SU410955A1 - - Google Patents

Description

The invention can be used by one enterprise processing glass, quartz, ceramics, etc. .materials.

A drill is known comprising a body with a shank and a radial groove ilayashiba, in which cutting elements are mounted. However, the application of this drill is limited.

The purpose of the invention is the unification and expansion of the technological capabilities of the drill, i.e. the manufacture of several rings simultaneously or with several grooves having different widths.

This is achieved by cutting, and the elements are installed with the possibility of rotation around its longitudinal axis and are made with a diamond-bearing cutting surface, the cross section of which has the shape of an oval.

FIG. 1 - drill diagram with the arrangement of cutting elements but one 1 1 circle; in fig. 2 - the same, with the arrangement of the cutting elements along two circumferences when cutting parts such as rings; in fig. 3 - the form of the cutting element; in fig. 4 is a view along arrow L of FIG. 3; on fng. 5 - workpiece with several concentric ring-shaped burners; in fig. 6, 7 and 8 - installation options) e of some of the elements on the processing of grooves of various innpinibi.

2

A diamond ring drill consists of standardized cutting elements 1, which are inserted into the radial grooves of the plate 2. The plate with the help of mounting studs and screws through an elastic gasket 3 is connected to the housing 4 having a shank for fastening the tool in the machine spindle.

During operation, the instrument is reported

rotational and translational motion relative to the drill axis. Coolant is supplied through a central opening in the housing. If it is necessary to drill a hole of a certain diameter D, the cutting elements are installed circumferentially, one in each slot of the plate.

A detail in the form of a ring can be cut if there are two cutting elements in each radial fit.

For machining parts that have a certain number of concentric annular 1pas, the same number of cutting elements are inserted into each radial groove of the planer. Depending on the required width

the groove of the cutting element can be rotated by an angle of up to 90 ° so that the width of the groove will be equal to a certain value of h at, (I is the value of the minor axis of the oval section of the cutting element; b is the value of large

axis.

If it is required to cut a groove in width, the cutting elements should be positioned as shown in FIG. 8, with e1 om h nh - k (n - 1),

where b is the value of the patient axis of the element section;

 number of cutting elements; k - vol.1 | 1 reason overlap.

Fully worn cutting elements can be replaced.

Subject invention

Ring drill containing body with shank and washer with radial

grooves in which cutting elements are installed, characterized in that, in order to unify and expand the technological capabilities of the drill, the cutting elements are rotatably mounted around

its longitudinal axis and is made with a diamond-bearing cutting surface, the cross section of which has the shape of an oval.

8id A

And fi / e.5

h-a

- - “Riga

,

9ig.8