Method and device for producing a cable connection assembly

Patent metadata

Field	Value
Publication number	US-11217954-B2
Application number	US-202017114513-A
Country	US
Kind code	B2
Filing date	Dec 8, 2020
Priority date	Dec 18, 2019
Publication date	Jan 4, 2022
Grant date	Jan 4, 2022

Abstract

A method provides for producing a cable connection assembly including an electrical cable connected to a cable connector. The cable connector is positioned on a conductor end portion, so that a portion of the insulating layer is at least partially surrounded by the cable connector. The conductor end portion is disposed within a fastening tube, so that a first tube portion of the fastening tube surrounds the cable connector, and a second tube portion of the fastening tube surrounds the cable jacket. The fastening tube is pressed between strip-shaped pressing surfaces which are disposed around a central axis at a constant distance therefrom. During the pressing step, the first tube portion is pressed to a first inner diameter and the second tube portion is pressed to a second inner diameter greater than the first inner diameter.

First claim

What is claimed is:

1. A method for producing a cable connection assembly including a cable connector and an electrical cable connected to the cable connector, the electrical cable including at least an insulating layer and a cable jacket surrounding the insulating layer, the cable jacket being removed from at least one conductor end portion at least along a portion thereof, the method comprising:
positioning the cable connector on the at least one conductor end portion, so that a portion of the insulating layer is at least partially surrounded by the cable connector;
disposing the at least one conductor end portion within a fastening tube, so that a first tube portion of the fastening tube surrounds the cable connector at least along a portion thereof, and a second tube portion of the fastening tube surrounds the cable jacket at least along a portion thereof;
pressing the fastening tube between a plurality of strip-shaped pressing surfaces which are disposed around a central axis at a constant distance from the central axis, the first tube portion being crimped to the cable connector and the second tube portion being crimped to the cable jacket;
wherein, during the pressing step, the first tube portion is pressed to a first inner diameter and the second tube portion is pressed to a second inner diameter, the first inner diameter being less than the second inner diameter.

2. The method as recited in claim 1 , wherein, during the pressing step, the fastening tube is pressed along the entire length of the fastening tube.

3. The method as recited in claim 1 , wherein, prior to the pressing step, the fastening tube has a constant initial inner diameter.

4. The method as recited in claim 1 , wherein the fastening tube is pressed by at least ten pressing surfaces synchronously.

5. The method as recited in claim 1 , wherein the fastening tube is pressed by at least sixteen pressing surfaces synchronously.

6. The method as recited in claim 1 , wherein, during the pressing step, a gap in which the fastening tube remains unpressed remains between at least two adjacent ones of the pressing surfaces.

7. The method as recited in claim 6 , wherein the pressing surfaces have a width that is no greater than ten times a width of the gap.

8. The method as recited in claim 6 , wherein the pressing surfaces have a width that is no greater than five times a width of the gap.

9. The method as recited in claim 1 , wherein the electrical cable includes a shield, and wherein, during the disposing step, the shield is disposed between the fastening tube and a surface of the cable connector that faces the fastening tube.

10. The method as recited in claim 9 , wherein, during the pressing step, the cable connector is pressed, at least in the first tube portion, to an inner diameter that is equal to an initial inner diameter of the shield.

11. A device for producing a cable connection assembly in accordance with the method according to claim 1 , the device comprising:
a plurality of tool segments which are disposed around a central axis at a constant distance from the central axis and which are synchronously movable orthogonally to the central axis between a home position and a pressing position, each of the tool segments having a strip-shaped pressing surface on a side facing the central axis, each of the pressing surfaces including at least a first and a second pressing surface portion, the first pressing surface portion being spaced by a lesser distance from the central axis than the second pressing surface portion,
wherein the first pressing surface portions form a first pressing area and the second pressing surface portions form a second pressing area.

12. The device as recited in claim 11 , wherein a step is formed between the first and second pressing surface portions.

13. The device as recited in claim 12 , wherein a height of the step is no greater than a layer thickness of the cable jacket of the electrical cable.

14. The device as recited in claim 12 , wherein at least one of the tool segments has at least one chamfer in a region of the pressing surface.

15. The device as recited in claim 12 , wherein, in the first and/or in the second pressing surface portion, there is disposed at least one elevation which extends from the pressing surface portion toward the central axis.

16. The device as recited in claim 11 , wherein at least one of the pressing surfaces has rounded edges extending parallel to the central axis.

17. The device as recited in claim 11 , wherein at least ten of the tool segments are provided.

18. The device as recited in claim 11 , wherein the tool segments are disposed symmetrically around the central axis.

19. The device as recited in claim 11 , wherein at least one of the tool segments has a first sub-segment and a second sub-segment, the first sub-segment providing the first pressing surface portion and the second sub-segment providing the second pressing surface portion.

20. The device as recited in claim 19 , wherein the first sub-segment and the second sub-segment are detachably connected to each other.

Assignees

• Md Elektronik Gmbh

Inventors

• Duermeier Christian
• Lang Walter
• Huber Hubert
• Wiebe Rudolf

Classifications

• H01R9/0518

  Connection to outer conductor by crimping or by crimping ferrule · CPC title

• H01R4/20

  using a crimping sleeve {(H01R4/01 takes precedence)} · CPC title

• H01R43/0585 Primary

  for crimping apparatus with more than two radially actuated mandrels · CPC title

• H01R43/048 Primary

  Crimping apparatus or processes (H01R43/042 takes precedence) · CPC title

• H01R43/058

  Crimping mandrels · CPC title