Machining method for inclined micro hole in outer circle and machining device

Abstract

The invention discloses a machining method for inclined micro hole in an outer circle and a machining device. The method comprises the steps that a replaceable drill bushing is taken down, and the bottom surface of a tool base is placed on the upper end surface of a sizing block and is pressed; a workpiece is installed in a step through hole of the tool base of the assembled machining device, the top of the workpiece makes contact with a locking nut to be limited, a pressing screw abuts against the bottom of the workpiece, and the pressing screw and an adjusting screw are finely adjusted till the inclined micro hole is aligned with a guide positioning hole; positioning is carried out through the guide positioning hole, and rapid movement to a cutting point is realized; after cutting, the milling depth is about 1mm; a micro drill bit is replaced, the replaceable drill bushing is installed, the inclined micro hole is drilled, and the inclined micro hole is connected with a step through hole; the top of the workpiece makes contact with the locking nut to be limited, the pressing screw and the step through hole are in close fit to abut against the bottom of the workpiece, the pressing screw and the adjusting screw are finely adjusted to align to the inclined micro hole, the position size L of the inclined micro hole is roughly determined, and the workpiece is pressed; and the workpiece cannot shake along with a cutting tool, the cutting position is easy to control, and the tool is not prone to being broken.

Description

technical field [0001] The invention relates to a processing method and a processing device for an upwardly inclined tiny hole on an outer circle, belonging to the technical field of part processing. Background technique [0002] When processing oblique tiny holes on parts, parts such as figure 1 As shown, the existing processing methods mainly include the following three types: 1. Use a universal dividing head to clamp and align the outer circle in the coordinate milling, coordinate boring or three-axis vertical machining center; 2. Use 3+ 2 or five-axis vertical machining center clamping to find out the outer circle before processing; 3, processing with a drilling mold with a single drill sleeve. [0003] Since the entry and exit positions of the inclined hole are inclined and very small, there is a large radial cutting force in the cutting process. , are all single-edged for cutting, so that the workpiece shakes with the cutting tool, the cutting position is difficult t...

AI Technical Summary

Problems solved by technology

[0003] Since the entry and exit positions of the inclined hole are inclined and very small, there is a large radial cutting force in the cutting process. , are all single-edged for cutting, so that the workpiece shakes with the cutting tool, the cutting position is difficult to control, the tool life is low and easy to break; at the same time, chip removal is difficult and cooling is inconvenient during processing

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