Live tooling systems for machine tools

• US 7,823,434 B2
• Filed: 12/24/2007
• Issued: 11/02/2010
• Est. Priority Date: 04/27/2007
• Status: Active Grant

• Current Assignee: Wilson Tool International Incorporated
• Original Assignee: Wilson Tool International Incorporated
• Inventors: Lee, Brian J., Shimota, Jon M.
• Primary Examiner(s): Jones; David B
• Application Number:
  US11/963,914
• Publication Number:
  US 20090007747A1
• Time in Patent Office: 1,044 Days
• Field of Search: 723/51, 724/42, 724/46, 724/47, 724/48, 724/531.3, 724/72, 604/14, 604/31, 604/32, 604/77, 835/52, 835/63, 29/33.J, 29/36
• US Class Current: 72/442
• CPC Class Codes: B21D 28/002 Drive of the tools B21D28/007 and B21D28/20 take precedence
• CPC Class Codes: B21D 28/12 Punching using rotatable carriers
• CPC Class Codes: B21D 28/26 in sheets or flat parts
• CPC Class Codes: B23B 43/00 Boring or drilling devices able to be attached to a machine tool, whether or not replacing an operative portion of the machine tool if specially adapted for particular work B23B41/00
• CPC Class Codes: B23G 3/005 for enabling presses to be used for thread cutting
• CPC Class Codes: B23K 26/0093 combined with mechanical machining or metal-working covered by other subclasses than B23K combined welding or cutting procedures or apparatus B23K28/02
• CPC Class Codes: B30B 15/148 Electrical control arrangements
• CPC Class Codes: B41J 3/413 for metal
• CPC Class Codes: H02K 21/14 with magnets rotating within the armatures
• CPC Class Codes: H02K 7/07 using pawls and ratchet wheels
• CPC Class Codes: H02K 7/14 Structural association with mechanical loads, e.g. with hand-held machine tools or fans with fan or impeller for cooling the machine H02K9/06
• CPC Class Codes: H02K 7/1807 Rotary generators H02K7/006 takes precedence
• CPC Class Codes: H02K 7/1892 Generators with parts oscillating or vibrating about an axis
• CPC Class Codes: Y10T 29/5153 Multiple turret
• CPC Class Codes: Y10T 29/519 Turret
• CPC Class Codes: Y10T 83/8727 Plural tools selectively engageable with single drive
• CPC Class Codes: Y10T 83/8732 Turret of tools
• CPC Class Codes: Y10T 83/8748 Tool displaceable to inactive position [e.g., for work loading]

Abstract

In conventional ram-driven presses, the downward stroke of the ram into a tool causes acceleration of the tool, thereby facilitating an operation on a workpiece by the tip of the tool. While the ram stroke is found to impart sufficient dynamic energy to the tool to facilitate the necessitated operation by the tool tip, there are other more efficient, and in turn, more effective, means and methods of actuating the tool tip, with such means and methods being facilitated from energy derived from the tool'"'"'s acceleration or from energy from other external sources.

Claims

1. A tool adapted for use on a metal-fabricating press having a ram configured to strike and accelerate the tool, the tool having a generator adapted to transform dynamic energy from a stroke of the ram into electrical energy, wherein the dynamic energy comprises kinetic mechanical energy and wherein the tool includes a flywheel that undergoes rotary motion in response to axial movement of a shaft of the tool.

2. The tool of claim 1 wherein the generator comprises a magnet and a coil.

3. The tool of claim 2 wherein the tool has an axis, and a shaft of the tool moves along the axis during said acceleration of the tool, and wherein in response to said axial movement of the shaft the magnet undergoes a relative rotation with respect to the coil about the axis, thereby creating the electrical energy.

4. The tool of claim 2 wherein the magnet is part of a series of magnets that undergo rotary motion in response to said acceleration of the tool.

5. The tool of claim 4 wherein the magnets are disposed on the flywheel.

6. The tool of claim 5, wherein the flywheel is incorporated into the tool.

7. The tool of claim 1 wherein the tool has a head that is driven by the ram to initiate said acceleration of the tool, the tool having a housing in which the flywheel is located, the tool having a spring located between the head and the housing, the spring encompassing the shaft.

8. The tool of claim 1 wherein said axial movement of the shaft causes a driven body, which is coupled with the shaft, to rotate, the driven body being coupled with the flywheel such that said rotation of the driven body mechanically urges the flywheel into rotary motion.

9. The tool of claim 8 wherein the driven body is coupled with the flywheel by virtue of at least one pawl adapted to transfer force from the driven body to the flywheel so as to set the flywheel in motion.

10. The tool of claim 1 wherein a motor is incorporated into the tool, the motor being electrically coupled with the generator such that electrical energy created by the generator can be used to power the motor.

11. The tool of claim 1 wherein the tool includes a reserve adapted to store electrical energy created by the generator.

12. The tool of claim 11 wherein the reserve is adapted to deliver electric current so as to energize a component of the tool, thereby causing the tool to act on a workpiece.

13. The tool of claim 12 wherein the tool is configured such that said act is selected from the group consisting of punching the workpiece, bending the workpiece, creating a form in the workpiece, rotary cutting of the workpiece, deburring the workpiece, tapping the workpiece, ink printing on the workpiece, spotwelding the workpiece, forming a swirl pattern on the workpiece, measuring the workpiece, and inspecting the workpiece.

14. The tool of claim 11 wherein the reserve comprises a rechargeable battery carried on the tool.

15. The tool of claim 1 wherein the generator is electrically coupled to a reserve remote from the tool, wherein electrical energy created by the generator is stored by the reserve, the reserve being adapted to deliver electric current so as to energize a component of the tool, thereby causing the tool to act on a workpiece.

16. The tool of claim 1 wherein said acceleration of the tool involves movement of at least one component of the tool.

17. The tool of claim 16 wherein said moveable component comprises a head of the tool.

18. The tool of claim 16 wherein said moveable component comprises a shaft that moves axially during said acceleration of the tool.

19. A tool and a metal-fabricating press in combination, the tool being operably mounted on the press, the press having a ram configured to accelerate the tool, the tool having a generator adapted to transform dynamic energy, created when the ram accelerates the tool, into electrical energy, wherein the tool includes a reserve adapted to store electrical energy created by the generator, the reserve comprising a rechargeable battery carried on the tool.

20. The combination of claim 19 wherein the dynamic energy comprises kinetic mechanical energy.

21. The combination of claim 19 wherein the press has a table with multiple stations each including a mount opening passing through the table, wherein the ram and the table are adapted for relative movement such that the ram can be selectively aligned with different stations of the table.

22. The combination of claim 21 wherein the press is a turret press, said table is an upper turret table, the turret press includes a lower turret table, and the upper and lower turret tables are rotatable about a vertical axis.

23. The combination of claim 20 wherein the generator comprises a magnet and a coil.

24. The combination of claim 23 wherein the tool has an axis, and a shaft of the tool moves along the axis during said acceleration of the tool, and wherein in response to said axial movement of the shaft the magnet undergoes a relative rotation with respect to the coil about the axis, thereby creating the electrical energy.

25. The combination of claim 20 wherein the tool includes a flywheel that undergoes rotary motion in response to axial movement of a shaft of the tool.

26. The combination of claim 25 wherein the tool has a head that is driven by the ram to initiate said acceleration of the tool, the tool having a housing in which the flywheel is located, the tool having a spring located between the head and the housing, the spring encompassing the shaft.

27. The combination of claim 25 wherein said axial movement of the shaft causes a driven body, which is coupled with the shaft, to rotate, the driven body being coupled with the flywheel such that said rotation of the driven body mechanically urges the flywheel into rotary motion.

28. The combination of claim 19 wherein a motor is incorporated into the tool, the motor being electrically coupled with the generator such that electrical energy created by the generator can be used to power the motor.

29. The combination of claim 19 wherein the reserve is adapted to deliver electric current so as to energize a component of the tool, thereby causing the tool to act on a workpiece.

30. The combination of claim 23 wherein the magnet is part of a series of magnets that undergo rotary motion in response to said acceleration of the tool.

31. The combination of claim 30 wherein the magnets are disposed on a flywheel incorporated into the tool.

32. The combination of claim 27 wherein the driven body is coupled with the flywheel by virtue of at least one pawl adapted to transfer force from the driven body to the flywheel so as to set the flywheel in motion.

33. The combination of claim 23 wherein the magnet moves linearly in response to said acceleration of the tool.

34. The combination of claim 29 wherein the tool is configured such that said act is selected from the group consisting of punching the workpiece, bending the workpiece, creating a form in the workpiece, rotary cutting of the workpiece, deburring the workpiece, tapping the workpiece, ink printing on the workpiece, spotwelding the workpiece, forming a swirl pattern on the workpiece, measuring the workpiece, and inspecting the workpiece.

35. The combination of claim 19 wherein said acceleration of the tool involves movement of at least one component of the tool.

36. A method of using a press, the method involving a tool and a metal-fabricating press in combination, the tool being operably mounted on the press, the press having a ram configured to strike and accelerate the tool, the tool having a generator adapted to transform kinetic mechanical energy, created when the ram accelerates the tool, into electrical energy, the method comprising actuating the ram of the press to accelerate the tool thereby causing the generator to transform said dynamic energy into electrical energy.

37. The method of claim 36 wherein dynamic energy comprises kinetic mechanical energy, and wherein the generator transforms the kinetic mechanical energy into said electrical energy.

38. The method of claim 36 wherein the tool includes a reserve, and the method comprises storing in the reserve electrical energy created by the generator.

39. The method of claim 38 wherein the method comprises delivering electric current from the reserve to energize a component of the tool, thereby causing the tool to act on a workpiece.

40. The method of claim 39 wherein said act is selected from the group consisting of punching the workpiece, bending the workpiece, creating a form in the workpiece, rotary cutting of the workpiece, deburring the workpiece, tapping the workpiece, ink printing on the workpiece, spotwelding the workpiece, forming a swirl pattern on the workpiece, measuring the workpiece, and inspecting the workpiece.

41. The method of claim 36 wherein a motor is incorporated into the tool and is electrically coupled with the generator, the method comprising powering the motor with electrical energy created by the generator.

42. The method of claim 37 wherein the generator comprises a magnet and a coil, the tool has an axis, and a shaft of the tool moves along the axis during said acceleration of the tool, and wherein in response to said axial movement of the shaft the magnet undergoes a relative rotation with respect to the coil about the axis, thereby creating the electrical energy.

43. The method of claim 37 wherein the tool has a flywheel that undergoes rotary motion in response to axial movement of a shaft of the tool.

44. The method of claim 43 wherein said axial movement of the shaft causes a driven body of the tool to rotate, the driven body being coupled with the flywheel such that said rotation of the driven body mechanically urges the flywheel into rotary motion.

45. The method of claim 44 wherein at least one pawl transfers force from the driven body to the flywheel and thereby mechanically sets the flywheel in motion.

46. A tool adapted for use on a metal-fabricating press, the tool having a power source, the power source being adapted to deliver electric current so as to energize a component of the tool, thereby causing the tool to act on a workpiece, wherein the power source comprises a reserve and the tool is adapted to s provide a dual-charging capability characterized by the reserve being chargeable by either of two charging methods, a first of the charging methods involving use of a generator incorporated into the tool, the generator being adapted to transform dynamic energy, created when a ram of the press accelerates the tool, into electrical energy, the electrical energy being provided to the reserve, a second of the charging methods involving an external source of AC or DC power being connected to a power port on the tool so as to deliver electric current from the external source to the reserve.

47. The tool of claim 46 wherein the dynamic energy comprises kinetic mechanical energy.

48. The tool of claim 46 wherein said component comprises a motor that is incorporated into the tool, the motor being electrically coupled with the power source such electric current from the power source can be used to power the motor.

49. The tool of claim 46 wherein the tool is configured such that said act is selected from the group consisting of punching the workpiece, bending the workpiece, creating a form in the workpiece, rotary cutting of the workpiece, deburring the workpiece, tapping the workpiece, ink printing on the workpiece, spotwelding the workpiece, forming a swirl pattern on the workpiece, measuring the workpiece, and inspecting the workpiece.

50. The tool of claim 46 wherein the power source is adapted to deliver electric current so as to energize a laser marking head of the tool.

51. The tool of claim 46 wherein the power source is adapted to deliver electric current so as to energize a laser cutting head of the tool.

52. The tool of claim 46 wherein the power source is an internal power source incorporated into the tool.