Numerical control processing machine tool and processing method special for double-power unit propeller

Abstract

The invention discloses a numerical control processing machine tool and processing method special for a double-power unit propeller of a large ship. The machine tool comprises an upper and a lower power unit system; the upper power unit system comprises an upper base, a mobile column, a lead screw nut mechanism, a motor, a guiding rail and an A / C direct-drive double pendulum power unit; the lower power unit system comprises a lower base, a lead screw nut mechanism, a motor, a guiding rail, a B2 axle assembly and a second A / C direct-drive double pendulum power milling unit. The processing method comprises the following steps that the upper surface of the propeller is cut and processed firstly, and then the lower surface is cut and processed, the operation is repeated until all impellers are processed; alternatively, the upper surface of the propeller can be cut and processed until the upper surfaces of all impellers are processed, and then the lower surface is cut and processed until the lower surfaces of all impellers are processed; the processing of the whole propeller curved surfaces such as impeller pressure surface, impeller suction surface, and propeller hub and the like is completed in one time of assembly, so that the troubles of turning over and reassembling of the large propeller can be saved, thus processing efficiency is improved and repositioning error is reduced.

Description

technical field [0001] The invention relates to a special numerical control machine tool for manufacturing propellers, belongs to the technical field of mechanical processing equipment, and is especially suitable for processing integral propellers for large ships, and is also suitable for turning and milling composite processing of disk parts with rotary shafts. Background technique [0002] At present, the processing of large integral propellers basically adopts the following methods: 1. First use the gantry-type five-axis linkage CNC milling machine to mill the workpiece, and then use manual grinding to grind and repair the unprocessed surface ;Using this method to process the propeller requires multiple clamping to complete the processing of the entire propeller. The interference and collision problems between the machine tool, the tool and the propeller have not been completely solved, and the propeller with a larger diameter is difficult to turn over and clamp, and it is...

AI Technical Summary

Problems solved by technology

[0002] At present, the processing of large integral propellers basically adopts the following methods: 1. First use the gantry-type five-axis linkage CNC milling machine to mill the workpiece, and then use manual grinding to grind and repair the unprocessed surface ;Using this method to process the propeller requires multiple clamping to complete the processing of the entire propeller. The interference and collision problems between the machine tool, the tool and the propeller have not been completely solved, and the propeller with a larger diameter is difficult to turn over and clamp, and it is time-consuming. Many; re-clamping during processing will adversely affect the processing accuracy of the propeller

The current propeller processing equipment requires multiple clamping to complete the processing of the propeller, and the propeller with a larger diameter is difficult to turn over and clamp, and takes a lot of time. Re-clamping during the processing will affect the machining accuracy of the propeller

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