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A machining method of spiral bevel gear based on general four-axis CNC machine tool and ball end milling cutter

A technology of spiral bevel gear and ball end milling cutter, applied in the direction of belt/chain/gear, gear teeth, mechanical equipment, etc., can solve the problems of high purchase cost, difficult preparation of milling cutter disc, high processing cost, and achieve production preparation cost. Low, shortened clamping and tool setting time, good rigidity effect

Active Publication Date: 2020-05-19
YANGTZE UNIVERSITY
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  • Application Information

AI Technical Summary

Problems solved by technology

Spiral bevel gears are generally processed on special machine tools with milling cutters. This method has high production efficiency in mass production, but when processing large diameter and single piece small batch spiral bevel gears, due to the purchase cost of special machine tools Higher and difficult preparation of milling cutter discs, resulting in higher machining costs

Method used

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  • A machining method of spiral bevel gear based on general four-axis CNC machine tool and ball end milling cutter
  • A machining method of spiral bevel gear based on general four-axis CNC machine tool and ball end milling cutter
  • A machining method of spiral bevel gear based on general four-axis CNC machine tool and ball end milling cutter

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Experimental program
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Embodiment Construction

[0044] The spiral bevel gear processing method based on a general-purpose four-axis numerical control machine tool and a ball end milling cutter comprises the following steps:

[0045] Spiral bevel gears are divided into Gleason-made and Oerlikon-made according to the shape of the tooth line, and the Gleason-made spiral bevel gear will be described as an example. When the milling cutter is processing the gear, the straight blade cuts out the conjugate tooth surface, and the rounded corner of the cutter cuts out the transition surface. According to the geometric parameters of the milling cutter, the mathematical equation of the straight cutting edge and the rounded corner of the cutter can be determined, and then the parameters can be adjusted according to the machine tool. The mathematical model of the conjugate tooth surface and the transition surface can be deduced, and then the discrete points of the tooth surface can be solved. In order to make the discrete points on the too...

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Abstract

The invention relates to a spiral bevel gear machining method, in particular to a spiral bevel gear machining method based on a universal four-axis numerical control machine tool and a ball-end milling cutter. By steps of tooth surface discrete point calculation, gear solid modeling, ball-end milling cutter diameter determination, cutter path creation, tooth surface machining parameter calculationand tooth surface machining process, various spiral bevel gears can be machined on a universal four-axis numerical control miller without purchasing of expensive special machine tools or milling cutter discs. Compared with gear blend surfaces machined by milling cutter discs, the blend surface machined by the ball-end milling cutter has larger radius of curvature, and bending fatigue strength ofthe gears can be improved. Compared with the one-side cantilever arrangement mode when the gears are machined by the milling cutter discs, the two-end support mode of a chuck and a tailstock tip has better rigidity, deformation caused by cutting force can be reduced, and accordingly, machining accuracy of tooth surfaces is improved.

Description

technical field [0001] The invention relates to a spiral bevel gear processing method, in particular to a spiral bevel gear processing method based on a general-purpose four-axis numerical control machine tool and a ball end milling cutter. Background technique [0002] Spiral bevel gears are transmission components used to transmit motion between intersecting shafts or intersecting shafts, and have the advantages of large coincidence, stable transmission, and strong bearing capacity. Spiral bevel gears are generally processed on special machine tools with milling cutters. This method has high production efficiency in mass production, but when processing large diameter and small batches of single-piece spiral bevel gears, the purchase cost of special machine tools Higher and difficult to prepare the milling cutter disc, resulting in higher processing costs. Contents of the invention [0003] The object of the present invention is: according to the milling method of space ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23F9/08
CPCB23F9/08
Inventor 魏巍
Owner YANGTZE UNIVERSITY
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