Device and method for mutual separation of two workpiece components of a plate-like workpiece

Patent metadata

Field	Value
Publication number	US-10512965-B2
Application number	US-201615357362-A
Country	US
Kind code	B2
Filing date	Nov 21, 2016
Priority date	May 22, 2014
Publication date	Dec 24, 2019
Grant date	Dec 24, 2019

Abstract

Devices for separating two workpiece parts, e.g., metal sheets, from one another are described and include a workpiece mounting, a lifting device arranged on one side of the workpiece mounting, and a counter-holder arranged on the opposite side of the workpiece mounting. The counter-holder can be transferred into a fixing state and into a releasing state. One of the workpiece parts to be separated from one another is provided as a removal part, the other as a remaining part. For separating the two workpiece parts, the removal part, which is acted upon by the lifting device and supported by the counter-holder, can be moved by means of the lifting device perpendicular to the mounting in relation to the remaining part by a removal movement. At least in the releasing state, the counter-holder forms a rigid abutment in the lifting direction for the removal part. The rigid abutment has the effect that the removal part is aligned parallel to the mounting. Machine-based systems include a processing unit for producing two workpiece parts from a sheet-like workpiece and a separating device as described herein. Methods for separating two workpiece parts of a sheet-like workpiece are carried out by means of the devices described herein and can be part of a machine-based process.

First claim

What is claimed is:

1. A method for mutual separation of two workpiece components of a plate-like workpiece, the method comprising
supporting the two workpiece components that are intended to be separated from each other by means of a workpiece bearing with mutual overlapping perpendicular to a support plane defined by the workpiece bearing;
lifting one of the workpiece components that are intended to be separated from each other in a lifting direction perpendicularly to the support plane by a lifting apparatus comprising one or more lifting devices arranged at one side of the support plane, wherein the lifted workpiece component is provided as a removal component and wherein the lifting apparatus is provided with a numerically controlled lifting movement unit comprising one or more rails configured to move the lifting apparatus in the lifting direction;
supporting the removal component that is lifted by the lifting apparatus in the lifting direction by a counter-holder comprising a support body, wherein the counter-holder can be transferred into an operational, fixing state and into a non-operational, releasing state, wherein the counter-holder is arranged at a side of the support plane opposite a side of the lifting apparatus, wherein the counter-holder is provided with a numerically controlled counter-holder movement unit comprising one or more rails configured to move the counter-holder in the lifting direction; and
moving the removal component which is acted on by the lifting apparatus and which is supported by the counter-holder with a removal movement in the lifting direction perpendicular to the support plane by the lifting apparatus perpendicular to the support plane relative to the other workpiece component provided as a remaining component and thereby separating the removal component from the remaining component, wherein the lifting movement unit and the counter-holder movement unit are numerically controlled such that the counter-holder supporting the removal component moves in the lifting direction synchronously with the lifting apparatus acting on the removal component and performing the removal movement in the lifting direction, and wherein the removal component which is lifted by the lifting apparatus in the lifting direction is supported during the removal movement in a rigid manner by the counter-holder in the lifting direction with a parallel orientation with respect to the support plane, which counter-holder is in the releasing state in which the removal component is released therefrom.

2. The method of claim 1 , further comprising:
transferring the counter-holder into the releasing state before the beginning of the removal movement and into the fixing state after the removal movement is at least partially completed; and
supporting the removal component during the removal movement by means of the counter-holder that has been transferred into the releasing state in the lifting direction with an orientation that is parallel with the support plane.

3. The method of claim 1 , wherein the lifting apparatus further comprises a housing connected to at least one of the one or more rails of the lifting movement unit.

4. The method of claim 1 , wherein the support body comprises one or more electrostatic grippers, solenoids, or sintering sponges.

5. The method of claim 1 , wherein the support body is rigid in the lifting direction.

6. The method of claim 1 , wherein the counter-holder further comprises a housing connected to at least one of the one or more rails of the counter-holder movement unit.

7. The method of claim 1 , wherein the one or more rails of the lifting movement unit comprise a longitudinal rail and one or more transverse rails.

8. The method of claim 1 , wherein the one or more rails of the counter- holder movement unit comprise a longitudinal rail and one or more transverse rails.

9. The method of claim 1 , wherein the lifting devices each comprise a lifting pin connected to a piston and cylinder unit.

10. The method of claim 9 , wherein the piston and cylinder unit comprises a pneumatic piston and cylinder unit.

11. The method of claim 1 , wherein the counter-holder further comprises one or more retention devices.

12. The method of claim 11 , wherein the one or more retention devices comprise suction grippers, electrostatic grippers, solenoids, or sintering sponges.

13. A manufacturing method comprising:
producing two workpiece components from a plate-like workpiece by a separating workpiece processing operation; and
separating the two workpiece components from each other after the production thereof using the method of claim 1 for mutual separation of the two workpiece components.

14. The manufacturing method of claim 13 , further comprising:
producing the two workpiece components in a processing position;
separating the two workpiece components from each other in an unloading position; and
moving the counter-holder into the processing position and into the unloading position of at least one of the two workpiece components.

15. The manufacturing method of claim 14 , wherein the two workpiece components, during the production thereof, are positioned relative to each other in a predetermined position by the counter-holder that has been moved into the processing position of at least one of the two workpiece components.

16. The manufacturing method of claim 15 , wherein the two workpiece components are positioned relative to each other in a predetermined position by the counter-holder that has been transferred into the fixing state.

17. The manufacturing method of claim 14 , wherein the two workpiece components, after they have been produced, are moved together from the respective processing position into the respective unloading position, wherein the counter-holder is jointly moved with the two workpiece components, and wherein the two workpiece components, when they are moved together from the respective processing position into the respective unloading position, are positioned relative to each other in a predetermined position by the jointly moved counter-holder.

18. The manufacturing method of claim 17 , wherein the two workpiece components are positioned relative to each other in a predetermined position by the counter-holder that has been transferred into the fixing state.

Assignees

• Trumpf Werkzeugmaschinen Gmbh Co Kg
• Schmalz J Gmbh

Inventors

• Prokop Heinz-Juergen
• Epperlein Peter
• Eisele Thomas
• Dunkmann Walter
• Deiss Magnus
• Schmauder Frank

Classifications

• B21D45/02 Primary

  Ejecting devices · CPC title

• B21D28/06

  Making more than one part out of the same blank; Scrapless working · CPC title

• B26D7/1836

  by pulling out · CPC title

• B26D7/1818

  by pushing out · CPC title

• B21D43/282

  Discharging crop ends or the like · CPC title