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On Spiral Bevel Gear CNC Manufacturing Key Technology

Author: ShiLin
Tutor: YaoBin
School: Xiamen University
Course: Machinery and electronics
Keywords: Spiral bevel gear CNC machining UG secondary development technology
CLC: TH132.41
Type: Master's thesis
Year: 2008
Downloads: 351
Quote: 3
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Abstract


Spiral bevel gear is used to pass intersect or staggered axis and has a fixed transmission than the rotary motion of the gear pair, it is divided into a spiral bevel gears and hypoid gears two. In the drive, the class gear has a large overlap coefficient, carrying capacity, smoother drive a series of advantages, it is widely used in the aerospace, automotive, machine tools and other industrial sectors, spiral bevel gear has become modern machinery industry is essential of the transmission member. The bevel gear milling machine, spiral bevel gear machining mainly use dedicated, since its formation mechanism is more complex, spiral bevel gear a long time there are more problems, such as adjust the process is complicated, longer production cycle, higher costs, and due to the constraints of the milling machine structure size and other factors, it is difficult to achieve size exceeds the processing of its specifications (such as mining and ship with large modulus, large-sized spiral bevel gear pair processing). Therefore, to solve these problems spiral bevel gear processing has very important significance. Based on the idea of ??digital manufacturing, computer technology and CNC machining technology fully applied to spiral bevel gear manufacturing, to solve the problems exist in the processing of the helical gear, no doubt for efficient, high-precision, high-flexible spiral bevel gear processing has major significance. This article is based CAD / CAM technology and multi-axis CNC technology, put forward a suitable for general-purpose multi-axis machine tool CNC machining Gleason spiral bevel gear new processing methods. Ordinary milling center will be able to complete a variety of tooth system, the processing of various specifications spiral bevel gear modulus, get rid of the special equipment for processing constraints. Is particularly suitable for small batch and special specifications and large modulus gear processing. In addition, this method is the use of self-developed software eliminates the need for tedious to calculate the adjustment of the actual processing of the spiral bevel gear, reducing operator requirements, and shorten the product development cycle, reduce input costs. So this spiral bevel gear new processing methods to bring a good economic and social benefits. Thesis, spiral bevel gear machining technology mainly includes the following aspects: 1. Introduced the basic concepts and theory of spiral bevel gears, spiral bevel gears traditional processing methods motion resolution. The structure of machining centers and CNC systems selection according to the tooth surface processing requirements. The process of the preparation of spiral bevel gear and under UG Software Tool Path Algorithm, built according to the structure of machining centers and CNC system instruction format and post-processing to generate the processing code. 4 UG NX environment secondary development of the processing part of the spiral bevel gear. Processing test, and improve the spiral bevel gear based on the common multi-axis machining process.

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CLC: > Industrial Technology > Machinery and Instrument Industry > Mechanical parts and gear > The transmission mechanism > Meshing > Gears and gearing
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