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Method for realizing optimal finishing amount of formed electrode loss based on point cloud data processing

A technology for forming electrodes and point cloud data, which is applied in electrode manufacturing, measuring devices, electric processing equipment, etc., to achieve the effects of increasing the utilization rate of forming electrodes, improving processing efficiency, and ensuring trimming quality

Active Publication Date: 2020-04-10
SHANGHAI JIAO TONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention aims at the problem of heavily relying on subjective experience to determine the trimming amount of the molding electrode in the prior loss trimming of the molding electrode, and proposes a method for realizing the optimal trimming amount of the molding electrode loss based on point cloud data processing, which can accurately determine the amount of trimming in the special EDM machining Optimal trimming amount for tool electrode loss, improving processing efficiency and ensuring trimming quality

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  • Method for realizing optimal finishing amount of formed electrode loss based on point cloud data processing
  • Method for realizing optimal finishing amount of formed electrode loss based on point cloud data processing
  • Method for realizing optimal finishing amount of formed electrode loss based on point cloud data processing

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Embodiment Construction

[0024] The isosceles trapezoidal cross-section forming electrode physical map and cross-sectional geometric dimensions used in this embodiment are as follows figure 2 As shown, specifically: a wedge-shaped structure, the width of the electrode, that is, the length of the wedge-shaped surface is 7mm, the wedge-shaped angle is 20°, and the thickness of the narrow side is 0.8mm.

[0025] Such as figure 1 As shown, this embodiment involves a method for realizing the optimal trimming amount of forming electrode loss based on point cloud data processing, including the following steps:

[0026] Step 1) Measurement trajectory planning: use a laser three-coordinate measuring machine to measure the loss of the forming electrode, determine the coordinate range of the plane to be measured in the workpiece coordinate system in advance, and combine the geometric space motion structure of the laser three-coordinate measuring machine to derive the to-be The coordinates of the measuring plan...

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Abstract

The invention discloses a method for realizing the optimal finishing amount of the formed electrode loss based on point cloud data processing. The formed electrode loss situation is measured through alaser three-coordinate measuring machine, point cloud data are obtained, and the point cloud data are transformed from a machine tool coordinate system to a workpiece coordinate system and denoised;and then approximate plane fitting is conducted through a least square method to obtain the optimal finishing amount, and by adopting a reverse-forming finishing technology and combining the optimal finishing amount, a dissipated formed electrode is finished through a reverse copying block. The optimal finishing amount of the tool electrode loss in electric spark non-traditional machining can be accurately determined, the machining efficiency is improved, and the finishing quality is ensured.

Description

technical field [0001] The invention relates to a technology in the field of electrode processing, in particular to a method for realizing the optimal trimming amount of forming electrode loss based on point cloud data processing. Background technique [0002] In the process of EDM, the formed electrode inevitably suffers from wear and tear. At present, the trimming of the loss of the formed electrode is generally realized by the reverse copy block technology, but this technology is greatly affected by the operator and the consistency is poor. If the trimming amount is less than the loss amount, the trimming effect of the worn part of the forming electrode will be unsatisfactory, and then It affects the processing accuracy of the workpiece; if the trimming amount is greater than the loss amount, it will lead to too long trimming time, which will affect the processing efficiency and reduce the usage rate of the forming electrode. Contents of the invention [0003] The pres...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23H1/04B23P6/00G01B11/24
CPCB23H1/04B23P6/00G01B11/24
Inventor 奚学程闫晓燊朱思萌赵万生褚皓宇张瑞雪
Owner SHANGHAI JIAO TONG UNIV
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