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A method for solving the grinding trajectory of the arc edge rake face of the arc head end mill

A technology of circular arc edge and rake face, which is applied in the field of numerical control grinding track solution

Active Publication Date: 2021-01-29
SOUTHWEST JIAOTONG UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] Aiming at the transition problem between the peripheral tooth rake face and the end tooth rake face in the grinding of the integral arc head end mill, the present invention proposes a method for solving the grinding trajectory of the arc edge rake face of the arc head end mill , designed to improve the stability and accuracy of tool grinding

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  • A method for solving the grinding trajectory of the arc edge rake face of the arc head end mill
  • A method for solving the grinding trajectory of the arc edge rake face of the arc head end mill
  • A method for solving the grinding trajectory of the arc edge rake face of the arc head end mill

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Embodiment Construction

[0092] The technical scheme is as follows:

[0093] 1. Definition of technological features of rake face of arc edge

[0094] In the grinding process of the rake face of the arc edge, a conical grinding wheel is used for grinding. Establish Figure 1a The workpiece coordinate system shown is O-XYZ, and the Z axis is consistent with the tool axis. In the case of determining the cutting edge curve, the rake face is constrained by width and rake angle. In this algorithm, given the edge line formula of any arc edge curve, the corresponding grinding trajectory posture of the grinding wheel can be calculated, so the edge line of the arc edge is regarded as a known curve. During the grinding process, there is a spatial relationship between the grinding wheel and the cutter body, and it is difficult to directly determine the attitude of the grinding wheel. This algorithm projects the grinding process to the instantaneous rake face of the arc edge for calculation, and constrains the ...

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Abstract

A method for solving the grinding trajectory of the rake face of the arc edge of the arc head end mill, comprising the following steps: first defining the technological characteristics of the rake face of the arc edge, including the instantaneous rake face of the arc edge in the grinding plane , depth-of-cut grinding point trajectory curve (constraining the width and rake angle of the arc rake face at the same time); secondly, calculate the grinding wheel grinding trajectory and attitude in the instantaneous rake face; finally, the actual processing of the grinding wheel is obtained through the transformation of the spatial coordinates track. The present invention conducts in-depth research on the rake face grinding method of the integral end mill, and proposes a set of rake face grinding algorithms that can satisfy smooth transition and simultaneously constrain the rake angle and width. According to the simulation and processing results, it is shown that this method can be effectively used in cutting tool processing, which proves the accuracy and feasibility of the grinding method, and provides a theoretical reference for the actual production and processing of cutting tools.

Description

technical field [0001] The invention relates to the technical field of integral end milling cutter processing, in particular to a method for solving the numerically controlled grinding trajectory of the rake face of the arc edge of the arc head end mill. Background technique [0002] The integral arc head end mill is a common high-speed cutting tool at present, which has the characteristics of low manufacturing cost and high material removal rate. When processing the arc angle of the workpiece, the arc head end mill is more rigid than the ball end mill, and the processing efficiency is higher; End mills are more resistant to chipping. [0003] The working part of the integral arc head end mill mainly includes two parts: the peripheral tooth and the end tooth, and the arc edge is an important part of the end tooth. To design the arc edge part, it is first necessary to establish the mathematical modeling of the edge curve, and then set the grinding process for the arc flank ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24B3/02
Inventor 丁国富江磊马术文黎荣张潇然梁红琴
Owner SOUTHWEST JIAOTONG UNIV