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

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 thenumerical 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 andhas high efficiency.

Description

technical field [0001] The invention relates to the technical field of mechanical processing, in particular to a processing method for processing spatial holes of multiple groups of positions on a large-scale ellipsoid spatial curved surface. Background technique [0002] In machined products, the machining of space holes on large ellipsoids is difficult. In the prior art, the machining 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 be processed several times to ensure the accuracy of the position of the parts, the shape of the space hole, the compensation of the rotation angle of the milling head and the length of the tool in the machining of the universal angle milling head using the CNC boring machine. , the compensa...

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

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