Tool and method for processing a workpiece with a tool element of a tool

Patent metadata

Field	Value
Publication number	US-10071414-B2
Application number	US-201514966013-A
Country	US
Kind code	B2
Filing date	Dec 11, 2015
Priority date	Dec 17, 2014
Publication date	Sep 11, 2018
Grant date	Sep 11, 2018

Abstract

A tool for processing a workpiece has a tool element for processing the workpiece and a control device. The control device is configured to evaluate a rotation angle, which is detected by a detection device, and with which the tool is arranged in space, after a processing operation of the workpiece has been carried out with the tool element. The control device is also configured to release the control of the tool in a manner dependent on whether the tool has been arranged in space with a predetermined rotation angle after the workpiece has been processed.

First claim

What is claimed is:

1. A tool, comprising:
a tool element configured to receive a fixing element for processing a workpiece; and
a control device configured to
(i) evaluate a rotation angle, which is detected by a detection device, and with which the tool is arranged in space,
(ii) after a processing operation of the workpiece with the fixing element has been carried out by the tool element and before another fixing element is received in the tool element for a subsequent processing operation, prevent operation of the tool element while the rotation angle detected by the detection device is less than a predetermined rotation angle,
(iii) allow operation of the tool element after the rotation angle detected by the detection device reaches the predetermined rotation angle, and
(iv) after a processing operation of the workpiece with the fixing element has been carried out by the tool element and before the rotation angle detected by the detection device has reached the predetermined rotation angle, generate a warning signal if the rotation angle indicates that the tool is tilted forwardly to such a degree that a used portion of a fixing element retained in the tool element can slide out of the tool.

2. The tool according to claim 1 , further comprising:
a container configured to receive a portion of a fixing element which is retained by the tool element,
wherein the portion is produced as a result of the workpiece being processed with the tool element, and
wherein an arrangement of the tool with the predetermined rotation angle in space after the workpiece has been processed brings about a movement of the portion into the container.

3. The tool according to claim 1 , further comprising:
a start switch configured to start a processing operation of the workpiece with the tool element,
wherein the control device is configured to allow a switching operation of the start switch in a manner dependent on a result of the evaluation.

4. The tool according to claim 1 , further comprising:
an input device configured to receive input indicative of the predetermined rotation angle.

5. The tool according to claim 2 , further comprising:
a detection device configured to detect a rotation angle, through which the tool has been rotated after a processing operation of the workpiece; and
a display device configured to display values detected by the detection device.

6. The tool according to claim 5 , wherein the detection device has an acceleration sensor.

7. The tool according to claim 5 , wherein the display device is configured to output a warning if the tool has not, after a workpiece has been processed, been rotated through the predetermined rotation angle and/or if the tool has not, after a workpiece has been processed, been rotated through a predetermined second rotation angle, at which the portion can fall out of the tool if the predetermined second rotation angle is further exceeded.

8. The tool according to claim 1 , wherein the tool is a riveting tool.

9. A production installation for producing objects from at least one workpiece, the production installation, comprising:
at least one tool, including:
a tool element configured to receive a fixing element for processing a workpiece; and
a control device configured to
(i) evaluate a rotation angle, which is detected by a detection device, and with which the tool is arranged in space,
(ii) after a processing operation of the workpiece with the fixing element has been carried out by the tool element and before another fixing element is received in the tool element for a subsequent processing operation, prevent operation of the tool element while the rotation angle detected by the detection device is less than a predetermined rotation angle, and
(iii) allow operation of the tool element after the rotation angle detected by the detection device reaches the predetermined rotation angle, and
(iv) after a processing operation of the workpiece with the fixing element has been carried out by the tool element and before the rotation angle detected by the detection device has reached the predetermined rotation angle, generate a warning signal if the rotation angle indicates that the tool is tilted forwardly to such a degree that a used portion of a fixing element retained in the tool element can slide out of the tool,

wherein the at least one tool processes the workpiece.

10. The tool according to claim 1 , wherein the tool element is configured to receive a blind mandrel.

11. The tool according to claim 8 , wherein the tool element is configured to receive a blind mandrel.

Assignees

• Bosch Gmbh Robert

Inventors

• Scharfenberg Andreas
• Zurawski Manfred

Classifications

• B21J15/26

  operated by rotary drive, e.g. by electric motor · CPC title

• B23Q17/22

  for indicating or measuring existing or desired position of tool or work {(B23Q16/005 takes precedence)} · CPC title

• B21J15/28 Primary

  Control devices specially adapted to riveting machines not restricted to one of the preceding subgroups · CPC title

• B21J15/326

  Broken-off mandrel collection · CPC title

• B21J15/043

  by pulling a mandrel · CPC title