Cutting edge gap back milling cutter numerical control machining method

Abstract

The invention discloses a cutting edge gap back milling cutter numerical control machining method, which comprises the following steps: (1) inputting a geometry and a cutter, and setting machining parameters; (2) calculating an upper cutting edge; (3) offsetting the cutting edge to obtain a final lower cutting edge; and (4) calculating a blade gap back milling cutter machining cutter path based on the lower cutting edge. The method has the advantages that: 1, the method provides the key for cutting edge gap back milling cutter numerical control machining, and ensures the normal height of the cutting edge so as to ensure the machining precision; 2, the method has simple operation, flexible parameter input and wide application range; and 3, when the cutter path is calculated, factors such as chuck interference, tool bit interference, corner deceleration, smoothening treatment on taper angles and the like are comprehensively considered, and the most reasonable cutter path is generated on the premise of safety. The invention finally realizes high-efficiency and precise cutting edge gap back milling cutter automatic numerical control machining.

Description

Technical field: [0001] The invention relates to a CAM processing method for cutting edge gap, in particular to a cutting edge gap processing method using a back milling cutter. Background technique: [0002] The trimming edge is a key part of the stamping die forming parts. In order to smoothly blank, there are generally dimensional requirements for the height of the edge. This needs to be guaranteed by processing methods. The most common method is to process the mold upside down from the reverse side, but this is not feasible for large molds. The most effective method is to use back milling cutter processing, but the current CAM software does not have a back milling cutter processing method specifically for cutting edge gap. However, the cutting edge gap program obtained by other methods often treats the cutting edge height as a geometric margin. This theoretical calculation error not only makes the operation time-consuming and laborious, but also has a large size deviati...

AI Technical Summary

Problems solved by technology

The most effective method is to use back milling cutter processing, but the current CAM software does not have a back milling cutter processing method specifically for cutting edge gap

However, the cutting edge gap program obtained by other methods often treats the cutting edge height as a geometric margin. This theoretical calculation error not only makes the operation time-consuming and laborious, but also has a large size deviation (different due to different cutting edge heights, up to a few mm), which cannot meet the production requirements

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