Device and method for shaping workpieces by means of magnetic pulse forming

Patent metadata

Field	Value
Publication number	US-11065663-B2
Application number	US-201816169821-A
Country	US
Kind code	B2
Filing date	Oct 24, 2018
Priority date	Apr 25, 2016
Publication date	Jul 20, 2021
Grant date	Jul 20, 2021

Abstract

An installation and method for forming a workpiece, in particular for forming sheet-metal body panels, includes a first magnetic forming device which includes a first forming tool and a first magnetic tool and a second magnetic forming device which includes a second forming tool and a second magnetic tool. The first magnetic forming device is configured to form the workpiece in a first magnetic forming process and the second magnetic forming device, subsequent to the first magnetic forming process, is configured to further form the workpiece in a second magnetic forming process.

First claim

What is claimed is:

1. An apparatus for forming a workpiece, comprising:
a single installation, wherein the single installation includes:
a first magnetic forming device which comprises a first forming tool and a first magnetic tool;
a second magnetic forming device which comprises a second forming tool and a second magnetic tool;
wherein the first magnetic forming device is configured to form the workpiece in a first magnetic forming process;
wherein the second magnetic forming device, subsequent to the first magnetic forming process, is configured to further form the workpiece in a second magnetic forming process;
a first changeover device, wherein the first changeover device changes over the first and the second magnetic tools in the single installation; and
a second changeover device, wherein the second changeover device displaces and/or rotates and/or pivots the first and the second forming tools in the single installation;
wherein the first forming tool is disposed on a first movable tool table and the second forming tool is disposed on a second movable tool table;
wherein the first magnetic forming device and the second magnetic forming device are disposed in the single installation during both of the first magnetic forming process and the second magnetic forming process;
wherein the first magnetic tool and the second magnetic tool are disposed directly mutually adjacent to each other in the single installation during both of the first magnetic forming process and the second magnetic forming process;
and wherein the first forming tool is disposed on the first movable tool table in the installation during both of the first magnetic forming process and the second magnetic forming process and the second forming tool is disposed on the second movable tool table in the installation during both of the first magnetic forming process and the second magnetic forming process.

2. The apparatus as claimed in claim 1 further comprising a handling device which, upon a termination of the first magnetic forming process, is configured to supply the workpiece to the second magnetic forming device.

3. The apparatus as claimed in claim 1 , wherein the first and the second magnetic tools each include a coil and wherein the first and the second forming tools are dies.

4. The apparatus as claimed in claim 1 , wherein the first magnetic tool and the second magnetic tool differ from one another in terms of size, shape, and/or output.

5. A method for forming a workpiece, comprising the acts of:
providing the apparatus as claimed in claim 1 ;
providing the workpiece;
forming the workpiece by the first magnetic forming device in the first magnetic forming process; and
further forming the workpiece by the second magnetic forming device in the second magnetic forming process;
wherein the first magnetic tool and the second magnetic tool are changed over in the single installation between the first magnetic forming process and the second magnetic forming process by the first changeover device;
wherein the first and the second forming tools are displaced and/or pivoted and/or rotated in the single installation between the first magnetic forming process and the second magnetic forming process by the second changeover device.

6. The method as claimed in claim 5 , wherein the workpiece is a sheet-metal body panel.

7. The method as claimed in claim 5 , wherein the second magnetic forming process is performed immediately after the first magnetic forming process.

8. The method as claimed in claim 5 , wherein the workpiece upon a termination of the first magnetic forming process is moved to the second forming tool by a handling device.

Assignees

• Bayerische Motoren Werke Ag

Inventors

• Duenckelmeyer Matthias
• Sperl Christian

Classifications

• H01F41/02

  for manufacturing cores, coils, or magnets (H01F41/14 takes precedence; for dynamo-electric machines H02K15/00) · CPC title

• B21D26/14 Primary

  applying magnetic forces · CPC title

• H01F7/06

  Electromagnets; Actuators including electromagnets {(electric coils H01F5/00; devices for holding workpieces using electric force B23Q3/15; load-engaging elements for lifting articles electromagnetically B66C1/06; electromagnetic couplings F16D27/00; magnetic brakes F16D63/002; electromagnetically operated valves F16K11/24, F16K31/00; analysing materials by magnetic means G01N27/72, G01N27/80; electromagnets for winding mechanical clocks G04C1/02; electromagnetic relays H01H51/00; windings for salient poles of dynamo-electric machines H02K3/18; electromagnets for telegraphic communication H04L; for arc lamps H05B31/28)} · CPC title

• B30B1/42

  by magnetic means, e.g. electromagnetic · CPC title