Crimp tooling for a terminal crimping machine

Patent metadata

Field	Value
Publication number	US-9331446-B2
Application number	US-201314031728-A
Country	US
Kind code	B2
Filing date	Sep 19, 2013
Priority date	Sep 19, 2013
Publication date	May 3, 2016
Grant date	May 3, 2016

Abstract

Crimp tooling for crimping a crimp barrel of an electrical terminal to a wire includes an insulation crimper having an insulation crimp profile for crimping an insulation barrel segment of the crimp barrel to insulation of the wire, a wire crimper having a wire crimp profile for crimping a wire barrel segment of the crimp barrel to a conductor of the wire, and a transition crimper between the wire crimper and the insulation crimper. The transition crimper has a blended profile segueing from the wire crimp profile to the insulation crimp profile. The blended profile is used for crimping a transition segment of the crimp barrel between the insulation barrel segment and the wire barrel segment.

First claim

What is claimed is:

1. Crimp tooling for crimping a crimp barrel of an electrical terminal to a wire, the crimp tooling comprising:
an insulation crimper having an insulation crimp profile for crimping an insulation barrel segment of the crimp barrel to insulation of the wire;
a wire crimper having a wire crimp profile for crimping a wire barrel segment of the crimp barrel to a conductor of the wire; and
a transition crimper between the wire crimper and the insulation crimper, the transition crimper having a blended profile segueing without interruption from the wire crimp profile to the insulation crimp profile, the blended profile for crimping a transition segment of the crimp barrel around the wire that transitions without interruption between the insulation barrel segment and the wire barrel segment.

2. The crimp tooling of claim 1 , wherein the insulation crimp profile, blended profile and wire crimp profile define a continuous crimping profile for the crimp barrel.

3. The crimp tooling of claim 1 , wherein the blended profile has a smooth transition to the insulation crimp profile and has a smooth transition to the wire crimp profile.

4. The crimp tooling of claim 1 , wherein the transition crimper is formed integral with at least one of the insulation crimper and the wire crimper.

5. The crimp tooling of claim 1 , wherein the insulation crimper includes opposed lead-in sections for forming side walls of the insulation barrel segment and includes crimp radius sections for forming a top of the insulation barrel segment, the lead-in sections being separated by a first width, the crimp radius sections having a first radius of curvature, the wire crimper includes opposed lead-in sections for forming side walls of the wire barrel segment and includes crimp radius sections for forming a top of the wire barrel segment, the lead-in sections of the wire crimper being separated by a second width narrower than the first width, the crimp radius sections of the wire crimper having a second radius of curvature less than the first radius of curvature, the blended profile of the transition crimper transitions between the lead-in sections of the insulation crimper and wire crimper and transitions between the crimp radius sections of the insulation crimper and wire crimper.

6. The crimp tooling of claim 5 , wherein the transition crimper includes opposed lead-in sections for forming side walls of the transition segment of the crimp barrel and includes crimp radius sections for forming a top of the transition segment of the crimp barrel, the lead-in sections of the transition crimper transitioning between the lead-in sections of the insulation crimper and the corresponding lead-in sections of the wire crimper, the crimp radius sections of the transition crimper transitioning between the crimp radius sections of the insulation crimper and the corresponding crimp radius sections of the wire crimper.

7. The crimp tooling of claim 6 , wherein a width between the lead-in sections of the transition crimper constantly changes along the lead-in sections and wherein the radius of curvature of the crimp radius sections of the transition crimper constantly change along the crimp radius sections.

8. The crimp tooling of claim 6 , wherein the transition crimper has a front and a rear, the front provided at the wire crimper, the rear provided at the insulation crimper, the lead-in sections of the transition crimper widening from the front to the rear, the radii of the crimp radius sections of the transition crimper increasing from the front to the rear.

9. The crimp tooling of claim 1 , wherein the insulation crimper forms an F-crimp on the insulation barrel segment, the wire crimper forms an F-crimp on the wire barrel segment, and the transition crimper forms an F-crimp on the transition segment of the crimp barrel.

10. The crimp tooling of claim 1 , wherein the insulation crimper comprises a receiving space bounded by the insulation crimp profile that receives the insulation barrel segment of the crimp barrel, wherein the wire crimper comprises a receiving space bounded by the wire crimp profile that receives the wire barrel segment of the crimp barrel, and wherein the transition crimper comprises a receiving space bounded by the blended profile that receives the transition segment of the crimp barrel.

11. The crimp tooling of claim 10 , wherein a volume of the receiving space of the insulation crimper is generally constant from a front to a rear of the insulation crimper, wherein a volume of the receiving space of the wire crimper has a generally constant cross section from a front to a rear of the wire crimper, and wherein a volume of the receiving space of the transition crimper generally increases in cross section from a front to a rear of the transition crimper.

12. A terminal crimping machine for crimping a crimp barrel of an electrical terminal to a wire, the terminal crimping machine comprising:
crimp tooling configured to be driven during a crimping operation toward the crimp barrel to terminate the crimp barrel to the wire, the crimp tooling comprising:
an insulation crimper having an insulation crimp profile for crimping an insulation barrel segment of the crimp barrel to insulation of the wire, the insulation crimper includes opposed lead-in sections for forming side walls of the insulation barrel segment and includes crimp radius sections for forming a top of the insulation barrel segment, the lead-in sections being separated by a first width, the crimp radius sections having a first radius of curvature;
a wire crimper having a wire crimp profile for crimping a wire barrel segment of the crimp barrel to a conductor of the wire, the wire crimper includes opposed lead-in sections for forming side walls of the wire barrel segment and includes crimp radius sections for forming a top of the wire barrel segment, the lead-in sections of the wire crimper being separated by a second width narrower than the first width, the crimp radius sections of the wire crimper having a second radius of curvature less than the first radius of curvature; and
a transition crimper between the wire crimper and the insulation crimper, the transition crimper having a blended profile segueing without interruption from the wire crimp profile to the insulation crimp profile, the blended profile of the transition crimper transitions between the lead-in sections of the insulation crimper and wire crimper and transitions between the crimp radius sections of the insulation crimper and wire crimper the blended profile for crimping a transition segment of the crimp barrel around the wire that transitions without interruption between the insulation barrel segment and the wire barrel segment.

13. The terminal crimping machine of claim 12 , wherein insulation crimp profile, blended profile and wire crimp profile define a continuous crimping profile for the crimp barrel.

14. The terminal crimping machine of claim 12 , wherein the blended profile has a smooth transition to the insulation crimp profile and has a smooth transition to the wire crimp profile.

15. The terminal crimping machine of claim 12 , wherein the transition crimper includes opposed lead-in sections for forming side walls of the transition segment of the crimp barrel and includes crimp radius sections for forming a top of the transition segment of the crimp barrel, the lead-in sections of the transition crimper transitioning between the lead-in sections of the insulation crimper and wire crimper, the crimp radius sections of the transition crimper transitioning between the crimp radius sections of the insulation crimpe

Assignees

• Tyco Electronics Corp
• Tyco Electronics Amp Gmbh
• Te Connectivity Germany Gmbh

Inventors

• Bluemmel Uwe
• Morris Michael
• College David Alan

Classifications

• H01R4/62

  Connections between conductors of different materials; Connections between or with aluminium or steel-core aluminium conductors (H01R4/68 takes precedence) · CPC title

• H01R4/188

  having an uneven wire-receiving surface to improve the contact · CPC title

• H01R43/058

  Crimping mandrels · CPC title

• Y10T29/53235

  Means to fasten by deformation · CPC title

• H01R4/185

  combined with a U-shaped insulation-receiving portion · CPC title