Large-scale integral type propeller molded surface numerical control grinding machine tool for ship

Abstract

The invention discloses a large-scale integral type propeller molded surface numerical control grinding machine tool for a ship. The problems that existing large-scale propeller molded surface numerical control machining equipment is expensive, and the polishing labor intensity of workers is high are mainly solved. The large-scale integral propeller numerical control grinding machine tool is mainly composed of gantry type double columns, a six-axis industrial robot, a numerical control rotating workbench and a grinding device. The grinding device is fixed to the tail end joint of the robot in a flange mode. Automatic grinding machining of an abrasive belt in the large-scale integral propeller all-blade total space region is achieved flexibly and reliably through the cooperative control over multi-joint motion of the robot, the linear motion of a sliding plate on a cross beam and the rotary motion of the workbench. The large-scale integral propeller numerical control grinding machine tool is ingenious in structure design; the mechanical stability is good in the grinding process; reachable space of automatic grinding operation is easy to expand; the universality is good; the manufacturing difficulty and production cost of a large-scale integral type propeller for the ship are greatly reduced; the large-scale integral propeller numerical control grinding machine tool has good practical and popularizing value.

Description

Technical field [0001] The invention belongs to the technical field of mechanical manufacturing, and relates to the high-efficiency precision machining of large-scale marine propeller profiles. Specifically, it relates to a large-scale integral propeller blade profile numerical control grinding machine tool. Background technique [0002] The large integral propeller is an important part of the modern large ship propulsion device. Its diameter generally exceeds 3.5m. In addition, the blade profile is a complex curved surface. The manufacturing precision and surface quality of the profile will directly affect the water performance of the large ship. Propulsion efficiency and its noise level. The integral propeller is mainly cast from bronze alloy material into an integral blank. Due to the complex factors affecting the shrinkage and deformation of the casting during the actual casting process and it is difficult to avoid casting process defects, the casting allowance has to be adde...

AI Technical Summary

Problems solved by technology

[0007] 1. Manually shoveling or grinding large-scale marine integral propellers not only requires high skills for the shoveling workers, but also the working environment is extremely harsh, and the grinding dust pollution is serious, which has a great impact on the physical and mental health of workers, resulting in low production efficiency of the integral propeller, which is difficult Meet the processing technology requirements of modern large ships for marine propellers

[0008] 2. The CNC machining of the large integral propeller profile needs to be carried out by purchasing heavy-duty double-swing head five-axis CNC gantry milling machines or special multi-axis CNC abrasive belt grinders and other expensive production equipment. Huge economic burden has been caused by the repair yard and ship users;

Images