IP Library Granted Patent US 10,264,720
Granted Patent B1
US 10,264,720 · App. 14/747,937 · Granted Apr 16, 2019

Lead trimming module

Inventors: Dason Cheung (Fremont, CA); Murad Kurwa (San Jose, CA)
Assignee: Flextronics AP, LLC
H05K13/0473B26D1/16B26D7/1863Y10S83/942Y10T29/515
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Quick Facts
Patent No.
US 10,264,720
App. No.
14/747,937
Granted
Apr 16, 2019
Kind
B1
Abstract

A lead trimming module and system provides automated means for trimming leads of a mounted electrical component. A controller executes a programmable lead trimming algorithm and correspondingly controls a movement apparatus, such as an XYZ gantry robot, and mounted lead trimming module for selectively trimming lead protrusions to a programmed lead length.

Claims (53)

1. A lead trimming device comprising:

a. a lead trimmer configured to cut a lead protruding from a component, wherein the lead trimmer comprises a bracket having a first end and a second end opposite the first end, wherein the lead trimmer further comprises a fixed cutting handle fixedly coupled to the bracket and a movable cutting handle movably coupled to the fixed cutting handle at a pivot point, further wherein the entire fixed cutting handle remains fixed in position relative to the bracket;

b. a pneumatic actuator coupled to the lead trimmer, wherein the pneumatic actuator is configured to actuate the lead trimmer;

c. a collection tube configured to receive a trimmed portion of the lead cut from the lead by the lead trimmer, wherein the collection tube comprises a first end and a second end opposite the first end of the collection tube, the first end of the collection tube directly connected to the first end of the bracket, further wherein an entirety of the lead trimmer is positioned externally to the collection tube; and

d. a rotation motor assembly coupled to the lead trimmer, wherein the rotation motor assembly is configured to rotate the lead trimmer between a plurality of different cutting angles, wherein the rotation motor assembly comprises a rotation motor and a drive cam, the drive cam is coupled to the rotation motor and is rotatably connected to the collection tube.

2. The lead trimming device of claim 1 wherein the rotation motor assembly is configured to rotate the lead trimmer in an X-Y plane so as to access the lead protruding at least partly in a Z-direction.

3. The lead trimming device of claim 1 wherein the bracket is planar.

4. The lead trimming device of claim 1 wherein the pneumatic actuator is directly connected to the lead trimmer.

5. The lead trimming device of claim 1 wherein the second end of the bracket is free floating.

6. The lead trimming device of claim 1 wherein the collection tube has a circular cylindrical shape.

7. The lead trimming device of claim 1 wherein a first end of the fixed cutting handle and a first end of the movable cutting handle form a cutting head.

8. The lead trimming device of claim 7 wherein a second end of the movable cutting handle is coupled to the pneumatic actuator.

9. The lead trimming device of claim 7 wherein the first end of the collection tube comprises an opening positioned proximate the cutting head of the lead trimmer.

10. The lead trimming device of claim 9 further comprising a vacuum hose coupled to the second end of the collection tube, wherein the second end of the collection tube has an opening and the vacuum hose is configured to remove the trimmed portion of the lead received by the collection tube.

11. A lead trimming device comprising:

a. a lead trimmer configured to cut a lead protruding from a component, wherein the lead trimmer comprises a bracket having a first end and a second end opposite the first end;

b. a pneumatic actuator coupled to the lead trimmer, wherein the pneumatic actuator is configured to actuate the lead trimmer;

c. a collection tube configured to receive a trimmed portion of the lead cut from the lead by the lead trimmer, wherein the collection tube comprises a first end and a second end opposite the first end of the collection tube, the first end of the collection tube directly connected to the first end of the bracket, further wherein an entirety of the lead trimmer is positioned externally to the collection tube; and

d. a rotation motor assembly coupled to the lead trimmer, wherein the rotation motor assembly is configured to rotate the lead trimmer between a plurality of different cutting angles, wherein the rotation motor assembly comprises a rotation motor and a drive cam, the drive cam is coupled to the rotation motor and is rotatably and directly connected to the collection tube.

12. A system for lead trimming, the system comprising:

a. a gantry robot;

b. a lead trimming device coupled to the gantry robot, the lead trimming device comprising:

i. a lead trimmer configured to cut a lead protruding from a component, wherein the lead trimmer comprises a bracket having a first end and a second end opposite the first end, wherein the lead trimmer further comprises a fixed cutting handle fixedly coupled to the bracket and a movable cutting handle movably coupled to the fixed cutting handle at a pivot point, further wherein the entire fixed cutting handle remains fixed in position relative to the bracket;

ii. a pneumatic actuator coupled to the lead trimmer, wherein the pneumatic actuator is configured to actuate the lead trimmer;

iii. a collection tube configured to receive a trimmed portion of the lead cut from the lead by the lead trimmer, wherein the collection tube comprises a first end and a second end opposite the first end of the collection tube, the first end of the collection tube directly connected to the first end of the bracket, further wherein an entirety of the lead trimmer is positioned externally to the collection tube; and

iv. a rotation motor assembly coupled to the lead trimmer, wherein the rotation motor assembly is configured to rotate the lead trimmer between a plurality of different cutting angles, wherein the rotation motor assembly comprises a rotation motor and a drive cam, the drive cam is coupled to the rotation motor and is rotatably connected to the collection tube; and

c. a control module coupled to the gantry robot and to the lead trimming device.

13. The system of claim 12 wherein the gantry robot comprises an XYZ gantry robot.

14. The system of claim 12 wherein the control module is configured to adjust a position of the lead trimmer for different lead length protrusions of the lead from the component.

15. The system of claim 12 wherein the control module is coupled to the rotation motor assembly and is configured to control the rotation motor assembly so as to select the cutting angle.

16. The system of claim 12 wherein the lead trimmer is configured to rotate in an X-Y plane so as to access the lead protruding at least partly in a Z-direction.

17. The system of claim 12 further comprising a camera coupled to the lead trimming device.

18. The lead trimming device of claim 12 wherein the bracket is planar.

19. The system of claim 12 wherein the second end of the bracket is free floating.

20. The system of claim 12 wherein a first end of the fixed cutting handle and a first end of the movable cutting handle form a cutting head.

21. The system of claim 20 wherein a second end of the movable cutting handle is coupled to the pneumatic actuator.

22. The system of claim 20 wherein the first end of the collection tube comprises an opening positioned proximate the cutting head of the lead trimmer.

23. The system of claim 22 further comprising a vacuum hose coupled to the second end of the collection tube, wherein the second end of the collection tube has an opening and the vacuum hose is configured to remove the trimmed portion of the lead received by the collection tube.

24. A lead trimming device comprising:

a. a lead trimmer configured to cut a lead protruding from a component, wherein the lead trimmer comprises a bracket having a first end and a second end opposite the first end;

b. a pneumatic actuator coupled to the lead trimmer, wherein the pneumatic actuator is configured to actuate the lead trimmer;

c. a collection tube configured to receive a trimmed portion of the lead cut from the lead by the lead trimmer, wherein the collection tube comprises a first end and a second end opposite the first end of the collection tube, the first end of the collection tube directly connected to the first end of the bracket, further wherein an entirety of the lead trimmer is positioned externally to the collection tube; and

d. a rotation motor assembly coupled to the lead trimmer, wherein the rotation motor assembly is configured to rotate the lead trimmer between a plurality of different cutting angles, wherein the rotation motor assembly comprises a rotation motor and a drive cam, the drive cam is coupled to the rotation motor and is rotatably connected to the collection tube, further wherein the drive cam, collection tube and bracket are configured such that rotation of the drive cam translates to rotation of the collection tube about a central axis of the collection tube, and rotation of the collection tube translates to angular rotation of the second end of the bracket about the central axis of the collection tube which changes the cutting angle of the lead trimmer.

25. The lead trimming device of claim 24 wherein the first end of the bracket is fixedly coupled to the first end of the collection tube, and rotation of the collection tube translates to a matching rotation of the first end of the bracket and the collection tube.

26. A system for lead trimming, the system comprising:

a. a gantry robot;

b. a lead trimming device coupled to the gantry robot, the lead trimming device comprising:

i. a lead trimmer configured to cut a lead protruding from a component, wherein the lead trimmer comprises a bracket having a first end and a second end opposite the first end;

ii. a pneumatic actuator coupled to the lead trimmer, wherein the pneumatic actuator is configured to actuate the lead trimmer;

iii. a collection tube configured to receive a trimmed portion of the lead cut from the lead by the lead trimmer, wherein the collection tube comprises a first end and a second end opposite the first end of the collection tube, the first end of the collection tube directly connected to the first end of the bracket, further wherein an entirety of the lead trimmer is positioned externally to the collection tube; and

iv. a rotation motor assembly coupled to the lead trimmer, wherein the rotation motor assembly is configured to rotate the lead trimmer between a plurality of different cutting angles, wherein the rotation motor assembly comprises a rotation motor and a drive cam, the drive cam is coupled to the rotation motor and is rotatably connected to the collection tube, further wherein the drive cam, collection tube and bracket are configured such that rotation of the drive cam translates to rotation of the collection tube about a central axis of the collection tube, and rotation of the collection tube translates to angular rotation of the second end of the bracket about the central axis of the collection tube which changes the cutting angle of the lead trimmer; and

c. a control module coupled to the gantry robot and to the lead trimming device.

27. The lead trimming device of claim 26 wherein the first end of the bracket is fixedly coupled to the first end of the collection tube, and rotation of the collection tube translates to a matching rotation of the first end of the bracket and the collection tube.

Assignments (9)
SECURITY INTEREST Recorded Jun 2, 2025
From: BRIGHT MACHINES, INC.; BRIGHT MACHINES AUTOMATION CORP.
To: STIFEL BANK
Reel/Frame 071467/0419 →
RELEASE OF SECURITY INTEREST IN INTELLECTUAL PROPERTY COLLATERAL AT REEL/FRAME NO. 67201/0797 Recorded Jun 2, 2025
From: JPMORGAN CHASE BANK, N.A.
To: BRIGHT MACHINES, INC.
Reel/Frame 071851/0097 →
TERMINATION AND RELEASE OF INTELLECTUAL PROPERTY SECURITY AGREEMENT AT REEL/FRAME NO. 58085/0124 Recorded May 29, 2025
From: HERCULES CAPITAL, INC.
To: BRIGHT MACHINES, INC.
Reel/Frame 071460/0482 →
TERMINATION AND RELEASE OF INTELLECTUAL PROPERTY SECURITY AGREEMENT AT REEL 057911 FRAME 0323 Recorded Apr 25, 2024
From: SILICON VALLEY BANK, A DIVISION OF FIRST-CITIZENS BANK & TRUST COMPANY (SUCCESSOR TO SILICON VALLEY BANK)
To: BRIGHT MACHINES, INC.
Reel/Frame 067238/0600 →
SECURITY INTEREST Recorded Apr 23, 2024
From: BRIGHT MACHINES, INC.
To: JPMORGAN CHASE BANK, N.A.
Reel/Frame 067201/0797 →
SECURITY INTEREST Recorded Nov 11, 2021
From: BRIGHT MACHINES, INC.
To: HERCULES CAPITAL, INC.
Reel/Frame 058085/0124 →
SECURITY INTEREST Recorded Oct 26, 2021
From: BRIGHT MACHINES, INC.; BRIGHT MACHINES AUTOMATION CORP.
To: SILICON VALLEY BANK, AS ADMINISTRATIVE AGENT AND COLLATERAL AGENT
Reel/Frame 057911/0323 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 24, 2021
From: FLEXTRONICS AP, LLC
To: BRIGHT MACHINES, INC.
Reel/Frame 055707/0012 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 23, 2015
From: CHEUNG, DASON; KURWA, MURAD
To: FLEXTRONICS AP, LLC
Reel/Frame 035887/0862 →