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A machining method for side edge milling of spiral bevel gear tooth surface

A technology of spiral bevel gear and processing method, applied in the field of CAM, can solve the problems of low efficiency of point milling and inconstant cutting speed, and achieve the effect of improving processing efficiency and stability, ensuring stability and improving surface quality

Active Publication Date: 2021-05-25
HUAIYIN INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of the above problems, the processing method of spiral bevel gear tooth flank milling proposed by the present invention effectively solves the problems of low efficiency of spot milling and inconstant cutting speed. Tool durability

Method used

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  • A machining method for side edge milling of spiral bevel gear tooth surface
  • A machining method for side edge milling of spiral bevel gear tooth surface
  • A machining method for side edge milling of spiral bevel gear tooth surface

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Embodiment

[0057] A machining method for side edge milling of spiral bevel gear tooth surface, such as figure 1 shown, including the following steps:

[0058] Step 1: The tooth surface of the gear design is uniformly discretized into a knife contact point cloud:

[0059] In the 3D CAD software, take the equivalent tool step length and tool path spacing to generate a uniform discretized tool contact point cloud on the tooth surface; and extract the tool contact coordinates of the spiral bevel gear design tooth surface (x n 、y n ,z n ) and the normal vector of the tooth surface at the knife contact point (u n , v n 、w n ).

[0060] Step 2: The extension processing of the tool path at the front cone and the back cone:

[0061] Such as image 3 As shown in , the tool path is at the front cone and the back cone of the gear, which are the two ends of the tool path, and extension processing is required. The tool path extension adopts tangential straight line extension, and the extensio...

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Abstract

The invention discloses a processing method for side edge milling of the tooth surface of a spiral bevel gear, which comprises the following steps: (1) uniformly discretizing the designed tooth surface of the gear into a point cloud of the tool contact point; (2) the tool path is at the front cone and the back cone (3) Gear design tooth surface cutter contact point cloud offset machining allowance along the tooth groove; (4) The derivation of the generatrix vector calculation formula of the taper end mill passing the tool contact; (5) The taper end mill Derivation of the calculation formula of the tool axis vector and tool position point coordinates; (6) Calculate the tool axis vector and tool position point of each tool contact on the tooth surface of the spiral bevel gear; (7) Generate the tool position file and the operation is completed. The invention ensures the uniform wear of the cutter, improves the service life of the cutter, and improves the surface quality of the tooth surface processing, as well as the processing efficiency and stability of the parts.

Description

technical field [0001] The invention belongs to the technical field of CAM, and in particular relates to a processing method for flank milling of a spiral bevel gear tooth surface. Background technique [0002] Due to the complexity of the transmission principle of the spiral bevel gear, its traditional special machine structure and processing adjustment are the most complicated among all metal cutting machine tools and the processing cycle is long. With the development of computer technology and digital control technology, the realization of high-precision electronic transmission has opened up a new way for high-precision, high-efficiency and flexible gear processing. At present, foreign gear manufacturers have adopted advanced five-axis linkage CNC machining methods to process spiral bevel gears to improve their machining accuracy. Five-axis linkage CNC machining is widely used in the processing of complex parts such as molds, turbine blades, marine propellers and aviatio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/4097
CPCG05B19/4097G05B2219/36141Y02P90/02
Inventor 张政吴海兵孙全平薛建勋许兆美陈小岗陈前亮王昆王硕
Owner HUAIYIN INSTITUTE OF TECHNOLOGY
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