Method for obtaining profile of rake face of hobbing and chamfering cutter

A technology for chamfering cutters and rake faces, which is used in manufacturing tools, components with teeth, gear teeth manufacturing tools, etc., to achieve the effect of improving efficiency

Active Publication Date: 2021-12-14
CHONGQING TECH & BUSINESS UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In view of this, the present invention provides a method for obtaining the rake profile of hobbing and chamfering tools to solve the technical problem of how to obtain the rake profile of cylindrical gear hobbing and chamfering tools

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  • Method for obtaining profile of rake face of hobbing and chamfering cutter
  • Method for obtaining profile of rake face of hobbing and chamfering cutter
  • Method for obtaining profile of rake face of hobbing and chamfering cutter

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Embodiment Construction

[0047] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0048] In this embodiment, the method for obtaining the rake face profile of the hobbing and chamfering tool includes the following steps:

[0049] 1) According to the installation pose of the hobbing and chamfering tool, establish a space-generated kinematic relationship coordinate system between the hobbing-cutting and chamfering tool and the cylindrical gear, and the space-generated kinematic relationship coordinate system includes: the gear static coordinate system o m -x m the y m z m , gear moving coordinate system o g -x g the y g z g , tool static coordinate system o 1 -x 1 the y 1 z 1 and tool moving coordinate system o d -x d the y d z d ,

[0050] Gear moving coordinate system o g -x g the y g z g Fixedly connected with the cylindrical gear, at the initial position, the gear moving coordinate system o g -x g the y g z g...

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Abstract

The invention discloses a method for obtaining a profile of a rake face of a hobbing and chamfering cutter. The method comprises the following steps of 1) establishing space generating motion relation coordinate systems of the hobbing and chamfering cutter and a cylindrical gear; 2) establishing a coordinate transformation matrix among the coordinate systems; 3) representing the cylindrical gear chamfering target profile in a gear static coordinate system; 4) establishing a contact point model of the hobbing and chamfering cutter and the cylindrical gear end surface profile; 5) solving the coordinates of contact points of the rake face of the hobbing and chamfering cutter and a gear tooth profile; and (6)smoothly connecting all contact points of the rake face of the hobbing and chamfering cutter and the gear chamfering target profile to obtain a cutting edge curve of the rake face of the hobbing and chamfering cutter. According to the method for obtaining the profile of the rake face of the hobbing and chamfering cutter, the profile of the rake face of hobbing and chamfering cutter is obtained by continuously solving the contact points of the rake face of the cutter and the gear chamfering target profile on the basis of the hobbing continuous generating cutting motion principle, the method can be used for hobbing and chamfering cutter design, and the cylindrical gear tooth profile chamfering efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of hobbing cutter design, and relates to a design method of a cylindrical gear hobbing and chamfering cutter. Background technique [0002] Cylindrical gears are widely used in high-speed and heavy-duty occasions because of their compact structure, strong load-carrying capacity, and stable transmission ratio. In order to improve the transmission accuracy and prolong the service life, chamfering is a common process method. The chamfered cylindrical gear can avoid burrs caused by bumping and reduce the impact of gear noise. [0003] The currently used process types mainly include edge grinding method and edge extrusion method. The edge grinding method uses grinding to chamfer, which has problems such as low processing efficiency and difficulty in controlling the shape of the edge; the edge extrusion method uses the edge extrusion knife and the gear to be processed to perform a backlash-free meshing movement t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23F21/16
CPCB23F21/16
Inventor 何坤何晓虎
Owner CHONGQING TECH & BUSINESS UNIV
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