Precise wire-cutting method for special-shaped die holes with profile inserts

Abstract

The invention relates to a precise wire cutting method for a special-shaped die hole with a profiled surface insert, which is characterized in that: the width of the die hole is ≥ 6 mm; Wire hole centering, wire cutting die hole; die hole width < 6mm, directly make a process hole when CNC machining the profile, drill the die hole and thread the wire hole, straighten according to the straight edge, center according to the process hole, pass Size wire cutting die hole; the die hole width is less than 6mm, and there is no straightening surface. When CNC machining the profile, directly make two process holes, drill the die hole and thread the wire hole, straighten according to the two holes, and align the center according to one of the holes , Over-size wire cutting die hole. It classifies the special-shaped die holes of inserts according to whether the hole width is ≥ 6mm and whether there is a straightened surface, and makes threading holes and process holes through numerical control, and directly or indirectly uses the automatic centering function of the holes to realize the inserts with shaped surfaces Precise wire cutting of special-shaped die holes.

Description

technical field [0001] The invention relates to a precise wire-cutting method for a special-shaped concave die hole of an insert with a profile, and belongs to the technical field of wire-cutting processing. Background technique [0002] Ordinary wire cutting machine tools have the function of automatic centering and alignment of the hole. The hole needs to be finished first. When the hole width is ≥ 6mm, the circular threading hole can be finished first, and then the function of automatic centering of the hole can be used for alignment to complete the die of the part. For wire cutting of holes, when the inner diameter or width of the hole is less than 6mm, the inner circular hole cannot be finished, so the automatic centering function of the hole cannot be used directly, and the insert has a profile, and the pin hole cannot be used to correct the oversize. Workers cut the molybdenum wire according to the line of sight of the straight edge of the insert to align the base sur...

AI Technical Summary

Problems solved by technology

[0002] Ordinary wire cutting machine tools have the function of automatic centering and alignment of the hole. The hole needs to be finished first. When the hole width is ≥ 6mm, the circular threading hole can be finished first, and then the function of automatic centering of the hole can be used for alignment to complete the die of the part. For wire cutting of holes, when the inner diameter or width of the hole is less than 6mm, the inner circular hole cannot be finished, so the automatic centering function of the hole cannot be used directly, and the insert has a profile, and the pin hole cannot be used to correct the oversize. Workers cut the molybdenum wire according to the straight side of the insert and discharge to align the base surface of the insert, and the alignment error is about 0.1mm

Images