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Method for machining spatial hole by using large ellipsoid on numerical control boring-milling machine

An ellipsoid and boring and milling machine technology, which is applied in the field of mechanical processing, can solve the problems of difficult measurement and inability to process CNC gantry milling machines, etc., and achieve the effects of reducing processing failures, improving programming accuracy, and safe and reliable processes

Active Publication Date: 2010-12-22
CHINA FIRST HEAVY IND +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the processing of the space hole of the large ellipsoid is generally processed on the CNC gantry milling machine. When the width of the workpiece exceeds the width of the CNC gantry milling machine, it cannot be processed on the CNC gantry milling machine.
If it is processed on a CNC boring and milling machine, it must go through multiple clamping processes, the accuracy of the part position, the shape of the space hole, the compensation of the milling head rotation angle and the length of the tool in the processing of the universal angle milling head using the CNC boring machine. , the compensation of the tool radius, and the measurement of the spatial position of the hole after machining are all difficult

Method used

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  • Method for machining spatial hole by using large ellipsoid on numerical control boring-milling machine
  • Method for machining spatial hole by using large ellipsoid on numerical control boring-milling machine
  • Method for machining spatial hole by using large ellipsoid on numerical control boring-milling machine

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Embodiment Construction

[0033] The present invention will be further described below in conjunction with the embodiments given in the accompanying drawings. The embodiment is an example of processing an ellipsoid of a large cylinder in a petrochemical facility. The diameter of the ellipsoid of the large cylinder is 8000mm, and there are 34 space holes of different sizes distributed on it. First use siemens nx6 CAD\CAM software to analyze the shape and spatial position of the workpiece, determine the number of clamping times required to process the workpiece with the CNC boring and milling machine, the range of the hole processed by each clamping and the clamping reference; then formulate the CNC machining program for the spatial hole ;Apply VERICUT CNC machine tool simulation software to check the CNC machining program; clamp and align the parts according to the CNC machining program, and process the space holes according to the CNC machining program; use the three coordinates to detect the spatial p...

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Abstract

The invention discloses a method for machining spatial holes by using a large ellipsoid on a numerical control boring-milling machine. The method comprises the following steps of: determining the range and the clamping datum of a machined hole by applying a software analysis workpiece; compiling a numerical control machining program of the spatial hole; checking the numerical control machining program by applying simulation software; clamping and correcting according to a numerical control requirement and machining the spatial hole with an allowance; detecting the spatial position precision of the machined hole, adjusting the numerical control machining program according to a detection result and then machining the spatial hole to a required precision; and repeatedly clamping and machining a spatial hole in another range until holes on the workpiece are all machined. The invention has the advantages that multiple groups of spatial holes on the large ellipsoid can be machined by using a numerical control boring-milling machine, thereby meeting the requirement on the position precision; the maximum utilization ratio of a process is realized without being limited by the system of the numerical control boring-milling machine, and the compiling of the machining program can be finished only by updating part models and mathematical parameters; and the process is safe and reliable and has high efficiency.

Description

technical field [0001] The invention relates to the technical field of mechanical processing, in particular to a processing method for processing space holes at multiple positions on a large ellipsoidal space surface. Background technique [0002] In machined products, it is more difficult to process the space hole on the large ellipsoid. In the prior art, the processing of the space hole of the large ellipsoid is generally processed on the CNC gantry milling machine. When the width of the workpiece exceeds the width of the CNC gantry milling machine, it cannot be processed on the CNC gantry milling machine. If it is processed on a CNC boring and milling machine, it must go through multiple clamping processes, the accuracy of the part position, the shape of the space hole, the compensation of the milling head rotation angle and the length of the tool in the processing of the universal angle milling head using the CNC boring machine. , the compensation of the tool radius, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P23/02G05B19/18
Inventor 刘恩清史永利张丽霞范维河范旭昕
Owner CHINA FIRST HEAVY IND
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