Servo-driven Z-shape bending device for terminal

Patent metadata

Field	Value
Publication number	US-11673176-B2
Application number	US-202016952700-A
Country	US
Kind code	B2
Filing date	Nov 19, 2020
Priority date	Nov 21, 2019
Publication date	Jun 13, 2023
Grant date	Jun 13, 2023

Abstract

A servo-driven Z-shape bending device includes a base, a Z-shape bending module disposed on the base, a servo-drive mechanism disposed on the base, and a terminal feeding mechanism disposed on the base. The Z-shape bending module is configured to perform a bending operation on a terminal to be bent to form a Z-shaped terminal. The servo-drive mechanism is configured to servo-drive the Z-shape bending module to perform the bending operation. The terminal feeding mechanism is configured to feed the terminal to be bent to the Z-shape bending module.

First claim

What is claimed is:

1. A servo-driven Z-shape bending device, comprising:
a base, the base further comprising a terminal loosening mechanism disposed on the base, the terminal loosening mechanism including a loosening jig and a loosening block, wherein the loosening jig is configured to push a portion of a terminal to be bent from a carrier to the loosening block;
a Z-shape bending module disposed on the base and configured to perform a bending operation on the terminal to be bent to form a Z-shaped terminal;
a servo-drive mechanism disposed on the base and configured to servo-drive the Z-shape bending module to perform the bending operation; and
a terminal feeding mechanism disposed on the base and configured to feed the terminal to be bent to the Z-shape bending module, further comprising a Z-shape shaping sub-mechanism configured to fine tune a degree of bending of a preliminary shaped terminal and shape the preliminary shaped terminal into the Z-shaped terminal.

2. The servo-driven Z-shape bending device of claim 1 , wherein the Z-shape bending module includes a first terminal bending mechanism configured to perform a first bending operation on the terminal to be bent to deform the terminal to be bent into the preliminary shaped terminal, wherein the preliminary shaped terminal is an L-shaped terminal.

3. The servo-driven Z-shape bending device of claim 2 , wherein the Z-shape bending module includes a second terminal bending mechanism configured to perform a second bending operation on the L-shaped terminal to deform the L-shaped terminal into the Z-shaped terminal.

4. The servo-driven Z-shape bending device of claim 3 , wherein the first terminal bending mechanism includes an L-shape bending sub-mechanism configured to bend the terminal to be bent and an L-shape shaping sub-mechanism configured to fine tune a degree of bending of the bent terminal and shape the bent terminal into the L-shaped terminal.

5. The servo-driven Z-shape bending device of claim 4 , wherein the L-shape bending sub-mechanism includes:
an L-shape bending lower punch fixedly mounted to the base;
an L-shape bending upper punch mounted to the base and configured to be movable relative to the L-shape bending lower punch in a punching direction to perform a punching action on the terminal to be bent; and
a first terminal pressing block mounted to the base and configured to press and fix the terminal to be bent on the L-shape bending lower punch.

6. The servo-driven Z-shape bending device of claim 5 , wherein the L-shape shaping sub-mechanism includes:
a second terminal pressing block mounted to the base and configured to press and fix the bent terminal;
an L-shape shaping lower punch mounted to the base and adapted to be pressed against the bent terminal;
an L-shape shaping upper punch abutting against and fitting with the L-shape shaping lower punch; and
an L-shape shaping micrometer mounted to the base and configured to act on the L-shape shaping upper punch to adjust movements of both the L-shape shaping upper punch and the L-shape shaping lower punch in a direction perpendicular to the punching direction, adjusting a degree of bending of the bent terminal to shape the bent terminal into the L-shaped terminal.

7. The servo-driven Z-shape bending device of claim 1 , further comprising a Z-shape bending sub-mechanism including:
a Z-shape bending upper punch fixedly mounted to the base;
a Z-shape bending lower punch configured to be movable relative to the Z-shape bending upper punch in a punching direction to perform a punching action on an L-shaped terminal; and

a third terminal pressing block mounted to the base and configured to press and fix the L-shaped terminal on the Z-shape bending upper punch.

8. The servo-driven Z-shape bending device of claim 7 , wherein the Z-shape bending sub-mechanism includes:
a lower punch controlling lever mounted to the base and configured to control a movement of the Z-shape bending lower punch; and
a lower punch lifting lever coupling the Z-shape bending lower punch to the lower punch controlling lever and configured to lift the Z-shape bending lower punch under the control of the lower punch controlling lever, the Z-shape bending lower punch is movable relative to the Z-shape bending upper punch in the punching direction.

9. The servo-driven Z-shape bending device of claim 8 , wherein the Z-shape shaping sub-mechanism includes:
a fourth terminal pressing block mounted to the base and configured to press and fix the bent L-shaped terminal;
a Z-shape shaping lower punch mounted to the base and adapted to act directly on the bent L-shaped terminal;
a Z-shape shaping upper punch abutting against the Z-shape shaping lower punch; and
a Z-shape bending micrometer mounted to the base and coupled to the Z-shape shaping upper punch.

10. The servo-driven Z-shape bending device of claim 9 , wherein the Z-shape bending micrometer is configured to adjust movements of both the Z-shape shaping upper punch and the Z-shape shaping lower punch in a direction perpendicular to the punching direction, adjusting the degree of bending of the bent L-shaped terminal to shape the bent L-shaped terminal into the Z-shaped terminal.

11. The servo-driven Z-shape bending device of claim 3 , wherein the servo-drive mechanism includes:
a bending servo driver mounted to the base; and
a servo coupling which couples the bending servo driver to the first terminal bending mechanism and the second terminal bending mechanism.

12. The servo-driven Z-shape bending device of claim 11 , wherein the bending servo driver is configured to provide the first terminal bending mechanism and the second terminal bending mechanism with a driving force through the servo coupling.

13. The servo-driven Z-shape bending device of claim 1 , wherein the terminal feeding mechanism includes:
a feeding electric motor mounted to the base;
a feeding ratchet mounted to the base and configured to feed the terminal to be bent by being driven by the feeding electric motor; and
a feeding sensor mounted to the base and configured to sense whether or not the terminal to be bent is located on a bending operation station.

14. The servo-driven Z-shape bending device of claim 1 , further comprising a carrier guiding device disposed on the base and configured to guide a traveling direction of a carrier carrying the terminal to be bent.

15. The servo-driven Z-shape bending device of claim 1 , further comprising a carrier cutting blade disposed on the base and configured to cut out a portion of a carrier carrying the Z-shaped terminal after the Z-shaped terminal is formed.

16. The servo-driven Z-shape bending device of claim 15 , further comprising a vacuum adsorber disposed on the base and configured to clean the portion of the carrier carrying the Z-shaped terminal.

Assignees

• Tyco Electronics Shanghai Co Ltd
• Tyco Electronics Polska Sp Z O O
• TE Connectivity Services Gmbh
• Kunshan League Automechanism Co Ltd
• Te Connectivity Solutions Gmbh
• Kunshan Leagure Automechanism Co Ltd

Inventors

• Xie Fengchun
• Kowalski Jaroslaw
• Przybylski Andrzej
• Zhang Dandan
• Hu lvhai
• Deng Yingcong
• Cao Jian
• Mrozik Radoslaw
• Lu Roberto Francisco-Yi
• Wu Haidong

Classifications

• B21D5/02 Primary

  on press brakes without making use of clamping means · CPC title

• B21F1/00 Primary

  Bending wire other than coiling; Straightening wire · CPC title

• H01R43/16

  for manufacturing contact members, e.g. by punching and by bending · CPC title

• B21D11/10

  Bending specially adapted to produce specific articles, e.g. leaf springs {(making or bending leaf springs B21D53/886)} · CPC title