, such as blades, effectively reduces the massive manufacture cost of blade production, and has great practical and popularization values.

Description

technical field [0001] The invention belongs to the field of mechanical manufacturing and its automation, and relates to a closed-loop intelligent grinding technology with integrated automatic measurement. Specifically, it relates to a non-contact, fast and high-precision automatic detection and grinding process of a curved blade profile. Intelligent manufacturing system and its control method. Background technique [0002] Blades are the key core parts of power energy devices such as aero-engines, steam turbines, and gas turbines. There are thousands of blades at all levels that constitute these single power energy devices. Although various multi-axis linkage CNC sanders have been developed at home and abroad. Belt grinding machines and CNC grinding wheel grinding machines are used for the grinding of blade profiles, for example, the CNC abrasive belt grinding machine of German IBS company, the seven-axis linkage CNC abrasive belt grinding and polishing machine tool invente...

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Problems solved by technology

[0002] Blades are the key core parts of power energy devices such as aero-engines, steam turbines, and gas turbines. There are thousands of blades at all levels that constitute these single power energy devices. Although various multi-axis linkage CNC sanders have been developed at home and abroad. Belt grinding machines and CNC grinding wheel grinding machines are used for the grinding of blade profiles, for example, the CNC abrasive belt grinding machine of German IBS company, the seven-axis linkage CNC abrasive belt grinding and polishing machine tool invented by Huang Zhi from the University of Electronic Science and Technology of China (patent application number: 201320826632.4) and so on, but limited by the automation level and the particularity of different blade sizes and weights, relevant units at home and abroad mainly rely on manual loading and unloading of blade processing, and blade detection also mainly relies on manual transfer to traditional three-coordinate Testing on the measuring machine is time-consuming and labor-intensive. There are many intermediate links, which are easy to confuse and make mistakes. The efficiency of the whole process is relatively low, which affects the production efficiency of the enterprise. How to efficiently manufacture these blades on the basis of existing CNC grinding equipment has become a constraint for the development of the industry. bottleneck problem

[0003] In addition, for the detection of blade surface machining errors, three-coordinate measuring machines are generally used for measurement. Although the three-coordinate measuring head has better accuracy in measuring the profile of the blade body, it is not suitable for the blade inlet and exhaust edges, especially for aero-engine compressor blades and gas turbines. For the extremely thin intake and exhaust edges of compressors, the ball-point stylus of the three-coordinate probe cannot complete the corresponding detection of such exhaust edges due to its own diameter limitation, and still use the naked eye to carry out the backward light leakage manual Inspection and manual recording and calculation cannot realize the complete data process recording of batch blade manufacturing precision information, and there are many mistakes in the process, and it is impossible to realize the comprehensive monitoring of blade grinding quality, which will easily lead to the flow of damaged and problematic blades Subsequent assembly processes cause potential quality issues

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