Cylinder holder for a hydroforming device, and hydroforming device

Patent metadata

Field	Value
Publication number	US-10399136-B2
Application number	US-201715712674-A
Country	US
Kind code	B2
Filing date	Sep 22, 2017
Priority date	Sep 29, 2016
Publication date	Sep 3, 2019
Grant date	Sep 3, 2019

Abstract

A cylinder holder for a hydroforming device has a substantially cuboid cylinder holder body with a hydraulic cylinder seat to which a hydraulic cylinder can be fixed. The hydraulic cylinder is configured to supply a hydroforming fluid to a workpiece to be shaped. The cylinder holder further includes a base plate to which the cylinder holder body is fixed at a predetermined angle with an anti-rotation lock unit.

First claim

The invention claimed is:

1. A cylinder holder for a hydroforming device, comprising:
a substantially cuboid cylinder holder body which comprises a hydraulic cylinder seat to which a hydraulic cylinder can be fixed which is configured to supply a hydroforming fluid to a workpiece to be shaped, the hydraulic cylinder seat extending substantially from a first face of the cylinder holder body to a second face, opposite the first face, of the cylinder holder body;
a base plate is arranged on a third face positioned between the first face and the second face, wherein the base plate comprises a device base connection to fix the base plate to a device base, and wherein the cylinder holder body is fixed to the base plate at a predetermined angle with an anti-rotation lock unit; and
wherein the anti-rotation lock unit comprises
a projection which is arranged on one of the third face of the cylinder holder body and the base plate, and is not rotationally symmetrical about an anti-rotation lock axis, and
an opening which geometrically corresponds to the projection and is arranged on the other of the cylinder holder body and the base plate, the projection being received in the opening at the predetermined angle.

2. The cylinder holder of claim 1 wherein the projection and the opening have a substantially polygonal, in particular quadrangular, cross-section.

3. The cylinder holder according to claim 1 wherein the opening is arranged substantially obliquely to a lateral edge of the base plate or of the cylinder holder body.

4. The cylinder holder of claim 1 wherein, in addition to the base plate arranged on the third face, a second base plate is arranged on a face opposite the third face, and the second base plate is fixed to the cylinder holder body at a predetermined angle with an anti-rotation lock unit, the anti-rotation lock unit comprising a projection which is arranged on one of the third face of the cylinder holder body and the base plate and is not rotationally symmetrical about an anti-rotation lock axis, and an opening which geometrically corresponds to the projection and is arranged on the other of the cylinder holder body and the base plate, the projection being received in the opening at the predetermined angle.

5. A cylinder holder for a hydroforming device, comprising:
a substantially cuboid cylinder holder body which comprises a hydraulic cylinder seat to which a hydraulic cylinder can be fixed which is configured to supply a hydroforming fluid to a workpiece to be shaped, the hydraulic cylinder seat extending substantially from a first face of the cylinder holder body to a second face, opposite the first face, of the cylinder holder body;

a base plate is arranged on a third face positioned between the first face and the second face, wherein the base plate comprises a device base connection to fix the base plate to a device base, and wherein the cylinder holder body is fixed to the base plate at a predetermined angle with an anti-rotation lock unit; and
wherein the anti-rotation lock unit comprises
a projection which is arranged on one of the third face of the cylinder holder body and the base plate, and is rotationally symmetrical about an anti-rotation lock axis, and
an opening which geometrically corresponds to the projection and is arranged on the other of the cylinder holder body and the base plate, the projection being received in the opening, and the cylinder holder body being clamped to the base plate with a clamp, wherein the clamp is bolted to the base plate and a clamping surface on a clamp side engages a clamping surface on the cylinder holder body side.

6. The cylinder holder of claim 5 wherein the clamping surface on the cylinder holder body side is a lateral surface of a clamping groove, the clamping groove being arranged on a fourth face positioned between the first, second, and third faces of the cylinder holder body.

7. The cylinder holder of claim 6 wherein the fourth face is substantially a circular cylinder lateral surface portion, arranged with a circular cylinder radius about the anti-rotation lock axis, and the clamp is substantially arcuate, an arc radius substantially corresponding to the circular cylinder radius.

8. The cylinder holder of claim 5 wherein the clamp is a gripping claw.

9. The cylinder holder of claim 5 wherein, in addition to the base plate arranged on the third face, a second base plate is arranged on a face opposite the third face, and the second base plate is fixed to the cylinder holder body at a predetermined angle with an anti-rotation lock unit, the anti-rotation lock unit comprising a projection which is arranged on one of the third face of the cylinder holder body and the base plate and is not rotationally symmetrical about an anti-rotation lock axis, and an opening which geometrically corresponds to the projection and is arranged on the other of the cylinder holder body and the base plate, the projection being received in the opening at the predetermined angle.

10. A hydroforming device comprising:
a cylinder holder according to claim 5 .

11. A cylinder holder for a hydroforming device, comprising:
a substantially cuboid cylinder holder body which comprises a hydraulic cylinder seat to which a hydraulic cylinder can be fixed which is configured to supply a hydroforming fluid to a workpiece to be shaped, the hydraulic cylinder seat extending substantially from a first face of the cylinder holder body to a second face, opposite the first face, of the cylinder holder body;
a base plate is arranged on a third face positioned between the first face and the second face, wherein the base plate comprises a device base connection to fix the base plate to a device base, and wherein the cylinder holder body is fixed to the base plate at a predetermined angle with an anti-rotation lock unit; and
wherein the anti-rotation lock unit comprises a first toothing on the cylinder holder body side, arranged on the third face of the cylinder holder body, and a second toothing on the base plate side, the first and second toothings engaging with one another at the predetermined angle.

12. The cylinder holder of claim 11 wherein the toothings on the cylinder holder body side and on the base plate side are arranged substantially along a toothing circle extending about an anti-rotation lock axis and having a toothing circle radius.

13. The cylinder holder of claim 12 wherein the toothing on the cylinder holder body side is formed by at least one toothing arc segment having the toothing circle radius, and the toothing on the base plate side is formed by at least one toothing arc segment, in particular a closed toothing ring, having the toothing circle radius.

14. The cylinder holder of claim 13 wherein the cylinder holder body comprises a round bottom plate which is received within an interior of the toothing ring.

15. The cylinder holder of claim 11 wherein the toothings are Hirth couplings.

16. The cylinder holder of claim 11 wherein, in addition to the base plate arranged on the third face, a second base plate is arranged on a face opposite the third face, and the second base plate is fixed to the cylinder holder body at a predetermined angle with an anti-rotation lock unit, the anti-rotation lock unit comprising a projection which is arranged on one of the third face of the cylinder holder body and the base plate and is not rotationally symmetrical about an anti-rotation lock axis, and an opening which geometrically corresponds to the projection and is arranged on the other of the cylinder holder body and the base plate, the projection being re

Assignees

• Faurecia Emissions Control Technologies Germany Gmbh
• Univ Dortmund Tech

Inventors

• Joghan Hamed Dardaei
• Staupendahl Daniel
• Henke Andreas
• Keesser Thorsten
• Legat Francois

Classifications

• B21D26/039

  Means for controlling the clamping or opening of the moulds · CPC title

• B21D26/045 Primary

  Closing or sealing means · CPC title

• B21D26/029

  Closing or sealing means · CPC title

• B21D24/12 Primary

  mechanically · CPC title

• B21D37/04

  Movable or exchangeable mountings for tools · CPC title