Stop for a drilling, milling or countersinking tool

Patent metadata

Field	Value
Publication number	US-11260460-B2
Application number	US-201916563310-A
Country	US
Kind code	B2
Filing date	Sep 6, 2019
Priority date	Mar 8, 2017
Publication date	Mar 1, 2022
Grant date	Mar 1, 2022

Abstract

A stop for a rotating drilling, milling or countersinking tool comprising a stop sleeve coupled to a radial rolling bearing in such a way that it freely rotates about the tool, an outer bearing bush of the radial rolling bearing being attached to the stop sleeve and an inner bearing bush of the radial rolling bearing being attached to a shaft sleeve that can be attached to a tool shaft of the tool. An axial rolling bearing is also provided, a housing washer of the axial rolling bearing being supported on the stop sleeve and a shaft washer of the axial rolling bearing being supported on the shaft sleeve. In a secondary aspect, the invention relates to a drilling, milling or countersinking tool provided with such a stop.

First claim

The invention claimed is:

1. A stop for a rotating drilling, milling or countersinking tool comprising a stop sleeve, a first portion of the stop sleeve coupled to a radial rolling bearing so that the stop sleeve is capable of rotating freely about the tool, wherein an outer bearing bush of the radial rolling bearing is attached to the stop sleeve, and an inner bearing bush of the radial rolling bearing is attached to a shank sleeve, which can be attached to a tool shank of the tool, wherein an axial rolling bearing is additionally provided, wherein a housing washer of the axial rolling bearing is supported on a second portion of the stop sleeve, and a wave washer of the axial rolling bearing is supported on the shank sleeve.

2. The stop according to claim 1 , wherein the axial rolling bearing is arranged axially offset to the radial rolling bearing.

3. The stop according to claim 2 , wherein the axial rolling bearing is arranged on the side of the radial rolling bearing facing away from a tool head of the tool, viewed in the axial direction.

4. The stop according to claim 1 , wherein a bearing clamping screw is arranged on a bearing clamping thread of the shank sleeve, wherein the radial rolling bearing and the axial rolling bearing are arranged in such a way that both rolling bearings can be clamped jointly by an adjustment of the bearing clamping screw.

5. The stop according to claim 1 , wherein a bearing clamping screw is arranged on a bearing clamping thread of the shank sleeve, and the stop sleeve has an axially acting clamping surface for the housing washer, and the bearing clamping screw has an axially acting clamping surface for the wave washer, wherein both clamping surfaces face one another.

6. The stop according to claim 1 , wherein the stop sleeve has an axially acting clamping surface for the outer bearing bush, and the shank sleeve has an axially acting clamping surface for the inner bearing bush, wherein both clamping surfaces face one another.

7. The stop according to claim 1 , wherein the outer bearing bush is adhered or pressed into the stop sleeve.

8. The stop according to claim 1 , wherein the inner bearing bush is adhered or pressed onto the shank sleeve.

9. A drilling, milling or countersinking tool comprising a tool shank, wherein a stop according to claim 1 is attached to the tool shank.

10. The tool according to claim 9 , wherein the shank sleeve is adhered, pressed or clamped onto the tool shank.

11. The tool according to claim 9 , wherein the tool shank has an adjusting thread, onto which the shank sleeve and a locking nut, which is designed for the counter-locking of the shank sleeve, is screwed.

Assignees

• Guehring Kg

Inventors

• Von Puttkammer Ingo
• Rebholz Felix

Classifications

• F16C2322/39

  General buildup of machine tools, e.g. spindles, slides, actuators · CPC title

• B23C2260/08

  Bearings · CPC title

• B23B51/107 Primary

  having a pilot · CPC title

• B23C2255/12

  Depth stops · CPC title

• F16C19/545

  Systems comprising at least one rolling bearing for radial load in combination with at least one rolling bearing for axial load · CPC title