Tool alignment device

Patent metadata

Field	Value
Publication number	US-10814403-B2
Application number	US-201916403866-A
Country	US
Kind code	B2
Filing date	May 6, 2019
Priority date	Nov 4, 2016
Publication date	Oct 27, 2020
Grant date	Oct 27, 2020

Abstract

A tool alignment device for mounting on a tool having a stop, especially on a drilling and/or countersinking tool having a single-piece tool shaft and a stop, for alignment of a drill hole and/or countersink to be introduced or for alignment of a finishing step in relation to a normal to the surface of a workpiece, comprising a main part and a through hole. Upon mechanical contact between the tool alignment device and the surface of the workpiece, a signaling device is actuated and emits alignment signal(s) during alignment in an alignment direction, and the stop of the tool can be accommodated in the main part, which comprises a guide device which establishes a connection between a stop sleeve of the stop and the tool alignment device such that the stop can be aligned in the alignment direction. Also, a drilling, milling and/or countersinking tool having a stop.

First claim

The invention claimed is:

1. A tool alignment device for arrangement on a drilling and/or countersinking tool comprising a single-piece tool shank and a stop, for aligning a bore and/or countersink to be introduced or for aligning a finishing step in relation to a normal to the surface of a workpiece, comprising a main part and a through hole, wherein at least one signaling device is comprised, which is actuated upon mechanical contact of the tool alignment device with the surface of the workpiece and outputs at least one alignment signal during alignment in an alignment direction, and that the stop of the tool can be accommodated in the main part, wherein the main part comprises a guide device, which establishes a connection, between a stop sleeve of the stop and the tool alignment device, so that the stop can be aligned in the alignment direction, wherein:
the stop is guided in the tool alignment device in a longitudinally displaceable manner, and is guided through the guide device, wherein the stop can be displaced in the main part in a longitudinally axial manner in the direction of the workpiece,
the guide device comprises at least one pin, one web and/or one groove, and
the web or the groove runs across the complete length of the tool alignment device of the stop, so that the stop can be displaced in such a way that an underside of the stop can come into mechanical contact with the surface of the workpiece.

2. The tool alignment device according to claim 1 , wherein the stop can be connected to the tool alignment device in a rotationally fixed manner.

3. The tool alignment device according to claim 1 , wherein the tool alignment device comprises at least two mechanical or electrical sensing elements for bearing on the surface of the workpiece.

4. The tool alignment device according to claim 3 , wherein the axial sensing position of the sensing elements can be adjusted for setting the alignment direction.

5. The tool alignment device according to claim 4 , wherein an electrical switching point of at least one electrical sensing element is positionally adjustable in the bearing direction towards the surface of the workpiece, and can be screwed or displaced relative to the surface of the workpiece by means of a first contact adjusting screw, so that the alignment device can be set in relation to the normal of a surface of a workpiece.

6. The tool alignment device according to claim 5 , wherein at least the first contact adjusting screw or at least a second contact adjusting screw can be positionally secured via a locking screw.

7. The tool alignment device according to claim 3 , wherein all sensing elements close an electric circuit between an electrical current source comprised in the main part and the signaling device by means of a series connection actuated by the sensing elements by means of an alignment movement of the tool alignment device in relation to the normal of the surface of the workpiece, so as to actuate the individual signaling device by means of the closed electric circuit.

8. The tool alignment device according to claim 7 , wherein the at least two sensing elements have the same length L and/or that the main part is embodied circular cylindrically or partially circular cylindrically, and/or that the signaling device is arranged on the top side of the main part and is embodied as optical, haptic, and/or as acoustic signal generator.

9. The tool alignment device according to claim 3 , wherein at least one spring contact sheet, which can be mechanically contacted by means of at least one electrical sensing element, can be electrically contacted via the contact adjusting screw with a screw contact sheet, wherein the contact adjusting screw can be accessed and set from the top side of the main part and is arranged in the main part in the alignment direction.

10. The tool alignment device according to claim 9 , wherein the at least one spring contact sheet is arranged parallel to the screw contact sheet in the main part, wherein the screw contact sheet can be electrically contacted with the spring contact sheet via at least one contact adjusting screw by means of a spring movement, which is triggered by the sensing element.

11. The tool alignment device according to claim 9 , wherein the screw contact sheet has bores, into which the contact adjusting screw can be inserted, soldered or screwed, whereby a permanently-guiding connection is established between the screw contact sheet and the contact adjusting screw.

12. The tool alignment device according to claim 3 , wherein the tool alignment device comprises at least three mechanical or electrical sensing elements for bearing on the surface of the workpiece.

13. The tool alignment device according to claim 3 , wherein the sensing elements are arranged so as to be distributed evenly circumferentially on the workpiece-side front side of the main part.

14. The tool alignment device according to claim 3 , wherein at least one spring contact sheet, which can be mechanically contacted by means of at least one electrical sensing element, can be electrically contacted via the contact adjusting screw with a screw contact sheet, wherein at least two contact adjusting screws can be electrically connected via a joint spring contact sheet, and at least two contact adjusting screws are electrically connected to one another via a first screw contact sheet.

15. The tool alignment device according to claim 14 , wherein an electrical current source and/or the signaling device is in electrical contact with (i) at least one spring contact sheet and/or (ii) at least the first screw contact sheet or at least a second screw contact sheet.

16. A drilling, milling and/or countersinking tool comprising a stop, wherein the stop is accommodated in a tool alignment device according to claim 1 .

17. The drilling, milling and/or countersinking tool comprising a stop according to claim 16 , wherein the stop is clamped, screwed or adhered to the tool shank of a deburring tool.

18. The tool alignment device according to claim 1 , wherein the web and/or the groove runs in the longitudinal direction, and can accordingly be guided in a longitudinally axial manner in a groove or a pin or web of the stop sleeve, so that a rotationally fixed connection between the tool alignment device and the stop, and an axial displaceability of the stop is provided in the tool alignment device.

19. The tool alignment device according to claim 1 , wherein the web and/or the groove runs in the longitudinal direction parallel to the longitudinal axis of the tool alignment device, and can accordingly be guided in a longitudinally axial manner in a groove or a pin or web of the stop sleeve, so that a rotationally fixed connection between the tool alignment device and the stop, and an axial displaceability of the stop is provided in the tool alignment device.

20. A tool alignment device for arrangement on a drilling and/or countersinking tool comprising a single-piece tool shank and a stop, for aligning a bore and/or countersink to be introduced or for aligning a finishing step in relation to a normal to the surface of a workpiece, comprising a main part and a through hole, wherein at least one signaling device is comprised, which is actuated upon mechanical contact of the tool alignment device with the surface of the workpiece and outputs at least one alignment signal during alignment in an alignment direction, and that the stop of the tool can be accommodated in the main part, wherein the main part comprises a guide device, which

Assignees

• Guehring Kg

Inventors

• Rebholz Felix
• Von Puttkamer Ingo

Classifications

• Y10T408/21

  with signal, indicator, illuminator or optical means · CPC title

• B23D2277/68

  Pilots · CPC title

• B23B51/104

  with stops · CPC title

• B23B49/005 Primary

  Attached to the drill · CPC title

• B23C9/00 Primary

  Details or accessories so far as specially adapted to milling machines or cutter (drives, control devices, or accessories, in general B23Q) · CPC title