SU1715565A1 - Abrasive tool - Google Patents

Abstract

The invention relates to a technique for the manufacture of an abrasive tool and can be used for finishing and finishing the machined shaped surface, for example, optical lenses, turbine blades, etc. Abrasive tool includes a housing with locking elements made in the form of threaded rings. An abrasive-carrying screw helix is installed on the body, the surface of which is formed by sections separated by radial channels, and the locking elements are installed in contact with a V-shaped external profile of the outermost coil of the helix. 1 hp ff, 2 ill.

Description

The invention relates to a technique for manufacturing an abrasive tool and can be used in the finishing processing and fine-tuning of a shaped surface, for example, optical lenses, turbine blades, etc.

The purpose of the invention is to expand the technological capabilities of the instrument by ensuring the formation of a complex profile on its working surface.

FIG. 1 shows an abrasive tool during surface treatment; in fig. 2 - working surface of an abrasive-helical spiral helix, bottom view. The abrasive tool includes a housing 1, which is an annular bushing. On the housing 1 is installed a screw spiral 2 with a V-shaped outer profile of the extreme spiral turn. The surface of helix 2 is formed by segmental sections 3 (Fig. 2) of abrasive or diamond containing material deposited on it on a metal bond crossed by

radial channels 4. Threaded rings 5 and 6 are installed on the helical coil 2, which function as locking elements, with openings 7 for inserting elements into them that facilitate the mutual movement of the rings; The tool provides a convex 8 or concave 9 profile on its working surface for machining corresponding surfaces.

The grinding wheel is assembled in the following sequence.

A screw abrasive-carrying helix 2 is mounted on the annular surface of the sleeve of the housing 1, on which the locking threaded rings 5 and 6 are put on. The radial channels 4 on the abrasive-containing surface 3 of the helical helix 2 are cut in the assembled circle. The central hole of the annular sleeve of the housing 1 is used to remove chips, and, in addition to

cl

with

x | SL

sl o cl

in addition, to fix an additional grinding wheel in it for processing transition surfaces, which are predominantly rotation bodies.

When machining surfaces, the vibration-absorbing properties of tools of spiral types, which can also be attributed to cutters with fixed cutting inserts mounted on the working surfaces of diamond- or abrasive-containing layers, are used to ensure an increase in the quality of processing.

PRI me R. Depending on the purpose of the process, various materials can be used as the material for the abrasive-carrying working layer of the helical spiral. For example, for grinding workpieces with a complex profile of hard-to-machine steels, mono-corundum 43A, 44A, 45A or diamonds A, AGO, ACC can be used. Since the bond characterizes the hardness and strength of the tool, the type of bond is determined by the purpose of the process. So, for the proposed tool

when using a diamond-containing material, metal is preferred.

link

Claims (2)

1. Abrasive tool, made in the form of a body with an abrasive-carrying element installed with the possibility of axial movement and stopper by means of fixing elements, and with the aim of expanding the technological capabilities of the tool by ensuring the formation of a complex profile on its working surface, the abrasive-bearing element made as spiral helix with a V-shaped outer profile of the outermost coil of the helix, with the locking elements made in the form of an outermost coil installed in contact with each other and with the outer surface spirals of two threaded rings. 2. The tool according to claim 1, characterized in that radially arranged channels are made on the abrasive element. eight 1