Industrial-robot-based abrasive belt grinding device for profiles of controllable pitch propeller and manufacturing method of abrasive belt grinding device

Abstract

The invention discloses an industrial-robot-based abrasive belt grinding device for profiles of a controllable pitch propeller and a manufacturing method of the abrasive belt grinding device and mainly solves the problems caused in numerically-controlled machine tool type manufacturing, such as high cost, instability in machining precision and low efficiency due to manual grinding, occupational hazards of polishing and the like. The device mainly comprises a six-freedom-degree industrial robot, an abrasive belt grinding mechanism and a numerical control rotary table, wherein the abrasive belt grinding mechanism which is arranged in a triangular structure is connected with an end joint of the robot through a flange; a motor achieves high-speed rotation of an abrasive belt driving wheel through a synchronous belt; a pneumatic mode drives a tension wheel to achieve abrasive belt tension; a workblank of the controllable pitch propeller is installed and clamped in the center of the rotary table; and a servo motor drives an output gear of a reduction box to be meshed with a gear ring of a slewing bearing so as to achieve continuous 360-degree rotating and indexing. The abrasive belt grinding device is ingenious in structural design and high in grinding rigidity and universality, reduces the production cost greatly and has excellent practical and promotional values.

Description

technical field [0001] The invention belongs to the field of marine machinery manufacturing, and relates to the manufacture of marine adjustable-pitch propeller profile parts. Specifically, it relates to an abrasive belt grinding device and a processing realization method for a control-pitch propeller profile using a six-degree-of-freedom industrial robot . Background technique [0002] The controllable pitch propeller is an important core part of a new type of marine propulsion power component. The surface of the part is a complex curved surface. The manufacturing accuracy and surface quality of the surface will directly affect the hydrodynamic propulsion performance of the ship. Controlled pitch propellers are usually first cast into blanks from bronze alloy materials, because the final blade profile is a complex hydrodynamic surface shape, and it is necessary to remove the material from the blank casting allowance to complete its precise surface manufacturing. At present...

AI Technical Summary

Problems solved by technology

[0007] 1. CNC machining of controllable pitch propellers needs to purchase expensive CNC machine tools such as general-purpose five-axis CNC floor-mounted boring and milling machines or special multi-axis CNC abrasive belt grinders, which poses a great burden to controllable pitch propeller manufacturers and ship users , affecting the promotion and use of adjustable pitch propeller, a new type of marine propulsion technology in China;

[0008] 2. Manual shoveling or polishing of adjustable pitch propellers has high technical requirements for workers, the labor load is heavy, the working environment is harsh, and the pollution of grinding dust is particularly serious, resulting in low production efficiency of adjustable pitch propellers, and it is difficult to ensure stable processing quality. In addition, long-term exposure to dust conditions can easily cause people to suffer from occupational diseases such as silicosis

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