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

A compound machine tool and polar coordinate technology, applied in gear cutting machines, large fixed members, gear teeth, etc., can solve the problems of difficulty in ensuring the accuracy of the turntable center, time-consuming and labor-intensive problems, and achieve the effects of stable machining accuracy, reduced manufacturing costs and difficulty in assembly

Active Publication Date: 2010-05-05
NANJING UNIV OF TECH
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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 inte...

Method used

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

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Embodiment Construction

[0037] Below in conjunction with accompanying drawing, technical content of the present invention is described:

[0038] Such as figure 1 , figure 2 , a large-scale gantry polar coordinate CNC milling, rolling and grinding compound machine tool, comprising a bed 1, a base 2 located on both sides of the bed 1, a column 3 placed on the upper part of the base 2, a beam 4 arranged on the column 3, the bed 1 is equipped with a rack 12 and a double servo drive system 13 for X-direction feed of the turntable, and a CNC static pressure turntable 11 is provided on the double-servo drive system 13 for X-direction feed of the turntable; The hobbing tooth horizontal carriage, the milling tooth horizontal carriage and the hobbing tooth horizontal carriage are respectively equipped with a milling tooth vertical carriage and a hobbing tooth vertical carriage, and the milling tooth horizontal carriage is connected to the milling tooth Y-direction feed system 6 The ball screw pair of the ho...

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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...

Claims

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Application Information

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IPC IPC(8): B23P23/00B23F23/00B23F23/08B23Q1/26B23Q5/04
Inventor 黄筱调于春建洪荣晶方成刚
Owner NANJING UNIV OF TECH
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