Large gantry polar-coordinate digital-control milling, hobbing and grinding gear combined machine

Abstract

The invention relates to a large gantry polar-coordinate digital-control milling, hobbing and grinding gear combined machine adopting a beam both-side bearing structure by respectively hanging a milling gear headstock and a hobbing and grinding gear headstock at the left side and the right side of a beam. Compared with the prior art, the invention adopts the design concepts of polar coordinates and modularization and enables the connection sizes of lathes, bases, and the like as well as Y-direction and Z-direction feeding systems of a milling gear and a hobbing and grinding gear to have interchangeability, thereby decreasing the manufacture cost, lowering the assembly difficulty and improving the machining precision and the machining efficiency of large-module large-diameter gears. The invention integrates the machining characteristics for roughly and finely machining a milling gear, precisely spreading into a hobbing gear and molding a grinding gear with respective optimal process velocities and reasonably arranges a milling, hobbing and grinding gear headstock transmission chain capable of satisfying the requirements for molding the milling gear, spreading into the hobbing gear and molding the grinding gear.

Description

technical field [0001] The invention relates to a gear processing machine tool, especially a large-scale gantry polar coordinate CNC milling, rolling and grinding compound machine tool, which can perform high-efficiency and high-speed forming milling, precision generating hobbing and form grinding on large-module and large-diameter gears. It belongs to the field of advanced manufacturing technology. Background technique [0002] Gears are the basic parts of the machinery industry. At present, the demand for large-module and large-diameter gears in China is increasing sharply. Especially in recent years, clean and renewable new energy sources such as wind power and solar energy have been highly valued at home and abroad. According to statistics, by 2020, the Chinese market will need more than 25,000 large-capacity wind turbines, and the pitch and yaw bearings are the core components of wind turbines. 5 meters. Therefore, the upsizing of wind power generators requires large...

AI Technical Summary

Problems solved by technology

Beginning in 2005, high-speed gear milling machines began to be localized, and domestically produced by Nanjing Gongda CNC Technology Co., Ltd.; however, the milling, rolling and grinding compound machine tools and milling and internal gear machine tools currently on the market are all processed by replacing the spindle. box, time-consuming and labor-intensive, and it is difficult to guarantee the accuracy of the center of the turntable for different spindle boxes

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