Identification device for a tool or an assembly

Patent metadata

Field	Value
Publication number	US-11167386-B2
Application number	US-201916367454-A
Country	US
Kind code	B2
Filing date	Mar 28, 2019
Priority date	Mar 29, 2018
Publication date	Nov 9, 2021
Grant date	Nov 9, 2021

Abstract

A device for the identification of a tool which is accommodated in a tool holder includes a read/write head configured to communicate with an RFID transponder. The read/write head extends above and/or below the tool holder over at least 70% of an overall diameter of the tool holder. The tool holder has a longitudinal axis and, on its side, a recess which is formed perpendicular to the longitudinal axis of the tool holder and in which the RFID transponder is inserted such that the transfer curve of the RFID transponder runs upwards and/or downwards, as seen from the recess, in a direction of the longitudinal axis of the tool.

First claim

The invention claimed is:

1. A device for the identification of a tool which is accommodated in a tool holder, the device comprising:
a read/write head configured to communicate with a radio frequency identification (RFID) transponder,
wherein the read/write head is configured to extend above or below the tool holder over at least 70% of an overall diameter of the tool holder,
wherein the tool holder has a longitudinal axis, and
wherein the tool holder has, on its-a side of the tool holder, a recess extending perpendicular to the longitudinal axis of the tool holder and in which the RFID transponder is inserted such that a transfer curve of the RFID transponder runs upwards and/or downwards, as seen from the recess, in a direction of the longitudinal axis of the tool holder.

2. The device according to claim 1 , wherein the RFID transponder is a ferritic RFID transponder.

3. The device according to claim 1 , wherein the RFID transponder has a shape of a bar and is inserted into the recess, a length of the bar extending parallel to the longitudinal axis of the tool holder.

4. The device according to claim 3 , wherein the bar-shaped RFID transponder has a length of less than 10 mm.

5. The device according to claim 1 , wherein the read/write head extends over at least 80% of the overall diameter of the tool holder.

6. The device according to claim 1 , wherein the read/write head is formed as a circular disc with an inner diameter and an outer diameter.

7. The device according to claim 1 , wherein the tool holder is formed in a shape of a hollow tapered shaft.

8. The device according to claim 1 , wherein the device further comprises a plurality of tool holders, the plurality of tool holders including the tool holder, the plurality of tool holders being configured to be accommodated in an exchange holder, and wherein the exchange holder is configured to be moved such that the individual tool holders accommodated in the exchange holder pass the read/write head.

9. The device according to claim 1 , wherein the tool with the tool holder is insertable into a processing machine.

10. A processing machine, the processing machine comprising the device according to claim 1 .

11. A method for the identification, via the device according to claim 1 , of the tool which is accommodated in the tool holder, the method comprising:
providing the read/write head configured to communicate with the RFID transponder, wherein the read/write head extends above or below the tool holder over at least 70% of the overall diameter of the tool holder.

12. The method according to claim 11 , the method further comprising:
guiding past of the tool holder above or below the read/write head, so that the tool holder dips into the transfer curve of the RFID transponder; and
communicating between the read/write head and the RFID transponder to identify the tool.

Assignees

• Turck Holding Gmbh

Inventors

• Moder Ralf
• Steiner Rene

Classifications

• B23B2270/36

  Identification of tooling or other equipment · CPC title

• G06K19/0723

  the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs · CPC title

• B23B2231/10

  Chucks having data storage chips · CPC title

• Y10T483/10

  Process · CPC title

• B23Q3/15546 Primary

  Devices for recognizing tools in a storage device, e.g. coding devices · CPC title