Tool setter for a grinding machine

Abstract

A device or tool setter has the purpose of setting the position of a support bar, adjustably connected to a grinding machine, in relation to a rotatable grindstone of the machine for obtaining a desired edge angle of a tool supported for grinding by the support bar. The device is provided with discs for defining two contact points with the grindstone and a hole for connection to the support bar.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

The invention will be described in further detail below under reference to the accompanying drawings, in which

FIG. 1 is a perspective view of an exemplary grinding machine, with which a device or turning tool setter according to the invention may be used,

FIG. 2 is a perspective view to a larger scale of a jig to be used at sharpening of a turning tool by means of the grinding machine,

FIGS. 3 and 4 illustrate tool sharpening under two different conditions and the prevailing geometrical relationships,

FIG. 5 is a somewhat schematic side view of the device or turning tool setter according to the invention in its use at a grindstone,

FIG. 6 is a front view of the turning tool setter according to the invention, and

FIG. 7 is a perspective view of the rear side of the turning tool setter according to the invention.

Claims

1. A device for setting a position of a support bar, said bar being adjustably connected to a grinding machine in relation to a rotatable grindstone of the grinding machine, for obtaining a desired edge angle of a tool supported for grinding by the support bar, comprising means for defining two contact points with the grindstone and means for connection to the support bar.

2. The device according to claim 1, wherein the device is a plate wherein the means for defining two contact points are metal discs attached to the plate, and the means for connection to the support bar is at least one hole in the plate.

3. The device according to claim 2, wherein the plate includes at least a second hole for optional connection to the support bar.

4. The device according to claim 2, wherein the plate includes a projection forming shoulders at different distances from an edge of the plate for setting a protrusion for a tool to be sharpened.

5. The device according to claim 2, wherein the plate includes magnets for attachment of the device to a metal surface.

6. The device according to claim 2, wherein an edge of the plate includes grooves for checking an edge angle of a tool.